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      "body": "### Hey @steven.tjg I am @utopian-io. I have just upvoted you!\n#### Achievements\n- You have less than 500 followers. Just gave you a gift to help you succeed!\n- Seems like you contribute quite often. AMAZING!\n#### Suggestions\n- Contribute more often to get higher and higher rewards. I wish to see you often!\n- Work on your followers to increase the votes/rewards. I follow what humans do and my vote is mainly based on that. Good luck!\n#### Get Noticed!\n- Did you know project owners can manually vote with their own voting power or by voting power delegated to their projects? Ask the project owner to review your contributions!\n#### Community-Driven Witness!\nI am the first and only Steem Community-Driven Witness. <a href=\"https://discord.gg/zTrEMqB\">Participate on Discord</a>. Lets GROW TOGETHER!\n- <a href=\"https://v2.steemconnect.com/sign/account-witness-vote?witness=utopian-io&approve=1\">Vote for my Witness With SteemConnect</a>\n- <a href=\"https://v2.steemconnect.com/sign/account-witness-proxy?proxy=utopian-io&approve=1\">Proxy vote to Utopian Witness with SteemConnect</a>\n- Or vote/proxy on <a href=\"https://steemit.com/~witnesses\">Steemit Witnesses</a>\n\n[![mooncryption-utopian-witness-gif](https://steemitimages.com/DQmYPUuQRptAqNBCQRwQjKWAqWU3zJkL3RXVUtEKVury8up/mooncryption-s-utopian-io-witness-gif.gif)](https://steemit.com/~witnesses)\n\n**Up-vote this comment to grow my power and help Open Source contributions like this one. Want to chat? Join me on Discord https://discord.gg/Pc8HG9x**",
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      "body": "Thank you for the contribution. It has been approved.\n\nYou can contact us on [Discord](https://discord.gg/uTyJkNm).\n**[[utopian-moderator]](https://utopian.io/moderators)**",
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      "body": "![cover.png](https://res.cloudinary.com/hpiynhbhq/image/upload/v1519007804/fqhjqnvf7eyvmz52iwvs.png)\n<br>\n<a href=\"http://facebook.github.io/shimmer-android/\">Facebook Shimmer</a>\n\nHi, in this post, I will show you how to implement Shimmer Load in Android application. After reading this post hopefully you can implement shimmer load in your Android project. Alright let's get started.\n\n#### What Will I Learn?\n- Logic of how shimmer load works.\n- Implement shimmer load in your project.\n\n#### Requirements\n- Android Studio\n- Knowledge of Java\n\n#### Difficulty\n- Basic\n\n#### Tutorial Contents\nSo maybe you are wondering, what exactly is shimmer load. This is a screenshot of Youtube apps on iOS.\n![youtube-ios-shimmer.jpeg](https://res.cloudinary.com/hpiynhbhq/image/upload/v1519008092/qdwvboxyeztothihfdhn.jpg)\nShimmer load is basically a placeholder that is shown when your apps is loading, for example when fetching data from an API.\n<br>\nThere are a lot of shimmer load library which works a bit different, but in this post I will be using a library from Facebook called <a href=\"https://github.com/facebook/shimmer-android\">shimmer-android</a>.\n<br>\nThe logic behind facebook shimmer load is basically switching view between two layout. In Android it is basically playing with layout visibility.\n<br><br>\nIn this tutorial, I will make an example of searching movie data from imdb API.\n\n#### Curriculum\n#### 1. Install Dependency\nTo install this dependency, simply add `implementation 'com.facebook.shimmer:shimmer:0.1.0@aar'` in your application `build.gradle` file.\n<br>\nThis is my entire build.gradle file:\n```\napply plugin: 'com.android.application'\nandroid {\n    compileSdkVersion 27\n    buildToolsVersion '27.0.3'\n    defaultConfig {\n        applicationId \"com.steven.example.shimmerloadexample\"\n        minSdkVersion 19\n        targetSdkVersion 27\n        versionCode 1\n        versionName \"1.0\"\n        testInstrumentationRunner \"android.support.test.runner.AndroidJUnitRunner\"\n    }\n    buildTypes {\n        debug {\n            minifyEnabled false\n            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'\n        }\n        release {\n            minifyEnabled false\n            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'\n        }\n    }\n    compileOptions {\n        sourceCompatibility JavaVersion.VERSION_1_8\n        targetCompatibility JavaVersion.VERSION_1_8\n    }\n}\ndependencies {\n    implementation fileTree(include: ['*.jar'], dir: 'libs')\n    implementation 'com.android.support:appcompat-v7:27.0.2'\n    implementation \"com.android.support:recyclerview-v7:27.0.2\"\n    implementation 'com.facebook.shimmer:shimmer:0.1.0@aar'\n    implementation 'com.squareup.retrofit2:retrofit:2.3.0'\n    implementation 'com.squareup.retrofit2:converter-gson:2.3.0'\n    implementation 'com.squareup.okhttp3:logging-interceptor:3.9.1'\n    implementation 'com.github.bumptech.glide:glide:4.6.1'\n    annotationProcessor 'com.github.bumptech.glide:compiler:4.6.1'\n    testImplementation 'junit:junit:4.12'\n    androidTestImplementation 'com.android.support.test:runner:1.0.1'\n    androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.1'\n}\n```\n\n#### 2. Create A Placeholder\nThe next thing is creating a placeholder for the shimmer load. For the movie list item I will have the end result looks like this:\n<br>\n![item_movie.png](https://res.cloudinary.com/hpiynhbhq/image/upload/v1519010926/xxniauqcuvzkv6oc6dzx.png)\n<br>\nSo we need to create the place holder similar to our list item. The place holder I made looks like this:\n<br>\n![placeholder.png](https://res.cloudinary.com/hpiynhbhq/image/upload/v1519011163/rytm8mbidpjfcjxlezu8.png)\n<br>\nThis is my entire placeholder file with background colorShimmer #DDDDDD:\n```\n<?xml version=\"1.0\" encoding=\"utf-8\"?