Fresco—图片加载框架的简单使用

先在Application文件中注册

public class App extends Application {
    @Override
    public void onCreate() {
        super.onCreate();
        //Fresco的初始化

        //磁盘缓存的配置
        DiskCacheConfig diskCacheConfig = DiskCacheConfig.newBuilder(this)
                .setBaseDirectoryPath(getCacheDir())
                .setMaxCacheSize(8*1024*1024)
                .build();
        //把磁盘缓存的设置，设置到三级缓存中
        ImagePipelineConfig pipelineConfig = ImagePipelineConfig.newBuilder(this)
                .setMainDiskCacheConfig(diskCacheConfig)
                .build();
        Fresco.initialize(this,pipelineConfig);
    }
}

MainActivity

public class MainActivity extends AppCompatActivity {

    @BindView(R.id.sdv_icon)
    SimpleDraweeView sdvIcon;
    @BindView(R.id.sdv_gifIcon)
    SimpleDraweeView sdvGifIcon;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        ButterKnife.bind(this);

        //加载Fresco图片
        Uri imageUri = Uri.parse("https://ws1.sinaimg.cn/large/0065oQSqgy1fze94uew3jj30qo10cdka.jpg");
        //圆角效果
        RoundingParams roundingParams = RoundingParams.fromCornersRadius(20f);
        sdvIcon.getHierarchy().setRoundingParams(roundingParams);
        //加载显示时的进度条
        sdvIcon.getHierarchy().setProgressBarImage(new ProgressBarDrawable());
        sdvIcon.setImageURI(imageUri);
        //加载Fresco动图
        Uri gifUri = Uri.parse("https://ww1.sinaimg.cn/large/0073sXn7ly1fze96rdfhmg308w0ft7wh");
        DraweeController controller = Fresco.newDraweeControllerBuilder()
                .setUri(gifUri)
                .setAutoPlayAnimations(true)
                .build();
        sdvGifIcon.setController(controller);

    }
}

activity_main

<TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Hello World!" />

    <com.facebook.drawee.view.SimpleDraweeView
        android:id="@+id/sdv_icon"
        android:layout_width="100dp"
        android:layout_height="100dp"
        alex:placeholderImage="@mipmap/ic_launcher"/>

    <com.facebook.drawee.view.SimpleDraweeView
        android:id="@+id/sdv_gifIcon"
        android:layout_width="200dp"
        android:layout_height="200dp" />