在android中动态添加文本框

Question

I am working on an app and need to add a textbox to the View when a button is selected. How can I do that or add any object dynamically. What class do I use or what method do I need to call? Thanks.

Answer 1

You just need to call the addView method to the target view. It's a method inherited from ViewGroup , see [here][2].

[2]:http://developer.android.com/reference/android/view/ViewGroup.html#addView(android.view.View, android.view.ViewGroup.LayoutParams)

Answer 2

One possibility is to define it in your layout XML, and set:

android:visibility="gone"

Then in your code you can do:

TextView myTextBox = (TextView) findViewById(R.id.myTextBoxId);
myTextBox.setVisibility(View.VISIBLE);

and to hide it again:

myTextBox.setVisibility(View.GONE);

Here is the documentation