No 99 · 【android】apk在线升级
现在android开发，一般采用的是CS模式，那么apk的升级，自然而然需要有server端的支持。一般，我们将升级版本以及一个记录升级版本的配置文件（在本文中采用jsonarray格式）放在server端。当Client初始化时，如果检测到server端有更新的版本（读取server的配置文件），则将在server端的升级版本以Http的方式连接，将其下载下来，然后调用android的api进行替换升级。
一、配置文件：
update_version.json
[{"appname":"myapp","apkname":"myapp.apk","verName":1.0,"verCode":1}]
版本的比较，是根据update_version.json中的verCode 以及apk文件中AndroidManifest.xml文件中的定义的版本号：
android:versionCode="1" android:versionName="1.0"
二、初始化时比较版本
//比较服务器版本//在 onCreate函数中调用
if (getServerVerCode()) {
int vercode = Config.getVerCode(this);
if (newVerCode > vercode) {
doNewVersionUpdate();//发现新版本更新
} else {
Toast.makeText(getApplicationContext(),"目前是最新版本，感谢您的支持",Toast.LENGTH_LONG).show();//没有新版本
}
}//子函数，获取版本号
private boolean getServerVerCode() {
try {
//取得服务器地址和接口文件名
String verjson = NetworkTool.getContent(Config.UPDATE_SERVER
+ Config.UPDATE_VERJSON);
JSONArray array = new JSONArray(verjson);
if (array.length() > 0) {
JSONObject obj = array.getJSONObject(0);
try {
newVerCode = Integer.parseInt(obj.getString("verCode"));
newVerName = obj.getString("verName");
} catch (Exception e) {
newVerCode = -1;
newVerName = "";
return false;
}
}
} catch (Exception e) {
Log.e(TAG, e.getMessage());
return false;
}
return true;
}
//子函数，若是有新版本，则
private void doNewVersionUpdate() {
int verCode = Config.getVerCode(this);
String verName = Config.getVerName(this);
StringBuffer sb = new StringBuffer();
sb.append("当前版本:");
sb.append(verName);
sb.append(" Code:");
sb.append(verCode);
sb.append(", 发现新版本");
sb.append(newVerName);
sb.append(" Code:");
sb.append(newVerCode);
sb.append(",是否更新?");
Dialog dialog = new AlertDialog.Builder(UpdateActivity.this)
.setTitle("软件更新")
.setMessage(sb.toString())
// 设置内容
.setPositiveButton("更新",// 设置确定按钮
new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog,
int which) {
pBar = new ProgressDialog(UpdateActivity.this);
pBar.setTitle("正在下载");
pBar.setMessage("请稍候...");
pBar.setProgressStyle(ProgressDialog.STYLE_SPINNER);
downFile(Config.UPDATE_SERVER
+ Config.UPDATE_APKNAME);
}
})
.setNegativeButton("暂不更新",
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog,
int whichButton) {
// 点击"取消"按钮之后退出程序
finish();
}
}).create();//创建
// 显示对话框
dialog.show();
}
三、下载并升级
void downFile(final String url) {
pBar.show();
new Thread() {
public void run() {
HttpClient client = new DefaultHttpClient();
HttpGet get = new HttpGet(url);
HttpResponse response;
try {
response = client.execute(get);
HttpEntity entity = response.getEntity();
long length = entity.getContentLength();
InputStream is = entity.getContent();
FileOutputStream fileOutputStream = null;
if (is != null) {
File file = new File(
Environment.getExternalStorageDirectory(),
Config.UPDATE_SAVENAME);
fileOutputStream = new FileOutputStream(file);
byte[] buf = new byte[1024];
int ch = -1;
int count = 0;
while ((ch = is.read(buf)) != -1) {
fileOutputStream.write(buf, 0, ch);
count += ch;
if (length > 0) {
}
}
}
fileOutputStream.flush();
if (fileOutputStream != null) {
fileOutputStream.close();
}
down();
} catch (ClientProtocolException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
}.start();
}
void down() {
handler.post(new Runnable() {
public void run() {
pBar.cancel();
update();
}
});
}
void update() {
Intent intent = new Intent(Intent.ACTION_VIEW);
intent.setDataAndType(Uri.fromFile(new File(Environment
.getExternalStorageDirectory(), Config.UPDATE_SAVENAME)),
