如何使用putExtra()与FLAG_ACTIVITY_REORDER_TO_FRONT在Android应用? [英] How to use putExtra() with FLAG_ACTIVITY_REORDER_TO_FRONT in Android Apps?
问题描述
我有一个应用程序,称之为App1的。在我App1的我调用相机应用程序。
I have an application, call "App1". In my App1 I invoke Camera application.
intent = new Intent(Intent.ACTION_MAIN);
intent.setComponent(new ComponentName("com.android.camera","com.android.camera.Camera"));
startActivity(intent);
在这之后,我用FileObserver倾听用户是否拍照。当发生这种情况我称之为
After that, I use FileObserver to listen whether user take a photo. When this happens I call
Context ctx = App1.this.getApplicationContext();
Intent j = new Intent(ctx, App1.class);
j.setFlags(Intent.FLAG_ACTIVITY_REORDER_TO_FRONT);
j.putExtra("type", 1);
startActivity(j);
它的工作原理,我的意思是得到我的应用程序前我怎么离开它,但是我需要传递一个整数,这就是所谓的类型。我想,我的应用程序将调用onResume(),但我怎么能获得额外的整数。这种类型的传递并没有在我的应用程序做任何事情。
It works, I mean it gets my application to front how I leave it, however I need to pass an integer, which is called "type". I think, my application will call "onResume()" but how can I get that extra integer. This type of passing didn't do anything in my application.
有捆绑savedInstanceState在onCreate方法,但在onResume方法没有这样的事情。所以,我需要你的帮助来解决这个问题。先谢谢了。
There's Bundle savedInstanceState in onCreate method, but there is no such a thing in onResume method. So, I need your help to solve this problem. Thanks in advance.
推荐答案
您需要重写<一个href="http://developer.android.com/reference/android/app/Activity.html#onNewIntent%28android.content.Intent%29">Activity.onNewIntent()方法。
@Override
protected void onNewIntent(Intent intent) {
super.onNewIntent(intent);
setIntent(intent);
}
在 onNewIntent()
被调用,在正常 onResume()
的生命周期将随之而来。或者,你可以写在 onNewIntent您code()
本身。
After onNewIntent()
is called, the normal onResume()
lifecycle will follow. Alternatively, you can write your code in onNewIntent()
itself.
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