android手机旋转方向识别 _android

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private OrientationEventListener mOrientationListener; private String TAG = "MainActivity"; private int screenCurOrient = 2; //1表示正竖屏，2表示正横屏，3表示反竖屏，4表示反横屏private final void startOrientationChangeListener() { mOrientationListener = new OrientationEventListener(this) { @Override public void onOrientationChanged(int rotation) { //判断四个方向 if (rotation == -1) { Log.d(TAG, "手机平放:" + rotation); } else if (rotation < 10 || rotation > 350) { screenOrientChange(1); } else if (rotation < 100 & & rotation > 80) { screenOrientChange(4); } else if (rotation < 190 & & rotation > 170) { screenOrientChange(3); } else if (rotation < 280 & & rotation > 260) { screenOrientChange(2); } else { } } }; mOrientationListener.enable(); }private void screenOrientChange(int Orient) { if(Orient != screenCurOrient) { screenCurOrient = Orient; switch (screenCurOrient) { case 1: Log.d(TAG, "正竖屏:"); setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT); break; case 2: Log.d(TAG, "正横屏:"); setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE); break; case 3: Log.d(TAG, "反竖屏:"); setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT); break; case 4: Log.d(TAG, "反横屏:"); setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE); break; } } }

在onCreate方法中调用startOrientationChangeListener方法即可。

【android手机旋转方向识别】