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22,341 PointsToast does not show after Button click
Any ideas why the Toast does not show on Button click ?
(...)
public class MainActivity extends AppCompatActivity {
public static final String TAG = MainActivity.class.getSimpleName();
private Button downloadButton;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
downloadButton = (Button) findViewById(R.id.download_button);
downloadButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
String message = getString(R.string.downloading);
Log.d(TAG, message);
// Toast does not show after Button click
Toast.makeText(MainActivity.this, message, Toast.LENGTH_SHORT).show();
downloadSong();
} // onClick()
}); // OnClickListener()
} // onCreate()
private void downloadSong() {
(...)
} // downloadSong()
} // MainActivity
2 Answers
Trainer Workout
22,341 PointsThe problem is explained in the video by Ben. To solve this, the downloadSong() method has to be called in a separate thread than the UI thread. In order to this, we need to create a Runnable and start a Thread using that runnable.
downloadButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
String message = getString(R.string.downloading);
Log.d(TAG, message);
Toast.makeText(MainActivity.this, message, Toast.LENGTH_SHORT).show();
Runnable runnable = new Runnable() {
@Override
public void run() {
downloadSong();
} //run()
}; // Runnable()
Thread thread = new Thread(runnable);
thread.setName("DownloadThread");
thread.start();
} // onClick()
}); // OnClickListener()
Anastasiia Karpenko
2,413 PointsAlso do not forget to include android:onClick="true" to the Button view in xml file. After I included it , the toast became visible after I clicked the button