"application/vnd.android.package-archive");
startActivity(intent);
}
还有一些细节，没有说出来~
相关文献参考：
http://blog.csdn.net/xjanker2/article/details/6303937
http://blog.csdn.net/muyu114/article/details/6623509
http://blog.csdn.net/w200221626/article/details/6690769
本文转载自：http://www.cnblogs.com/Amandaliu/archive/2011/08/22/2148936.html
Config.java
package Sys.ext;
import Sys.activity.R;
import android.content.Context;
import android.content.pm.PackageManager.NameNotFoundException;
import android.util.Log;
public class Config {
private static final String TAG="Config";
public static final String UPDATE_SERVER = "http://10.20.147.117/jtapp12/";
public static final String UPDATE_APKNAME = "jtapp-12-updateapksamples.apk";
public static final String UPDATE_VERJSON = "ver.json";
public static final String UPDATE_SAVENAME = "updateapksamples.apk";
/**
* get version number
* @param context
* @return
*/
public static int getVerCode(Context context){
int verCode=-1;
try {
verCode=context.getPackageManager().getPackageInfo("Sys.activity", 0).versionCode;
} catch (NameNotFoundException e) {
// TODO: handle exception
Log.e(TAG, e.getMessage());
}
return verCode;
}
/**
* get version number
* @param context
* @return
*/
public static String getVerName(Context context){
String verName="";
try {
verName=context.getPackageManager().getPackageInfo("Sys.activity", 0).versionName;
} catch (NameNotFoundException e) {
// TODO: handle exception
Log.e(TAG, e.getMessage());
}
return verName;
}
/**
* get apkname
* @param context
* @return
*/
public static String getAppName(Context context){
String verName=context.getResources().getText(R.string.app_name).toString();
return verName;
}
}
NetworkTool.java
package Sys.ext;
import java.io.BufferedReader;
import java.io.InputStreamReader;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.params.HttpConnectionParams;
import org.apache.http.params.HttpParams;
public class NetworkTool {
public static String getContent(String url) throws Exception{
StringBuilder sb=new StringBuilder();
HttpClient client=new DefaultHttpClient();
HttpParams httpParams=client.getParams();
//设置网络超时参数
HttpConnectionParams.setConnectionTimeout(httpParams, 3000);
HttpConnectionParams.setSoTimeout(httpParams, 5000);
HttpResponse response=client.execute(new HttpGet(url));
HttpEntity entity=response.getEntity();
if (entity!=null) {
BufferedReader reader=new BufferedReader(new InputStreamReader(entity.getContent(),"UTF-8"),8192);
String line=null;
while((line=reader.readLine())!=null){
sb.append(line+"\n");
}
reader.close();
}
return sb.toString();
}
}
UpdateActivity.java
package Sys.activity;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.DefaultHttpClient;
import org.json.JSONArray;
import org.json.JSONObject;
import Sys.ext.Config;
import Sys.ext.NetworkTool;
import android.app.Activity;
import android.app.AlertDialog;
import android.app.Dialog;
import android.app.ProgressDialog;
import android.content.DialogInterface;
import android.content.Intent;
import android.net.Uri;
import android.os.Bundle;
import android.os.Environment;
import android.os.Handler;
import android.util.Log;
public class UpdateActivity extends Activity{
private static final String TAG="Update";
public ProgressDialog pBar;
private Handler handler=new Handler();
private int newVerCode=0;
private String newVerName="";
@Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
