Android RecyclerView measureTimeMillis Glide GridLayoutManager，kotlin

你的名字 2023-10-12 10:44 8阅读 0赞

## Android RecyclerView measureTimeMillis Glide GridLayoutManager，kotlin ##

##  ##

implementation 'com.github.bumptech.glide:glide:4.15.1'

import android.os.Bundle
    import androidx.appcompat.app.AppCompatActivity
    import androidx.recyclerview.widget.GridLayoutManager
    import androidx.recyclerview.widget.RecyclerView
    
    class MainActivity : AppCompatActivity() {
        companion object {
            val TAG = "fly"
        }
    
        override fun onCreate(savedInstanceState: Bundle?) {
            super.onCreate(savedInstanceState)
            setContentView(R.layout.activity_main)
    
            val recyclerView: RecyclerView = findViewById(R.id.recyclerview)
            val layoutManager = GridLayoutManager(this, 5)
            recyclerView.setLayoutManager(layoutManager)
            var photoAdapter = PhotoAdapter(this)
            recyclerView.setAdapter(photoAdapter)
    
            //recyclerView.setHasFixedSize(true)
            //recyclerView.setItemViewCacheSize(100)
        }
    }

<?xml version="1.0" encoding="utf-8"?>
    <androidx.recyclerview.widget.RecyclerView xmlns:android="http://schemas.android.com/apk/res/android"
        xmlns:tools="http://schemas.android.com/tools"
        android:id="@+id/recyclerview"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        tools:context=".MainActivity" />

import android.content.Context
    import android.util.Log
    import android.view.LayoutInflater
    import android.view.View
    import android.view.ViewGroup
    import androidx.recyclerview.widget.RecyclerView
    import com.bumptech.glide.Glide
    import kotlin.system.measureTimeMillis
    
    class PhotoAdapter(private val context: Context) : RecyclerView.Adapter<PhotoHolder>() {
    
        private fun createView(parent: ViewGroup): View {
            var view: View?
            val time = measureTimeMillis {
                view = LayoutInflater.from(parent.context).inflate(R.layout.item, parent, false)
            }
            Log.d(MainActivity.TAG, "$time @createView")
            return view!!
        }
    
        override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): PhotoHolder {
            var holder: PhotoHolder?
    
            val time = measureTimeMillis {
                holder = PhotoHolder(createView(parent))
            }
            Log.d(MainActivity.TAG, "$time @onCreateViewHolder")
    
            return holder!!
        }
    
        override fun onBindViewHolder(holder: PhotoHolder, pos: Int) {
            val time = measureTimeMillis {
                bindHolder(holder, pos)
            }
            Log.d(MainActivity.TAG, "$time @onBindViewHolder")
        }
    
        private fun bindHolder(holder: PhotoHolder, pos: Int) {
            var resId: Int?
            when (pos % 2) {
                0 -> {
                    resId = R.drawable.ic_launcher_foreground
                }
    
                else -> {
                    resId = R.drawable.ic_launcher_background
                }
            }
    
            Glide.with(context).load(resId).into(holder.image)
            //holder.image.setImageResource(resId)
            holder.pos.setText("$pos")
            holder.text.setText("-$pos-")
        }
    
        override fun getItemCount(): Int {
            return Int.MAX_VALUE
        }
    }

<?xml version="1.0" encoding="utf-8"?>
    <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="vertical"
        android:padding="1dp">
    
        <ImageView
            android:id="@+id/image"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_gravity="center_horizontal" />
    
        <TextView
            android:id="@+id/pos"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_gravity="center_horizontal"
            android:textSize="10dp" />
    
        <TextView
            android:id="@+id/text"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_gravity="center_horizontal"
            android:textSize="10dp" />
    
        <View
            android:layout_width="20dp"
            android:layout_height="1px"
            android:layout_gravity="center_horizontal"
            android:layout_marginBottom="10dp"
            android:background="@color/cardview_dark_background" />
    </LinearLayout>

![25113785eb544a859f21ce34dee3581a.png][]

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[Android RecyclerView paging_pager_page implements based on AsyncListUtil_kotlin_zhangphil_-CSDN_Android_Paging Library_RecyclerView_RecyclerView_Android_AsyncListUtil_1_Android_Paging Library_RecyclerView_RecyclerView_Android_AsyncListUtil_1_Android Paging 3_kotlin_1_favicon32.ico_https_blog.csdn.net_zhangphil_article_details_130874429]: https://blog.csdn.net/zhangphil/article/details/130874429
[Android_ORM_Room_zhangphil_-CSDN_Android SQLite_Android_ORM_Room_Android_Romm_Android_ORM_Android Room_ORM_Android ORMLite_1_2_Android greenDao_Android Room_ORM_favicon32.ico_https_blog.csdn.net_zhangphil_article_details_78611632]: https://blog.csdn.net/zhangphil/article/details/78611632
[Android_ORM_Room_Embedded_room _zhangphil_-CSDN_Android_ORM_Room_Embedded_1_Android Room_1_User_Java_Java_Android Room_Java_Embedded_Jav_favicon32.ico_https_blog.csdn.net_zhangphil_article_details_78621009]: https://blog.csdn.net/zhangphil/article/details/78621009
[Android Room_AsyncListUtil_RecyclerView_ORM_zhangphil_-CSDN_Android Room_AsyncListUtil_RecyclerView_ORM_AsyncListUtil_RecyclerView_ListView_4_5_Android_ORM_Room_1_2_Android_AsyncListUtil_An_favicon32.ico_https_blog.csdn.net_zhangphil_article_details_78661838]: https://blog.csdn.net/zhangphil/article/details/78661838