Java tutorial
/* Licensed to the Apache Software Foundation (ASF) under one or more contributor license agreements. See the NOTICE file distributed with this work for additional information regarding copyright ownership. The ASF licenses this file to you under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License. */ package com.phonegap.goldmaster; import java.io.File; import java.io.FileOutputStream; import java.io.IOException; import java.io.InputStream; import android.app.AlertDialog; import android.app.Dialog; import android.app.ProgressDialog; import android.content.DialogInterface; import android.content.Intent; import android.net.Uri; import android.os.Bundle; import android.os.Environment; import android.os.Handler; import android.os.Message; import android.util.Log; import org.apache.cordova.*; import org.apache.http.HttpEntity; import org.apache.http.HttpResponse; import org.apache.http.client.ClientProtocolException; import org.apache.http.client.HttpClient; import org.apache.http.client.methods.HttpGet; import org.apache.http.impl.client.DefaultHttpClient; import org.json.JSONObject; public class GoldMaster extends CordovaActivity { private static final String TAG = "Update"; public ProgressDialog pBar; private Handler handler = new Handler(); private int ver = 0; private String mversion = ""; private String mcontent = ""; private String versionName = ""; private String content = ""; private String updateurl = ""; private String apkname = ""; private String mversionname = ""; @Override public void onCreate(Bundle savedInstanceState) { super.setIntegerProperty("loadUrlTimeoutValue", 60000); super.setIntegerProperty("splashscreen", R.drawable.splash); super.onCreate(savedInstanceState); super.init(); // Set by <content src="index.html" /> in config.xml super.loadUrl(Config.getStartUrl()); //super.loadUrl("file:///android_asset/www/index.html"); new Thread(new Runnable() { @Override public void run() { if (getServerVerCode()) { int vercode = UpdateConfig.getVerCode(GoldMaster.this); if (ver > vercode) { Message message = new Message(); message.what = 1; mHandler.sendMessage(message); //doNewVersionUpdate(); } else { //notNewVersionShow(); } } } }).start(); } private Handler mHandler = new Handler() { public void handleMessage(Message msg) { switch (msg.what) { case 1: doNewVersionUpdate(); break; } }; }; private boolean getServerVerCode() { try { String verjson = NetworkTool.getContent(UpdateConfig.UPDATE_SERVER); try { JSONObject obj = new JSONObject(verjson); ver = obj.getInt("v"); mversion = obj.getString("mv"); //mcontent = obj.getString("mc"); versionName = obj.getString("vn"); content = obj.getString("c"); updateurl = obj.getString("u"); apkname = obj.getString("n"); //mversionname = obj.getString("mn"); } catch (Exception e) { //newVerCode = -1; //newVerName = ""; return false; } } catch (Exception e) { Log.e(TAG, e.getMessage()); return false; } return true; } private void notNewVersionShow() { int verCode = UpdateConfig.getVerCode(this); String verName = UpdateConfig.getVerName(this); StringBuffer sb = new StringBuffer(); sb.append(":"); sb.append(verName); sb.append(" Code:"); sb.append(verCode); sb.append(",\n,!"); Dialog dialog = new AlertDialog.Builder(GoldMaster.this).setTitle("").setMessage(sb.toString())// .setPositiveButton("", // new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { finish(); } }) .create();// // dialog.show(); } private void doNewVersionUpdate() { StringBuffer sb = new StringBuffer(); sb.append(content); //sb.append(":"); //sb.append(verName); //sb.append(", :"); //sb.append(versionName); //sb.append(", ?"); Dialog dialog = new AlertDialog.Builder(GoldMaster.this).setTitle("").setMessage(sb.toString()) // .setPositiveButton("", // new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { pBar = new ProgressDialog(GoldMaster.this); pBar.setTitle(""); pBar.setMessage("..."); pBar.setProgressStyle(ProgressDialog.STYLE_SPINNER); downFile(updateurl); } }) .setNegativeButton("", new DialogInterface.OnClickListener() { public void onClick(DialogInterface dialog, int whichButton) { // "" //finish(); } }).create();// // dialog.show(); } void downFile(final String url) { pBar.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(), apkname); fileOutputStream = new FileOutputStream(file); byte[] buf = new byte[1024]; int ch = -1; int count = 0; while ((ch = is.read(buf)) != -1) { fileOutputStream.write(buf, 0, ch); count += ch; if (length > 0) { } } } fileOutputStream.flush(); if (fileOutputStream != null) { fileOutputStream.close(); } down(); } catch (ClientProtocolException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } } }.start(); } void down() { handler.post(new Runnable() { public void run() { pBar.cancel(); update(); } }); } void update() { Intent intent = new Intent(Intent.ACTION_VIEW); intent.setDataAndType(Uri.fromFile(new File(Environment.getExternalStorageDirectory(), apkname)), "application/vnd.android.package-archive"); startActivity(intent); } }