[Solved] How to show text area when check box is checked in android

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The text area can be added to the layout XML and hidden until needed using:

android:visibility="gone"

Once the checkbox is checked, you can check the state and show the text area:

CheckBox checkBox = (CheckBox) findViewById(R.id.checkboxID);
if (checkBox.isChecked()) {
    textarea.setVisibility(View.VISIBLE);
}

You can load all of this is an onClickListener so the action fires when the box is checked/unchecked.

solved How to show text area when check box is checked in android