android 5 设置图案锁，锁屏界面进入相机拍照、查看锁定的照片后，退出锁屏界面再进入相机，不能正常拍照，界面白屏。

来源：互联网发布：中科院过程工程所知乎编辑：程序博客网时间：2024/06/02 14:53

将文件alps/frameworks/base/packages/SystemUI/src/com/android/systemui/statusbar/phone/KeyguardBottomAreaView.java内的函数launchCamera()作如下修改：

if (intent == SECURE_CAMERA_INTENT && !wouldLaunchResolverActivity) {
if (DEBUG) Log.d(TAG, "launchCamera() - launch SECURE_CAMERA_INTENT") ;

mContext.startActivityAsUser(intent, UserHandle.CURRENT);
} else {

修改为

if (intent == SECURE_CAMERA_INTENT && !wouldLaunchResolverActivity) {
if (DEBUG) Log.d(TAG, "launchCamera() - launch SECURE_CAMERA_INTENT") ;
///M: [ALPS01844520] Insecure Camera may be resumed if no CLEAR_TOP attribute.
intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TOP);//Add by mtk
mContext.startActivityAsUser(intent, UserHandle.CURRENT);
} else {

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