以下代码由PHP200 阿杜整理
package com.example.syzx;
package com.example.syzx;
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.cordova.DroidGap;
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 com.example.syzx.MainActivity;
import com.example.syzx.R;
import android.net.ConnectivityManager;
import android.net.NetworkInfo;
import android.net.Uri;
import android.os.Bundle;
import android.os.Environment;
import android.os.Handler;
import android.os.Message;
import android.os.StrictMode;
import android.annotation.SuppressLint;
import android.app.AlertDialog;
import android.app.Dialog;
import android.app.ProgressDialog;
import android.content.ComponentName;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.pm.PackageInfo;
import android.content.pm.PackageManager;
import android.content.pm.PackageManager.NameNotFoundException;
import android.util.Log;
@SuppressLint({ "HandlerLeak", "NewApi" })
public class MainActivity extends DroidGap {
String jsonurl = "http://192.168.2.100/app/version.js";
String newVerName = "";// 新版本名称
String downurl = "";//下载 地址
int newVerCode = -1;// 新版本号
String UPDATE_SERVERAPK = "yhupdate.apk";
ProgressDialog pd = null;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
StrictMode.setThreadPolicy(new StrictMode.ThreadPolicy.Builder().detectDiskReads().detectDiskWrites().detectNetwork().penaltyLog().build());
super.setIntegerProperty("splashscreen", R.drawable.splash);
if(checkNetWorkStatus()){
updateVersion();
super.loadUrl("file:///android_asset/www/index.html", 3000);
//super.loadUrl("file:///android_asset/www/test/index.html", 3000);
}
}
/**
* 检测版本
*/
public void updateVersion() {
if (getServerVer()) {
int verCode = this.getVerCode(this);
if (newVerCode > verCode) {
doNewVersionUpdate();// 更新版本
}
}
}
/**
* 获得版本号
*/
public int getVerCode(Context context) {
int verCode = -1;
try {
String packName = context.getPackageName();
verCode = context.getPackageManager().getPackageInfo(packName, 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 {
String packName = context.getPackageName();
verName = context.getPackageManager().getPackageInfo(packName, 0).versionName;
} catch (NameNotFoundException e) {
Log.e("版本名称获取异常", e.getMessage());
}
return verName;
}
/**
* 检测版本
* @return
* @throws Exception
*/
public String getVerName(){
//获取包名
PackageManager packageManager = getPackageManager();
PackageInfo packInfo = null;
try {
packInfo = packageManager.getPackageInfo(getPackageName(), 0);
} catch (NameNotFoundException e) {
// TODO 自动生成的 catch 块
e.printStackTrace();
}
return packInfo.versionName;
}
/**
* 从服务器端获得版本号与版本名称
*/
public boolean getServerVer() {
try {
URL url = new URL(jsonurl);
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");
downurl = jsonObj.getString("downurl");
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
return true;// 如果这里改为false 则不更新会退出程序
}
return true;
}
/**
* 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(" V");
sb.append(verCode);
sb.append(",发现版本：");
sb.append(newVerName);
sb.append(" V");
sb.append(newVerCode);
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() {
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(downurl);
}
})
.setNegativeButton("暂不更新",
new DialogInterface.OnClickListener() {
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);
}
/**
* check network Status
*
* @return boolean
*/
public boolean checkNetWorkStatus() {
boolean result;
ConnectivityManager cm = (ConnectivityManager) this
.getSystemService(Context.CONNECTIVITY_SERVICE);
NetworkInfo netinfo = cm.getActiveNetworkInfo();
if (netinfo != null && netinfo.isConnected()) { // 当前网络可用
result = true;
} else { // 不可用
new AlertDialog.Builder(MainActivity.this)
.setMessage("检查到没有可用的网络连接,请打开网络连接")
.setPositiveButton("确定",
new DialogInterface.OnClickListener() {
public void onClick(
DialogInterface dialoginterface, int i) {
ComponentName cn = new ComponentName(
"com.android.settings",
"com.android.settings.Settings");
Intent intent = new Intent();
intent.setComponent(cn);
intent.setAction("android.intent.action.VIEW");
startActivity(intent);
finish();
}
}).show();
result = false;
}
return result;
}
}