>\n<RelativeLayout xmlns:android=\"http://schemas.android.com/apk/res/android\"\n    android:layout_width=\"match_parent\"\n    android:layout_height=\"160dp\">\n\n    <View\n        android:id=\"@+id/view_image\"\n        android:layout_width=\"120dp\"\n        android:layout_height=\"match_parent\"\n        android:layout_margin=\"8dp\"\n        android:background=\"@color/colorShimmer\" />\n\n    <View\n        android:id=\"@+id/view_title\"\n        android:layout_width=\"wrap_content\"\n        android:layout_height=\"48dp\"\n        android:layout_alignParentEnd=\"true\"\n        android:layout_margin=\"8dp\"\n        android:layout_toEndOf=\"@+id/view_image\"\n        android:background=\"@color/colorShimmer\" />\n\n    <View\n        android:layout_width=\"80dp\"\n        android:layout_height=\"24dp\"\n        android:layout_above=\"@id/view_type\"\n        android:layout_alignParentEnd=\"true\"\n        android:layout_margin=\"8dp\"\n        android:background=\"@color/colorShimmer\" />\n\n    <View\n        android:id=\"@+id/view_type\"\n        android:layout_width=\"160dp\"\n        android:layout_height=\"24dp\"\n        android:layout_alignParentBottom=\"true\"\n        android:layout_alignParentEnd=\"true\"\n        android:layout_margin=\"8dp\"\n        android:background=\"@color/colorShimmer\" />\n\n</RelativeLayout>\n```\n\n#### 3. Use Placeholder\nNow it's time to use the placeholder that we've created. In your activity/fragment layout add ShimmerFrameLayout with the place holder inside it. In my example I have ShimmerFrameLayout and RecyclerView, when fetching data ShimmerFrameLayout will be shown and starts its animaton, and RecyclerView will be hide. Once all the data has been fetch and added to RecyclerView, RecyclerView will be shown, and ShimmerFrameLayout will be hide and stop its animation.\n<br>\nMy `activity_main.xml` file looks like this:\n<br>\n```\n<?xml version=\"1.0\" encoding=\"utf-8\"?>\n<LinearLayout xmlns:android=\"http://schemas.android.com/apk/res/android\"\n    xmlns:app=\"http://schemas.android.com/apk/res-auto\"\n    xmlns:shimmer=\"http://schemas.android.com/apk/res-auto\"\n    xmlns:tools=\"http://schemas.android.com/tools\"\n    android:layout_width=\"match_parent\"\n    android:layout_height=\"match_parent\"\n    android:background=\"@android:color/white\"\n    android:orientation=\"vertical\"\n    tools:context=\"com.steven.example.shimmerloadexample.ui.MainActivity\">\n\n    <android.support.v7.widget.SearchView\n        android:id=\"@+id/search_view\"\n        android:layout_width=\"match_parent\"\n        android:layout_height=\"wrap_content\"\n        android:focusable=\"true\"\n        android:focusableInTouchMode=\"true\"\n        android:theme=\"@style/Theme.AppCompat.Light\"\n        app:queryHint=\"Search here\" />\n\n    <com.facebook.shimmer.ShimmerFrameLayout\n        android:id=\"@+id/shimmer_layout\"\n        android:layout_width=\"match_parent\"\n        android:layout_height=\"wrap_content\"\n        android:visibility=\"gone\"\n        shimmer:duration=\"800\">\n\n        <LinearLayout\n            android:layout_width=\"match_parent\"\n            android:layout_height=\"wrap_content\"\n            android:orientation=\"vertical\">\n\n            <include layout=\"@layout/shimmer_placeholder\" />\n\n            <include layout=\"@layout/shimmer_placeholder\" />\n\n            <include layout=\"@layout/shimmer_placeholder\" />\n\n            <include layout=\"@layout/shimmer_placeholder\" />\n\n            <include layout=\"@layout/shimmer_placeholder\" />\n\n            <include layout=\"@layout/shimmer_placeholder\" />\n\n        </LinearLayout>\n\n    </com.facebook.shimmer.ShimmerFrameLayout>\n\n    <android.support.v7.widget.RecyclerView\n        android:id=\"@+id/recycler_view\"\n        android:layout_width=\"match_parent\"\n        android:layout_height=\"wrap_content\" />\n\n</LinearLayout>\n```\n\nAnd my 'MainActivity.java' looks like this:\n```\npublic class MainActivity extends AppCompatActivity {\n\n    private static final String TAG = MainActivity.class.getSimpleName();\n\n    private SearchView mSearchView;\n    private ShimmerFrameLayout mShimmerLayout;\n    private RecyclerView mRecyclerView;\n    private RecyclerViewAdapter mAdapter;\n    private List<Movie> mMovieList;\n\n    @Override\n    protected void onCreate(Bundle savedInstanceState) {\n        super.onCreate(savedInstanceState);\n        setContentView(R.layout.activity_main);\n        mSearchView = findViewById(R.id.search_view);\n        mShimmerLayout = findViewById(R.id.shimmer_layout);\n        mRecyclerView = findViewById(R.id.recycler_view);\n\n        mSearchView.setIconified(false);\n\n        mMovieList = new ArrayList<>();\n        mAdapter = new RecyclerViewAdapter(this);\n        mRecyclerView.setLayoutManager(new LinearLayoutManager(this, LinearLayoutManager.VERTICAL, false));\n        mRecyclerView.setItemAnimator(new DefaultItemAnimator());\n        mRecyclerView.addItemDecoration(new DividerItemDecoration(this, DividerItemDecoration.VERTICAL));\n        mRecyclerView.setAdapter(mAdapter);\n\n        mSearchView.setOnQueryTextListener(new SearchView.OnQueryTextListener() {\n            @Override\n            public boolean onQueryTextSubmit(String query) {\n                fetchData();\n                return false;\n            }\n\n            @Override\n            public boolean onQueryTextChange(String newText) {\n                return false;\n            }\n        });\n    }\n\n    @Override\n    protected void onPause() {\n        super.onPause();\n        