安卓高级Fresco图片框架的时候

时间：2022-10-05 13:49:48

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);

    }

}

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