（android实战）应用在线版本更新

最新推荐文章于 2019-01-25 21:00:28 发布

转载最新推荐文章于 2019-01-25 21:00:28 发布 · 104 阅读

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Step One 应用系统配置文件----应用版本配置信息

versionCode：版本号

versionName：版本名称

minSdkVersion：最小SDk版本

Step Two 后台验证当前应用版本是否要更新

/*检测应用版本*/
privatevoid CheckAppEdtion()
{
//判断网络连接，如连接
//Step One 判断当前是否有网络连接,
if(!NetWorkUtility.CheckConnection(this))
{
return;
}
//获取网络平台的版本信息
CAppInfo model=AppDataServiceHelper.GetAppEdtionInfo(ProjectConstant.AppID);

//比较版本信息，有新版本弹出对话框

if(model!=null)
{

try {
PackageInfo info =this.getPackageManager().getPackageInfo(this.getPackageName(), 0);
int oldVersion = info.versionCode;
int newVersion = Integer.parseInt(model.Edition);
if(newVersion > oldVersion){
//创建更新对话框，并弹出
AppUpdateDialog.CreateRegisterAlert(this);
}
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}

Step THree 弹出对话框，用户选择是否要更新APK

static ProgressDialog m_Dialog;
static Context m_context=null ;
static AlertDialog appupdatedialog=null;
/*创建查看单题对话框*/
publicstaticvoid CreateRegisterAlert(Context context)
{
m_context=context;
Dialog dialog =new AlertDialog.Builder(context).setTitle("系统更新")
.setMessage("已有新版本，是否更新？")
.setPositiveButton("确定",new DialogInterface.OnClickListener() {
publicvoid onClick(DialogInterface dialog, int which) {
m_Dialog=ProgressDialog.show(m_context, "请等待...", "正在更新，请稍后...",true);
mRegsiterHandler.sleep(1000);

}
})
.setNegativeButton("取消", new DialogInterface.OnClickListener() {
publicvoid onClick(DialogInterface dialog, int which) {

}
}).create();
dialog.show();

}

Step four 下载APK，并更新应用版本

/*
     *定时注册程序
     * */
    private static RegsiterHandler mRegsiterHandler = new RegsiterHandler();
    
   static  class RegsiterHandler extends Handler {

        @Override
        public void handleMessage(Message msg) {
            try{
                String url="http://xx.xx.xx.xx";
                HttpClient client = new DefaultHttpClient();     
                HttpGet get = new HttpGet(url);     
                HttpResponse response;     
                
                 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(), "test.apk");     
                        fileOutputStream = new FileOutputStream(file);     
                       
     
                        byte[] buf = new byte[1024];     
                        int ch = -1;     
                        while ((ch = is.read(buf)) != -1) {     
                            fileOutputStream.write(buf, 0, ch);     
                        }     
     
                    }     
                    fileOutputStream.flush();     
                    if (fileOutputStream != null) {     
                        fileOutputStream.close();     
                    }  
                    
            }
             catch(Exception ex)
              {
                
               }
            finally{
                m_Dialog.cancel();
            }
            install();
            
        }
        public void sleep(long delayMillis) {
            this.removeMessages(0);
            sendMessageDelayed(obtainMessage(0), delayMillis);
        }
    };
   
    
    private static void install() {       
        Intent i = new Intent();   
        //i.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);     
        i.setAction(Intent.ACTION_VIEW);       
        i.setDataAndType(Uri.fromFile(new File("/sdcard/test.apk")),       
                "application/vnd.android.package-archive");       
        m_context.startActivity(i);     
        //finish();   
    }