Discovery about Launcher on Android 4.x (Ice Cream Sandwich) Part4

Launcher part 4

Layout Simple Overview

<com.android.launcher2.AppsCustomizeTabHost>

          <LinearLayout>

               <FrameLayout>

                    <com.android.launcher2.FocusOnlyTabWidget/>

               <include android:id="@+id/market_button"/>(TextView)

           </FrameLayout>

           <FrameLayout>

               <com.android.launcher2.AppsCustomizePagedView/>

           </FrameLayout>

     </LinearLayout>
</com.android.launcher2.AppsCustomizeTabHost>

The mapping between user view and actual code

How to add an new app icon into the application list in launcher ? Or what is the process ?

Following my habit : See the map of call-stacks !

Special Case/Idea

Do you want to replace the position of ap icon in Application List ?

Original Rule of Order is by the rank of Letters.

But, you can …swap the position of the first icon with the second one.(Red Part)

AppsCustomizePagedView.java (..\packages\apps\launcher2\src\com\android\launcher2)

public void setApps(ArrayList<ApplicationInfo> list) {

…

mApps = list;

…

ApplicationInfo list1 = mApps.get(0);

mApps.set(0, mApps.get(1)); // 0 -> 1

mApps.set(1, list1); // 1 -> 0

…

}

P.S this just is one of methods to achieve it.

The ScreenShot before modifying:

The ScreenShot After modifying:

Part 4 is over
The discovery about Launcher is really finished!!!

Thank you for your patient reading