fresco图片框架的应用

程序员文章站 2024-03-17 09:27:04

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1.添加依赖
implementation ‘com.facebook.fresco:fresco:1.11.0’
// 支持 GIF 动图，需要添加
implementation ‘com.facebook.fresco:animated-gif:1.10.0’
// 支持 WebP （动图），需要添加
implementation ‘com.facebook.fresco:animated-webp:1.10.0’
// 仅支持 WebP 静态图，需要添加
implementation ‘com.facebook.fresco:webpsupport:1.11.0’

2.在加载图片之前，你必须初始化Fresco类，你只需要调用Fresco.initialize一次即可完成初始化，在 Application 里面做这件事再适合不过了

public class MyApplication extends Application {
@Override
public void onCreate() {
super.onCreate();
Fresco.initialize(this);
}
}
3.指定你的 Application 类
android:name=".MyApplication"
4.不要忘记加网络权限

main页面
public class MainActivity extends AppCompatActivity {

private SimpleDraweeView sim;
private String url = "https://img3.duitang.com/uploads/item/201605/14/20160514165650_RHr3n.gif";

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    initView();
    /*Uri uri = Uri.parse("https://img01.sogoucdn.com/net/a/04/link?url=http%3A%2F%2Fimg04.sogoucdn.com%2Fapp%2Fa%2F100520024%2F8a5cac4b4c8819b2b7b3014f952409be&appid=122");*/
    /*sim.setImageURI(uri);*/

    //创建builder对象  --  进度条
    /*GenericDraweeHierarchyBuilder builder = new GenericDraweeHierarchyBuilder(getResources());
    GenericDraweeHierarchy hierarchy = builder.setProgressBarImage(new ProgressBarDrawable()).build();
    sim.setHierarchy(hierarchy);
    sim.setImageURI(uri);*/


    //渐进
   /* AbstractDraweeController request = Fresco.newDraweeControllerBuilder()
            .setUri(url)
            .setAutoPlayAnimations(true)
            .setTapToRetryEnabled(true)
            .build();

    sim.setController(request);*/
}

private void initView() {
    sim = (SimpleDraweeView) findViewById(R.id.sim);
}

}

xml页面
SimpleDraweeView 显示（view）图片
<com.facebook.drawee.view.SimpleDraweeView
android:layout_width=“100dp”
android:layout_height=“100dp”
android:id="@+id/sim"
app:failureImage="@mipmap/ic_launcher"
app:retryImage="@mipmap/ic_launcher_round"
app:placeholderImage="@drawable/ic_launcher_background"
app:roundAsCircle=“true”
app:fadeDuration="5000 />

渐进式JPEG网址
https://blog.csdn.net/Jonly_W/article/details/80244458
使用Fresco网址
https://www.fresco-cn.org/docs/getting-started.html

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fresco图片框架的应用