问题描述

程序锁解决重复解锁的问题

我的程序锁老是重复解锁界面，下面是主要代码，请大神帮忙如何解决
根据这个类来检测要运行的程序是否要解锁
public class lockTask extends TimerTask{

private static Context mContext;private ActivityManager activityManager;int i=0;public lockTask(Context context){    mContext=context;    activityManager=(ActivityManager) context.getSystemService(""activity"");}public void run(){    ComponentName topActivity=activityManager.getRunningTasks(1).get(0).topActivity;    String packageName=topActivity.getPackageName();//得到要运行的程序包    boolean result=find(packageName);    if(result){        Intent intent=new Intent();        intent.putExtra(""packageName""packageName);        intent.setClassName(""com.example.competition""com.example.competition.unlock"");        intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);        mContext.startActivity(intent);    }}public boolean find(String packageName){    boolean result=false;    SQLiteDatabase db=PwdDAO.getInstance().getHelper().getWritableDatabase();    if(db.isOpen()){        Cursor cursor=db.rawQuery(""select packageName from tb_pname where packageName=?""new String[]{packageName});        if(cursor.moveToFirst()){            result=true;        }        cursor.close();        db.close();    }    return result;}public static Context getContext(){    return mContext;}

}
这是service类
public class lockService extends Service{
private Timer mtimer;
public static final int FOREGROUND_ID=0;

public IBinder onBind(Intent arg0) {    return null;}private void startTimer(){    if(mtimer==null){        mtimer=new Timer();        lockTask locktask=new lockTask(this);        mtimer.schedule(locktask 0L100L);    }}public void onCreate(){    super.onCreate();}public int  onStartCommand(Intent intentint flagsint startId){    startForeground(FOREGROUND_IDnew Notification());    startTimer();    return super.onStartCommand(intent flags startId);}public void onDestroy(){   //当停止服务时执行    stopForeground(true);    mtimer.cancel();    mtimer.purge();    mtimer=null;    super.onDestroy();}

}
这是解锁的代码
public class unlock extends ActionBarActivity{
String activityName;
SharedPreferences preference;
protected void onCreate(Bundle savedInstanceState){
super.onCreate(savedInstanceState);
final Intent intent=getIntent();//得到传递来的意图对象
String pName=intent.getStringExtra(""packageName"");
setContentView(R.layout.unlock);
preference=getSharedPreferences(""password""Context.MODE_PRIVATE);
final EditText et_unlock=(EditText)findViewById(R.id.et_unlock);//获得输入密码的编辑框
Button but_unlock_ok=(Button)findViewById(R.id.but_unlock_ok);
but_unlock_ok.setOnClickListener(new OnClickListener(){

        public void onClick(View v){            if(TextUtils.isEmpty(et_unlock.getText().toString())){              Toast.makeText(getBaseContext()密码不能为空""Toast.LENGTH_LONG).show();            }            else if(!(et_unlock.getText().toString().equals(preference.getString(""pwd""")))){                Toast.makeText(getBaseContext()密码输入错误""Toast.LENGTH_LONG).show();            }            else{                String packageName=intent.getStringExtra(""packageName"");                Toast.makeText(getBaseContext()包名""+packageNameToast.LENGTH_LONG).show();                PackageManager pm=getPackageManager();                Intent resolveIntent=new Intent(Intent.ACTION_MAIN);                resolveIntent.addCategory(Intent.CATEGORY_LAUNCHER);                List<ResolveInfo> resolve=pm.queryIntentActivities(resolveIntentPackageManager.MATCH_DEFAULT_ONLY);                Collections.sort(resolvenew ResolveInfo.DisplayNameComparator(pm));//将获取到的ResolveInfo进行排序                for(ResolveInfo reInfo:resolve){                    if(reInfo.activityInfo.packageName.equals(packageName.toString())){                        activityName=reInfo.activityInfo.name;//获取应用程序启动activity的名字                    }                }                Intent lanchIntent=new Intent();                lanchIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);                lanchIntent.setComponent(new ComponentName(packageNameactivityName));                startActivity(lanchIntent);            }                   }    });}

}

解决方案

mtimer.schedule(locktask 0L100L); 这行代码不是每个100ms就执行一次 locktask吗？？

解决方案二：
你这样一直运行，不是死循环吗？ 无限检查，无限弹界面； 你打印 packageName 看看是什么？