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POAndroid ListView custom row with multiple buttons troubles with OnClickListener it affects multiple list items
 

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  1. POAndroid ListView custom row with multiple buttons troubles with OnClickListener it affects multiple list items
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    <p>Hello I have searched the forum for hours now and decided to place a question cause I can't really find what's wrong in my code. I have a ListView followed by a custom adapter. Each item in my listView looks like this "|txtView| |Btn 0| |Btn 1| |Btn 2|" and I'm using ViewHolder to increase performance. I use setOnClickListener from the custom adapter. Each button clicked should change it's background to Green color and the others to gray. </p> <p>My <strong>problem</strong> is that when clicking on a certain button at certain row item it also <strong>changes</strong> the background on another button at another row. I don't seem to find my problem , i'm guessing it's related to the fact i'm using the reuse ability with the ViewHolder. </p> <p>Hope you guys can help , many thanks. </p> <p>this is my getView inside the adapter</p> <pre><code>@Override public View getView(int position, View convertView, ViewGroup parent) { ViewHolder holder = null; if (convertView == null) { convertView = mInflater.inflate(R.layout.bet_list_item, null); holder = new ViewHolder(); holder.tvGameDescription = (TextView) convertView .findViewById(R.id.gameDescription); holder.button0 = (Button) convertView .findViewById(R.id.button0); holder.button1 = (Button) convertView .findViewById(R.id.button1); holder.button2 = (Button) convertView .findViewById(R.id.button2); convertView.setTag(holder); } else { holder = (ViewHolder) convertView.getTag(); } MyOnclickListener myOnclickListener = new MyOnclickListener(holder); holder.buttonSide1.setOnClickListener(myOnclickListener); holder.buttonSideX.setOnClickListener(myOnclickListener); holder.buttonSide2.setOnClickListener(myOnclickListener); </code></pre> <p>this is the listener implementation : </p> <pre><code>private class MyOnclickListener implements OnClickListener { private ViewHolder viewHolder; boolean[] buttonsClickStatus = { false, false, false }; //all gray at start and not clicked public MyOnclickListener(ViewHolder viewHolder) { this.viewHolder = viewHolder; } @Override public void onClick(View v) { switch (((Data) v.getTag()).getBtnPosition()) { case Consts.BUTTON_0: if (!buttonsClickStatus[0]) { // case the btn is gray unclicked setButtonsaBackground(0); // changes the background buttonsClickStatus[0] = true; buttonsClickStatus[1] = false; buttonsClickStatus[2] = false; } else { // case already green clicked already addOrRemove = false; setButtonsaBackground(3); for (int i = 0; i &lt; buttonsClickStatus.length; i++) { buttonsClickStatus[i] = false; } } break; case Consts.BUTTON_1: if (!buttonsClickStatus[1]) { // case gray setButtonsaBackground(1); buttonsClickStatus[1] = true; buttonsClickStatus[0] = false; buttonsClickStatus[2] = false; } else { // case already green addOrRemove = false; setButtonsaBackground(3); for (int i = 0; i &lt; buttonsClickStatus.length; i++) { buttonsClickStatus[i] = false; } } break; case Consts.BUTTON_2: if (!buttonsClickStatus[2]) { // case gray setButtonsaBackground(2); buttonsClickStatus[2] = true; buttonsClickStatus[0] = false; buttonsClickStatus[1] = false; } else { // case already green addOrRemove = false; setButtonsaBackground(3); for (int i = 0; i &lt; buttonsClickStatus.length; i++) { buttonsClickStatus[i] = false; } } break; default: break; } //call a function to update data only in the activity myActivity.update((Data) v.getTag()); } </code></pre> <p>SetBackground is inside the listener as private method: </p> <pre><code> private void setButtonsaBackground(int clicked) { switch (clicked) { case 0: viewHolder.button0.setBackgroundColor(Color.GREEN); viewHolder.button1.setBackgroundColor(Color.GRAY); viewHolder.button2.setBackgroundColor(Color.GRAY); break; case 1: viewHolder.button1.setBackgroundColor(Color.GREEN); viewHolder.button0.setBackgroundColor(Color.GRAY); viewHolder.button2.setBackgroundColor(Color.GRAY); break; case 2: viewHolder.button2.setBackgroundColor(Color.GREEN); viewHolder.button0.setBackgroundColor(Color.GRAY); viewHolder.button1.setBackgroundColor(Color.GRAY); break; case 3: viewHolder.button2.setBackgroundColor(Color.GRAY); viewHolder.button0.setBackgroundColor(Color.GRAY); viewHolder.button1.setBackgroundColor(Color.GRAY); break; default: break; } } </code></pre>
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    1. USMikael
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      1. VTUpMod
    1. COposition in getview is the position of your listview item. check if position==0 then click button .
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      1. USRaghunandan
 

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