mShimmerLayout.stopShimmerAnimation();\n    }\n\n    private void fetchData() {\n        mShimmerLayout.setVisibility(View.VISIBLE);\n        mShimmerLayout.startShimmerAnimation();\n        String keyword = mSearchView.getQuery().toString();\n        keyword = keyword.replace(\" \", \"+\");\n        RetrofitSingleton.getInstance().getRestAPI().searchTitle(keyword, 1, Config.API_KEY).enqueue(new Callback<SearchMovie>() {\n            @SuppressWarnings(\"ConstantConditions\")\n            @Override\n            public void onResponse(@NonNull Call<SearchMovie> call, @NonNull Response<SearchMovie> response) {\n                if (response.isSuccessful()) {\n                    mMovieList = response.body().Search;\n                    mAdapter.addItems(mMovieList);\n                    mAdapter.notifyDataSetChanged();\n                    mShimmerLayout.stopShimmerAnimation();\n                    mShimmerLayout.setVisibility(View.GONE);\n                    mRecyclerView.smoothScrollToPosition(0);\n                }\n            }\n\n            @Override\n            public void onFailure(@NonNull Call<SearchMovie> call, @NonNull Throwable t) {\n                if (!call.isCanceled()) {\n                    t.printStackTrace();\n                }\n                mShimmerLayout.stopShimmerAnimation();\n            }\n        });\n    }\n}\n```\n\n#### 4. Final Result\nNow let's look at the result.\n<br>\n![app.png](https://res.cloudinary.com/hpiynhbhq/image/upload/v1519013027/yrekcvhbns6155rcyklb.png)\n<br>\nIn my example I have a search view. Let's try and search \"black panther\", once I press enter on the keyboard it will run `fetchData();` and inside it I have set the visibility of ShimmerFrameLayout to visible and start its animation.\n<br>\n![load.png](https://res.cloudinary.com/hpiynhbhq/image/upload/v1519013232/n1bp4cvmccpt9ilror7i.png)\n<br><br>\nOnce 'fetchData();` response is successful and data has been added into RecyclerViewAdapter, ShimmerFrameLayout visibility will be set to gone and animation will be stop.\n<br>\n![final.png](https://res.cloudinary.com/hpiynhbhq/image/upload/v1519013404/tfpgxvdvrmnixrgbifk5.png)\n\n#### Documentation\n- You can check out facebook shimmer load library here: https://github.com/facebook/shimmer-android\n- If you want to check out the example I made in this post, you can visit here: https://github.com/steven-tjg/shimmering-load-example\n    \n\n<br /><hr/><em>Posted on <a href=\"https://utopian.io/utopian-io/@steven.tjg/how-to-implement-shimmer-load-in-android\">Utopian.io -  Rewarding Open Source Contributors</a></em><hr/>",
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      "body": "![cover.png](https://res.cloudinary.com/hpiynhbhq/image/upload/v1519007804/fqhjqnvf7eyvmz52iwvs.png)\n<br>\n<a href=\"http://facebook.github.io/shimmer-android/\">Facebook Shimmer</a>\n\nHi, in this post, I will show you how to implement Shimmer Load in Android application. After reading this post hopefully you can implement shimmer load in your Android project. Alright let's get started.\n\n#### What Will I Learn?\n- Logic of how shimmer load works.\n- Implement shimmer load in your project.\n\n#### Requirements\n- Android Studio\n- Knowledge of Java\n\n#### Difficulty\n- Basic\n\n#### Tutorial Contents\nSo maybe you are wondering, what exactly is shimmer load. This is a screenshot of Youtube apps on iOS.\n![youtube-ios-shimmer.jpeg](https://res.cloudinary.com/hpiynhbhq/image/upload/v1519008092/qdwvboxyeztothihfdhn.jpg)\nShimmer load is basically a placeholder that is shown when your apps is loading, for example when fetching data from an API.\n<br>\nThere are a lot of shimmer load library which works a bit different, but in this post I will be using a library from Facebook called <a href=\"https://github.com/facebook/shimmer-android\">shimmer-android</a>.\n<br>\nThe logic behind facebook shimmer load is basically switching view between two layout. In Android it is basically playing with layout visibility.\n<br><br>\nIn this tutorial, I will make an example of searching movie data from imdb API.\n\n#### Curriculum\n#### 1. Install Dependency\nTo install this dependency, simply add `implementation 'com.facebook.shimmer:shimmer:0.1.0@aar'` in your application `build.gradle` file.\n<br>\nThis is my entire build.gradle file:\n```\napply plugin: 'com.android.application'\nandroid {\n    compileSdkVersion 27\n    buildToolsVersion '27.0.3'\n    defaultConfig {\n        applicationId \"com.steven.example.shimmerloadexample\"\n        minSdkVersion 19\n        targetSdkVersion 27\n        versionCode 1\n        versionName \"1.0\"\n        testInstrumentationRunner \"android.support.test.runner.AndroidJUnitRunner\"\n    }\n    buildTypes {\n        debug {\n            minifyEnabled false\n            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'\n        }\n        release {\n            minifyEnabled false\n            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'\n        }\n    }\n    compileOptions {\n        sourceCompatibility JavaVersion.VERSION_1_8\n        targetCompatibility JavaVersion.VERSION_1_8\n    }\n}\ndependencies {\n    implementation fileTree(include: ['*.jar'], dir: 'libs')\n    implementation 'com.android.support:appcompat-v7:27.0.2'\n    implementation \"com.android.support:recyclerview-v7:27.0.2\"\n    implementation 'com.facebook.shimmer:shimmer:0.1.0@aar'\n    implementation 'com.squareup.retrofit2:retrofit:2.3.0'\n    implementation 'com.squareup.retrofit2:converter-gson:2.3.0'\n    implementation 'com.squareup.okhttp3:logging-interceptor:3.9.1'\n    implementation 'com.github.bumptech.glide:glide:4.6.1'\n    annotationProcessor 