Android开发：锁屏状态下弹出Activity

在接收消息广播的onReceive里，跳转到你要显示的界面。如：

Intent intent = new Intent(arg0,MainActivity.class);

intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);       

arg0.startActivity(intent);

在该activity的onCreate()方法里：

super.onCreate(savedInstanceState);

getWindow().addFlags(WindowManager.LayoutParams.FLAG_SHOW_WHEN_LOCKED|WindowManager.LayoutParams.FLAG_TURN_SCREEN_ON);

setContentView(R.layout.activity_main);

设置activity的theme属性：

android:theme="@android:style/Theme.Wallpaper.NoTitleBar"

//突破锁屏的代码


KeyguardManager keyguardManager = (KeyguardManager) getSystemService(KEYGUARD_SERVICE);

KeyguardLock keyguardLock = keyguardManager.newKeyguardLock("");

keyguardLock.disableKeyguard();