setcontentview plante l'application après avoir essayé de créer un nouvel EditText

Question

J'essaie d'écrire une application de gestion de notes, quand j'ajoute quelques nouvelles notes, les supprime et essaye alors d'ajouter une nouvelle note l'application plantage sur setcontentview(). J'ai ajouté le journal, il peut être déclenché facilement en supprimant le premier editText, puis en en ajoutant un nouveau.

public class Mainpage extends AppCompatActivity { 

private LinearLayout MyLayout; 
private ScrollView sv; 
private List<EditText> et = new ArrayList<EditText>(); 
private List<EditText> ct = new ArrayList<EditText>(); 
private List<TextView> tv = new ArrayList<TextView>(); 
private List<CheckBox> cb = new ArrayList<CheckBox>(); 
private Button btn; 
final Context context = this; 
private CountDownTimer timer; 
boolean isWaiting; 
int last_added; 

@Override 
protected void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 

    setContentView(R.layout.activity_mainpage); 
    last_added = 0; 
    //btn = (Button) findViewById(R.id.btn); 
    //btn.setVisibility(View.INVISIBLE); 


} 

@Override 
public boolean onCreateOptionsMenu(Menu menu) { 
    // Inflate the menu; this adds items to the action bar if it is present. 
    getMenuInflater().inflate(R.menu.menu_mainpage, menu); 
    sv = new ScrollView(this); 
    MyLayout = new LinearLayout(this); 
    MyLayout.setOrientation(LinearLayout.VERTICAL); 
    sv.addView(MyLayout); 
    timer = new CountDownTimer(500,500) { 
     @Override 
     public void onTick(long millisUntilFinished) { 
     } 
     @Override 
     public void onFinish() { 
      isWaiting = false; 
     } 
    }; 
    btn = new Button(this); 
    btn.setText("Accept"); 
    btn.setVisibility(View.INVISIBLE); 
    MyLayout.addView(btn); 
    return true; 
} 

@Override 
public boolean onOptionsItemSelected(MenuItem item) { 
    // Handle action bar item clicks here. The action bar will 
    // automatically handle clicks on the Home/Up button, so long 
    // as you specify a parent activity in AndroidManifest.xml. 
    int id = item.getItemId(); 


    //noinspection SimplifiableIfStatement 
    if (id == R.id.action_settings) { 
     return true; 
    } 
    else if (id == R.id.action_add) { 


     et.add(new EditText(this)) ; 
     tv.add(new TextView(this)); 
     ct.add(new EditText(this)); 
     cb.add(new CheckBox(this)); 
     cb.get(ct.size() -1).setVisibility(View.INVISIBLE); 
     ct.get(ct.size() -1).setVisibility(View.INVISIBLE); 
     Calendar cal = Calendar.getInstance(); 
     String date = new SimpleDateFormat("dd-MM-yyyy").format(new Date()); 
     tv.get(tv.size() -1).setText("created on" + date); 
     et.get(et.size() - 1).setText("weeeeeeeeeee~!"); 

     MyLayout.addView(et.get(et.size() - 1)); 
     MyLayout.addView(ct.get(ct.size() -1)); 
     MyLayout.addView(tv.get(tv.size() - 1)); 
     MyLayout.addView(cb.get(cb.size() - 1)); 

     this.setContentView(sv); 


     et.get(last_added).setOnClickListener(new View.OnClickListener() { 
     @Override 
     public void onClick(View v) { 
      for(int i=0;i<et.size();i++) 
      { 
       if(et.get(i) == v) 
       { 
        last_added = i + 1; 
        break; 
       } 
      } 

      if(isWaiting) { 
       isWaiting = false; 
       timer.cancel(); 
       // TODO: open a new EditText 
       if(ct.get(last_added -1).isShown()) 
       { 
        ct.get(last_added -1).setVisibility(View.INVISIBLE); 
       } 
       else 