'com.github.bumptech.glide:compiler:4.6.1'\n    testImplementation 'junit:junit:4.12'\n    androidTestImplementation 'com.android.support.test:runner:1.0.1'\n    androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.1'\n}\n```\n\n#### 2. Create A Placeholder\nThe next thing is creating a placeholder for the shimmer load. For the movie list item I will have the end result looks like this:\n<br>\n![item_movie.png](https://res.cloudinary.com/hpiynhbhq/image/upload/v1519010926/xxniauqcuvzkv6oc6dzx.png)\n<br>\nSo we need to create the place holder similar to our list item. The place holder I made looks like this:\n<br>\n![placeholder.png](https://res.cloudinary.com/hpiynhbhq/image/upload/v1519011163/rytm8mbidpjfcjxlezu8.png)\n<br>\nThis is my entire placeholder file with background colorShimmer #DDDDDD:\n```\n<?xml version=\"1.0\" encoding=\"utf-8\"?>\n<RelativeLayout xmlns:android=\"http://schemas.android.com/apk/res/android\"\n    android:layout_width=\"match_parent\"\n    android:layout_height=\"160dp\">\n\n    <View\n        android:id=\"@+id/view_image\"\n        android:layout_width=\"120dp\"\n        android:layout_height=\"match_parent\"\n        android:layout_margin=\"8dp\"\n        android:background=\"@color/colorShimmer\" />\n\n    <View\n        android:id=\"@+id/view_title\"\n        android:layout_width=\"wrap_content\"\n        android:layout_height=\"48dp\"\n        android:layout_alignParentEnd=\"true\"\n        android:layout_margin=\"8dp\"\n        android:layout_toEndOf=\"@+id/view_image\"\n        android:background=\"@color/colorShimmer\" />\n\n    <View\n        android:layout_width=\"80dp\"\n        android:layout_height=\"24dp\"\n        android:layout_above=\"@id/view_type\"\n        android:layout_alignParentEnd=\"true\"\n        android:layout_margin=\"8dp\"\n        android:background=\"@color/colorShimmer\" />\n\n    <View\n        android:id=\"@+id/view_type\"\n        android:layout_width=\"160dp\"\n        android:layout_height=\"24dp\"\n        android:layout_alignParentBottom=\"true\"\n        android:layout_alignParentEnd=\"true\"\n        android:layout_margin=\"8dp\"\n        android:background=\"@color/colorShimmer\" />\n\n</RelativeLayout>\n```\n\n#### 3. Use Placeholder\nNow it's time to use the placeholder that we've created. In your activity/fragment layout add ShimmerFrameLayout with the place holder inside it. In my example I have ShimmerFrameLayout and RecyclerView, when fetching data ShimmerFrameLayout will be shown and starts its animaton, and RecyclerView will be hide. Once all the data has been fetch and added to RecyclerView, RecyclerView will be shown, and ShimmerFrameLayout will be hide and stop its animation.\n<br>\nMy `activity_main.xml` file looks like this:\n<br>\n```\n<?xml version=\"1.0\" encoding=\"utf-8\"?>\n<LinearLayout xmlns:android=\"http://schemas.android.com/apk/res/android\"\n    xmlns:app=\"http://schemas.android.com/apk/res-auto\"\n    xmlns:shimmer=\"http://schemas.android.com/apk/res-auto\"\n    xmlns:tools=\"http://schemas.android.com/tools\"\n    android:layout_width=\"match_parent\"\n    android:layout_height=\"match_parent\"\n    android:background=\"@android:color/white\"\n    android:orientation=\"vertical\"\n    tools:context=\"com.steven.example.shimmerloadexample.ui.MainActivity\">\n\n    <android.support.v7.widget.SearchView\n        android:id=\"@+id/search_view\"\n        android:layout_width=\"match_parent\"\n        android:layout_height=\"wrap_content\"\n        android:focusable=\"true\"\n        android:focusableInTouchMode=\"true\"\n        android:theme=\"@style/Theme.AppCompat.Light\"\n        app:queryHint=\"Search here\" />\n\n    <com.facebook.shimmer.ShimmerFrameLayout\n        android:id=\"@+id/shimmer_layout\"\n        android:layout_width=\"match_parent\"\n        android:layout_height=\"wrap_content\"\n        android:visibility=\"gone\"\n        shimmer:duration=\"800\">\n\n        <LinearLayout\n            android:layout_width=\"match_parent\"\n            android:layout_height=\"wrap_content\"\n            android:orientation=\"vertical\">\n\n            <include layout=\"@layout/shimmer_placeholder\" />\n\n            <include layout=\"@layout/shimmer_placeholder\" />\n\n            <include layout=\"@layout/shimmer_placeholder\" />\n\n            <include layout=\"@layout/shimmer_placeholder\" />\n\n            <include layout=\"@layout/shimmer_placeholder\" />\n\n            <include layout=\"@layout/shimmer_placeholder\" />\n\n        </LinearLayout>\n\n    </com.facebook.shimmer.ShimmerFrameLayout>\n\n    <android.support.v7.widget.RecyclerView\n        android:id=\"@+id/recycler_view\"\n        android:layout_width=\"match_parent\"\n        android:layout_height=\"wrap_content\" />\n\n</LinearLayout>\n```\n\nAnd my 'MainActivity.java' looks like this:\n```\npublic class MainActivity extends AppCompatActivity {\n\n    private static final String TAG = MainActivity.class.getSimpleName();\n\n    private SearchView mSearchView;\n    private ShimmerFrameLayout mShimmerLayout;\n    private RecyclerView mRecyclerView;\n    private RecyclerViewAdapter mAdapter;\n    private List<Movie> mMovieList;\n\n    @Override\n    protected void onCreate(Bundle savedInstanceState) {\n        super.onCreate(savedInstanceState);\n        setContentView(R.layout.activity_main);\n        mSearchView = findViewById(R.id.search_view);\n        mShimmerLayout = findViewById(R.id.shimmer_layout);\n        mRecyclerView = findViewById(R.id.recycler_view);\n\n        mSearchView.setIconified(false);\n\n        mMovieList = new ArrayList<>();\n        mAdapter = new RecyclerViewAdapter(this);\n        mRecyclerView.setLayoutManager(new