Android版本检测/自动更新

曾经用到过的一个Android工具类，版本检测、自动更新。通用性差，权当笔记。

package com.hiyo.game.pdk.tool; import java.io.File; import java.io.FileOutputStream; import java.io.InputStream; import java.net.URL; import java.net.URLConnection; import android.app.Activity; import android.app.AlertDialog; import android.app.ProgressDialog; import android.content.Context; import android.content.DialogInterface; import android.content.Intent; import android.content.pm.PackageInfo; import android.content.pm.PackageManager.NameNotFoundException; import android.net.ConnectivityManager; import android.net.NetworkInfo; import android.net.Uri; import android.util.Log; import android.webkit.URLUtil; import com.hiyo.game.pdk.activity.R; /** * Android AutoUpdate. * * lazybone/2010.08.20 * * 1.Set apkUrl. * * 2.check(). * * 3.add delFile() method in resume()/onPause(). */ public class MyAutoUpdate { public Activity activity = null; public int versionCode = 0; public String versionName = ""; private static final String TAG = "AutoUpdate"; private String currentFilePath = ""; private String currentTempFilePath = ""; private String fileEx = ""; private String fileNa = ""; private String strURL = "http://127.0.0.1:81/ApiDemos.apk"; private ProgressDialog dialog; public MyAutoUpdate(Activity activity) { this.activity = activity; getCurrentVersion(); } public void check() { if (isNetworkAvailable(this.activity) == false) { return; } if (true) {// Check version. showUpdateDialog(); } } public static boolean isNetworkAvailable(Context ctx) { try { ConnectivityManager cm = (ConnectivityManager) ctx .getSystemService(Context.CONNECTIVITY_SERVICE); NetworkInfo info = cm.getActiveNetworkInfo(); return (info != null && info.isConnected()); } catch (Exception e) { e.printStackTrace(); return false; } } public void showUpdateDialog() { @SuppressWarnings("unused") AlertDialog alert = new AlertDialog.Builder(this.activity) .setTitle("Title") .setIcon(R.drawable.icon) .setMessage("Update or not?") .setPositiveButton("Update", new DialogInterface.OnClickListener() { public void onClick(DialogInterface dialog, int which) { downloadTheFile(strURL); showWaitDialog(); } }) .setNegativeButton("Cancel", new DialogInterface.OnClickListener() { public void onClick(DialogInterface dialog, int which) { dialog.cancel(); } }).show(); } public void showWaitDialog() { dialog = new ProgressDialog(activity); dialog.setMessage("Waitting for update..."); dialog.setIndeterminate(true); dialog.setCancelable(true); dialog.show(); } public void getCurrentVersion() { try { PackageInfo info = activity.getPackageManager().getPackageInfo( activity.getPackageName(), 0); this.versionCode = info.versionCode; this.versionName = info.versionName; } catch (NameNotFoundException e) { e.printStackTrace(); } } private void downloadTheFile(final String strPath) { fileEx = strURL.substring(strURL.lastIndexOf(".") + 1, strURL.length()) .toLowerCase(); fileNa = strURL.substring(strURL.lastIndexOf("/") + 1, strURL.lastIndexOf(".")); try { if (strPath.equals(currentFilePath)) { doDownloadTheFile(strPath); } currentFilePath = strPath; Runnable r = new Runnable() { public void run() { try { doDownloadTheFile(strPath); } catch (Exception e) { Log.e(TAG, e.getMessage(), e); } } }; new Thread(r).start(); } catch (Exception e) { e.printStackTrace(); } } private void doDownloadTheFile(String strPath) throws Exception { Log.i(TAG, "getDataSource()"); if (!URLUtil.isNetworkUrl(strPath)) { Log.i(TAG, "getDataSource() It's a wrong URL!"); } else { URL myURL = new URL(strPath); URLConnection conn = myURL.openConnection(); conn.connect(); InputStream is = conn.getInputStream(); if (is == null) { throw new RuntimeException("stream is null"); } File myTempFile = File.createTempFile(fileNa, "." + fileEx); currentTempFilePath = myTempFile.getAbsolutePath(); FileOutputStream fos = new FileOutputStream(myTempFile); byte buf[] = new byte[128]; do { int numread = is.read(buf); if (numread <= 0) { break; } fos.write(buf, 0, numread); } while (true); Log.i(TAG, "getDataSource() Download ok..."); dialog.cancel(); dialog.dismiss(); openFile(myTempFile); try { is.close(); } catch (Exception ex) { Log.e(TAG, "getDataSource() error: " + ex.getMessage(), ex); } } } private void openFile(File f) { Intent intent = new Intent(); intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK); intent.setAction(android.content.Intent.ACTION_VIEW); String type = getMIMEType(f); intent.setDataAndType(Uri.fromFile(f), type); activity.startActivity(intent); } public void delFile() { Log.i(TAG, "The TempFile(" + currentTempFilePath + ") was deleted."); File myFile = new File(currentTempFilePath); if (myFile.exists()) { myFile.delete(); } } private String getMIMEType(File f) { String type = ""; String fName = f.getName(); String end = fName .substring(fName.lastIndexOf(".") + 1, fName.length()) .toLowerCase(); if (end.equals("m4a") || end.equals("mp3") || end.equals("mid") || end.equals("xmf") || end.equals("ogg") || end.equals("wav")) { type = "audio"; } else if (end.equals("3gp") || end.equals("mp4")) { type = "video"; } else if (end.equals("jpg") || end.equals("gif") || end.equals("png") || end.equals("jpeg") || end.equals("bmp")) { type = "image"; } else if (end.equals("apk")) { type = "application/vnd.android.package-archive"; } else { type = "*"; } if (end.equals("apk")) { } else { type += "/*"; } return type; } }

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