onCreate在onActivityResult之前和之后调用

Question

我尝试以下方式打开相机:

...
    private void runCamera() {
        String storageState = Environment.getExternalStorageState();
        if (storageState.equals(Environment.MEDIA_MOUNTED)) {

            Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
            File imageFile = new File(Singleton.instanse.mPushFilePath);
            mImageFileUri = Uri.fromFile(imageFile);
            intent.putExtra(android.provider.MediaStore.EXTRA_OUTPUT,
                    mImageFileUri);
            startActivityForResult(intent, CAMERA_RESULT);
    }
...

如果我运行此方法运行下一个方法:

07-16 19:46:22.264: I/System.out(6875): -onPause
07-16 19:46:26.104: I/System.out(6875): -onStop

我制作照片,结束下一步的方法:

07-16 19:46:41.217: I/System.out(6875): -onDestroy
07-16 19:46:41.284: I/System.out(6875): -onCreate
07-16 19:46:41.291: I/System.out(6875): -onStart
07-16 19:46:41.295: I/System.out(6875): -onActivityResult
07-16 19:46:41.295: I/System.out(6875): -onResume
07-16 19:46:41.295: I/System.out(6875): -onPostResume
07-16 19:46:41.522: I/System.out(6875): -onPause
07-16 19:46:41.522: I/System.out(6875): -onStop
07-16 19:46:41.522: I/System.out(6875): -onDestroy
07-16 19:46:41.604: I/System.out(6875): -onCreate
07-16 19:46:41.612: I/System.out(6875): -onStart
07-16 19:46:41.616: I/System.out(6875): -onResume
07-16 19:46:41.616: I/System.out(6875): -onPostResume

为什么onDestroy运行twiсe？怎么解决？在Android 2.2中发现此问题.在Android 2.3.3 onDestroy中从未调用过!

Answer 1

实际上,相机会导致您的活动方向发生变化,这就是您的活动被销毁和重新创建的原因.

在清单文件中添加它会阻止方向更改,并且您的活动不会被销毁和重新创建.

<activity
    android:name=".YourActivity"
    android:configChanges="orientation|keyboardHidden"
    android:screenOrientation="portrait" >
</activity>

通过意图拍照后调用的活动已被杀死/ onCreate