Android编程实现创建,删除,判断快捷方式的方法

/**
* 为程序创建桌面快捷方式,这样写，在程序卸载的时候，快捷方式也会一并删除
*/
private void addShortcut() {
    Intent shortcutIntent = new Intent(
        "com.android.launcher.action.INSTALL_SHORTCUT");
    // 快捷方式的名称
    shortcutIntent.putExtra(Intent.EXTRA_SHORTCUT_NAME,getString(R.string.app_name));
    shortcutIntent.putExtra("duplicate",false); // 不允许重复创建
    /*
     * shortcutIntent.putExtra(Intent.EXTRA_SHORTCUT_INTENT,new Intent(
     * getApplicationContext(),SplashActivity.class));
     */
    // 注意: ComponentName的第二个参数必须加上点号(.)，否则快捷方式无法启动相应程序
    ComponentName comp = new ComponentName(this.getPackageName(),this.getPackageName() + "." + this.getLocalClassName());
    Intent intent = new Intent(Intent.ACTION_MAIN);
    intent.setAction("android.intent.action.MAIN");
    intent.addCategory("android.intent.category.LAUNCHER");
    shortcutIntent.putExtra(Intent.EXTRA_SHORTCUT_INTENT,intent.setComponent(comp));
    // 快捷方式的图标
    ShortcutIconResource iconRes = Intent.ShortcutIconResource.fromContext(
        this,R.drawable.icon_launcher);
    shortcutIntent.putExtra(Intent.EXTRA_SHORTCUT_ICON_RESOURCE,iconRes);
    sendBroadcast(shortcutIntent);
}
//判断是否已经创建快捷方式
private boolean hasShortcut() {
    boolean isInstallShortcut = false;
    final ContentResolver resolver = this.getContentResolver();
    final String AUTHORITY;
    if (android.os.Build.VERSION.SDK_INT < 8) {
      AUTHORITY = "com.android.launcher.settings";
    } else {
      AUTHORITY = "com.android.launcher2.settings";
    }
    final Uri CONTENT_URI = Uri.parse("content://" + AUTHORITY
        + "/favorites?notify=true");
    Cursor c = resolver
        .query(CONTENT_URI,new String[] { "title","iconResource" },"title=?",new String[] { this.getString(R.string.app_name).trim() },null);
    if (c != null && c.getCount() > 0) {
      isInstallShortcut = true;
    }
    return isInstallShortcut;
}