直播帶貨原始碼，圖片左上角或右上角點選返回按鈕實現的相關程式碼

    [btn_off setImage:[UIImage imageNamed:@"hifi_off"] forState:(UIControlStateNormal)];
    [btn_off addTarget:self action:@selector(bgAction) forControlEvents:(UIControlEventTouchUpInside)];
    btn_off.contentHorizontalAlignment = UIControlContentHorizontalAlignmentLeft;
    btn_off.contentVerticalAlignment = UIControlContentVerticalAlignmentBottom;
    btn_off.backgroundColor = UIColor.greenColor;
    [contentView addSubview:btn_off];
其中 btn_off.contentHorizontalAlignment = UIControlContentHorizontalAlignmentLeft; 為圖片居左
btn_off.contentVerticalAlignment = UIControlContentVerticalAlignmentBottom; 為圖片置底

​以上就是 直播帶貨原始碼，圖片左上角或右上角點選返回按鈕實現的相關程式碼，更多內容歡迎關注之後的文章