EditText mise à jour SeekBar se bloque

Question

J'ai 2 problèmes. 1: donc j'ai cet edittext, chaque fois que je supprime un nombre, le pointeur va au premier nombre. comment puis-je le changer? 2: lorsque je supprime tous les numéros de mon Edittext, l'application se bloque. J'ai vu le LogCat et ajouté l'exception .. mais je ne sais pas comment l'empêcher de se bloquer. A l'avance.

activty

public SeekBar FlatPrice = null; 

@Override 
protected void onCreate(Bundle savedInstanceState) { 
    // TODO Auto-generated method stub 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.publishflat); 
    getActionBar().setDisplayHomeAsUpEnabled(true); 

    final EditText flatPriceET = (EditText) findViewById(R.id.editText1); 
    flatPriceET.addTextChangedListener(new TextWatcher() { 
     @Override 
    public void onTextChanged(CharSequence s, int start, int before, 
      int count) { 
     // TODO Auto-generated method stub 
    } 

    @Override 
    public void beforeTextChanged(CharSequence s, int start, int count, 
      int after) { 
     // TODO Auto-generated method stub 
    } 

    @Override 
    public void afterTextChanged(Editable s) { 
     Integer i = Integer.parseInt(s.toString()); 
if (i!= null){ 
     if (i >= 0 && i <= 10070) { 
      try { 
       FlatPrice.setProgress(i); 
      } catch (NumberFormatException e) { 
       Toast.makeText(getApplicationContext(), 
         "write your number", Toast.LENGTH_LONG).show(); 
      } 

     } 
    } 
    } 
}); 

// seekBar functionality 
FlatPrice = (SeekBar) findViewById(R.id.seekBar1); 
FlatPrice.setOnSeekBarChangeListener(new OnSeekBarChangeListener() { 
    @Override 
    public void onStopTrackingTouch(SeekBar seekBar) { 
     // TODO Auto-generated method stub 
    } 

    @Override 
    public void onStartTrackingTouch(SeekBar seekBar) { 
     // TODO Auto-generated method stub 
    } 

    @Override 
    public void onProgressChanged(SeekBar seekBar, int progress, 
      boolean fromUser) { 
     // TODO Auto-generated method stub 
      flatPriceET.setText("" + String.valueOf(progress)); 

     } 
    }); 
    // end of seekBar Listener 
} 

LogCat:

