擒猿小舖

取得目前螢幕是橫式或是直式：

public int getScreenOrientation()
{
Display getOrient = getWindowManager().getDefaultDisplay();
int orientation = Configuration.ORIENTATION_UNDEFINED;
if(getOrient.getWidth()==getOrient.getHeight()){
orientation = Configuration.ORIENTATION_SQUARE;
} else{
if(getOrient.getWidth() < getOrient.getHeight()){
orientation = Configuration.ORIENTATION_PORTRAIT;
}else {
orientation = Configuration.ORIENTATION_LANDSCAPE;
}
}
return orientation;
}

程式中強制設定螢幕為橫式或是直式：

setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE);

setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT);

避免螢幕旋轉導致 onCreate 重啟：

<uses-permission android:name="android.permission.CHANGE_CONFIGURATION" />

<activityandroid:name=".MyActivity"
android:configChanges="orientation|keyboardHidden|screenSize"
android:label="@string/app_name">