I have a TabActivity that contains several Tabs (FirstTab, SecondTab). This TabActivity has an xml in which there is an image (as long as it is not visible). SecondTab has xml and adapter. How to make, that when clicking the button in the adapter belonging to SecondTab, the picture in tabActivity.xml becomes visible?

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    1 answer 1

    TabActivity was deprecated in API level 13. Not recommended.

    Your problem will solve for example LocalBroadcast

    ReceiverActivity.java

    @Override public void onCreate(Bundle savedInstanceState) { ... // Register to receive messages. // We are registering an observer (mMessageReceiver) to receive Intents // with actions named "custom-event-name". LocalBroadcastManager.getInstance(this).registerReceiver(mMessageReceiver, new IntentFilter("custom-event-name")); } // Our handler for received Intents. This will be called whenever an Intent // with an action named "custom-event-name" is broadcasted. private BroadcastReceiver mMessageReceiver = new BroadcastReceiver() { @Override public void onReceive(Context context, Intent intent) { // Get extra data included in the Intent String message = intent.getStringExtra("message"); Log.d("receiver", "Got message: " + message); } }; @Override protected void onDestroy() { // Unregister since the activity is about to be closed. LocalBroadcastManager.getInstance(this).unregisterReceiver(mMessageReceiver); super.onDestroy(); }

    SenderActivity.java

     @Override public void onCreate(Bundle savedInstanceState) { ... // Every time a button is clicked, we want to broadcast a notification. findViewById(R.id.button_send).setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { sendMessage(); } }); } // Send an Intent with an action named "custom-event-name". The Intent sent should // be received by the ReceiverActivity. private void sendMessage() { Log.d("sender", "Broadcasting message"); Intent intent = new Intent("custom-event-name"); // You can also include some extra data. intent.putExtra("message", "This is my message!"); LocalBroadcastManager.getInstance(this).sendBroadcast(intent); }
    • Thanks, works) - nesalexy