自动检查更新APK代码,Java代码库,德仔网

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【Java】自动检查更新APK
作者:癫狂俗人 / 发布于2014/10/14/ 588

	package com.tutor.update;
	
	import java.io.ByteArrayOutputStream;
	import java.io.InputStream;
	import java.net.HttpURLConnection;
	import java.net.URL;
	
	import org.json.JSONException;
	import org.json.JSONObject;
	
	import android.app.Activity;
	import android.content.pm.PackageManager.NameNotFoundException;
	import android.os.Bundle;
	import android.os.Handler;
	import android.os.Message;
	import android.widget.Toast;
	
	public class MainAcitivity extends Activity {
	 int NewVerCode;
	 int localVercode;
	 private JSONObject jsonObject = null;
	 private UpdateManager mUpdateManager;
	
	 private Handler mHandler = new Handler() {
	 public void handleMessage(Message msg) {
	 switch (msg.what) {
	 case 1:
	 checkVersion();
	 break;
	 default:
	 break;
	 }
	 };
	 };
	
	 @Override
	 public void onCreate(Bundle savedInstanceState) {
	 super.onCreate(savedInstanceState);
	 setContentView(R.layout.main);
	
	 getRemoteVersion();
	
	 }
	
	 protected void checkVersion() {
	 try {
	 localVercode = getPackageManager().getPackageInfo(
	 "com.tutor.update", 0).versionCode;
	 // 这里来检测版本是否需要更新
	 if (NewVerCode > localVercode) {
	 mUpdateManager = new UpdateManager(MainAcitivity.this);
	 String downloadUrl = /* jsonObject.getString("downloadUrl") */
	 "http://www.chongchi-tech.com/ccsoft/uploads/app/SmartHome1.0.16_201410091748.apk";
	 String verComment = jsonObject.getString("verComment");
	
	 mUpdateManager.checkUpdateInfo(downloadUrl, verComment);
	 } else {
	 Toast.makeText(this, "已是最新版本无需更新！", 0).show();
	 }
	 } catch (Exception e) {
	 // TODO Auto-generated catch block
	 e.printStackTrace();
	 }
	 }
	
	 public void getRemoteVersion() {
	 new Thread() {
	 public void run() {
	 ByteArrayOutputStream outStream = new ByteArrayOutputStream();
	 byte[] data = new byte[1024];
	 int len = 0;
	 URL url;
	 try {
	 url = new URL(
	 "http://www.chongchi-tech.com/ccsoft/uploads/app/updateInfo.txt");
	 HttpURLConnection conn = (HttpURLConnection) url
	 .openConnection();
	 InputStream inStream = conn.getInputStream();
	 while ((len = inStream.read(data)) != -1) {
	 outStream.write(data, 0, len);
	 }
	 inStream.close();
	 String result = new String(outStream.toByteArray(), "GBK");// 通过out.Stream.toByteArray获取到写的数据
	 jsonObject = new JSONObject(result);
	 NewVerCode = jsonObject.getInt("verCode");
	
	 Message msg = new Message();
	 msg.what = 1;
	 mHandler.sendMessage(msg);
	 } catch (Exception e) {
	 // TODO Auto-generated catch block
	 e.printStackTrace();
	 }
	 };
	 }.start();
	 }
	
	}

	

	

	

	package com.tutor.update;
	
	import java.io.ByteArrayOutputStream;
	import java.io.File;
	import java.io.FileOutputStream;
	import java.io.IOException;
	import java.io.InputStream;
	import java.net.HttpURLConnection;
	import java.net.MalformedURLException;
	import java.net.URL;
	
	import org.apache.http.HttpResponse;
	
	import android.app.AlertDialog;
	import android.app.Dialog;
	import android.app.AlertDialog.Builder;
	import android.content.Context;
	import android.content.DialogInterface;
	import android.content.Intent;
	import android.content.DialogInterface.OnClickListener;
	import android.net.Uri;
	import android.os.Handler;
	import android.os.Message;
	import android.view.LayoutInflater;
	import android.view.View;
	import android.widget.ProgressBar;
	import android.widget.Toast;
	
	public class UpdateManager {
	
	 private Context mContext;
	
	 // 提示语
	 private String updateMsg = "";
	
	 // 返回的安装包url
	 private String apkUrl = "";
	
	 private Dialog noticeDialog;
	
	 private Dialog downloadDialog;
	 /* 下载包安装路径 */
	 private static final String savePath = "/sdcard/updatedemo/";
	
	 private static final String saveFileName = savePath
	 + "UpdateDemoRelease.apk";
	
