申请强制关闭100个+短信

Question

可能重复：
Android application force close

还在我的文字炸弹应用程序的工作，我做了一些改进，所以它不能被阻塞简单的短信拦截器，并有验证，所以用户必须输入正确的信息或不会发送/强制关闭。但现在我试图找出为什么它是强制关闭与大量的短信试图发送。

这里是我的代码：

import java.util.Random; 
import android.app.Activity; 
import android.content.Context; 
import android.os.Bundle; 
import android.telephony.SmsManager; 
import android.view.View; 
import android.view.inputmethod.InputMethodManager; 
import android.widget.Button; 
import android.widget.EditText; 
import android.widget.Toast; 

public class MainActivity extends Activity { 
EditText PhNumber, Message, TxtCount; 
Button btnSendSMS; 

/** Called when the activity is first created. */ 
@Override 
public void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.main);   

    //create text box to enter phone number 
    PhNumber=(EditText) findViewById(R.id.PhNumber); 

    //create text box to enter message 
    Message=(EditText) findViewById(R.id.Message); 

    //create text box to see how many times the user wants to send message 
    TxtCount=(EditText) findViewById(R.id.TxtCount); 

    //create button to send text message 
    btnSendSMS = (Button) findViewById(R.id.btnSendSMS); 

    //create listener for button 
    btnSendSMS.setOnClickListener(new View.OnClickListener() 

    {    
     public void onClick(View v) 
      {   
       //variable for count. 
       int count = 1; 
       //variable for text message 
       String msg = Message.getText().toString(); 
       //create string array of the alphabet 
       String[] mArray = {"a", "b", "c", "d", "e", "f", "g", "h", "i", "j", "k", "l", "m", 
         "n", "o", "p", "q", "r", "s", "t", "u", "v", "w", "r", "x", "y", "z"}; 
       //create variable to hold random number 
       final Random r = new Random(); 
       //variable for phone number 
       String num = PhNumber.getText().toString(); 
       //create array of the phone number to get the number of numbers entered. 
       char[] nArray = num.toCharArray(); 
       //variable for the amount of text messages to send. 
       String max1 = TxtCount.getText().toString(); 
       //variable to watch button and hide keyboard 
       InputMethodManager mgr = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE); 
       //test to see if number has a value 
       if (num.equals("") || (nArray.length < 10)) 
       { 
        Toast.makeText(getApplicationContext(), "Enter a 10 digit phone number to nuke!", Toast.LENGTH_SHORT).show(); 
        return; 
       } 
       //test to see if msg has a value 
       if (msg.equals("")) 
       { 
        Toast.makeText(getApplicationContext(), "Enter a message!", Toast.LENGTH_SHORT).show(); 
        return; 
       }   
       //test to see if there's a number of times to text 
       if (max1.equals("") || (Integer.parseInt(TxtCount.getText().toString()) <= 0)) 
       { 
        Toast.makeText(getApplicationContext(), "Enter a number more than zero to nuke!", Toast.LENGTH_SHORT).show(); 
        return; 
       }    

       //if all fields have valid data -- send text message until count = max 
       int max = Integer.parseInt(TxtCount.getText().toString()); 
       while (count <= max) { 
        //create variable to hold random letter of the alphabet 
        String rLetter = mArray[r.nextInt(27)]; 
        String rLetter2 =mArray[r.nextInt(27)]; 
        final Random i = new Random(); 
        sendSMS(num, (rLetter + i.nextInt(100) + rLetter2 + " " + msg + " " + rLetter + i.nextInt(100) +rLetter2)); 
        count++; 
       }; 
       //hide the keyboard 
       mgr.hideSoftInputFromWindow(TxtCount.getWindowToken(), 0); 
       mgr.hideSoftInputFromWindow(PhNumber.getWindowToken(), 0); 
       mgr.hideSoftInputFromWindow(Message.getWindowToken(), 0); 
       //set phone number to "" 
       PhNumber.setText(""); 
       //set message to "" 
       Message.setText(""); 
       //set count to "" 
       TxtCount.setText(""); 
       //refocus on phone number 
       PhNumber.requestFocus();      
      }   
    });   
} 
//sends a sms message to another device 
private void sendSMS(String phoneNumber, String message) 
    {  
     SmsManager sms = SmsManager.getDefault(); 
     sms.sendTextMessage(phoneNumber, null, message, null, null); 
    } 
} 

Answer 1

你正在尝试做的UI线程上的时间密集型操作。在后台线程中运行while循环。 http://www.vogella.de/articles/AndroidPerformance/article.html#concurrency_asynchtask