Tag: android

<uses-permission android:name="android.permission.REQUEST_INSTALL_PACKAGES"/>

//get destination to update file and set Uri
   //TODO: First I wanted to store my update .apk file on internal storage for my app but apparently android does not allow you to open and install
   //aplication with existing package from there. So for me, alternative solution is Download directory in external storage. If there is better
   //solution, please inform us in comment
   String destination = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DOWNLOADS) + "/";
   String fileName = "AppName.apk";
   destination += fileName;
   final Uri uri = Uri.parse("file://" + destination);

   //Delete update file if exists
   File file = new File(destination);
   if (file.exists())
   //file.delete() - test this, I think sometimes it doesnt work
       file.delete();

   //get url of app on server
   String url = Main.this.getString(R.string.update_app_url);

   //set downloadmanager
   DownloadManager.Request request = new DownloadManager.Request(Uri.parse(url));
   request.setDescription(Main.this.getString(R.string.notification_description));
   request.setTitle(Main.this.getString(R.string.app_name));

   //set destination
   request.setDestinationUri(uri);

   // get download service and enqueue file
   final DownloadManager manager = (DownloadManager) getSystemService(Context.DOWNLOAD_SERVICE);
   final long downloadId = manager.enqueue(request);

   //set BroadcastReceiver to install app when .apk is downloaded
   BroadcastReceiver onComplete = new BroadcastReceiver() {
       public void onReceive(Context ctxt, Intent intent) {
           Intent install = new Intent(Intent.ACTION_VIEW);
           install.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
           install.setDataAndType(uri,
                   manager.getMimeTypeForDownloadedFile(downloadId));
           startActivity(install);

           unregisterReceiver(this);
           finish();
       }
   };
   //register receiver for when .apk download is compete
   registerReceiver(onComplete, new IntentFilter(DownloadManager.ACTION_DOWNLOAD_COMPLETE));

References
https://stackoverflow.com/questions/4967669/android-install-apk-programmatically
https://stackoverflow.com/questions/39147608/android-install-apk-with-intent-view-action-not-working-with-file-provider/40131196#40131196

yourRecyclerView.getLayoutManager().findFirstVisibleItemPosition();

you probably need to cast your LayoutManager to a LinearLayoutManager or GridLayoutManager (you have to cast to the correct type you are using) to access these findVisibleXXXX() methods.

References
https://stackoverflow.com/questions/38247602/android-how-can-i-get-current-positon-on-recyclerview-that-user-scrolled-to-item

OkHttpClient eagerClient = client.newBuilder()
    .readTimeout(500, TimeUnit.MILLISECONDS)
    .build();
Response response = eagerClient.newCall(request).execute();

References
https://square.github.io/okhttp/4.x/okhttp/okhttp3/-ok-http-client/

./gradlew assembleRelease or assemble(#your_defined_buildtype)

References
https://stackoverflow.com/questions/20921456/android-studio-how-to-generate-signed-apk-using-gradle
https://developer.android.com/studio/build/building-cmdline

android {
    defaultConfig {
        applicationId "com.example.myapp"
    }
    productFlavors {
        free {
            applicationIdSuffix ".free"
        }
        pro {
            applicationIdSuffix ".pro"
        }
    }
}

android { 
    ...
    flavorDimensions "default"
    ...
}

It is better to use different AndroidManifest.xml and google-services.json file for each flavor

References
https://developer.android.com/studio/build/application-id
https://developers.google.com/android/guides/google-services-plugin
https://stackoverflow.com/questions/44105127/android-studio-3-0-flavor-dimension-issue
https://android.jlelse.eu/how-to-use-different-google-services-json-file-with-multiple-product-flavors-android-7853d98dd6c0
https://stackoverflow.com/questions/34990479/no-matching-client-found-for-package-name-google-analytics-multiple-productf
https://medium.com/@Miqubel/multiple-build-types-in-firebase-on-android-6f6715f6dd83
https://www.zidsworld.com/android-tutorials/here-is-how-to-fix-no-matching-client-found-for-package-name-on-android/

AndroidManifest.xml

<?xml version="1.0" encoding="utf-8"?>
<manifest ...>
    <uses-permission android:name="android.permission.INTERNET" />
    <application
        ...
        android:usesCleartextTraffic="true"
        ...>
        ...
    </application>
</manifest>

References
https://stackoverflow.com/questions/45940861/android-8-cleartext-http-traffic-not-permitted