实现隐藏桌面图标（PackageManager.setComponentEnabledSetting()方法）

实例：如何隐藏桌面图标

方法setComponenetEnabledSetting()方法介绍

——————————隐藏桌面图标——————————

    public void hideIcon(Context context, Class<?> cls) {        PackageManager packageManager = context.getPackageManager();// 获取PackageManager        ComponentName componentName = new ComponentName(this, cls);// 获取类名对于的组件名称        int componentState = packageManager                .getComponentEnabledSetting(componentName);// 返回组件的启动状态        if (componentState == PackageManager.COMPONENT_ENABLED_STATE_DEFAULT                || componentState == PackageManager.COMPONENT_ENABLED_STATE_ENABLED) {            packageManager.setComponentEnabledSetting(componentName,                    PackageManager.COMPONENT_ENABLED_STATE_DISABLED,                    PackageManager.DONT_KILL_APP);        } else {            packageManager.setComponentEnabledSetting(componentName,                    PackageManager.COMPONENT_ENABLED_STATE_DEFAULT,                    PackageManager.DONT_KILL_APP);        }    }

—————————————–setComponentEnabledSetting()———————————–

    /**     * Set the enabled setting for a package component (activity, receiver, service, provider).     * This setting will override any enabled state which may have been set by the component in its     * manifest.     *     * @param componentName The component to enable     * @param newState The new enabled state for the component.  The legal values for this state     *                 are:     *                   {@link #**COMPONENT_ENABLED_STATE_ENABLED**},//可见的     *                   {@link #**COMPONENT_ENABLED_STATE_DISABLED**}//不可见     *                   and     *                   {@link #**COMPONENT_ENABLED_STATE_DEFAULT**}//默认的，可见     *                 The last one removes the setting, thereby restoring the component's state to     *                 whatever was set in it's manifest (or enabled, by default).     * @param flags Optional behavior flags: {@link #DONT_KILL_APP} or 0.     */    public abstract void setComponentEnabledSetting(ComponentName componentName,            int newState, int flags);