【起航计划 022】2015 起航计划 Android APIDemo的魔鬼步伐 21 App->Launcher Shortcuts 为某个非主Activity在Home Screen上建立一个快捷方式

<action android:name=”android.intent.action.MAIN” />
<category android:name=”android.intent.category.LAUNCHER” />

<action android:name=”android.intent.action.CREATE_SHORTCUT” /> 

private static final String EXTRA_KEY = "com.example.android.apis.app.LauncherShortcuts";

        // If the intent is a request to create a shortcut, we‘ll do that and exit

        if (Intent.ACTION_CREATE_SHORTCUT.equals(action)) {
            setupShortcut();
            finish();
            return;
        }

    /**
     * This function creates a shortcut and returns it to the caller.  There are actually two 
     * intents that you will send back.
     * 
     * The first intent serves as a container for the shortcut and is returned to the launcher by 
     * setResult().  This intent must contain three fields:
     * 
     * <ul>
     * <li>{@link android.content.Intent#EXTRA_SHORTCUT_INTENT} The shortcut intent.</li>
     * <li>{@link android.content.Intent#EXTRA_SHORTCUT_NAME} The text that will be displayed with
     * the shortcut.</li>
     * <li>{@link android.content.Intent#EXTRA_SHORTCUT_ICON} The shortcut‘s icon, if provided as a
     * bitmap, <i>or</i> {@link android.content.Intent#EXTRA_SHORTCUT_ICON_RESOURCE} if provided as
     * a drawable resource.</li>
     * </ul>
     * 
     * If you use a simple drawable resource, note that you must wrapper it using
     * {@link android.content.Intent.ShortcutIconResource}, as shown below.  This is required so
     * that the launcher can access resources that are stored in your application‘s .apk file.  If 
     * you return a bitmap, such as a thumbnail, you can simply put the bitmap into the extras 
     * bundle using {@link android.content.Intent#EXTRA_SHORTCUT_ICON}.
     * 
     * The shortcut intent can be any intent that you wish the launcher to send, when the user 
     * clicks on the shortcut.  Typically this will be {@link android.content.Intent#ACTION_VIEW} 
     * with an appropriate Uri for your content, but any Intent will work here as long as it 
     * triggers the desired action within your Activity.
     */
    private void setupShortcut() {
        // First, set up the shortcut intent.  For this example, we simply create an intent that
        // will bring us directly back to this activity.  A more typical implementation would use a 
        // data Uri in order to display a more specific result, or a custom action in order to 
        // launch a specific operation.

        Intent shortcutIntent = new Intent(Intent.ACTION_MAIN);
        shortcutIntent.setClassName(this, this.getClass().getName());
        shortcutIntent.putExtra(EXTRA_KEY, "ApiDemos Provided This Shortcut");

        // Then, set up the container intent (the response to the caller)

        Intent intent = new Intent();
        intent.putExtra(Intent.EXTRA_SHORTCUT_INTENT, shortcutIntent);
        intent.putExtra(Intent.EXTRA_SHORTCUT_NAME, getString(R.string.shortcut_name));
        Parcelable iconResource = Intent.ShortcutIconResource.fromContext(
                this,  R.drawable.app_sample_code);
        intent.putExtra(Intent.EXTRA_SHORTCUT_ICON_RESOURCE, iconResource);

        // Now, return the result to the launcher

        setResult(RESULT_OK, intent);
    }