LinearLayoutManager(this, LinearLayoutManager.VERTICAL, false));\n        mRecyclerView.setItemAnimator(new DefaultItemAnimator());\n        mRecyclerView.addItemDecoration(new DividerItemDecoration(this, DividerItemDecoration.VERTICAL));\n        mRecyclerView.setAdapter(mAdapter);\n\n        mSearchView.setOnQueryTextListener(new SearchView.OnQueryTextListener() {\n            @Override\n            public boolean onQueryTextSubmit(String query) {\n                fetchData();\n                return false;\n            }\n\n            @Override\n            public boolean onQueryTextChange(String newText) {\n                return false;\n            }\n        });\n    }\n\n    @Override\n    protected void onPause() {\n        super.onPause();\n        mShimmerLayout.stopShimmerAnimation();\n    }\n\n    private void fetchData() {\n        mShimmerLayout.setVisibility(View.VISIBLE);\n        mShimmerLayout.startShimmerAnimation();\n        String keyword = mSearchView.getQuery().toString();\n        keyword = keyword.replace(\" \", \"+\");\n        RetrofitSingleton.getInstance().getRestAPI().searchTitle(keyword, 1, Config.API_KEY).enqueue(new Callback<SearchMovie>() {\n            @SuppressWarnings(\"ConstantConditions\")\n            @Override\n            public void onResponse(@NonNull Call<SearchMovie> call, @NonNull Response<SearchMovie> response) {\n                if (response.isSuccessful()) {\n                    mMovieList = response.body().Search;\n                    mAdapter.addItems(mMovieList);\n                    mAdapter.notifyDataSetChanged();\n                    mShimmerLayout.stopShimmerAnimation();\n                    mShimmerLayout.setVisibility(View.GONE);\n                    mRecyclerView.smoothScrollToPosition(0);\n                }\n            }\n\n            @Override\n            public void onFailure(@NonNull Call<SearchMovie> call, @NonNull Throwable t) {\n                if (!call.isCanceled()) {\n                    t.printStackTrace();\n                }\n                mShimmerLayout.stopShimmerAnimation();\n            }\n        });\n    }\n}\n```\n\n#### 4. Final Result\nNow let's look at the result.\n<br>\n![app.png](https://res.cloudinary.com/hpiynhbhq/image/upload/v1519013027/yrekcvhbns6155rcyklb.png)\n<br>\nIn my example I have a search view. Let's try and search \"black panther\", once I press enter on the keyboard it will run `fetchData();` and inside it I have set the visibility of ShimmerFrameLayout to visible and start its animation.\n<br>\n![load.png](https://res.cloudinary.com/hpiynhbhq/image/upload/v1519013232/n1bp4cvmccpt9ilror7i.png)\n<br><br>\nOnce 'fetchData();` response is successful and data has been added into RecyclerViewAdapter, ShimmerFrameLayout visibility will be set to gone and animation will be stop.\n<br>\n![final.png](https://res.cloudinary.com/hpiynhbhq/image/upload/v1519013404/tfpgxvdvrmnixrgbifk5.png)\n\n#### Documentation\n- You can check out facebook shimmer load library here: https://github.com/facebook/shimmer-android\n- If you want to check out the example I made in this post, you can visit here: https://github.com/steven-tjg/shimmering-load-example\n    \n\n<br /><hr/><em>Posted on <a href=\"https://utopian.io/utopian-io/@steven.tjg/how-to-implement-shimmer-load-in-android\">Utopian.io -  Rewarding Open Source Contributors</a></em><hr/>",
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      "body": "### Hey @steven.tjg I am @utopian-io. I have just upvoted you!\n#### Achievements\n- You have less than 500 followers. Just gave you a gift to help you succeed!\n- Seems like you contribute quite often. AMAZING!\n#### Suggestions\n- Contribute more often to get higher and higher rewards. I wish to see you often!\n- Work on your followers to increase the votes/rewards. I follow what humans do and my vote is mainly based on that. Good luck!\n#### Get Noticed!\n- Did you know project owners can manually vote with their own voting power or by voting power delegated to their projects? Ask the project owner to review your contributions!\n#### Community-Driven Witness!\nI am the first and only Steem Community-Driven Witness. <a href=\"https://discord.gg/zTrEMqB\">Participate on Discord</a>. Lets GROW TOGETHER!\n- <a href=\"https://v2.steemconnect.com/sign/account-witness-vote?witness=utopian-io&approve=1\">Vote for my Witness With SteemConnect</a>\n- <a href=\"https://v2.steemconnect.com/sign/account-witness-proxy?proxy=utopian-io&approve=1\">Proxy vote to Utopian Witness with SteemConnect</a>\n- Or vote/proxy on <a href=\"https://steemit.com/~witnesses\">Steemit Witnesses</a>\n\n[![mooncryption-utopian-witness-gif](https://steemitimages.com/DQmYPUuQRptAqNBCQRwQjKWAqWU3zJkL3RXVUtEKVury8up/mooncryption-s-utopian-io-witness-gif.gif)](https://steemit.com/~witnesses)\n\n**Up-vote this comment to grow my power and help Open Source contributions like this one. Want to chat? Join me on Discord https://discord.gg/Pc8HG9x**",
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      "body": "Thank you for the contribution. It has been approved.\n\nYou can contact us on [Discord](https://discord.gg/uTyJkNm).\n**[[utopian-moderator]](https://utopian.io/moderators)**",
