Android程序锁的实现以及逻辑

class MyAdapter extends BaseAdapter{ private boolean isLock; /** * @param isLock 用于区分已加锁和未加锁应用的标示 true已加锁数据适配器 false未加锁数据适配器 */ public MyAdapter(boolean isLock) { this.isLock = isLock; } @Override public int getCount() { if(isLock){  tv_lock.setText("已加锁应用:"+mLockList.size());  return mLockList.size(); }else{  tv_unlock.setText("未加锁应用:"+mUnLockList.size());  return mUnLockList.size(); } } @Override public AppInfo getItem(int position) { if(isLock){  return mLockList.get(position); }else{  return mUnLockList.get(position); } } @Override public long getItemId(int position) { return position; } @Override public View getView(int position, View convertView, ViewGroup parent) { ViewHolder holder = null; if(convertView == null){  convertView = View.inflate(getApplicationContext(), R.layout.listview_islock_item, null);  holder = new ViewHolder();  holder.iv_icon = (ImageView) convertView.findViewById(R.id.iv_icon);  holder.tv_name = (TextView) convertView.findViewById(R.id.tv_name);  holder.iv_lock = (ImageView) convertView.findViewById(R.id.iv_lock);    convertView.setTag(holder); }else{  holder = (ViewHolder) convertView.getTag(); } final AppInfo appInfo = getItem(position); final View animationView = convertView;  holder.iv_icon.setBackgroundDrawable(appInfo.icon); holder.tv_name.setText(appInfo.name); if(isLock){  holder.iv_lock.setBackgroundResource(R.drawable.lock); }else{  holder.iv_lock.setBackgroundResource(R.drawable.unlock); } holder.iv_lock.setOnClickListener(new OnClickListener() {  @Override  public void onClick(View v) {  //添加动画效果,动画默认是非阻塞的,所以执行动画的同时,动画以下的代码也会执行  animationView.startAnimation(mTranslateAnimation);//500毫秒  //对动画执行过程做事件监听,监听到动画执行完成后,再去移除集合中的数据,操作数据库,刷新界面  mTranslateAnimation.setAnimationListener(new AnimationListener() {   @Override   public void onAnimationStart(Animation animation) {   //动画开始的是调用方法   }   @Override   public void onAnimationRepeat(Animation animation) {   //动画重复时候调用方法   }   //动画执行结束后调用方法   @Override   public void onAnimationEnd(Animation animation) {   if(isLock){    //已加锁------>未加锁过程    //1.已加锁集合删除一个,未加锁集合添加一个,对象就是getItem方法获取的对象    mLockList.remove(appInfo);    mUnLockList.add(appInfo);    //2.从已加锁的数据库中删除一条数据    mDao.delete(appInfo.packageName);    //3.刷新数据适配器    mLockAdapter.notifyDataSetChanged();   }else{    //未加锁------>已加锁过程    //1.已加锁集合添加一个,未加锁集合移除一个,对象就是getItem方法获取的对象    mLockList.add(appInfo);    mUnLockList.remove(appInfo);    //2.从已加锁的数据库中插入一条数据    mDao.insert(appInfo.packageName);    //3.刷新数据适配器    mUnLockAdapter.notifyDataSetChanged();   }   }  });  } }); return convertView; }}

mLockAdapter = new MyAdapter(true);lv_lock.setAdapter(mLockAdapter);  mUnLockAdapter = new MyAdapter(false);lv_unlock.setAdapter(mUnLockAdapter);

holder.iv_lock.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { //添加动画效果,动画默认是非阻塞的,所以执行动画的同时,动画以下的代码也会执行 animationView.startAnimation(mTranslateAnimation);//500毫秒 //对动画执行过程做事件监听,监听到动画执行完成后,再去移除集合中的数据,操作数据库,刷新界面 mTranslateAnimation.setAnimationListener(new AnimationListener() {  @Override  public void onAnimationStart(Animation animation) {  //动画开始的是调用方法  }  @Override  public void onAnimationRepeat(Animation animation) {  //动画重复时候调用方法  }  //动画执行结束后调用方法  @Override  public void onAnimationEnd(Animation animation) {  if(isLock){   //已加锁------>未加锁过程   //1.已加锁集合删除一个,未加锁集合添加一个,对象就是getItem方法获取的对象   mLockList.remove(appInfo);   mUnLockList.add(appInfo);   //2.从已加锁的数据库中删除一条数据   mDao.delete(appInfo.packageName);   //3.刷新数据适配器   mLockAdapter.notifyDataSetChanged();  }else{   //未加锁------>已加锁过程   //1.已加锁集合添加一个,未加锁集合移除一个,对象就是getItem方法获取的对象   mLockList.add(appInfo);   mUnLockList.remove(appInfo);   //2.从已加锁的数据库中插入一条数据   mDao.insert(appInfo.packageName);   //3.刷新数据适配器   mUnLockAdapter.notifyDataSetChanged();  }  } }); }});

