fresco的使用教程

1.加载依赖

   api 'org.xutils:xutils:3.5.0'

2.创建一个myapplication

public class MyApplication extends Application {
    @Override
    public void onCreate() {
        super.onCreate();
        Fresco.initialize(this);
    }
}

3.网络权限

 <manifest
    ...
    >
    <uses-permission android:name="android.permission.INTERNET" />
    <application
      ...
      android:label="@string/app_name"
      android:name=".MyApplication"
      >
      ...
    </application>
    ...
  </manifest>

4.布局的命名空间

<!-- 其他元素-->
<LinearLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:fresco="http://schemas.android.com/apk/res-auto"
    android:layout_height="match_parent"
    android:layout_width="match_parent">

5.布局文件

<com.facebook.drawee.view.SimpleDraweeView
    android:id="@+id/my_image_view"
    android:layout_width="130dp"
    android:layout_height="130dp"
    fresco:placeholderImage="@drawable/my_drawable"
  />

6.直接使用

Uri uri = Uri.parse("https://raw.githubusercontent.com/facebook/fresco/gh-pages/static/logo.png");
SimpleDraweeView draweeView = (SimpleDraweeView) findViewById(R.id.my_image_view);
draweeView.setImageURI(uri);

基本直接copy官网的，更多使用看官网

https://www.fresco-cn.org/docs/getting-started.html