android apk 升级代码

在闪屏中处理升级。
加入两项权限：
style.xml中加入以下代码，去掉标题栏
SplashActivity：
package com.mhm.mySport;import java.io.File;import org.apache.http.Header;import org.json.JSONArray;import org.json.JSONException;import org.json.JSONObject;import com.lidroid.xutils.HttpUtils;import com.lidroid.xutils.exception.HttpException;import com.lidroid.xutils.http.ResponseInfo;import com.lidroid.xutils.http.callback.RequestCallBack;import com.loopj.android.http.AsyncHttpClient;import com.loopj.android.http.JsonHttpResponseHandler;import android.annotation.SuppressLint;import android.app.Activity;import android.app.AlertDialog;import android.content.DialogInterface;import android.content.DialogInterface.OnClickListener;import android.content.Intent;import android.content.pm.PackageInfo;import android.content.pm.PackageManager;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.view.View;import android.widget.TextView;import android.widget.Toast;public class SplashActivity extends Activity {TextView tv_version;TextView tv_progress;String server_v_name;int server_v_code;String server_v_url;String server_v_text;@SuppressLint("HandlerLeak")Handler handler = new Handler(){public void handleMessage(android.os.Message msg) {if(msg.what == 1) {// 可升级uploadDailog();} else if(msg.what == 2) {// Toast.makeText(SplashActivity.this, "当前已是最新版本", Toast.LENGTH_SHORT).show();enterHome();} else {Toast.makeText(SplashActivity.this, "升级时遇到故障", Toast.LENGTH_SHORT).show();}};};@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_splash);tv_version = (TextView) findViewById(R.id.tv_version);tv_version.setText("版本号：" + getLocalVersionName());tv_progress= (TextView) findViewById(R.id.tv_progress);checkVersion();}private void download() {// 判断是否有SD卡且SD卡挂载if(Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED)) {tv_progress.setVisibility(View.VISIBLE);String target = Environment.getExternalStorageDirectory() + "/update.apk";HttpUtils hu = new HttpUtils();hu.download(server_v_url, target, new RequestCallBack() {@Overridepublic void onLoading(long total, long current, boolean isUploading) {super.onLoading(total, current, isUploading);tv_progress.setText("下载进度：" + current / total * 100 + "%");}@Overridepublic void onSuccess(ResponseInfo arg0) {//打开安装界面Intent intent = new Intent(Intent.ACTION_VIEW);intent.addCategory(Intent.CATEGORY_DEFAULT);intent.setDataAndType(Uri.fromFile(arg0.result), "application/vnd.android.package-archive");// 4.0及后续版本，需加此行代码，否则安装完后不进入APP界面intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK); startActivity(intent);}@Overridepublic void onFailure(HttpException arg0, String arg1) {Toast.makeText(SplashActivity.this, "下载失败", Toast.LENGTH_SHORT).show();}});} else {Toast.makeText(SplashActivity.this, "没有SD卡", Toast.LENGTH_SHORT).show();}}/** * 弹出是否更新对话框 */private void uploadDailog() {AlertDialog.Builder builder = new AlertDialog.Builder(this);builder.setTitle("最新版本：" + server_v_name);builder.setMessage(server_v_text);// 不升级不能使用该软件，尽量不用// builder.setCancelable(false);builder.setPositiveButton("立即更新", new OnClickListener() {@Overridepublic void onClick(DialogInterface dialog, int which) {download();}});builder.setNegativeButton("以后再说", new OnClickListener() {@Overridepublic void onClick(DialogInterface dialog, int which) {enterHome();}});builder.setOnCancelListener(new DialogInterface.OnCancelListener() {@Overridepublic void onCancel(DialogInterface dialog) {enterHome();}});builder.show();}private void enterHome() {Intent intent = new Intent(this, HomeActivity.class);startActivity(intent);finish();}private String getLocalVersionName() {PackageManager packageManager = getPackageManager();String versionName = "1.0";//int versionCode = 1;try {PackageInfo packageInfo = packageManager.getPackageInfo(getPackageName(), 0);versionName = packageInfo.versionName;//versionCode = packageInfo.versionCode;} catch (NameNotFoundException e) {e.printStackTrace();}return versionName;}private int getLocalVersionCode() {PackageManager packageManager = getPackageManager();int versionCode = 1;try {PackageInfo packageInfo = packageManager.getPackageInfo(getPackageName(), 0);versionCode = packageInfo.versionCode;} catch (NameNotFoundException e) {e.printStackTrace();}return versionCode;}private void checkVersion() { AsyncHttpClient client = new AsyncHttpClient(); String url = "http://58.216.180.114:7074/upload.json"; client.get(url, new JsonHttpResponseHandler(){@Overridepublic void onSuccess(int statusCode, Header[] headers,JSONObject response) {super.onSuccess(statusCode, headers, response);if (statusCode == 200) {                      //遍历json数组                          try {                              // 获取具体的一个JSONObject对象                              JSONObject obj = response;                            server_v_name = obj.getString("versionName");                            server_v_code = obj.getInt("versionCode");                            server_v_text = obj.getString("versionText");                            server_v_url = obj.getString("url");                                                        Message msg = new Message();                            if(getLocalVersionCode() < server_v_code) {                            msg.what = 1;                            } else {                            msg.what = 2;                            }                            handler.sendMessage(msg);                        } catch (JSONException e) {                              e.printStackTrace();                          }                  }}@Overridepublic void onFailure(int statusCode, Header[] headers,String responseString, Throwable throwable) {super.onFailure(statusCode, headers, responseString, throwable);System.out.println("1");}@Overridepublic void onFailure(int statusCode, Header[] headers,Throwable throwable, JSONArray errorResponse) {super.onFailure(statusCode, headers, throwable, errorResponse);System.out.println("2");}@Overridepublic void onFailure(int statusCode, Header[] headers,Throwable throwable, JSONObject errorResponse) {super.onFailure(statusCode, headers, throwable, errorResponse);Message msg = new Message();msg.what = 0;handler.sendMessage(msg);} });     }@Overrideprotected void onActivityResult(int requestCode, int resultCode, Intent data) {enterHome();super.onActivityResult(requestCode, resultCode, data);} }
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