Implementation Prerequisites - Learn OpenGL ES: For Mobile Game and Graphics Development - page 54

surfaceView.setEGLContextClientVersion(2);
surfaceView.setRenderer(new
GLES20Renderer());
setContentView(_surfaceView);

2. Add the lines of code from Listing 2-8 after the setContentView
method to create a LinearLayout with LayoutParams lay-
outParamsUpDown and gravity bottom-left to keep the Lin-
earLayout away from the back button while in landscape mode (we
set screenOrientation to landscape later in this section). Quick
fix errors (if any) to import the required classes.

Listing 2-8. SLEEK UI/src/com/apress/android/sleekui/

Main.java

LinearLayout layout = new LinearLayout(this);
LinearLayout.LayoutParams layoutParamsUpDown
= new LinearLayout.LayoutParams(
LinearLayout.LayoutParams.MATCH_PARENT,
LinearLayout.LayoutParams.MATCH_PARENT);
layout.setGravity(Gravity.BOTTOM |
Gravity.LEFT);

3. To inflate XML-based views from a layout file, get access to the inflater
service by calling: getSystemSer-
vice(Context.LAYOUT_INFLATER_SERVICE);

4. Create a View object to reference the inflated view returned by the in-
flater.inflate method (as shown in Listing 2-9 ).

Listing 2-9. SLEEK UI/src/com/apress/android/sleekui/

Main.java

LayoutInflater inflater = (LayoutInflater)
getSystemService(Context.LAYOUT_INFLATER_SERVICE);
View linearLayoutView = inflater
.inflate(R.layout.updown, layout, false);

5. After quick fixing the errors for unimported classes, rename the file
main.xml (inside res/layout folder) as updown.xml .