即使屏幕在 Android 中被锁定，也可以启动活动屏幕 [英] Start Activity screen even if screen is locked in Android

问题描述

即使屏幕被锁定，如何在设备上启动 Activity.我试过如下，但它不起作用.

How to start an Activity on device even if screen is locked. I tried as below but it's not working.

广播接收器:

Intent alarmIntent = new Intent("android.intent.action.MAIN");
        alarmIntent.setClass(context, Alarm.class);
        alarmIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
        alarmIntent.addFlags(WindowManager.LayoutParams.FLAG_SHOW_WHEN_LOCKED +
                             WindowManager.LayoutParams.FLAG_DISMISS_KEYGUARD +
                             WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON +
                             WindowManager.LayoutParams.FLAG_TURN_SCREEN_ON);
        context.startActivity(alarmIntent);

推荐答案

AndroidManifest.xml 文件中需要以下权限:

You need the following permission in AndroidManifest.xml file:

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

在此处查看清单详情.您可以查看此 link 关于您的查询.

Check the manifest details here. You can check this link on you query.

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