獲取本地app版本號
PackageManager pkgManager = context.getPackageManager();
PackageInfo info = pkgManager.getPackageInfo(context.getPackageName,0);
String versionName = info.versionName;
int versionCode = info.versionCode;
eg: int versionCode = context.getPackageManager().getPackageInfo("com.bdyl.activity", 0).versionCode;
安裝apk
Intent intent = new Intent(Intent.ACTION_VIEW);
intent.setDataAndType(Uri.fromFile(apkfile),"application/vnd.android.package-archive");
解析version.xml的工具類
<span style="font-size:18px;">package com.bdyl.upgrade;
import java.io.InputStream;
import java.util.HashMap;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
public class ParseXmlService {
public HashMap<String, String> parseXml(InputStream inStream)
throws Exception {
HashMap<String, String> hashMap = new HashMap<String, String>();
// 實例化一個文檔構建器工廠
DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
// 通過文檔構建器工廠獲取一個文檔構建器
DocumentBuilder builder = factory.newDocumentBuilder();
// 通過文檔通過文檔構建器構建一個文檔實例
Document document = builder.parse(inStream);
// 獲取XML文件根節點
Element root = document.getDocumentElement();
// 獲得所有子節點
NodeList childNodes = root.getChildNodes();
for (int j = 0; j < childNodes.getLength(); j++) {
// 遍歷子節點
Node childNode = (Node) childNodes.item(j);
if (childNode.getNodeType() == Node.ELEMENT_NODE) {
// Element childElement = (Element) childNode;
// 版本號
if ("version".equals(childNode.getNodeName())) {
hashMap.put("version", childNode.getFirstChild()
.getNodeValue());
}
// 軟件名稱
else if (("name".equals(childNode.getNodeName()))) {
hashMap.put("name", childNode.getFirstChild()
.getNodeValue());
}
// 下載地址
else if (("url".equals(childNode.getNodeName()))) {
hashMap.put("url", childNode.getFirstChild().getNodeValue());
}
}
}
return hashMap;
}
}
</span>將解析出來的版本號跟本地app版本進行對比，判斷是否需要更新下載
<span style="font-size:18px;">package com.bdyl.upgrade;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;
import java.util.HashMap;
import android.app.AlertDialog;
import android.app.AlertDialog.Builder;
import android.app.Dialog;
import android.content.Context;
import android.content.DialogInterface;
import android.content.DialogInterface.OnClickListener;
import android.content.Intent;
import android.content.pm.PackageManager.NameNotFoundException;
import android.net.Uri;
import android.os.AsyncTask;
import android.os.Environment;
import android.os.Handler;
import android.os.Message;
import android.view.LayoutInflater;
import android.view.View;
import android.widget.ProgressBar;
import android.widget.TextView;
import com.bdyl.activity.R;
import com.bdyl.constance.Logs;
import com.bdyl.utils.ToastUtils;
public class UpdateManager {
private static final int DOWNLOAD = 1;//下載中
private static final int DOWNLOAD_FINISH = 2;//下載結束
private static final int ISUPDATE = 3;//版本不一致
HashMap<String, String> mHashMap;//保存解析的XML信息
private String mSavePath;//下載保存路徑
private int progress;//記錄進度條數量
private boolean cancelUpdate = false;//是否取消更新
private Context mContext;
/* 更新進度條 */
private Dialog mDownloadDialog;
private ProgressBar mProgress;
private TextView mShowProTxt;
private Handler mHandler = new Handler() {
public void handleMessage(Message msg) {
switch (msg.what) {
// 正在下載
case DOWNLOAD:
mProgress.setProgress(progress);// 設置進度條位置
mShowProTxt.setText(progress+"%");//顯示下載進度
break;
case DOWNLOAD_FINISH:
installApk();// 安裝文件
break;
case ISUPDATE:// 版本不一致，彈出更新對話框
showNoticeDialog();
break;
case 4:
ToastUtils.show(
mContext,
mContext.getResources().getString(
R.string.soft_update_no));
break;
}
};
};
public UpdateManager(Context context) {
this.mContext = context;
}
/**
* 檢測軟件更新
*/
public void checkUpdate() {
new Thread(new Runnable() {
@Override
public void run() {
if (isUpdate()) {
// 顯示提示對話框
// showNoticeDialog();
mHandler.sendEmptyMessage(3);
} else {
// ToastUtils.show(mContext,
// mContext.getResources().getString(R.string.soft_update_no));
// mHandler.sendEmptyMessage(4);
}
}
}).start();
}
/**
* 檢查軟件是否有更新版本
*
* @return
*/
private boolean isUpdate() {
// 獲取當前軟件版本
int versionCode = getVersionCode(mContext);
// 從網絡獲取version.xml
InputStream inStream = null;
try {
URL url = new URL("http://121.42.192.251:8080/apk/version.xml");
HttpURLConnection con = (HttpURLConnection) url.openConnection();
con.connect();
inStream = con.getInputStream();
ParseXmlService service = new ParseXmlService();
mHashMap = service.parseXml(inStream);
} catch (MalformedURLException e1) {
e1.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} catch (Exception e) {
e.printStackTrace();
} finally {
try {
if (inStream != null) {
inStream.close();
}
} catch (IOException e) {
e.printStackTrace();
}
}
// 本地模擬
/*
* ParseXmlService service = new ParseXmlService(); InputStream inStream
* = ParseXmlService.class.getClassLoader()
