Android 滑动返回Activity的实现代码

package com.example.wyj.cainiaoshopping.activity;import android.support.annotation.Nullable;import android.support.v7.app.AppCompatActivity;import android.os.Bundle;import com.example.wyj.cainiaoshopping.R;import me.imid.swipebacklayout.lib.SwipeBackLayout;import me.imid.swipebacklayout.lib.app.SwipeBackActivity;public class SwiftActivity extends SwipeBackActivity {  private SwipeBackLayout mSwipeBackLayout;  @Override  protected void onCreate(Bundle savedInstanceState) {    super.onCreate(savedInstanceState);    setContentView(R.layout.activity_swift);    mSwipeBackLayout = getSwipeBackLayout();    int edgeFlag = SwipeBackLayout.EDGE_LEFT;    mSwipeBackLayout.setEdgeTrackingEnabled(edgeFlag);   // saveTrackingMode(edgeFlag);  }}

compile 'me.imid.swipebacklayout.lib:library:1.0.0'

<item name="Android:windowIsTranslucent">true</item>