06-10 18:59:38.986: E/AndroidRuntime(13390): FATAL EXCEPTION: main 
06-10 18:59:38.986: E/AndroidRuntime(13390): java.lang.NumberFormatException: Invalid int: "" 
06-10 18:59:38.986: E/AndroidRuntime(13390): at java.lang.Integer.invalidInt(Integer.java:138) 
06-10 18:59:38.986: E/AndroidRuntime(13390): at java.lang.Integer.parseInt(Integer.java:359) 
06-10 18:59:38.986: E/AndroidRuntime(13390): at java.lang.Integer.parseInt(Integer.java:332) 
06-10 18:59:38.986: E/AndroidRuntime(13390): at nir.rauch.flantirflats.PublishYourFLat$1.afterTextChanged(PublishYourFLat.java:40) 
06-10 18:59:38.986: E/AndroidRuntime(13390): at android.widget.TextView.sendAfterTextChanged(TextView.java:8503) 
06-10 18:59:38.986: E/AndroidRuntime(13390): at android.widget.TextView$ChangeWatcher.afterTextChanged(TextView.java:10633) 
06-10 18:59:38.986: E/AndroidRuntime(13390): at android.text.SpannableStringBuilder.sendAfterTextChanged(SpannableStringBuilder.java:970) 
06-10 18:59:38.986: E/AndroidRuntime(13390): at android.text.SpannableStringBuilder.replace(SpannableStringBuilder.java:497) 
06-10 18:59:38.986: E/AndroidRuntime(13390): at android.text.SpannableStringBuilder.delete(SpannableStringBuilder.java:212) 
06-10 18:59:38.986: E/AndroidRuntime(13390): at android.text.SpannableStringBuilder.delete(SpannableStringBuilder.java:30) 
06-10 18:59:38.986: E/AndroidRuntime(13390): at android.text.method.BaseKeyListener.backspaceOrForwardDelete(BaseKeyListener.java:94) 
06-10 18:59:38.986: E/AndroidRuntime(13390): at android.text.method.BaseKeyListener.backspace(BaseKeyListener.java:49) 
06-10 18:59:38.986: E/AndroidRuntime(13390): at android.text.method.BaseKeyListener.onKeyDown(BaseKeyListener.java:155) 
06-10 18:59:38.986: E/AndroidRuntime(13390): at android.text.method.NumberKeyListener.onKeyDown(NumberKeyListener.java:138) 
06-10 18:59:38.986: E/AndroidRuntime(13390): at android.widget.TextView.doKeyDown(TextView.java:6470) 
06-10 18:59:38.986: E/AndroidRuntime(13390): at android.widget.TextView.onKeyDown(TextView.java:6267) 
06-10 18:59:38.986: E/AndroidRuntime(13390): at android.view.KeyEvent.dispatch(KeyEvent.java:2891) 
06-10 18:59:38.986: E/AndroidRuntime(13390): at android.view.View.dispatchKeyEvent(View.java:7677) 
06-10 18:59:38.986: E/AndroidRuntime(13390): at android.view.ViewGroup.dispatchKeyEvent(ViewGroup.java:1485) 
06-10 18:59:38.986: E/AndroidRuntime(13390): at android.view.ViewGroup.dispatchKeyEvent(ViewGroup.java:1485) 
06-10 18:59:38.986: E/AndroidRuntime(13390): at android.view.ViewGroup.dispatchKeyEvent(ViewGroup.java:1485) 
06-10 18:59:38.986: E/AndroidRuntime(13390): at android.view.ViewGroup.dispatchKeyEvent(ViewGroup.java:1485) 
06-10 18:59:38.986: E/AndroidRuntime(13390): at com.android.internal.policy.impl.PhoneWindow$DecorView.superDispatchKeyEvent(PhoneWindow.java:2293) 
06-10 18:59:38.986: E/AndroidRuntime(13390): at com.android.internal.policy.impl.PhoneWindow.superDispatchKeyEvent(PhoneWindow.java:1602) 
06-10 18:59:38.986: E/AndroidRuntime(13390): at android.app.Activity.dispatchKeyEvent(Activity.java:2451) 
06-10 18:59:38.986: E/AndroidRuntime(13390): at com.android.internal.policy.impl.PhoneWindow$DecorView.dispatchKeyEvent(PhoneWindow.java:2211) 
06-10 18:59:38.986: E/AndroidRuntime(13390): at android.view.ViewRootImpl$ViewPostImeInputStage.processKeyEvent(ViewRootImpl.java:4562) 
06-10 18:59:38.986: E/AndroidRuntime(13390): at android.view.ViewRootImpl$ViewPostImeInputStage.onProcess(ViewRootImpl.java:4538) 
06-10 18:59:38.986: E/AndroidRuntime(13390): at android.view.ViewRootImpl$InputStage.deliver(ViewRootImpl.java:4143) 
06-10 18:59:38.986: E/AndroidRuntime(13390): at android.view.ViewRootImpl$InputStage.onDeliverToNext(ViewRootImpl.java:4193) 
06-10 18:59:38.986: E/AndroidRuntime(13390): at android.view.ViewRootImpl$InputStage.forward(ViewRootImpl.java:4162) 
06-10 18:59:38.986: E/AndroidRuntime(13390): at android.view.ViewRootImpl$AsyncInputStage.forward(ViewRootImpl.java:4247) 
06-10 18:59:38.986: E/AndroidRuntime(13390): at android.view.ViewRootImpl$InputStage.apply(ViewRootImpl.java:4170) 
06-10 18:59:38.986: E/AndroidRuntime(13390): at android.view.ViewRootImpl$AsyncInputStage.apply(ViewRootImpl.java:4304) 
06-10 18:59:38.986: E/AndroidRuntime(13390): at android.view.ViewRootImpl$InputStage.deliver(ViewRootImpl.java:4143) 
06-10 18:59:38.986: E/AndroidRuntime(13390): at android.view.ViewRootImpl$InputStage.onDeliverToNext(ViewRootImpl.java:4193) 
06-10 18:59:38.986: E/AndroidRuntime(13390): at android.view.ViewRootImpl$InputStage.forward(ViewRootImpl.java:4162) 
06-10 18:59:38.986: E/AndroidRuntime(13390): at android.view.ViewRootImpl$InputStage.apply(ViewRootImpl.java:4170) 
06-10 18:59:38.986: E/AndroidRuntime(13390): at android.view.ViewRootImpl$InputStage.deliver(ViewRootImpl.java:4143) 
06-10 18:59:38.986: E/AndroidRuntime(13390): at android.view.ViewRootImpl.deliverInputEvent(ViewRootImpl.java:6288) 
06-10 18:59:38.986: E/AndroidRuntime(13390): at android.view.ViewRootImpl.doProcessInputEvents(ViewRootImpl.java:6226) 
06-10 18:59:38.986: E/AndroidRuntime(13390): at android.view.ViewRootImpl.enqueueInputEvent(ViewRootImpl.java:6197) 
06-10 18:59:38.986: E/AndroidRuntime(13390): at android.view.ViewRootImpl.enqueueInputEvent(ViewRootImpl.java:6162) 
06-10 18:59:38.986: E/AndroidRuntime(13390): at android.view.ViewRootImpl$ViewRootHandler.handleMessage(ViewRootImpl.java:3744) 
06-10 18:59:38.986: E/AndroidRuntime(13390): at android.os.Handler.dispatchMessage(Handler.java:99) 
06-10 18:59:38.986: E/AndroidRuntime(13390): at android.os.Looper.loop(Looper.java:137) 
06-10 18:59:38.986: E/AndroidRuntime(13390): at android.app.ActivityThread.main(ActivityThread.java:5419) 
06-10 18:59:38.986: E/AndroidRuntime(13390): at java.lang.reflect.Method.invokeNative(Native Method) 
06-10 18:59:38.986: E/AndroidRuntime(13390): at java.lang.reflect.Method.invoke(Method.java:525) 
06-10 18:59:38.986: E/AndroidRuntime(13390): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1187) 
06-10 18:59:38.986: E/AndroidRuntime(13390): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1003) 
06-10 18:59:38.986: E/AndroidRuntime(13390): at dalvik.system.NativeStart.main(Native Method) 

Answer 1

Try this ..

Lors de la suppression des numéros enfin afterTextChanged recevra vide comme "" afin que NumberFormatException essayer de vérifier avec condition comme ci-dessous

@Override 
public void afterTextChanged(Editable s) { 

if(!s.toString().trim().equals("")){ 
    Integer i = Integer.parseInt(s.toString()); 
if (i!= null){ 
    if (i >= 0 && i <= 10070) { 
     try { 
      FlatPrice.setProgress(i); 
     } catch (NumberFormatException e) { 
      Toast.makeText(getApplicationContext(), 
        "write your number", Toast.LENGTH_LONG).show(); 
     } 

    } 
} 
}else{ 
    FlatPrice.setProgress(0); 
} 
}