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      "body": "![image.jpg](https://res.cloudinary.com/hpiynhbhq/image/upload/v1517311899/jwqt9xxijwbr477ojy0v.jpg)\n\nHi, in this tutorial I will show you how to use Volley to make a network call.\n\n#### What Will I Learn?\n- Implement Volley on an Android project.\n- Use Volley to make a network call.\n\n#### Requirements\n- Android Studio\n- Basic knowledge of Java\n\n#### Difficulty\n- Basic\n\n#### Overwiew\nMost of the time when you develop an Android apps, you will need to request data from or to a server. In Android, there is something called Async Task which you can use to request data from the network. But Async Task is kinda complicated to implement and work with. Luckily there are two popular third party library that can do the same but in a much simple way, and they are Volley and Retrofit. This tutorial will be focusing on Volley, though I do plan to make another tutorial with Retrofit in the future.\n\n#### Tutorial Contents\n**1. Add Volley Dependency in Gradle**\nTo add volley dependency, you can simply add this code in the project build gradle file.\n```\nimplementation 'com.android.volley:volley:1.1.0'\n```\nThis is my whole ```build.gradle``` file:\n```\napply plugin: 'com.android.application'\nandroid {\n    compileSdkVersion 27\n    buildToolsVersion '27.0.3'\n    defaultConfig {\n        applicationId \"com.steven.example.volleyexample\"\n        minSdkVersion 21\n        targetSdkVersion 27\n        versionCode 1\n        versionName \"1.0\"\n        testInstrumentationRunner \"android.support.test.runner.AndroidJUnitRunner\"\n    }\n    buildTypes {\n        release {\n            minifyEnabled false\n            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'\n        }\n    }\n    compileOptions {\n        sourceCompatibility JavaVersion.VERSION_1_8\n        targetCompatibility JavaVersion.VERSION_1_8\n    }\n}\ndependencies {\n    implementation fileTree(include: ['*.jar'], dir: 'libs')\n    implementation 'com.android.support:appcompat-v7:27.0.2'\n    implementation 'com.android.support:design:27.0.2'\n    implementation 'com.android.support:recyclerview-v7:27.0.2'\n    implementation 'com.android.volley:volley:1.1.0'\n    implementation 'com.squareup.picasso:picasso:2.5.2'\n    testImplementation 'junit:junit:4.12'\n    androidTestImplementation 'com.android.support.test:runner:1.0.1'\n    androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.1'\n}\n\n```\n\n**2. Add Permission to connect to the internet**\nNow, in order to make a network call, the application need access or in Android it is called permission to connect to the internet. To do that simply add this line of code in your ```AndroidManifest.xml```.\n```\n<uses-permission android:name=\"android.permission.INTERNET\" />\n```\nAnd this is the code in my ```AndroidManifest.xml```.\n```\n<?xml version=\"1.0\" encoding=\"utf-8\"?>\n<manifest xmlns:android=\"http://schemas.android.com/apk/res/android\"\n    package=\"com.steven.example.volleyexample\">\n    <uses-permission android:name=\"android.permission.INTERNET\" />\n    <application\n        android:allowBackup=\"true\"\n        android:fullBackupContent=\"false\"\n        android:icon=\"@mipmap/ic_launcher\"\n        android:label=\"@string/app_name\"\n        android:roundIcon=\"@mipmap/ic_launcher_round\"\n        android:supportsRtl=\"true\"\n        android:theme=\"@style/AppTheme\">\n        <activity android:name=\".MainActivity\">\n            <intent-filter>\n                <action android:name=\"android.intent.action.MAIN\" />\n                <action android:name=\"android.intent.action.VIEW\" />\n                <category android:name=\"android.intent.category.LAUNCHER\" />\n            </intent-filter>\n        </activity>\n        <activity android:name=\".MemberActivity\" />\n    </application>\n</manifest>\n```\n\n**3. Create Volley Singleton**\nNow lets create a singleton class, so each time when you need to request to a network, you simply call this singleton class.\n\nThis is my ```VolleySingleton.java``` class code:\n\n```\npublic class VolleySingleton {\n    private static VolleySingleton mInstance;\n    private static Context mContext;\n    private RequestQueue mRequestQueue;\n    private ImageLoader mImageLoader;\n    private VolleySingleton(Context context) {\n        mContext = context;\n        mRequestQueue = getRequestQueue();\n        mImageLoader = new ImageLoader(mRequestQueue, new ImageLoader.ImageCache() {\n            private final LruCache<String, Bitmap> cache = new LruCache<>(20);\n            @Override\n            public Bitmap getBitmap(String url) {\n                return cache.get(url);\n            }\n            @Override\n            public void putBitmap(String url, Bitmap bitmap) {\n                cache.put(url, bitmap);\n            }\n        });\n    }\n    public static synchronized VolleySingleton getInstance(Context context) {\n        if (mInstance == null) {\n            mInstance = new VolleySingleton(context);\n        }\n        return mInstance;\n    }\n    public RequestQueue getRequestQueue() {\n        if (mRequestQueue == null) {\n            mRequestQueue = Volley.newRequestQueue(mContext.getApplicationContext());\n        }\n        return mRequestQueue;\n    }\n    public <T> void addToRequestQueue(Request<T> request, String tag) {\n        request.setTag(tag);\n        getRequestQueue().add(request);\n    }\n    public void cancelRequest(String tag) {\n        if (mRequestQueue != null) {\n            mRequestQueue.cancelAll(tag);\n        }\n    }\n    public ImageLoader getImageLoader() {\n        return mImageLoader;\n    }\n}\n```\n\n**4. Create Data Model**\nOkay, in this tutorial I will make a network call that request data from https://api.github.com/users. That API will return example data of Github user. So create a class for the data model and create getter and setter for each field.