我有以下情况。活动 A 启动活动 B。B 启动一个通知，单击该通知将启动另一个活动 C。现在 Gingerbread 和 ICS 以后的行为有所不同。当我单击通知时，如果是 Gingerbread，则会看到预期的行为，但是当我在单击通知时在 ICS 或 JellyBean 上运行相同的代码时，活动 A 被破坏（调用 OnDestroy）。为什么生命周期行为不同。如何使其在所有设备中以一致的方式运行？请建议。
public class MainActivity extends Activity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Log.v("MyLog","Activity A created");
}
@Override
protected void onDestroy() {
super.onDestroy();
Log.v("MyLog","Activity A destroyed");
}
public void startB(View v)
{
Intent intent=new Intent(getApplicationContext(),B.class);
startActivity(intent);
}
protected void onStop()
{
super.onStop();
Log.v("MyLog","Activity A stopped");
}
protected void onResume()
{
super.onResume();
Log.v("MyLog","Activity A resumed");
}
}
}
public class B extends Activity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.b);
Log.v("MyLog","Activity B created");
}
protected void onStop()
{
super.onStop();
Log.v("MyLog","Activity B stopped");
}
protected void onResume()
{
super.onResume();
Log.v("MyLog","Activity B resumed");
}
public void startNotification(View v)
{
NotificationCompat.Builder mBuilder =
new NotificationCompat.Builder(getApplicationContext())
.setSmallIcon(R.drawable.notification_icon)
.setContentTitle("My notification")
.setContentText("Hello World!")
.setAutoCancel(true);
// Creates an explicit intent for an Activity in your app
Intent resultIntent = new Intent(getApplicationContext(), C.class);
// The stack builder object will contain an artificial back stack for the
// started Activity.
// This ensures that navigating backward from the Activity leads out of
// your application to the Home screen.
TaskStackBuilder stackBuilder = TaskStackBuilder.create(getApplicationContext());
// Adds the back stack for the Intent (but not the Intent itself)
stackBuilder.addParentStack(C.class);
// Adds the Intent that starts the Activity to the top of the stack
stackBuilder.addNextIntent(resultIntent);
PendingIntent resultPendingIntent =
stackBuilder.getPendingIntent(0,PendingIntent.FLAG_UPDATE_CURRENT);
mBuilder.setContentIntent(resultPendingIntent);
NotificationManager mNotificationManager =
(NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
// mId allows you to update the notification later on.
int mId=1;
mNotificationManager.notify(mId, mBuilder.build());
}
}
public class C extends Activity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.c);
Log.v("MyLog","Activity C created");
}
protected void onStop()
{
super.onStop();
Log.v("MyLog","Activity C stopped");
}
protected void onResume()
{
super.onResume();
Log.v("MyLog","Activity C resumed");
}
}