如何在Android中设置密码时在锁屏上显示活动

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

KeyguardManager keyguardManager = (KeyguardManager) getSystemService(Context.KEYGUARD_SERVICE);
KeyguardManager.KeyguardLock lock = keyguardManager.newKeyguardLock(Context.KEYGUARD_SERVICE);
lock.disableKeyguard();

public class UnlockReceiver extends BroadcastReceiver {
    @Override
    public void onReceive(Context context, Intent intent) {
        if (intent.getAction().equals(Intent.ACTION_USER_PRESENT)) {
            // 在此处启动特定的Activity
            Intent newIntent = new Intent(context, YourActivity.class);
            newIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
            context.startActivity(newIntent);
        }
    }
}

<receiver android:name=".UnlockReceiver">
    <intent-filter>
        <action android:name="android.intent.action.USER_PRESENT"/>
    </intent-filter>
</receiver>