如何显示弹出活动或对话框时,手机被锁定?

你应该使用 KeyGuardManager 自动解锁设备,然后获取唤醒锁定。

    KeyguardManager kgm = (KeyguardManager)getSystemService(Context.KEYGUARD_SERVICE);
    boolean isKeyguardUp = kgm.inKeyguardRestrictedInputMode();
    KeyguardLock kgl = kgm.newKeyguardLock("Your Activity/Service name");

    if(isKeyguardUp){
    kgl.disableKeyguard();
    isKeyguardUp = false;
    }

    wl.acquire(); //use your wake lock once keyguard is down.

要在不关闭键盘的情况下显示活动,请尝试以下操作:

getWindow().addFlags(WindowManager.LayoutParams.FLAG_TURN_SCREEN_ON);
getWindow().addFlags(WindowManager.LayoutParams.FLAG_SHOW_WHEN_LOCKED);
getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
setContentView();

answer :

AlertDialog alertDialog = new AlertDialog.Builder(context).create();
        alertDialog.getWindow().setType(WindowManager.LayoutParams.FLAG_SHOW_WHEN_LOCKED);
        alertDialog.show();

要在锁屏上显示活动,或在活动开始时基本上移除锁屏,请尝试以下操作:

public void onCreate(Bundle savedInstanceState){
     getWindow().addFlags(WindowManager.LayoutParams.FLAG_DISMISS_KEYGUARD);
     ...
}