安卓高级Fresco图片框架的时候

Fresco:2015FaceBook推出的 及其强大
支持webp图片格式
和渐进式图片加载

中文文档

使用方法

1. 引入依赖
   点击查看具体教程

2. 基本使用步骤

   1. 在布局中使用其标签 <com.facebook.drawee.view.SimpleDraweeView/>
      注意不能使用包裹内容

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/activity_main"
    android:layout_width="match_parent"
    android:layout_height="match_parent"

    xmlns:fresco="http://schemas.android.com/apk/res-auto"
    android:paddingTop="@dimen/activity_vertical_margin"
    tools:context="com.example.administrator.myapplication.MainActivity">

    <com.facebook.drawee.view.SimpleDraweeView
        android:id="@+id/my_image_view"
        android:layout_width="200dp"
        android:layout_height="200dp"
        fresco:placeholderImage="@mipmap/ic_launcher"
        />
</RelativeLayout>

注意需要初始化:

public class Myappaliction extends Application{

    @Override
    public void onCreate() {
        super.onCreate();

        Fresco.initialize(this);
    }
}

package com.example.administrator.myapplication;

import android.net.Uri;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;

import com.facebook.drawee.backends.pipeline.Fresco;
import com.facebook.drawee.interfaces.DraweeController;
import com.facebook.drawee.view.SimpleDraweeView;
import com.facebook.imagepipeline.request.ImageRequest;
import com.facebook.imagepipeline.request.ImageRequestBuilder;

public class MainActivity extends AppCompatActivity {
    private SimpleDraweeView show_iv;
    private String   path = "http://img.hb.aicdn.com/761f1bce319b745e663fed957606b4b5d167b9bff70a-nfBc9N_fw580";
    private  String  gifPath = "http://img.zcool.cn/community/012f4d5542e7de0000019ae98b8ef1.jpg";


    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        Uri uri = Uri.parse(gifPath);
        //以下方法使用渐进式并直接播放动态图
        show_iv=(SimpleDraweeView) findViewById(R.id.my_image_view);
        ImageRequest request = ImageRequestBuilder.newBuilderWithSource(uri)
                .setProgressiveRenderingEnabled(true)

                .build();
        DraweeController controller = Fresco.newDraweeControllerBuilder()
                .setImageRequest(request)

                .setAutoPlayAnimations(true)//
                .setOldController(show_iv.getController())
                .build();
        show_iv.setController(controller);




    }
}