       { 
        ct.get(last_added -1).setVisibility(View.VISIBLE); 
       } 


       } 
      else { 
         isWaiting = true; 
         timer.start(); 
        } 
       } 
      }); 
     last_added++; 
     return true; 
    } 

    else if (id == R.id.action_delete) { 
     btn.setVisibility(View.VISIBLE); 
     for (int i = 0; i < cb.size(); i++) { 
      cb.get(i).setVisibility(View.VISIBLE); 
     } 
     btn.setOnClickListener(new View.OnClickListener() { 
      @Override 
      public void onClick(View v) { 
       for(int j=0; j < cb.size();j++) 
       { 
        if(cb.get(j).isChecked()) 
        { 
         et.get(j).setVisibility(View.GONE); 
         tv.get(j).setVisibility(View.GONE); 
         ct.get(j).setVisibility(View.GONE); 
         cb.get(j).setVisibility(View.GONE); 
         et.remove(j); 
         tv.remove(j); 
         ct.remove(j); 
         cb.remove(j); 
        } 
       } 
       btn.setVisibility(View.INVISIBLE); 
       for (int i = 0; i < cb.size(); i++) { 
        cb.get(i).setVisibility(View.INVISIBLE); 
       } 
      } 
     }); 

     this.setContentView(sv); 

     return true; 
    } 
    else if (id == R.id.action_search) { 
     return true; 
    } 
    else if (id == R.id.action_send) { 
     return true; 
    } 
    return super.onOptionsItemSelected(item); 
} 

} 

journal

10-16 11:10:34.203 13030-13030/com.example.user_pc.notes E/AndroidRuntime﹕ FATAL EXCEPTION: main 
Process: com.example.user_pc.notes, PID: 13030 
java.lang.IndexOutOfBoundsException: Invalid index 1, size is 1 
     at java.util.ArrayList.throwIndexOutOfBoundsException(ArrayList.java:255) 
     at java.util.ArrayList.get(ArrayList.java:308) 
     at com.example.user_pc.notes.Mainpage.onOptionsItemSelected(Mainpage.java:125) 
     at android.app.Activity.onMenuItemSelected(Activity.java:2908) 
     at android.support.v4.app.FragmentActivity.onMenuItemSelected(FragmentActivity.java:325) 
     at android.support.v7.app.AppCompatActivity.onMenuItemSelected(AppCompatActivity.java:147) 
     at android.support.v7.internal.view.WindowCallbackWrapper.onMenuItemSelected(WindowCallbackWrapper.java:100) 
     at android.support.v7.app.AppCompatDelegateImplV7.onMenuItemSelected(AppCompatDelegateImplV7.java:609) 
     at android.support.v7.internal.view.menu.MenuBuilder.dispatchMenuItemSelected(MenuBuilder.java:811) 
     at android.support.v7.internal.view.menu.MenuItemImpl.invoke(MenuItemImpl.java:153) 
     at android.support.v7.internal.view.menu.MenuBuilder.performItemAction(MenuBuilder.java:958) 
     at android.support.v7.internal.view.menu.MenuBuilder.performItemAction(MenuBuilder.java:948) 
     at android.support.v7.widget.ActionMenuView.invokeItem(ActionMenuView.java:619) 
     at android.support.v7.internal.view.menu.ActionMenuItemView.onClick(ActionMenuItemView.java:139) 
     at android.view.View.performClick(View.java:5198) 
     at android.view.View$PerformClick.run(View.java:21147) 
     at android.os.Handler.handleCallback(Handler.java:739) 
     at android.os.Handler.dispatchMessage(Handler.java:95) 
     at android.os.Looper.loop(Looper.java:148) 
     at android.app.ActivityThread.main(ActivityThread.java:5417) 
     at java.lang.reflect.Method.invoke(Native Method) 
     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726) 
     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616) 

Answer 1

1) Votre erreur erreur montre que vous avez 125 IndexOutOfBoundsException exeption.

at com.example.user_pc.notes.Mainpage.onOptionsItemSelected(Mainpage.java:125) 

