android自动更新apk版本
截图如下:代码实现如下:
package com.update.apk;
import java.io.BufferedReader;
import java.io.File;
import java.io.FileOutputStream;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;
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.json.JSONArray;
import org.json.JSONObject;
import android.app.Activity;
import android.app.AlertDialog;
import android.app.Dialog;
import android.app.ProgressDialog;
import android.content.Context;
import android.content.DialogInte易做图ce;
import android.content.Intent;
import android.content.pm.PackageManager.NameNotFoundException;
import android.net.Uri;
import android.os.Bundle;
import android.os.Environment;
import android.os.Handler;
import android.os.Message;
import android.util.Log;
public class MainActivity extends Activity {
/** Called when the activity is first created. */
String newVerName = "";//新版本名称
int newVerCode = -1;//新版本号
ProgressDialog pd = null;
String UPDATE_SERVERAPK = "ApkUpdateAndroid.apk";
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
if(getServerVer()){
int verCode = this.getVerCode(this);
if(newVerCode>verCode){
doNewVersionUpdate();//更新版本
}else{
notNewVersionUpdate();//提示已是最新版本
}
}
}
/**
* 获得版本号
*/
public int getVerCode(Context context){
int verCode = -1;
try {
verCode = context.getPackageManager().getPackageInfo("com.update.apk", 0).versionCode;
} catch (NameNotFoundException e) {
// TODO Auto-generated catch block
Log.e("版本号获取异常", e.getMessage());
}
return verCode;
}
/**
* 获得版本名称
*/
public String getVerName(Context context){
String verName = "";
try {
verName = context.getPackageManager().getPackageInfo("com.update.apk", 0).versionName;
} catch (NameNotFoundException e) {
Log.e("版本名称获取异常", e.getMessage());
}
return verName;
}
/**
* 从服务器端获得版本号与版本名称
* @return
*/
public boolean getServerVer(){
try {
URL url = new URL("http://10.0.2.2:8080/ApkUpdateService/ver");
HttpURLConnection httpConnection = (HttpURLConnection) url.openConnection();
httpConnection.setDoInput(true);
httpConnection.setDoOutput(true);
httpConnection.setRequestMethod("GET");
httpConnection.connect();
InputStreamReader reader = new InputStreamReader(httpConnection.getInputStream());
BufferedReader bReader = new BufferedReader(reader);
String json = bReader.readLine();
JSONArray array = new JSONArray(json);
JSONObject jsonObj = array.getJSONObject(0);
newVerCode = Integer.parseInt(jsonObj.getString("verCode"));
newVerName = jsonObj.getString("verName");
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
return false;
}
return true;
}
/**
* 不更新版本
*/
public void notNewVersionUpdate(){
int verCode = this.getVerCode(this);
String verName = this.getVerName(this);
StringBuffer sb = new StringBuffer();
sb.append("当前版本:");
sb.append(verName);
sb.append(" Code:");
sb.append(verCode);
sb.append("\n已是最新版本,无需更新");
Dialog dialog = new AlertDialog.Builder(this)
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补充:移动开发 , Android ,