android锁屏软件制作

转载请标明出处http://blog.csdn.net/mingyue_1128

一、首先要创建一个Service保证Service一直开启，同时不被一键清理掉。

二、屏蔽掉系统的锁屏

三、创建锁屏的Activity，在Activity中屏蔽掉back,menu,home键

四、保证自己的进程不在最近任务中出现

一、创建一个Service名字为LockService

public class LockService extends Service{private KeyguardManager km;private KeyguardLock kk;private BroadcastReceiver broadcastReceiver=new BroadcastReceiver() {@Overridepublic void onReceive(Context context, Intent arg1) {Log.e("-----可以跳到锁屏界面--------", "---------");Intent intent=new Intent(context,LockActivity.class);intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);startActivity(intent);}};@Overridepublic IBinder onBind(Intent arg0) {return null;}@Overridepublic void onStart(Intent intent, int startId) {super.onStart(intent, startId);//服务里面收到关闭屏幕的动作就发送广播IntentFilter iFilter=new IntentFilter(Intent.ACTION_SCREEN_OFF);this.registerReceiver(broadcastReceiver, iFilter);}@Overridepublic void onCreate() {super.onCreate();//屏蔽掉系统的锁屏km=(KeyguardManager) getSystemService(Context.KEYGUARD_SERVICE);kk=km.newKeyguardLock("");kk.disableKeyguard();}@Overridepublic void onDestroy() {super.onDestroy();}}

在Service中与他合作的还有一个广播，当监听到屏幕关的时候，service就会发送广播，使屏幕开的时候为自己锁屏界面

三、锁屏界面中屏蔽掉menu,home,back

public class LockActivity extends Activity{private  static final int FLAG_HOMEKEY_DISPATCHED = 0x80000000;private Button btn_open;@Overrideprotected void onCreate(Bundle savedInstanceState) {// TODO Auto-generated method stubsuper.onCreate(savedInstanceState);this.getWindow().setFlags(FLAG_HOMEKEY_DISPATCHED, FLAG_HOMEKEY_DISPATCHED);//关键代码 setContentView(R.layout.activity_main);//解锁的按钮btn_open=(Button) findViewById(R.id.open);btn_open.setOnClickListener(new OnClickListener() {@Overridepublic void onClick(View arg0) {finish();}});}@SuppressWarnings("static-access")@Overridepublic boolean onKeyDown(int keyCode, KeyEvent event) {if(keyCode==event.KEYCODE_BACK){return true;}if(keyCode==event. KEYCODE_HOME){return true;}if(keyCode == KeyEvent.KEYCODE_MENU) {//MENU键        //监控/拦截菜单键         return true;    }     return super.onKeyDown(keyCode, event);}}

保证自己的锁屏程序不在最近进程中出现，只需要在注册锁屏界面的Activity时，添加一个属性android:excludeFromRecents="true"，如下

       <activity            android:name="com.mm.wallpaper.LockActivity"           android:launchMode="singleInstance"           android:excludeFromRecents="true"><intent-filter>                <category android:name="android.intent.category.LAUNCHER" />                <category android:name="android.intent.category.DEFAULT" />            </intent-filter>       </activity>

四、我们需要看一下主界面怎么处理

public class MainActivity extends Activity {MyBroadcast receiveBroadCast;@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);//注册广播receiveBroadCast = new MyBroadcast();IntentFilter filter = new IntentFilter();filter.addAction("action"); // 只有持有相同的action的接受者才能接收此广播registerReceiver(receiveBroadCast, filter);//发送广播Intent intent=new Intent();intent.setAction("action");this.sendBroadcast(intent);}public class MyBroadcast extends BroadcastReceiver{@Overridepublic void onReceive(Context context, Intent intent) {KeyguardManager km = (KeyguardManager)context.getSystemService(Context.KEYGUARD_SERVICE);KeyguardLock kk = km.newKeyguardLock("");kk.disableKeyguard();//开始服务Intent service=new Intent();service.setClass(context,LockService.class);//稍后再定义context.startService(service);}}@Overrideprotected void onDestroy() {// TODO Auto-generated method stubsuper.onDestroy();unregisterReceiver(receiveBroadCast);}}

在这里我们需要注册一个广播保证服务的开启

在配置清单中MainActivity需要多一个属性来保证程序始终在

   <category android:name="android.intent.category.HOME"/>

整个的流程大概如此，希望对想做解锁软件的朋友有所帮助。