public class WatchDogService extends Service { private boolean isWatch; private AppLockDao mDao; private List<String> mPacknameList; private InnerReceiver mInnerReceiver; private String mSkipPackagename; private MyContentObserver mContentObserver; @Override public void onCreate() { //维护一个看门狗的死循环,让其时刻监测现在开启的应用,是否为程序锁中要去拦截的应用 mDao = AppLockDao.getInstance(this); isWatch = true; watch();  IntentFilter intentFilter = new IntentFilter();  intentFilter.addAction("android.intent.action.SKIP");  mInnerReceiver = new InnerReceiver(); registerReceiver(mInnerReceiver, intentFilter);   //注册一个内容观察者,观察数据库的变化,一旦数据有删除或者添加,则需要让mPacknameList重新获取一次数据 mContentObserver = new MyContentObserver(new Handler()); getContentResolver().registerContentObserver(  Uri.parse("content://applock/change"), true, mContentObserver); super.onCreate(); }  class MyContentObserver extends ContentObserver{ public MyContentObserver(Handler handler) {  super(handler); }  //一旦数据库发生改变时候调用方法,重新获取包名所在集合的数据 @Override public void onChange(boolean selfChange) {  new Thread(){  public void run() {   mPacknameList = mDao.findAll();  };  }.start();  super.onChange(selfChange); } }  class InnerReceiver extends BroadcastReceiver{ @Override public void onReceive(Context context, Intent intent) {  //获取发送广播过程中传递过来的包名,跳过次包名检测过程  mSkipPackagename = intent.getStringExtra("packagename"); } }  private void watch() { //1,子线程中,开启一个可控死循环 new Thread(){  public void run() {  mPacknameList = mDao.findAll();  while(isWatch){   //2.监测现在正在开启的应用,任务栈   //3.获取activity管理者对象   ActivityManager am = (ActivityManager) getSystemService(Context.ACTIVITY_SERVICE);   //4.获取正在开启应用的任务栈   List<RunningTaskInfo> runningTasks = am.getRunningTasks(1);   RunningTaskInfo runningTaskInfo = runningTasks.get(0);   //5.获取栈顶的activity,然后在获取此activity所在应用的包名   String packagename = runningTaskInfo.topActivity.getPackageName();      //如果任务栈指向应用有切换,将mSkipPackagename空字符串      //6.拿此包名在已加锁的包名集合中去做比对,如果包含次包名,则需要弹出拦截界面   if(mPacknameList.contains(packagename)){   //如果现在检测的程序,以及解锁了,则不需要去弹出拦截界面   if(!packagename.equals(mSkipPackagename)){    //7,弹出拦截界面    Intent intent = new Intent(getApplicationContext(),EnterPsdActivity.class);    intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);    intent.putExtra("packagename", packagename);    startActivity(intent);   }   }   //睡眠一下,时间片轮转   try {   Thread.sleep(500);   } catch (InterruptedException e) {   e.printStackTrace();   }  }  }; }.start();  } @Override public IBinder onBind(Intent arg0) { return null; } @Override public void onDestroy() { //停止看门狗循环 isWatch = false; //注销广播接受者 if(mInnerReceiver!=null){  unregisterReceiver(mInnerReceiver); } //注销内容观察者 if(mContentObserver!=null){  getContentResolver().unregisterContentObserver(mContentObserver); } super.onDestroy(); }}

public class EnterPsdActivity extends Activity { private String packagename; private TextView tv_app_name; private ImageView iv_app_icon; private EditText et_psd; private Button bt_submit; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); //获取包名 packagename = getIntent().getStringExtra("packagename"); setContentView(R.layout.activity_enter_psd); initUI(); initData(); } private void initData() { //通过传递过来的包名获取拦截应用的图标以及名称 PackageManager pm = getPackageManager(); try {  ApplicationInfo applicationInfo = pm.getApplicationInfo(packagename,0);  Drawable icon = applicationInfo.loadIcon(pm);  iv_app_icon.setBackgroundDrawable(icon);  tv_app_name.setText(applicationInfo.loadLabel(pm).toString()); } catch (NameNotFoundException e) {  e.printStackTrace(); }  bt_submit.setOnClickListener(new OnClickListener() {  @Override  public void onClick(View v) {  String psd = et_psd.getText().toString();  if(!TextUtils.isEmpty(psd)){   if(psd.equals("123")){   //解锁,进入应用,告知看门口不要再去监听以及解锁的应用,发送广播   Intent intent = new Intent("android.intent.action.SKIP");   intent.putExtra("packagename",packagename);   sendBroadcast(intent);      finish();   }else{   ToastUtil.show(getApplicationContext(), "密码错误");   }  }else{   ToastUtil.show(getApplicationContext(), "请输入密码");  }  } }); } private void initUI() { tv_app_name = (TextView) findViewById(R.id.tv_app_name); iv_app_icon = (ImageView) findViewById(R.id.iv_app_icon);  et_psd = (EditText) findViewById(R.id.et_psd); bt_submit = (Button) findViewById(R.id.bt_submit); }  @Override public void onBackPressed() { //通过隐式意图,跳转到桌面 Intent intent = new Intent(Intent.ACTION_MAIN); intent.addCategory(Intent.CATEGORY_HOME); startActivity(intent); super.onBackPressed(); }}

<activity  android:excludeFromRecents="true"  android:name="com.itheima.mobilesafe.EnterPwdActivity"  android:launchMode="singleInstance" />