\n```\npublic class DataModel {\n    private String login;\n    private int id;\n    private String avatar_url;\n    private String gravatar_id;\n    private String url;\n    private String html_url;\n    private String followers_url;\n    private String following_url;\n    private String gists_url;\n    private String starred_url;\n    private String subscriptions_url;\n    private String organizations_url;\n    private String repos_url;\n    private String events_url;\n    private String recieved_events_url;\n    private String type;\n    private boolean site_admin;\n\n    public DataModel(String login, int id, String avatar_url, String gravatar_id, String url, String html_url,\n                     String followers_url, String following_url, String gists_url, String starred_url, String subscriptions_url,\n                     String organizations_url, String repos_url, String events_url, String received_events_url, String type, boolean site_admin) {\n        this.login = login;\n        this.id = id;\n        this.avatar_url = avatar_url;\n        this.gravatar_id = gravatar_id;\n        this.url = url;\n        this.html_url = html_url;\n        this.followers_url = followers_url;\n        this.following_url = following_url;\n        this.gists_url = gists_url;\n        this.starred_url = starred_url;\n        this.subscriptions_url = subscriptions_url;\n        this.organizations_url = organizations_url;\n        this.repos_url = repos_url;\n        this.events_url = events_url;\n        this.recieved_events_url = received_events_url;\n        this.type = type;\n        this.site_admin = site_admin;\n    }\n    public String getLogin() {\n        return login;\n    }\n    public void setLogin(String login) {\n        this.login = login;\n    }\n    public int getId() {\n        return id;\n    }\n    public void setId(int id) {\n        this.id = id;\n    }\n    public String getAvatar_url() {\n        return avatar_url;\n    }\n    public void setAvatar_url(String avatar_url) {\n        this.avatar_url = avatar_url;\n    }\n    public String getGravatar_id() {\n        return gravatar_id;\n    }\n    public void setGravatar_id(String gravatar_id) {\n        this.gravatar_id = gravatar_id;\n    }\n    public String getUrl() {\n        return url;\n    }\n    public void setUrl(String url) {\n        this.url = url;\n    }\n    public String getHtml_url() {\n        return html_url;\n    }\n    public void setHtml_url(String html_url) {\n        this.html_url = html_url;\n    }\n    public String getFollowers_url() {\n        return followers_url;\n    }\n    public void setFollowers_url(String followers_url) {\n        this.followers_url = followers_url;\n    }\n    public String getFollowing_url() {\n        return following_url;\n    }\n    public void setFollowing_url(String following_url) {\n        this.following_url = following_url;\n    }\n    public String getGists_url() {\n        return gists_url;\n    }\n    public void setGists_url(String gists_url) {\n        this.gists_url = gists_url;\n    }\n    public String getStarred_url() {\n        return starred_url;\n    }\n    public void setStarred_url(String starred_url) {\n        this.starred_url = starred_url;\n    }\n    public String getSubscriptions_url() {\n        return subscriptions_url;\n    }\n    public void setSubscriptions_url(String subscriptions_url) {\n        this.subscriptions_url = subscriptions_url;\n    }\n    public String getOrganizations_url() {\n        return organizations_url;\n    }\n    public void setOrganizations_url(String organizations_url) {\n        this.organizations_url = organizations_url;\n    }\n    public String getRepos_url() {\n        return repos_url;\n    }\n    public void setRepos_url(String repos_url) {\n        this.repos_url = repos_url;\n    }\n    public String getEvents_url() {\n        return events_url;\n    }\n    public void setEvents_url(String events_url) {\n        this.events_url = events_url;\n    }\n    public String getRecieved_events_url() {\n        return recieved_events_url;\n    }\n    public void setRecieved_events_url(String recieved_events_url) {\n        this.recieved_events_url = recieved_events_url;\n    }\n    public String getType() {\n        return type;\n    }\n    public void setType(String type) {\n        this.type = type;\n    }\n    public boolean isSite_admin() {\n        return site_admin;\n    }\n    public void setSite_admin(boolean site_admin) {\n        this.site_admin = site_admin;\n    }\n``` \n\n**5. Make Network Call**\nNow its time to make a network call. Since the data we get from API is an array of object, we will use JsonArrayRequest. If the data returned is an object, then you can use JsonObjectRequest. In the example code below. After the request is successful, we need to loop and insert each field of the object into an List, then we can pass the List into a RecyclerViewAdapter and show the result in a RecyclerView. After creating a request, add it to the queue by calling VolleySingleton instance.\n\n```\nJsonArrayRequest request = new JsonArrayRequest(Request.Method.GET, REQUEST_URL, null, response -> {\n            List<DataModel> data = new ArrayList<>();\n            for (int i = 0; i < response.length(); i++) {\n                try {\n                    JSONObject object = response.getJSONObject(i);\n                    DataModel model = new DataModel(object.getString(\"login\"),\n                            object.getInt(\"id\"), object.getString(\"avatar_url\"),\n                            object.getString(\"gravatar_id\"), object.getString(\"url\"),\n                            object.getString(\"html_url\"), object.getString(\"followers_url\"),\n                            object.getString(\"following_url\"), object.getString(\"gists_url\"),\n                            object.getString(\"starred_url\"), object.getString(\"subscriptions_url\"),\n                            