From the documentation for FLAG_ACTIVITY_CLEAR_TOP: If set, and the activity being launched is already running in the current task, then instead of launching a new instance of that activity, all of the other activities on top of it will be closed and this Intent will be delivered to the (now on top) old activity as … Read more
You can use observers , like public class MyReceiver extends BroadcastReceiver { public MyReceiver() { } @Override public void onReceive(Context context, Intent intent) { ObservableObject.getInstance().updateValue(intent); } } public class MainActivity extends Activity implements Observer { protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); ObservableObject.getInstance().addObserver(this); } @Override public void update(Observable observable, Object data) { Toast.makeText(this, String.valueOf(“activity observer … Read more
If you start the activity with startActivityForResult(Intent, int), then you can get calling activity by getCallingActivity().getClassName().
I’ve solved this issue by changing the launchMode of my activity to singleTask in the androidManifest.xml file. The default value for this property is standard, which allows any number of instances to run. “singleTask” and “singleInstance” activities can only begin a task. They are always at the root of the activity stack. Moreover, the device … Read more
You can use the putExtra attribute of the Intent to pass the name of the Activity. Calling Activity, Intent intent = new Intent(this, Next.class); intent.putExtra(“activity”,”first”); startActivity(intent); Next Activity, Intent intent = getIntent(); String activity = intent.getStringExtra(“activity”); Now in the string activity you will get the name from which Activity it has came.
Define an animation in res/anim/slide_in_up.xml: <?xml version=”1.0″ encoding=”utf-8″?> <translate xmlns:android=”http://schemas.android.com/apk/res/android” android:fromYDelta=”100%p” android:toYDelta=”0%p” android:duration=”@android:integer/config_longAnimTime”/> and another at res/anim/slide_out_up.xml: <?xml version=”1.0″ encoding=”utf-8″?> <translate xmlns:android=”http://schemas.android.com/apk/res/android” android:fromYDelta=”0%p” android:toYDelta=”-100%p” android:duration=”@android:integer/config_longAnimTime”/> Then apply these after to call startActivity: Intent i2 = new Intent(main.this, test.class); startActivity(i2); overridePendingTransition( R.anim.slide_in_up, R.anim.slide_out_up ); There an introduction to Android animation here which may help you further.
Create: spinner = [[UIActivityIndicatorView alloc] initWithActivityIndicatorStyle:UIActivityIndicatorViewStyleWhiteLarge]; [spinner setCenter:CGPointMake(kScreenWidth/2.0, kScreenHeight/2.0)]; // I do this because I’m in landscape mode [self.view addSubview:spinner]; // spinner is not visible until started Start: [spinner startAnimating]; Stop: [spinner stopAnimating]; When you’re finally done, remove the spinner from the view and release.
I had a similar situation. It was clearly a dev bug. I’ve overridden the wrong method: public void onSaveInstanceState(Bundle outState, PersistableBundle outPersistentState) Instead a correct one: protected void onSaveInstanceState(Bundle outState)
It makes little (if any difference). The code using an additional bundle is slightly heavier (it won’t make any difference in any practical application) and slightly easier to manage, being more general. If one day you decide that – before sending information inside an intent – you want to serialize the data to database – … Read more