package com.itheima.xutils;

import java.io.File; import com.lidroid.xutils.HttpUtils; import com.lidroid.xutils.exception.HttpException; import com.lidroid.xutils.http.ResponseInfo; import com.lidroid.xutils.http.callback.RequestCallBack; import android.os.Bundle; import android.app.Activity; import android.view.Menu; import android.view.View; import android.widget.ProgressBar; import android.widget.TextView; import android.widget.Toast; public class MainActivity extends Activity { // xUtils-2.6.14.jar private TextView tv_failure; private TextView tv_progress; private ProgressBar pb; @Override protected void onCreate(Bundle savedInstanceState) { super .onCreate(savedInstanceState); setContentView(R.layout.activity_main); tv_failure = (TextView) findViewById(R.id.tv_failure); tv_progress = (TextView) findViewById(R.id.tv_progress); pb = (ProgressBar) findViewById(R.id.pb); } public void click(View v){ HttpUtils utils = new HttpUtils(); // 文件下载框架，支持断点续传 String fileName = "QQPlayer.exe" ; // 确定下载地址 String path = "http://192.168.13.13:8080/" + fileName; utils.download(path, // 下载地址 "sdcard/QQPlayer.exe", // 文件保存路径 true, // 是否支持断点续传 true, // 是否支持重命名 new RequestCallBack<File> () { // 下载成功后调用 @Override public void onSuccess(ResponseInfo<File> arg0) { Toast.makeText(MainActivity. this, arg0.result.getPath(), 0 ).show(); } // 下载失败调用 @Override public void onFailure(HttpException arg0, String arg1) { // TODO Auto-generated method stub tv_failure.setText(arg1); } @Override public void onLoading( long total, long current, boolean isUploading) { // TODO Auto-generated method stub super .onLoading(total, current, isUploading); pb.setMax(( int )total); pb.setProgress(( int )current); tv_progress.setText(current * 100 / total + "%" ); } }); } } <uses-permission android:name="android.permission.INTERNET"/> <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>