if (getServerVerCode()) {
int vercode=Config.getVerCode(this);
if (newVerCode>vercode) {
doNewVersionUpdate();
}else {
notNewVersionShow();
}
}
}
private boolean getServerVerCode() {
try {
String verjson = NetworkTool.getContent(Config.UPDATE_SERVER
+ Config.UPDATE_VERJSON);
JSONArray array = new JSONArray(verjson);
if (array.length() > 0) {
JSONObject obj = array.getJSONObject(0);
try {
newVerCode = Integer.parseInt(obj.getString("verCode"));
newVerName = obj.getString("verName");
} catch (Exception e) {
newVerCode = -1;
newVerName = "";
return false;
}
}
} catch (Exception e) {
Log.e(TAG, e.getMessage());
return false;
}
return true;
}
private void notNewVersionShow() {
int verCode = Config.getVerCode(this);
String verName = Config.getVerName(this);
StringBuffer sb = new StringBuffer();
sb.append("当前版本:");
sb.append(verName);
sb.append(" Code:");
sb.append(verCode);
sb.append(",/n已是最新版,无需更新!");
Dialog dialog = new AlertDialog.Builder(UpdateActivity.this).setTitle("软件更新")
.setMessage(sb.toString())// 设置内容
.setPositiveButton("确定",// 设置确定按钮
new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog,
int which) {
finish();
}
}).create();// 创建
// 显示对话框
dialog.show();
}
private void doNewVersionUpdate() {
int verCode = Config.getVerCode(this);
String verName = Config.getVerName(this);
StringBuffer sb = new StringBuffer();
sb.append("当前版本:");
sb.append(verName);
sb.append(" Code:");
sb.append(verCode);
sb.append(", 发现新版本:");
sb.append(newVerName);
sb.append(" Code:");
sb.append(newVerCode);
sb.append(", 是否更新?");
Dialog dialog = new AlertDialog.Builder(UpdateActivity.this)
.setTitle("软件更新")
.setMessage(sb.toString())
// 设置内容
.setPositiveButton("更新",// 设置确定按钮
new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog,
int which) {
pBar = new ProgressDialog(UpdateActivity.this);
pBar.setTitle("正在下载");
pBar.setMessage("请稍候...");
pBar.setProgressStyle(ProgressDialog.STYLE_SPINNER);
downFile(Config.UPDATE_SERVER + Config.UPDATE_APKNAME);
}
})
.setNegativeButton("暂不更新",
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog,
int whichButton) {
// 点击"取消"按钮之后退出程序
finish();
}
}).create();// 创建
// 显示对话框
dialog.show();
}
void downFile(final String url) {
pBar.show();
new Thread() {
public void run() {
HttpClient client = new DefaultHttpClient();
HttpGet get = new HttpGet(url);
HttpResponse response;
try {
response = client.execute(get);
HttpEntity entity = response.getEntity();
long length = entity.getContentLength();
InputStream is = entity.getContent();
FileOutputStream fileOutputStream = null;
if (is != null) {
File file = new File(
Environment.getExternalStorageDirectory(),
Config.UPDATE_SAVENAME);
fileOutputStream = new FileOutputStream(file);
byte[] buf = new byte[1024];
int ch = -1;
int count = 0;
while ((ch = is.read(buf)) != -1) {
fileOutputStream.write(buf, 0, ch);
count += ch;
if (length > 0) {
}
}
}
fileOutputStream.flush();
if (fileOutputStream != null) {
fileOutputStream.close();
}
down();
} catch (ClientProtocolException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
}.start();
}
void down() {
handler.post(new Runnable() {
public void run() {
pBar.cancel();
update();
}
});
}
void update() {
Intent intent = new Intent(Intent.ACTION_VIEW);
intent.setDataAndType(Uri.fromFile(new File(Environment
.getExternalStorageDirectory(), Config.UPDATE_SAVENAME)),
"application/vnd.android.package-archive");
startActivity(intent);
}
}