Android最新Glide 4.0使用简介

偏执的太偏执、 2024-02-18 14:35 57阅读 0赞

**Android最新Glide 4.0使用简介**

Glide自v3.0到v4.0使用，发生了一些比较大的改变，使用方式和编程模型有了新的变化，这些变化，使得Glide的功能更加强大，性能更加优良，提供了开放的编程接口，便于开发者自定制，以适应自有项目的定制化开发。  
本例给出一些最新Android Glide 4.0的新变化、新模型的简单使用方式。  
写一个简单垂直线性布局：

<?xml version="1.0" encoding="utf-8"?>
    <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
        xmlns:tools="http://schemas.android.com/tools"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:orientation="vertical"
        tools:context="zhangphil.phildemo.MainActivity">
    
        <ImageView
            android:id="@+id/image1"
            android:layout_width="100dp"
            android:layout_height="100dp" />
    
        <ImageView
            android:id="@+id/image2"
            android:layout_width="100dp"
            android:layout_height="100dp" />
    
        <ImageView
            android:id="@+id/image3"
            android:layout_width="100dp"
            android:layout_height="100dp" />
    
        <ImageView
            android:id="@+id/image4"
            android:layout_width="100dp"
            android:layout_height="100dp" />
    
    </LinearLayout>

测试的MainActivity.java，在这里面有四个不同的新版Glide 4.0使用方式：

package zhangphil.phildemo;
    
    import android.graphics.drawable.Drawable;
    import android.support.annotation.Nullable;
    import android.support.v7.app.AppCompatActivity;
    import android.os.Bundle;
    import android.widget.ImageView;
    
    import com.bumptech.glide.Glide;
    import com.bumptech.glide.Priority;
    import com.bumptech.glide.RequestBuilder;
    import com.bumptech.glide.load.DataSource;
    import com.bumptech.glide.load.engine.DiskCacheStrategy;
    import com.bumptech.glide.load.engine.GlideException;
    import com.bumptech.glide.load.resource.drawable.DrawableTransitionOptions;
    import com.bumptech.glide.request.RequestListener;
    import com.bumptech.glide.request.RequestOptions;
    import com.bumptech.glide.request.target.Target;
    
    public class MainActivity extends AppCompatActivity {
        private String url = "https://www.baidu.com/img/bd_logo1.png";
    
        @Override
        protected void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            setContentView(R.layout.activity_main);
    
            ImageView image1 = (ImageView) findViewById(R.id.image1);
            ImageView image2 = (ImageView) findViewById(R.id.image2);
            ImageView image3 = (ImageView) findViewById(R.id.image3);
            ImageView image4 = (ImageView) findViewById(R.id.image4);
    
            load1(image1);
            load2(image2);
            load3(image3);
            load4(image4);
        }
    
        private void load1(ImageView image) {
            Glide.with(this)
                    .load(url)
                    .apply(new RequestOptions().circleCrop().placeholder(R.mipmap.ic_launcher))
                    .transition(new DrawableTransitionOptions().crossFade(2000))
                    .into(image);
        }
    
        private void load2(ImageView image) {
            RequestOptions options = new RequestOptions()
                    .centerCrop()
                    .placeholder(R.mipmap.ic_launcher_round)
                    .error(android.R.drawable.stat_notify_error)
                    .priority(Priority.HIGH)
                    //.skipMemoryCache(true)
                    .diskCacheStrategy(DiskCacheStrategy.AUTOMATIC);
    
            Glide.with(this)
                    .load(url)
                    .apply(options)
                    .into(image);
        }
    
        private void load3(ImageView image) {
            Glide.with(this)
                    .load(url)
                    .listener(new RequestListener<Drawable>() {
                        @Override
                        public boolean onLoadFailed(@Nullable GlideException e, Object model, Target<Drawable> target, boolean isFirstResource) {
                            return false;
                        }
    
                        @Override
                        public boolean onResourceReady(Drawable resource, Object model, Target<Drawable> target, DataSource dataSource, boolean isFirstResource) {
                            return false;
                        }
                    })
                    .apply(new RequestOptions().centerInside())
                    .thumbnail(Glide.with(this).load(R.mipmap.ic_launcher))
                    .into(image);
        }
    
        private void load4(ImageView image) {
            RequestBuilder<Drawable> mRequestBuilder = Glide.with(this).load(url);
    
            mRequestBuilder.listener(new RequestListener<Drawable>() {
                @Override
                public boolean onLoadFailed(@Nullable GlideException e, Object model, Target<Drawable> target, boolean isFirstResource) {
                    return false;
                }
    
                @Override
                public boolean onResourceReady(Drawable resource, Object model, Target<Drawable> target, DataSource dataSource, boolean isFirstResource) {
                    return false;
                }
            }).transition(new DrawableTransitionOptions().crossFade(2000))
                    .apply(new RequestOptions().circleCrop())
                    .into(image);
        }
    }

本例给出了几个不同的方式使用新版Glide 4.0加载网络图片，对比这四种方式，可以举一反三变化出更多使用方法。

不要忘了添加读写存储和访问网络的权限：

<uses-permission android:name="android.permission.INTERNET"/>
        <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>

代码运行结果：

![Center][]

附录：

1，Glide在github上的开源项目主页：https://github.com/bumptech/glide

[Center]: https://image.dandelioncloud.cn/pgy_files/images/2024/01/29/e6043cb4836b416a989ee48f0591574c.png