Android小组件添加到主屏幕(手机桌面)的方法实例

if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
    AppWidgetManager mAppWidgetManager = getSystemService(AppWidgetManager.class);
    ComponentName myProvider = new ComponentName(AddWidgetActivity.this, AppWidgetSmall.class);
    Bundle b = new Bundle();
    b.putString("ggg", "ggg");
    if (mAppWidgetManager.isRequestPinAppWidgetSupported()) {
        Intent pinnedWidgetCallbackIntent = new Intent(AddWidgetActivity.this, AppWidgetSmall.class);
        PendingIntent successCallback = PendingIntent.getBroadcast(AddWidgetActivity.this, 0,
                pinnedWidgetCallbackIntent, 0);
        mAppWidgetManager.requestPinAppWidget(myProvider, b, successCallback);
    }
}

private void addShortcut() {
    //Adding shortcut for MainActivity 
    //on Home screen
    Intent shortcutIntent = new Intent(getApplicationContext(),
            MainActivity.class);
    shortcutIntent.setAction(Intent.ACTION_MAIN);
    Intent addIntent = new Intent();
    addIntent
            .putExtra(Intent.EXTRA_SHORTCUT_INTENT, shortcutIntent);
    addIntent.putExtra(Intent.EXTRA_SHORTCUT_NAME, "HelloWorldShortcut");
    addIntent.putExtra(Intent.EXTRA_SHORTCUT_ICON_RESOURCE,
            Intent.ShortcutIconResource.fromContext(getApplicationContext(),
                    R.drawable.ic_launcher));
    addIntent
            .setAction("com.android.launcher.action.INSTALL_SHORTCUT");
    getApplicationContext().sendBroadcast(addIntent);
}