recyerview增加动画

baseSDK/src/main/java/com/dayu/base/ui/adapter/CoreAdapter.java

 package com.dayu.base.ui.adapter;
 
+import android.animation.ObjectAnimator;
 import android.content.Context;
 import android.databinding.DataBindingUtil;
 import android.support.annotation.LayoutRes;
+import android.support.annotation.NonNull;
 import android.support.v7.widget.RecyclerView;
 import android.view.LayoutInflater;
 import android.view.View;
@@ -45,6 +47,7 @@ public class CoreAdapter<M, B> extends RecyclerView.Adapter<BaseViewHolder> {
     private boolean isNeedFoot = false;
     private View mFootView;
     private int mFootViewType;
+    private int oldPosition = -1;
 
     @Override
     public BaseViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
@@ -86,10 +89,6 @@ public class CoreAdapter<M, B> extends RecyclerView.Adapter<BaseViewHolder> {
         }
     }
 
-    public void setViewType(@LayoutRes int type) {
-        this.viewType = type;
-    }
-
     public void setTypeSelector(TypeSelector mTypeSelector) {
         this.mTypeSelector = mTypeSelector;
         this.viewType = Constants.FLAG_MULTI_VH;
@@ -106,6 +105,7 @@ public class CoreAdapter<M, B> extends RecyclerView.Adapter<BaseViewHolder> {
 
     /**
      * 目前只支持添加一个脚布局.
+     *
      * @param view
      * @param type
      */
@@ -232,6 +232,18 @@ public class CoreAdapter<M, B> extends RecyclerView.Adapter<BaseViewHolder> {
         }
     }
 
+    @Override
+    public void onViewAttachedToWindow(@NonNull BaseViewHolder holder) {
+        if (holder.getLayoutPosition() > oldPosition) {
+            addItemAnimation(holder.itemView);
+            oldPosition = holder.getLayoutPosition();
+        }
+    }
+
+    private void addItemAnimation(View itemView) {
+        ObjectAnimator.ofFloat(itemView, "translationY", 500f, 0f).setDuration(500).start();
+    }
+
     /**
      * 继承coreadapter需要重写此方法.
      *

baseSDK/src/main/java/com/dayu/utils/UIUtils.java

@@ -74,7 +74,7 @@ public class UIUtils {
      * @param dp
      * @return
      */
-    public int dp2px(int dp) {
+    public static int dp2px(int dp) {
         // 获取手机屏幕的密度
         float density = getResources().getDisplayMetrics().density;
         return (int) (dp * density + 0.5f);    // 加0.5是为了四舍五入

orderCenter/src/main/java/com/dayu/order/ui/activity/MultiProcessOrderActivity.java

@@ -71,9 +71,9 @@ public class MultiProcessOrderActivity extends BaseActivity<MultiProcessOrderPre
             mBind.ivDelete.setVisibility(View.GONE);
             mSnImages.clear();
         });
-        mBind.scan.setOnClickListener(v -> {
-            new IntentIntegrator(this).setOrientationLocked(false).setCaptureActivity(CustomScannerActivity.class).initiateScan();
-        });
+//        mBind.scan.setOnClickListener(v -> {
+//            new IntentIntegrator(this).setOrientationLocked(false).setCaptureActivity(CustomScannerActivity.class).initiateScan();
+//        });
     }
 
     @Override