object.getString(\"organizations_url\"), object.getString(\"repos_url\"),\n                            object.getString(\"events_url\"), object.getString(\"received_events_url\"),\n                            object.getString(\"type\"), object.getBoolean(\"site_admin\"));\n                    data.add(model);\n                } catch (Exception e) {\n                    Log.d(TAG, e.toString());\n                } finally {\n                    mAdapter.clearItems();\n                    mAdapter.addItems(data);\n                    mAdapter.notifyDataSetChanged();\n                }\n            }\n        }, error -> {\n            Log.d(TAG, error.toString());\n });\nVolleySingleton.getInstance(this.getApplicationContext()).addToRequestQueue(request, NETWORK_CALL);\n```\n\n**6. Display Data in Recycler View**\nNow it is time to show data from the API in a RecyclerView. First we need to create a layout for the recycler view holder. In this example I name it ```item_user.xml``` with the following code:\n```\n<?xml version=\"1.0\" encoding=\"utf-8\"?>\n<android.support.v7.widget.AppCompatImageView xmlns:android=\"http://schemas.android.com/apk/res/android\"\n    android:id=\"@+id/user_avatar\"\n    android:layout_width=\"match_parent\"\n    android:layout_height=\"wrap_content\"\n    android:scaleType=\"centerCrop\" />\n```\nThe next step is to bind ```item_user.xml``` to an adapter by overriding the onCreateViewHolder method. Then set the data that we get from API to RecyclerView in the onBindView method. The example code below is an RecyclerViewAdapter.\n```\npublic class RecyclerViewAdapter extends RecyclerView.Adapter<RecyclerView.ViewHolder> {\n    private Context mContext;\n    private List<DataModel> mUserData = new ArrayList<>();\n    RecyclerViewAdapter(Context context) {\n        mContext = context;\n    }\n    @Override\n    public RecyclerView.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {\n        return new UserDataViewHolder(LayoutInflater.from(mContext).inflate(R.layout.item_user, parent, false));\n    }\n    @Override\n    public void onBindViewHolder(RecyclerView.ViewHolder holder, int position) {\n        UserDataViewHolder userDataViewHolder = (UserDataViewHolder) holder;   VolleySingleton.getInstance(mContext).getImageLoader().get(mUserData.get(position).getAvatar_url(), new ImageLoader.ImageListener() {\n            @Override\n            public void onResponse(ImageLoader.ImageContainer response, boolean isImmediate) {\n                userDataViewHolder.mUserAvatar.setImageBitmap(response.getBitmap());\n            }\n            @Override\n            public void onErrorResponse(VolleyError error) {\n            }\n        });\n        userDataViewHolder.mUserAvatar.setOnClickListener(v -> mContext.startActivity(new Intent(mContext, MemberActivity.class).\n                putExtra(MemberActivity.ARG_LOGIN, mUserData.get(position).getLogin()).\n                putExtra(MemberActivity.ARG_ID, mUserData.get(position).getId()).\n                putExtra(MemberActivity.ARG_AVATAR_URL, mUserData.get(position).getAvatar_url()).\n                putExtra(MemberActivity.ARG_GRAVATAR_ID, mUserData.get(position).getGravatar_id()).\n                putExtra(MemberActivity.ARG_URL, mUserData.get(position).getUrl()).\n                putExtra(MemberActivity.ARG_HTML_URL, mUserData.get(position).getHtml_url()).\n                putExtra(MemberActivity.ARG_FOLLOWERS_URL, mUserData.get(position).getFollowers_url()).\n                putExtra(MemberActivity.ARG_FOLLOWING_URL, mUserData.get(position).getFollowing_url()).\n                putExtra(MemberActivity.ARG_GISTS_URL, mUserData.get(position).getGists_url()).\n                putExtra(MemberActivity.ARG_STARRED_URL, mUserData.get(position).getStarred_url()).\n                putExtra(MemberActivity.ARG_SUBSCRIPTIONS_URL, mUserData.get(position).getSubscriptions_url()).\n                putExtra(MemberActivity.ARG_ORGANIZATIONS_URL, mUserData.get(position).getOrganizations_url()).\n                putExtra(MemberActivity.ARG_REPOS_URL, mUserData.get(position).getRepos_url()).\n                putExtra(MemberActivity.ARG_EVENTS_URL, mUserData.get(position).getEvents_url()).\n                putExtra(MemberActivity.ARG_RECIEVED_EVENTS_URL, mUserData.get(position).getRecieved_events_url()).\n                putExtra(MemberActivity.ARG_TYPE, mUserData.get(position).getType()).\n                putExtra(MemberActivity.ARG_SITE_ADMIN, mUserData.get(position).isSite_admin())));\n    }\n    @Override\n    public int getItemCount() {\n        return mUserData.size();\n    }\n    public void addItems(List<DataModel> data) {\n        mUserData.addAll(data);\n    }\n    public void clearItems() {\n        mUserData.clear();\n    }\n    public class UserDataViewHolder extends RecyclerView.ViewHolder {\n        private AppCompatImageView mUserAvatar;\n        UserDataViewHolder(View itemView) {\n            super(itemView);\n            mUserAvatar = itemView.findViewById(R.id.user_avatar);\n        }\n    }\n}\n```\n\nThe result will look like this:\n![image.jpg](https://res.cloudinary.com/hpiynhbhq/image/upload/v1517311899/jwqt9xxijwbr477ojy0v.jpg)\n\nFor further usage, you can check out volley repository here: https://github.com/google/volley.\nYou can also check out the example project I made in this tutorial here: https://github.com/steven-tjg/volley-example.\n\n\n<br /><hr/><em>Posted on <a href=\"https://utopian.io/utopian-io/@steven.tjg/how-to-use-volley-in-android-to-make-network-call\">Utopian.io -  Rewarding Open Source Contributors</a></em><hr/>",
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