控制层上的按钮如何 添加 删除 修改?

本文均以修改player.defaultEdgeControlLayer为例, 播放器上的其他控制层的调整与此相同.

控制层上的布局根据区域分为: topAdapter, leftAdapter, bottomAdapter, rightAdapter 及 centerAdapter. 我们将与这些 adapter 进行交互, 调整它们上面的按钮.

添加

在 topAdapter 上添加一个分享按钮

    // 为分享按钮提供一个标识tag(tag需要是唯一的, 后续在需要时, 可用于获取该item)
    SJEdgeControlButtonItemTag shareItemTag = 10;
    // 创建分享按钮
    SJEdgeControlButtonItem *shareItem = [SJEdgeControlButtonItem.alloc initWithImage:[UIImage imageNamed:@"icon_share.png"] target:self action:@selector(shareItemWasTapped) tag:shareItemTag];
    // 添加到 topAdapter 中
    [_player.defaultEdgeControlLayer.topAdapter addItem:shareItem];
    [_player.defaultEdgeControlLayer.topAdapter reload];

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删除

删除 topAdapter 上的返回按钮

    [_player.defaultEdgeControlLayer.topAdapter removeItemForTag:SJEdgeControlLayerTopItem_Back];
    [_player.defaultEdgeControlLayer.topAdapter reload];

---

修改

• 修改点击事件

  获取到 topAdapter 上的返回按钮, 并修改按钮的点击事件

    SJEdgeControlButtonItem *backItem = [_player.defaultEdgeControlLayer.topAdapter itemForTag:SJEdgeControlLayerTopItem_Back];
    [backItem addTarget:self action:@selector(backItemWasTapped)];

• 修改间距

  获取到 topAdapter 上的返回按钮, 并修改前后间距

    SJEdgeControlButtonItem *backItem = [_player.defaultEdgeControlLayer.topAdapter itemForTag:SJEdgeControlLayerTopItem_Back];
    backItem.insets = SJEdgeInsetsMake(20, 20);
    [_player.defaultEdgeControlLayer.topAdapter reload];

---

位置调整

将 bottomAdapter 上的播放按钮与全屏按钮交换位置

    [_player.defaultEdgeControlLayer.bottomAdapter exchangeItemForTag:SJEdgeControlLayerBottomItem_Play withItemForTag:SJEdgeControlLayerBottomItem_FullBtn];
    [_player.defaultEdgeControlLayer.bottomAdapter reload];