是否有可靠的方法可以在所有Android設備上鎖定屏幕方向？以下代碼適用于我的Nexus S和其他手機，但由于某種原因ROTATION_90對應于Xoom上的SCREEN_ORIENTATION_REVERSE_PORTRAIT。有什么方法可以可靠地將旋轉映射到方向？private void lockScreenOrientation() { if (!mScreenOrientationLocked) { final int orientation = getResources().getConfiguration().orientation; final int rotation = getWindowManager().getDefaultDisplay().getOrientation(); if (rotation == Surface.ROTATION_0 || rotation == Surface.ROTATION_90) { if (orientation == Configuration.ORIENTATION_PORTRAIT) { setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT); } else if (orientation == Configuration.ORIENTATION_LANDSCAPE) { setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE); } } else if (rotation == Surface.ROTATION_180 || rotation == Surface.ROTATION_270) { if (orientation == Configuration.ORIENTATION_PORTRAIT) { setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_REVERSE_PORTRAIT); } else if (orientation == Configuration.ORIENTATION_LANDSCAPE) { setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_REVERSE_LANDSCAPE); } } mScreenOrientationLocked = true; }}private void unlockScreenOrientation() { setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_SENSOR); mScreenOrientationLocked = false;}編輯：此代碼旨在獲取當前方向并將其鎖定。方向被暫時鎖定，然后釋放給用戶。
3 回答
陪伴而非守候
TA貢獻1757條經驗 獲得超8個贊
我略微修改了diyism的答案，以彌補在版本2.3之前不能使用reverse_landscape和reverse_portrait模式的事實
private static void disableRotation(Activity activity)
{
final int orientation = activity.getResources().getConfiguration().orientation;
final int rotation = activity.getWindowManager().getDefaultDisplay().getOrientation();
// Copied from Android docs, since we don't have these values in Froyo 2.2
int SCREEN_ORIENTATION_REVERSE_LANDSCAPE = 8;
int SCREEN_ORIENTATION_REVERSE_PORTRAIT = 9;
if (Build.VERSION.SDK_INT <= Build.VERSION_CODES.FROYO)
{
SCREEN_ORIENTATION_REVERSE_LANDSCAPE = ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE;
SCREEN_ORIENTATION_REVERSE_PORTRAIT = ActivityInfo.SCREEN_ORIENTATION_PORTRAIT;
}
if (rotation == Surface.ROTATION_0 || rotation == Surface.ROTATION_90)
{
if (orientation == Configuration.ORIENTATION_PORTRAIT)
{
activity.setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT);
}
else if (orientation == Configuration.ORIENTATION_LANDSCAPE)
{
activity.setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE);
}
}
else if (rotation == Surface.ROTATION_180 || rotation == Surface.ROTATION_270)
{
if (orientation == Configuration.ORIENTATION_PORTRAIT)
{
activity.setRequestedOrientation(SCREEN_ORIENTATION_REVERSE_PORTRAIT);
}
else if (orientation == Configuration.ORIENTATION_LANDSCAPE)
{
activity.setRequestedOrientation(SCREEN_ORIENTATION_REVERSE_LANDSCAPE);
}
}
}
private static void enableRotation(Activity activity)
{
activity.setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_UNSPECIFIED);
}
侃侃爾雅
TA貢獻1801條經驗 獲得超16個贊
要臨時鎖定屏幕，您可以輕松使用：
//developing for android tablets **<uses-sdk android:minSdkVersion="12" />**
//works perfectly... **WATCH OUT**: look portrait to reverse-portrait on api level 13 :)
currentActivity.setRequestedOrientation(currentActivity.getResources().getConfiguration().orientation);
//to re-enable sensor, just do:
currentActivity.setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_SENSOR);
在顯示對話框和進行重要的背景工作期間，將其用于臨時屏幕鎖定。
確保currentActivity在您嘗試訪問它時是有效的，否則它將無法正常工作:)
祝好運 ：）
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