public void method in for loop; can't recieve loop variable

Here's my for loop. Problem: I need to get a listener on an array of buttons and get the button depending on array number appending some text to a textview array with the same number.

Problem is, I can't get int i to the public void method. If I declare it my main class, the application just gets failed. When I'm changing the i value to some real integer, it works. so I figured out that the problem is - onClick method is receiving a null instead of i.

 for(int i=0; i<n;i++){
     btninput.get(i).setOnClickListener(new OnClickListener() {

         @Override
         public 开发者_运维技巧void onClick(View v) {
             converswindow.get(i).append(Html.fromHtml("<b>Вы:</b> "+msginput.get(i).getText()+"<br />"));
             msginput.get(i).setText("");
         }
     });
 }

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I'm not sure if this would work or not, but try:

for(int i=0; i<n; i++) {
    final int j = i;
    btninput.get(i).setOnClickListener(new OnClickListener() {

        @Override
        public void onClick(View v) {
            converswindow.get(j).append(Html.fromHtml("<b>Вы:</b> "+msginput.get(i).getText()+"<br />"));
            msginput.get(j).setText("");
        }
    });
}

If that doesn't work, you can use Android's View tag mechanism to add data to the button. Read about View.setTag(...) and View.getTag(...) for more information there.

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anonymous classes can't access local vars in their methods you need to make them instance vars of the objects (here I did it with ind)

for(int i=0; i<n;i++){
        btninput.get(i).setOnClickListener(new OnClickListener() {
             int ind=i;//here keep a copy of the local var

            @Override
            public void onClick(View v) {
              converswindow.get(ind).append(Html.fromHtml("<b>Вы:</b> "+msginput.get(ind).getText()+"<br />"));
              msginput.get(ind).setText("");
            }
       });
}

---

try using

public void onClick(View v) {
              converswindow.get(btninput.indexOf(v)).append(Html.fromHtml("<b>Вы:</b> "+msginput.get(btninput.indexOf(v).getText()+"<br />"));
              msginput.get(btninput.indexOf(v)).setText("");

---

Or you could create a custom OnClickListener and give it a constructor that receives an int:

public class CustomListener implements OnClickListener {
    int i;

    CustomListener(int i) {
        this.i = i;
    }

    @Override
    public void onClick(View v) {
        converswindow.get(j).append(Html.fromHtml("<b>Вы:</b>"+msginput.get(i).getText()+"<br />"));
        msginput.get(j).setText("");
    }

}

Then you could call it like this:

btninput.get(i).setOnClickListener(new CustomListener(i));