Vous appelez get fonctions sur l'un de vos tableaux. Il y a un article dans la liste. Là pour maxumum index doit être 0 mais vous appelez 1 il renvoie IndexOutOfBoundsException.

java.lang.IndexOutOfBoundsException: Invalid index 1, size is 1 

2) Vous n'avez pas besoin de créer arraylist additonal que le vôtre

private List<EditText> et = new ArrayList<EditText>(); 

LinearLayout a des méthodes suivantes. Et vous pouvez les obtenir à partir de votre mise en page.

getChildAt()); 
    getChildCount(); 

3) Vous n'avez pas besoin d'appeler la méthode suivante sur ScrollView. Il doit automatiquement

this.setContentView(sv); 

4) Et enfin votre code très brisé. Essayez d'utiliser la méthode standart. Lire le tutoriel android https://developer.android.com/guide/topics/ui/index.html

Answer 2

l'a corrigé. Le dernier ajout était trop élevé lorsque j'ai essayé d'ajouter un nouvel EditText.

Mainpage public class étend AppCompatActivity {

private LinearLayout MyLayout; 
private ScrollView sv; 
private List<EditText> et = new ArrayList<EditText>(); 
private List<EditText> ct = new ArrayList<EditText>(); 
private List<TextView> tv = new ArrayList<TextView>(); 
private List<CheckBox> cb = new ArrayList<CheckBox>(); 


private Button btn; 
final Context context = this; 
private CountDownTimer timer; 
boolean isWaiting; 
int last_added; 
int num_removed; 
@Override 
protected void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 

    setContentView(R.layout.activity_mainpage); 
    last_added = 0; 
    //btn = (Button) findViewById(R.id.btn); 
    //btn.setVisibility(View.INVISIBLE); 


} 

@Override 
public boolean onCreateOptionsMenu(Menu menu) { 
    // Inflate the menu; this adds items to the action bar if it is present. 
    getMenuInflater().inflate(R.menu.menu_mainpage, menu); 
    sv = new ScrollView(this); 
    MyLayout = new LinearLayout(this); 
    MyLayout.setOrientation(LinearLayout.VERTICAL); 
    sv.addView(MyLayout); 
    timer = new CountDownTimer(500,500) { 
     @Override 
     public void onTick(long millisUntilFinished) { 
     } 
     @Override 
     public void onFinish() { 
      isWaiting = false; 
     } 
    }; 
    btn = new Button(this); 
    btn.setText("Accept"); 
    btn.setVisibility(View.INVISIBLE); 
    MyLayout.addView(btn); 
    ///search shit 

    return true; 
} 

@Override 
public boolean onOptionsItemSelected(MenuItem item) { 
    // Handle action bar item clicks here. The action bar will 
    // automatically handle clicks on the Home/Up button, so long 
    // as you specify a parent activity in AndroidManifest.xml. 
    int id = item.getItemId(); 


    //noinspection SimplifiableIfStatement 
    if (id == R.id.action_settings) { 
     return true; 
    } 
    else if (id == R.id.action_add) { 


     et.add(new EditText(this)) ; 
     tv.add(new TextView(this)); 
     ct.add(new EditText(this)); 
     cb.add(new CheckBox(this)); 
     cb.get(ct.size() -1).setVisibility(View.INVISIBLE); 
     ct.get(ct.size() -1).setVisibility(View.INVISIBLE); 
     Calendar cal = Calendar.getInstance(); 
     String date = new SimpleDateFormat("dd-MM-yyyy").format(new Date()); 
     tv.get(tv.size() -1).setText("created on" + date); 
     et.get(et.size() - 1).setText("weeeeeeeeeee~!"); 
     MyLayout.addView(et.get(et.size() - 1)); 
     MyLayout.addView(ct.get(ct.size() -1)); 
     MyLayout.addView(tv.get(tv.size() - 1)); 
     MyLayout.addView(cb.get(cb.size() - 1)); 