* .getResourceAsStream("version.xml"); try { mHashMap =
* service.parseXml(inStream); } catch (Exception e) {
* e.printStackTrace(); } finally { try { if (inStream != null) {
* inStream.close(); } } catch (IOException e) { e.printStackTrace(); }
* }
*/
// 解析XML文件。 由於XML文件比較小，因此使用DOM方式進行解析
if (null != mHashMap) {
int serviceCode = Integer.valueOf(mHashMap.get("version"));
// 版本判斷
Logs.v("" + versionCode + "<serviceCode: " + serviceCode);
if (serviceCode > versionCode) {
return true;
}
}
return false;
}
/**
* 獲取軟件版本號
*
* @param context
* @return
*/
private int getVersionCode(Context context) {
int versionCode = 0;
try {
// 獲取軟件版本號，對應AndroidManifest.xml下android:versionCode
versionCode = context.getPackageManager().getPackageInfo(
"com.bdyl.activity", 0).versionCode;
} catch (NameNotFoundException e) {
e.printStackTrace();
}
return versionCode;
}
/**
* 顯示軟件更新對話框
*/
private void showNoticeDialog() {
// 構造對話框
AlertDialog.Builder builder = new Builder(mContext);
builder.setTitle(R.string.soft_update_title);
builder.setMessage(R.string.soft_update_info);
// 更新
builder.setPositiveButton(R.string.soft_update_updatebtn,
new OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
dialog.dismiss();
// 顯示下載對話框
showDownloadDialog();
}
});
// 稍後更新
builder.setNegativeButton(R.string.soft_update_later,
new OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
dialog.dismiss();
}
});
Dialog noticeDialog = builder.create();
noticeDialog.show();
}
/**
* 顯示軟件下載對話框
*/
private void showDownloadDialog() {
// 構造軟件下載對話框
AlertDialog.Builder builder = new Builder(mContext);
builder.setTitle(mContext.getResources().getString(
R.string.soft_update_title));
// 給下載對話框增加進度條
LayoutInflater inflater = LayoutInflater.from(mContext);
View v = inflater.inflate(R.layout.dialog_upgrade_layout, null);
mProgress = (ProgressBar) v.findViewById(R.id.upgrade_progress);
mShowProTxt = (TextView) v.findViewById(R.id.upgrade_showprogress_txt);
builder.setView(v);
// 取消更新
builder.setNegativeButton(R.string.cancel, new OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
dialog.dismiss();
// 設置取消狀態
cancelUpdate = true;
}
});
mDownloadDialog = builder.create();
mDownloadDialog.setCanceledOnTouchOutside(false);
mDownloadDialog.show();
// 現在文件
downloadApk();
}
/**
* 下載apk文件
*/
private void downloadApk() {
// 啓動新線程下載軟件
new downloadApkThread().start();
}
/**
* 下載文件線程
*
*/
private class downloadApkThread extends Thread {
@Override
public void run() {
try {
// 判斷SD卡是否存在，並且是否具有讀寫權限
// 獲得存儲卡的路徑
if (!Environment.getExternalStorageState().equals(
Environment.MEDIA_MOUNTED)) {
mSavePath = Environment.getDownloadCacheDirectory()
.toString() + "/";
} else {
mSavePath = Environment.getExternalStorageDirectory()
.toString() + "/";
}
URL url = new URL(mHashMap.get("url"));
// 創建連接
HttpURLConnection conn = (HttpURLConnection) url
.openConnection();
conn.connect();
int length = conn.getContentLength();// 獲取文件大小
// 創建輸入流
InputStream is = conn.getInputStream();
File apkFile = new File(mSavePath, mHashMap.get("name"));
FileOutputStream fos = new FileOutputStream(apkFile, false);
// FileOutputStream fos =
// mContext.openFileOutput(mHashMap.get("name"),
// mContext.MODE_WORLD_WRITEABLE);
int count = 0;
// 緩存
byte buf[] = new byte[1024];
// 寫入到文件中
do {
int numread = is.read(buf);
count += numread;
// 計算進度條位置
progress = (int) (((float) count / length) * 100);
// 更新進度
mHandler.sendEmptyMessage(DOWNLOAD);
if (numread <= 0) {
Logs.v("over....");
// 下載完成
mHandler.sendEmptyMessage(DOWNLOAD_FINISH);
break;
}
// 寫入文件
fos.write(buf, 0, numread);
} while (!cancelUpdate);// 點擊取消就停止下載.
fos.close();
is.close();
// }
} catch (MalformedURLException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} finally {
}
// 取消下載對話框顯示
mDownloadDialog.dismiss();
}
};
/**
* 安裝APK文件
*/
private void installApk() {
File apkfile = new File(mSavePath, mHashMap.get("name"));
Logs.v("installApk." + apkfile.exists() + apkfile.getAbsolutePath());
if (!apkfile.exists()) {
return;
}
// 通過Intent安裝APK文件
Intent intent = new Intent(Intent.ACTION_VIEW);
intent.setDataAndType(Uri.fromFile(apkfile),
"application/vnd.android.package-archive");
/*
* i.setDataAndType(Uri.parse(apkfile.getAbsolutePath()),
* "application/vnd.android.package-archive");
*/
mContext.startActivity(intent);
}
}
</span>xml
<span style="font-size:18px;"><?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical" >
<ProgressBar
android:id="@+id/upgrade_progress"
style="@android:style/Widget.ProgressBar.Horizontal"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_margin="@dimen/x10"
android:indeterminate="false"
android:max="100" />
<TextView
android:id="@+id/upgrade_showprogress_txt"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="center_horizontal" />
</LinearLayout></span>
