RxDownload

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先导依赖

compile 'zlc.season:rxdownload:1.1.1'

清单文件

<uses-permission android:name="android.permission.INTERNET" /><uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" /><uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />

Activity代码

package com.example.cll.caolilu1508b20171113;import android.os.Bundle;import android.support.v7.app.AppCompatActivity;import android.view.View;import android.widget.Button;import android.widget.ProgressBar;import android.widget.TextView;import rx.Subscriber;import rx.Subscription;import rx.android.schedulers.AndroidSchedulers;import rx.schedulers.Schedulers;import zlc.season.rxdownload.DownloadStatus;import zlc.season.rxdownload.RxDownload;public class Main2Activity extends AppCompatActivity implements View.OnClickListener {    /**     * 下载     */    private Button mXaizai;    /**     * 暂停     */    private Button mZanting;    private ProgressBar mJindu;    /**     * 下载:0%     */    private TextView mTvInfo;    private   String uri = "http://mirror.aarnet.edu.au/pub/TED-talks/911Mothers_2010W-480p.mp4";    private String name="cllshipin";    private String dizhi;    private Subscription subscription;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main2);        initView();    }    private void initView() {        mXaizai = (Button) findViewById(R.id.xaizai);        mXaizai.setOnClickListener(this);        mZanting = (Button) findViewById(R.id.zanting);        mZanting.setOnClickListener(this);        mJindu = (ProgressBar) findViewById(R.id.jindu);        mTvInfo = (TextView) findViewById(R.id.tv_info);    }    @Override    public void onClick(View v) {        switch (v.getId()) {            case R.id.xaizai:                mXaizai.setEnabled(false);                mZanting.setEnabled(true);                subscription = RxDownload.getInstance()                        .maxThread(20)                        .maxRetryCount(5)                        .download(uri,name,dizhi)                        .subscribeOn(Schedulers.io())                        .observeOn(AndroidSchedulers.mainThread())                        .subscribe(new Subscriber<DownloadStatus>() {                            @Override                            public void onCompleted() {                            }                            @Override                            public void onError(Throwable e) {                            }                            @Override                            public void onNext(DownloadStatus downloadStatus) {                                String percent = downloadStatus.getPercent();                                mTvInfo.setText("下载:"+percent);                                long totalSize = downloadStatus.getTotalSize();                                mJindu.setMax((int) totalSize);                                long downloadSize = downloadStatus.getDownloadSize();                                mJindu.setProgress((int) downloadSize);                            }                        });                break;            case R.id.zanting:                mXaizai.setEnabled(true);                mZanting.setEnabled(false);                //...//取消订阅, 即可暂停下载, 若服务端不支持断点续传,下一次下载会重新下载,反之会继续下载                if (subscription != null && !subscription.isUnsubscribed()) {                    subscription.unsubscribe();                }                break;        }    }}布局文件<?xml version="1.0" encoding="utf-8"?><LinearLayout    xmlns:android="http://schemas.android.com/apk/res/android"    xmlns:app="http://schemas.android.com/apk/res-auto"    xmlns:tools="http://schemas.android.com/tools"    android:layout_width="match_parent"    android:layout_height="match_parent"    android:orientation="vertical"    tools:context="com.example.cll.caolilu1508b20171113.Main2Activity">    <TextView        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:text="下载地址"/>    <LinearLayout        android:layout_width="fill_parent"        android:layout_height="wrap_content"        android:orientation="horizontal">        <Button            android:layout_width="wrap_content"            android:layout_height="wrap_content"            android:id="@+id/xaizai"            android:text="下载"            android:onClick="download"/>        <Button            android:layout_width="wrap_content"            android:layout_height="wrap_content"            android:id="@+id/zanting"            android:onClick="pause"            android:text="暂停"/>    </LinearLayout>    <ProgressBar        android:layout_width="fill_parent"        android:layout_height="wrap_content"        android:id="@+id/jindu"        style="@android:style/Widget.ProgressBar.Horizontal"    />    <TextView        android:id="@+id/tv_info"        android:layout_width="fill_parent"        android:layout_height="wrap_content"        android:gravity="center"        android:text="下载:0%" /></LinearLayout>

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