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TranslucentFancyActivity.javaAPI DocGoogle Android v1.5 Example2803Sun Nov 11 13:01:04 GMT 2007com.google.android.samples.app

TranslucentFancyActivity

public class TranslucentFancyActivity extends android.app.Activity

Fancy Translucent Activity

This demonstrates the how to write an activity that is translucent, allowing windows underneath to show through, with a fancy compositing effect.

Demo

App/Activity/Translucent Fancy

Source files

src/com/google/android/samples/app/TranslucentFancyActivity.java The Translucent Fancy Screen implementation
/res/any/layout/translucent_background.xml Defines contents of the screen

Fields Summary
Constructors Summary
Methods Summary
protected voidonCreate(android.os.Bundle icicle)
Initialization of the Activity after it is first created. Must at least call {@link android.app.Activity#setContentView setContentView()} to describe what is to be displayed in the screen.

        // Be sure to call the super class.
        super.onCreate(icicle);

        // Have the system blur any windows behind this one.
        getWindow().setFlags(WindowManager.LayoutParams.BLUR_BEHIND_FLAG,
                WindowManager.LayoutParams.BLUR_BEHIND_FLAG);
        
        // Apply a tint to any windows behind this one.  Doing a tint this
        // way is more efficient than using a translucent background.  Note
        // that the tint color really should come from a resource.
        WindowManager.LayoutParams lp = getWindow().getAttributes();
        lp.tintBehind = 0x60000820;
        getWindow().setAttributes(lp);
        
        // See assets/res/any/layout/translucent_background.xml for this
        // view layout definition, which is being set here as
        // the content of our screen.
        setContentView(R.layout.translucent_background);