Android实现侧滑功能

1.添加依赖：implementation ‘me.imid.swipebacklayout.lib:library:1.1.0’ （如果添加失败，请试着翻墙后再试）

2.继承 SwipeBackLayout ,获取SwipeBackLayout ,添加滑动返回的方向。

public class LoginActivity extends SwipeBackActivity{}

3. SwipeBackLayout  mSwipeBackLayout = getSwipeBackLayout();  //获取SwipeBackLayout
    int edgeFlag = SwipeBackLayout.EDGE_LEFT;//设置从左滑动返回 
    mSwipeBackLayout.setEdgeTrackingEnabled(edgeFlag); //开启滑动返回