如何在android中动态更改APP图标

Question

I have tried below code in order to change application icon dynamically but no use.

Manifest:

<uses-permission android:name="com.android.launcher.action.INSTALL_SHORTCUT"/>

Class:

Intent myLauncherIntent = new Intent();
myLauncherIntent.setClassName("your.package.name", "YourLauncherActivityName");
myLauncherIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);

Intent intent = new Intent();
intent.putExtra(Intent.EXTRA_SHORTCUT_INTENT, myLauncherIntent);
intent.putExtra(Intent.EXTRA_SHORTCUT_NAME, "Application Name");
intent.putExtra
       (
        Intent.EXTRA_SHORTCUT_ICON_RESOURCE,
        Intent.ShortcutIconResource.fromContext
                                    (
                                         getApplicationContext(),
                                         R.drawable.app_icon
                                    )
       );
intent.setAction("com.android.launcher.action.INSTALL_SHORTCUT");

getApplicationContext().sendBroadcast(intent);

I need to show counter on app icon whenever any incoming message comes to my app like gmail app. So How can i get app icon & set icon dynamically in android???

Answer 1

You cannot modify the app icon dynamically. Gmail does not modify the app icon dynamically.

A home screen -- being the app that actually displays these things -- could elect to apply a badge to certain app icons. And you can create an app widget that looks like an icon with a badge.