How to Auto scroll TextView Android Java

I listed how to auto-scroll text containers in C# while ago, and now that I am developing other applications for Android, I needed to do the same for the following:

TextView:
Rx_text is a TextView Container.  and O_Text is a variable of type String


Rx_text.append(O_Text);
Rx_text_scroll_view.scrollTo(0, Rx_text.getBottom());

Android Development How to Set Focus

You ever need to set focus for a control on your GUI.
You could design a GUI interface for your Android application but, you need to set the focus to one specific control on start-up.  In this example I am using a Button control for that.  You have two options, option one: add the focus option in the xml file that describes your GUI, or option two: add the code that does the same thing in option one but can be used in run time instead of only once on start-up.

Option One:
Add this part to your xml GUI file



<Button
android:id="@+id/open_bt"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/open_comm"
android:onClick="onClick"
android:focusableInTouchMode="true"
>
<requestFocus/>
</Button>



Option Two:
Add this to the Activity module:

static Button Open_Button;

Open_Button = (Button) findViewById(R.id.open_bt);

Open_Button.setFocusableInTouchMode(true);
Open_Button.requestFocus();


More information will be added, and screen shots...