     this.setContentView(sv); 

     et.get(last_added).setOnClickListener(new View.OnClickListener() { 
     @Override 
     public void onClick(View v) { 
      for(int i=0;i<et.size();i++) 
      { 
       if(et.get(i) == v) 
       { 
        last_added = i + 1; 
        break; 
       } 
      } 

      if(isWaiting) { 
       isWaiting = false; 
       timer.cancel(); 
       // TODO: open a new EditText 
       if(ct.get(last_added -1).isShown()) 
       { 
        ct.get(last_added -1).setVisibility(View.INVISIBLE); 
       } 
       else 

       { 
        ct.get(last_added -1).setVisibility(View.VISIBLE); 
       } 


       } 
      else { 
         isWaiting = true; 
         timer.start(); 
        } 
       } 
      }); 
     last_added++; 
     return true; 
    } 

    else if (id == R.id.action_delete) { 
     num_removed = 0; 
     btn.setVisibility(View.VISIBLE); 
     for (int i = 0; i < cb.size(); i++) { 
      cb.get(i).setVisibility(View.VISIBLE); 
     } 
     btn.setOnClickListener(new View.OnClickListener() { 
      int checked =0; 
      @Override 
      public void onClick(View v) { 
       while(true) 
       { 
        for(int j=0;j< cb.size();j++) 
        { 
         if(cb.get(j).isChecked()) 
         { 
          checked++; 
         } 

        } 
        if(checked == 0) 
        { 
         break; 
        } 
        for(int i=0;i<cb.size();i++) 
        { 
         if(cb.get(i).isChecked()) 
         { 
          et.get(i).setVisibility(View.GONE); 
          tv.get(i).setVisibility(View.GONE); 
          ct.get(i).setVisibility(View.GONE); 
          cb.get(i).setVisibility(View.GONE); 
          et.remove(i); 
          tv.remove(i); 
          ct.remove(i); 
          cb.remove(i); 
          last_added--; 
         } 
        } 
        checked = 0; 
       } 

       btn.setVisibility(View.INVISIBLE); 
       for (int i = 0; i < cb.size(); i++) { 
        cb.get(i).setVisibility(View.INVISIBLE); 
       } 
      } 
     }); 

     this.setContentView(sv); 

     return true; 
    } 
    else if (id == R.id.action_search) { 
     btn.setVisibility(View.VISIBLE); 
     for (int i = 0; i < cb.size(); i++) { 
      cb.get(i).setVisibility(View.VISIBLE); 
     } 

     return true; 
    } 

    else if (id == R.id.action_send) 
    { 


     btn.setVisibility(View.VISIBLE); 

     for (int i = 0; i < cb.size(); i++) 
     { 
      cb.get(i).setVisibility(View.VISIBLE); 
      cb.get(i).setChecked(false); 
     } 
     btn.setOnClickListener(new View.OnClickListener() 
     { 
      @Override 
      public void onClick(View v) { 
       String [] to = new String[]{}; 

       for(int j=0; j < cb.size();j++) 
       { 
        if(cb.get(j).isChecked()) 
        { 
         sendEmail(et.get(j).getText().toString(),ct.get(j).getText().toString()); 
        } 

       } 
       btn.setVisibility(View.INVISIBLE); 
       for (int i = 0; i < cb.size(); i++) 
       { 
        cb.get(i).setVisibility(View.INVISIBLE); 
       } 
     }}); 

     this.setContentView(sv); 

     return true; 
    } 
    return super.onOptionsItemSelected(item); 
} 




protected void sendEmail(String subject,String Context) 
{ 

    Intent emailIntent = new Intent(Intent.ACTION_SEND); 

    emailIntent.putExtra(Intent.EXTRA_SUBJECT,subject); 
    emailIntent.putExtra(Intent.EXTRA_TEXT,Context); 
    emailIntent.setType("message/rfc822"); 
    startActivity(Intent.createChooser(emailIntent,"Email")); 
} 

}