Android 11强制所有应用横屏展示

1、打开frameworks/base/core/java/android/content/pm/parsing/component/ParsedActivityUtils.java文件，定位到parseActivityOrReceiver方法的int screenOrientation = sa.getInt(R.styleable.AndroidManifestActivity_screenOrientation, SCREEN_ORIENTATION_UNSPECIFIED);这一行，注释掉该行并添加如下代码：

// int screenOrientation = sa.getInt(R.styleable.AndroidManifestActivity_screenOrientation, SCREEN_ORIENTATION_UNSPECIFIED);
// Edit by jgduan
int screenOrientation;
if(pkg.getSharedUserId() == null){
screenOrientation = 0;
} else {
screenOrientation = sa.getInt(R.styleable.AndroidManifestActivity_screenOrientation, SCREEN_ORIENTATION_UNSPECIFIED);
}
// End

2、打开frameworks/base/core/java/android/app/Activity.java文件，对setRequestedOrientation方法进行如下修改：

/**            
 * Change the desired orientation of this activity.  If the activity            
 * is currently in the foreground or otherwise impacting the screen            
 * orientation, the screen will immediately be changed (possibly causing            
 * the activity to be restarted). Otherwise, this will be used the next            
 * time the activity is visible.            
 *            
 * [url=home.php?mod=space&uid=3142012]@param[/url] requestedOrientation An orientation constant as used in            
 * {[url=home.php?mod=space&uid=41289]@Link[/url] ActivityInfo#screenOrientation ActivityInfo.screenOrientation}.            
 */            
public void setRequestedOrientation(@ActivityInfo.ScreenOrientation int requestedOrientation) {            
    if (mParent == null) {            
        try {            
            // Edit by jgduan            
            //ActivityTaskManager.getService().setRequestedOrientation(            
            //        mToken, requestedOrientation);            
            if(mApplication != null && mApplication.getApplicationInfo() != null            
                && mApplication.getApplicationInfo().uid > 10000){            
                ActivityTaskManager.getService().setRequestedOrientation(            
                        mToken, ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE);            
            } else {            
                ActivityTaskManager.getService().setRequestedOrientation(            
                        mToken, requestedOrientation);            
            }            
            // End            
        } catch (RemoteException e) {            
            // Empty            
        }            
    } else {            
        // Edit by jgduan            
        // mParent.setRequestedOrientation(requestedOrientation);            
        if(mApplication != null && mApplication.getApplicationInfo() != null            
                && mApplication.getApplicationInfo().uid > 10000){            
            mParent.setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE);            
        }else{            
            mParent.setRequestedOrientation(requestedOrientation);            
        }            
        // End            
    }            
}

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