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.DialogInterface;
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(""
);
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)
.setTitle("软件更新"
)
.setMessage(sb.toString())
.setPositiveButton("确定",
new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog,
int which) {
// TODO Auto-generated method stub
finish();
}
}).create();
dialog.show();
}
/**
* 更新版本
*/
public void doNewVersionUpdate(){
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(",发现版本："
);
sb.append(newVerName);
sb.append(" Code:"
);
sb.append(verCode);
sb.append(",是否更新"
);
Dialog dialog =
new AlertDialog.Builder(
this)
.setTitle("软件更新"
)
.setMessage(sb.toString())
.setPositiveButton("更新",
new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog,
int which) {
// TODO Auto-generated method stub
pd =
new ProgressDialog(MainActivity.
this);
pd.setTitle("正在下载"
);
pd.setMessage("请稍后。。。"
);
pd.setProgressStyle(ProgressDialog.STYLE_SPINNER);
downFile(""
);
}
})
.setNegativeButton("暂不更新",
new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog,
int which) {
// TODO Auto-generated method stub
finish();
}
}).create();
//显示更新框
dialog.show();
}
/**
* 下载apk
*/
public void downFile(
final String url){
pd.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(),UPDATE_SERVERAPK);
fileOutputStream =
new FileOutputStream(file);
byte[] b =
new byte[1024
];
int charb = -1
;
int count = 0
;
while((charb = is.read(b))!=-1
){
fileOutputStream.write(b, 0
, charb);
count +=
charb;
}
}
fileOutputStream.flush();
if(fileOutputStream!=
null){
fileOutputStream.close();
}
down();
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}.start();
}
Handler handler =
new Handler() {
@Override
public void handleMessage(Message msg) {
super.handleMessage(msg);
pd.cancel();
update();
}
};
/**
* 下载完成，通过handler将下载对话框取消
*/
public void down(){
new Thread(){
public void run(){
Message message =
handler.obtainMessage();
handler.sendMessage(message);
}
}.start();
}
/**
* 安装应用
*/
public void update(){
Intent intent =
new Intent(Intent.ACTION_VIEW);
intent.setDataAndType(Uri.fromFile(new File(Environment.getExternalStorageDirectory(),UPDATE_SERVERAPK))
, "application/vnd.android.package-archive"
);
startActivity(intent);
}
}
