android 屏幕横向显示,Android 屏幕处于横屏状态 旋转180度界面切换显示

@Override

protected void onResume() {

super.onResume();

mSreenOrientationListener.enable();

}@Override

protected void onPause() {

super.onPause();

mSreenOrientationListener.disable();

}

/**

* 屏幕旋转

* */

class SreenOrientationListener extends OrientationEventListener {

public SreenOrientationListener(Context context) {

super(context);

}

@Override

public void onOrientationChanged(int orientation) {

if (orientation == OrientationEventListener.ORIENTATION_UNKNOWN) {

return; // 手机平放时，检测不到有效的角度

}

// 只检测是否有四个角度的改变

if (orientation > 350 || orientation < 10) {

// 0度：手机默认竖屏状态(home键在正下方)

orientation = 0;

setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_REVERSE_LANDSCAPE);

Log.i("orientation","orientation"+orientation);

} else if (orientation > 80 && orientation < 100) {

// 90度：手机顺时针旋转90度横屏(home建在左侧)

setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_REVERSE_LANDSCAPE);

Log.i("orientation","orientation"+orientation);

} else if (orientation > 170 && orientation < 190) {

// 手机顺时针旋转180度竖屏(home键在上方)

orientation = 180;

setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE);

Log.i("orientation","orientation"+orientation);

} else if (orientation > 260 && orientation < 280) {

// 手机顺时针旋转270度横屏，(home键在右侧)

setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE);

Log.i("orientation","orientation"+orientation);

}

}

}

ActivityInfo.SCREEN_ORIENTATION_UNSPECIFIED,

ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE,

ActivityInfo.SCREEN_ORIENTATION_PORTRAIT,

ActivityInfo.SCREEN_ORIENTATION_USER,

ActivityInfo.SCREEN_ORIENTATION_BEHIND,

ActivityInfo.SCREEN_ORIENTATION_SENSOR,

ActivityInfo.SCREEN_ORIENTATION_NOSENSOR,

ActivityInfo.SCREEN_ORIENTATION_SENSOR_LANDSCAPE,

ActivityInfo.SCREEN_ORIENTATION_SENSOR_PORTRAIT,

ActivityInfo.SCREEN_ORIENTATION_REVERSE_LANDSCAPE,

ActivityInfo.SCREEN_ORIENTATION_REVERSE_PORTRAIT,

ActivityInfo.SCREEN_ORIENTATION_FULL_SENSOR,