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PODynamically display imagebuttons in AsyncTask
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2013-04-08T22:07:57.010
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So I am retrieving images from Parse and dynamically displaying them in a ScrollView LinearLayout, but I can't seem to add a clickListener or add them to the view. Here's what I have: <pre><code>MyTaskParams params = new MyTaskParams(drinkList.get(j).getString("Name"), data, lPos, drinkList.get(j).getObjectId(), j); MyTask myTask = new MyTask(); myTask.execute(params); </code></pre> And then in I pass all my data and try adding the ImageButton to the view. <pre><code>private static class MyTaskParams { String name; byte[] data; int lPos; String id; int j; public MyTaskParams(String name, byte[] data, int lPos, String id, int j) { this.data = data; this.name = name; this.lPos = lPos; this.id = id; this.j = j; } } private class MyTask extends AsyncTask<MyTaskParams, Void, MyTaskParams> { @Override protected MyTaskParams doInBackground(MyTaskParams... params) { String name = params[0].name; byte[] data = params[0].data; int lPos = params[0].lPos; String id = params[0].id; int j = params[0].j; Log.d("DOINBACKGROUND", data.toString()); bmp = BitmapFactory.decodeByteArray(data, 0, data.length); btn = new ImageButton(getActivity()); btn.setId(j); btn.setTag(name); btn.setImageBitmap(bmp); btn.setBackgroundDrawable(null); btn.setMaxHeight(100); btn.setMaxWidth(100); btn.setOnClickListener(new DrinkButtonListener(getActivity(), lPos, id)); lLayout[lPos].addView(btn); return null; } } </code></pre> Why can't I create a ClickListener or add the button to the view? I get the error: "Only the original thread that created a view hierarchy can touch its views" 
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<android><dynamic><android-asynctask><android-view>
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Dynamically display imagebuttons in AsyncTask
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