is there a way to set the "task affinity" programmatically? I mean like with some Intent flag or sth? I didn't find anything about this being possible in the Android docs.
Setting the affinity in a static way in the AndroidManifest.xml with android:taskAffinity does not suit my needs.
You cannot.
taskAffinity is contained by ActivityInfo, which is member of Activity.
public class Activity extends ContextThemeWrapper
...
... {
// set by the thread after the constructor and before
// onCreate(Bundle savedInstanceState) is called.
@UnsupportedAppUsage
/*package*/ ActivityInfo mActivityInfo;
}
And ActivityInfo has taskAffinity.
/**
* Information you can retrieve about a particular application
* activity or receiver. This corresponds to information collected
* from the AndroidManifest.xml's <activity> and
* <receiver> tags.
*/
public class ActivityInfo extends ComponentInfo implements Parcelable {
/**
* The affinity this activity has for another task in the system. The
* string here is the name of the task, often the package name of the
* overall package. If null, the activity has no affinity. Set from the
* {@link android.R.attr#taskAffinity} attribute.
*/
public String taskAffinity;
According to the comment of source code, information of taskAffinity is collected from AndroidManifest.xml. And there is no public method to set mActivityInfo.taskAffinity.
Use this method :
finishAffinity();
Intent intent = new Intent(this, IntroActivity.class); // These flags disable back-pressing back into the previous activity intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TASK); startActivity(intent); finish();