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copied!<pre><code>public class MainActivity extends Activity implements OnClickListener{ private int mAppWidgetId; private RemoteViews rv; private AppWidgetManager appWidgetManager; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); rv = new RemoteViews(this.getPackageName(), R.layout.activity_main); Button button1 = (Button)findViewById(R.id.button1); Button button2 = (Button)findViewById(R.id.button2); AnalogClock cos1 = (AnalogClock)findViewById(R.id.analogClock1); AnalogClock cos2 = (AnalogClock)findViewById(R.id.analogClock2); button1.setOnClickListener(this); button2.setOnClickListener(this); } @Override public void onClick(View view) { Intent intent = getIntent(); Bundle extras = intent.getExtras(); if (extras != null) { mAppWidgetId = extras.getInt(AppWidgetManager.EXTRA_APPWIDGET_ID,AppWidgetManager.INVALID_APPWIDGET_ID); } switch(view.getId()) { case R.id.button1: { rv.setViewVisibility(R.id.analogClock1, View.VISIBLE); rv.setViewVisibility(R.id.analogClock2, View.INVISIBLE); break; } case R.id.button2: { rv.setViewVisibility(R.id.analogClock1, View.INVISIBLE); rv.setViewVisibility(R.id.analogClock2, View.VISIBLE); break; } } AppWidgetManager appWidgetManager = AppWidgetManager.getInstance(this); appWidgetManager.updateAppWidget(mAppWidgetId, rv); Intent resultValue = new Intent(); resultValue.putExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, mAppWidgetId); setResult(RESULT_OK, resultValue); finish(); } </code></pre> <p>}</p> <p>I added few fixes and does not throw an error. :)</p>

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