	 /* 进度条与通知ui刷新的handler和msg常量 */
	 private ProgressBar mProgress;
	
	 private static final int DOWN_UPDATE = 1;
	
	 private static final int DOWN_OVER = 2;
	
	 private int progress;
	
	 private Thread downLoadThread;
	
	 private boolean interceptFlag = false;
	
	 private Handler mHandler = new Handler() {
	 public void handleMessage(Message msg) {
	 switch (msg.what) {
	 case DOWN_UPDATE:
	 mProgress.setProgress(progress);
	 break;
	 case DOWN_OVER:
	 downloadDialog.cancel();
	 installApk();
	 break;
	 default:
	 break;
	 }
	 };
	 };
	
	 public UpdateManager(Context context) {
	 this.mContext = context;
	 }
	
	 // 外部接口让主Activity调用
	 public void checkUpdateInfo(String apkUrl, String updateMsg) {
	 this.apkUrl = apkUrl;
	 this.updateMsg = updateMsg;
	 showNoticeDialog();
	 }
	
	 private void showNoticeDialog() {
	 AlertDialog.Builder builder = new Builder(mContext);
	 builder.setTitle("软件版本更新");
	 builder.setMessage(updateMsg);
	 builder.setPositiveButton("下载", new OnClickListener() {
	 @Override
	 public void onClick(DialogInterface dialog, int which) {
	 dialog.dismiss();
	 showDownloadDialog();
	 }
	 });
	 builder.setNegativeButton("以后再说", new OnClickListener() {
	 @Override
	 public void onClick(DialogInterface dialog, int which) {
	 dialog.dismiss();
	 }
	 });
	 noticeDialog = builder.create();
	 noticeDialog.show();
	 }
	
	 private void showDownloadDialog() {
	 AlertDialog.Builder builder = new Builder(mContext);
	 builder.setTitle("软件版本更新");
	
	 final LayoutInflater inflater = LayoutInflater.from(mContext);
	 View v = inflater.inflate(R.layout.progress, null);
	 mProgress = (ProgressBar) v.findViewById(R.id.progress);
	
	 builder.setView(v);
	 builder.setCancelable(false);
	 builder.setNegativeButton("取消", new OnClickListener() {
	 @Override
	 public void onClick(DialogInterface dialog, int which) {
	 dialog.dismiss();
	 interceptFlag = true;
	 }
	 });
	 downloadDialog = builder.create();
	 downloadDialog.show();
	
	 downloadApk();
	 }
	
	 private Runnable mdownApkRunnable = new Runnable() {
	 @Override
	 public void run() {
	 try {
	 URL url = new URL(apkUrl);
	
	 HttpURLConnection conn = (HttpURLConnection) url
	 .openConnection();
	 conn.connect();
	 int length = conn.getContentLength();
	 InputStream is = conn.getInputStream();
	
	 File file = new File(savePath);
	 if (!file.exists()) {
	 file.mkdir();
	 }
	 String apkFile = saveFileName;
	 File ApkFile = new File(apkFile);
	 FileOutputStream fos = new FileOutputStream(ApkFile);
	
	 int count = 0;
	 byte buf[] = new byte[1024];
	
	 do {
	 int numread = is.read(buf);
	 count += numread;
	 progress = (int) (((float) count / length) * 100);
	 // 更新进度
	 mHandler.sendEmptyMessage(DOWN_UPDATE);
	 if (numread <= 0) {
	 // 下载完成通知安装
	 mHandler.sendEmptyMessage(DOWN_OVER);
	 break;
	 }
	 fos.write(buf, 0, numread);
	 } while (!interceptFlag);// 点击取消就停止下载.
	
	 fos.close();
	 is.close();
	 } catch (MalformedURLException e) {
	 e.printStackTrace();
	 } catch (IOException e) {
	 e.printStackTrace();
	 }
	
	 }
	 };
	
	 /**
	 * 下载apk
	 *
	 * @param url
	 */
	
	 private void downloadApk() {
	 downLoadThread = new Thread(mdownApkRunnable);
	 downLoadThread.start();
	 }
	
	 /**
	 * 安装apk
	 *
	 * @param url
	 */
	 private void installApk() {
	 File apkfile = new File(saveFileName);
	 if (!apkfile.exists()) {
	 return;
	 }
	 Intent i = new Intent(Intent.ACTION_VIEW);
	 i.setDataAndType(Uri.parse("file://" + apkfile.toString()),
	 "application/vnd.android.package-archive");
	 mContext.startActivity(i);
	
	 }
	
	}
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