代码优化

video/app/src/main/java/com/duben/loveplayletu/ui/activitys/VipActivity.kt

@@ -2,6 +2,7 @@ package com.duben.loveplayletu.ui.activitys
 
 import android.animation.ValueAnimator
 import android.app.Dialog
+import android.content.Context
 import android.content.Intent
 import android.graphics.Color
 import android.net.Uri
@@ -9,12 +10,12 @@ import android.os.Bundle
 import android.os.Handler
 import android.os.Looper
 import android.text.TextUtils
+import android.util.DisplayMetrics
 import android.view.KeyEvent
 import android.view.View
+import android.view.WindowManager
 import android.widget.CompoundButton
-import android.widget.LinearLayout
 import androidx.recyclerview.widget.LinearLayoutManager
-import androidx.recyclerview.widget.RecyclerView
 import com.alipay.sdk.app.OpenAuthTask
 import com.daimajia.androidanimations.library.Techniques
 import com.daimajia.androidanimations.library.YoYo
@@ -430,6 +431,18 @@ class VipActivity : BaseActivity(), VipView, View.OnClickListener,
         }
     }
 
+    private fun moveToCenter(itemView: View) {
+        val locationView = IntArray(2)
+        itemView.getLocationOnScreen(locationView)
+        val viewWidth = itemView.width
+        val wm = getSystemService(Context.WINDOW_SERVICE) as WindowManager
+        val dm = DisplayMetrics()
+        wm.defaultDisplay.getMetrics(dm)
+        val centerX = dm.widthPixels / 2
+        val distance = locationView[0] - centerX + viewWidth / 2
+        rvVip.smoothScrollBy(distance, 0)
+    }
+
     private fun initListener() {
         shimmer_text?.postDelayed({
             shimmer_text?.startShimmerAnimation()
@@ -443,16 +456,25 @@ class VipActivity : BaseActivity(), VipView, View.OnClickListener,
         ll_vip_alipay.setOnClickListener(this)
         ll_vip_wx.setOnClickListener(this)
         cbVipAgreement.setOnCheckedChangeListener(this)
-
     }
 
-    override fun onItemClick(position: Int) {
+    override fun onItemClick(position: Int, view: View) {
         vipAdapter.setPosition(position)
         vipAdapter.notifyDataSetChanged()
 
         //设置content样式
         if (vipList != null && vipList!!.size > 0) {
             setVipContent(vipList!![position])
+
+            if (vipList!!.size > 2) {
+                if (position > 1 && position < vipList!!.size - 2) {
+                    moveToCenter(view);
+                } else if (position in 0..1) {
+                    rvVip.smoothScrollToPosition(0);
+                } else {
+                    rvVip.smoothScrollToPosition(vipList!!.size - 1);
+                }
+            }
         }
     }
 

video/app/src/main/java/com/duben/loveplayletu/ui/adapter/VipAdapter.kt

@@ -2,8 +2,6 @@ package com.duben.loveplayletu.ui.adapter
 
 import android.content.Context
 import android.graphics.Color
-import android.text.Html
-import android.view.Gravity
 import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
@@ -47,8 +45,7 @@ class VipAdapter(private val vipList: MutableList<VipBean.ListBean>) :
     override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): ViewHolder {
         context = parent.context
         val view = LayoutInflater.from(context).inflate(R.layout.item_rv_vip, parent, false)
-        val viewHolder = ViewHolder(view)
-        return viewHolder
+        return ViewHolder(view)
     }
 
     override fun onBindViewHolder(holder: ViewHolder, position: Int) {
@@ -90,12 +87,12 @@ class VipAdapter(private val vipList: MutableList<VipBean.ListBean>) :
 
         if (position == 0) {
             val layoutParams = holder.rlVipItemRoot.layoutParams as FrameLayout.LayoutParams
-            layoutParams.width = UIUtils.dp2px(190)
+            layoutParams.width = UIUtils.dp2px(170)
             holder.rlVipItemRoot.layoutParams = layoutParams
         }
 
         holder.rlVipItemRoot.setOnClickListener {
-            mOnItemClickListener.onItemClick(position)
+            mOnItemClickListener.onItemClick(position, it)
             notifyDataSetChanged()
         }
 
@@ -122,10 +119,10 @@ class VipAdapter(private val vipList: MutableList<VipBean.ListBean>) :
         holder.itemView.tag = position
     }
 
-    override fun getItemCount() = vipList?.size
+    override fun getItemCount() = vipList.size
 
     interface OnItemClickListener {
-        fun onItemClick(position: Int)
+        fun onItemClick(position: Int, view: View)
     }
 
     fun setOnItemClickListener(listener: OnItemClickListener) {

video/app/src/main/res/layout/item_rv_vip.xml

@@ -3,14 +3,14 @@
     xmlns:tools="http://schemas.android.com/tools"
     android:layout_width="wrap_content"
     android:layout_height="138dp"
-    android:layout_marginLeft="10dp"
+    android:layout_marginLeft="5dp"
     android:layout_marginTop="10dp"
-    android:layout_marginRight="10dp"
+    android:layout_marginRight="5dp"
     android:orientation="vertical">
 
     <FrameLayout
         android:id="@+id/rlVipItemRoot"
-        android:layout_width="150dp"
+        android:layout_width="130dp"
         android:layout_height="130dp"
         android:layout_marginTop="8dp"
         android:background="@drawable/shape_vip_adapter_none"