Android更新帶進度條的通知欄
阿新 • • 發佈：2017-06-11
text linear archive last sys package 初始 麻煩 httputils
在Main中的用到的Global.java
寫的服務實現UpdateService.java
基本上凝視寫的清清楚楚，這當中用到了Xutils開源框架來下載文件。
在網上查詢了下。Android版本號更新通知欄帶進度條，醉了，基本都是復制過來。有的代碼不全，連源代碼下載都沒有。有下載也須要積分，還不能用，真黑心啊！！之前自己也寫過自己定義通知欄Notification，想了還是自己寫吧。
由於在通知欄更新，須要訪問網絡下載。就寫了個服務，在服務中實現了下載個更新。
先看MainActivity代碼：
package com.wsj.wsjdemo;
import android.os.Bundle;
import android.app.Activity;
import android.app.AlertDialog;
import android.content.DialogInterface;
import android.content.Intent;
import android.view.Menu;
public class MainActivity extends Activity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
initGlobal();
checkVersion();
}
/**
* 初始化全局變量
* 實際工作中這種方法中serverVersion從服務器端獲取。最好在啟動畫面的activity中運行
*/
public void initGlobal(){
try{
Global.localVersion = getPackageManager().getPackageInfo(getPackageName(),0).versionCode; //設置本地版本號號
Global.serverVersion = 2;//假定服務器版本號為2。本地版本號默認是1
}catch (Exception ex){
ex.printStackTrace();
}
}
/**
* 檢查更新版本號
*/
public void checkVersion(){
if(Global.localVersion < Global.serverVersion){
//發現新版本號，提示用戶更新
AlertDialog.Builder alert = new AlertDialog.Builder(this);
alert.setTitle("軟件升級")
.setMessage("發現新版本號,建議馬上更新使用.")
.setPositiveButton("更新", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
//開啟更新服務UpdateService
//這裏為了把update更好模塊化，能夠傳一些updateService依賴的值
//如布局ID，資源ID，動態獲取的標題,這裏以app_name為例
Intent updateIntent =new Intent(MainActivity.this, UpdateService.class);
updateIntent.putExtra("app_name",R.string.app_name);
updateIntent.putExtra("downurl","http://www.subangloan.com/Contract/App/Android/caijia_unsign_signed.apk");
startService(updateIntent);
}
})
.setNegativeButton("取消",new DialogInterface.OnClickListener(){
public void onClick(DialogInterface dialog, int which) {
dialog.dismiss();
}
});
alert.create().show();
}else{
//清理工作，略去
//cheanUpdateFile(),文章後面我會附上代碼
}
}
}activity_main.xml文件：什麽都沒有就一個簡單界面
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent" >
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/hello_world" />
</LinearLayout>在Main中的用到的Global.java
package com.wsj.wsjdemo;
public class Global {
//版本號信息
public static int localVersion = 0;
public static int serverVersion = 0;
public static String downloadDir = "app/download/";
}
寫的服務實現UpdateService.java
package com.wsj.wsjdemo;
import java.io.File;
import java.io.IOException;
import java.text.DecimalFormat;
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 android.app.Notification;
import android.app.NotificationManager;
import android.app.PendingIntent;
import android.app.Service;
import android.content.Context;
import android.content.Intent;
import android.net.Uri;
import android.os.Handler;
import android.os.IBinder;
import android.os.Message;
import android.widget.RemoteViews;
public class UpdateService extends Service {
private static String down_url; // = "http://192.168.1.112:8080/360.apk";
private static final int DOWN_OK = 1; // 下載完畢
private static final int DOWN_ERROR = 0;
private String app_name;
private NotificationManager notificationManager;
private Notification notification;
private Intent updateIntent;
private PendingIntent pendingIntent;
private String updateFile;
private int notification_id = 0;
long totalSize = 0;// 文件總大小
/***
* 更新UI
*/
final Handler handler = new Handler() {
@SuppressWarnings("deprecation")
@Override
public void handleMessage(Message msg) {
switch (msg.what) {
case DOWN_OK:
// 下載完畢。點擊安裝
Intent installApkIntent = getFileIntent(new File(updateFile));
pendingIntent = PendingIntent.getActivity(UpdateService.this, 0, installApkIntent, 0);
notification.contentIntent = pendingIntent;
notification.flags |= Notification.FLAG_AUTO_CANCEL;
notification.setLatestEventInfo(UpdateService.this, app_name, "下載成功，點擊安裝", pendingIntent);
notificationManager.notify(notification_id, notification);
stopService(updateIntent);
break;
case DOWN_ERROR:
notification.setLatestEventInfo(UpdateService.this, app_name, "下載失敗", pendingIntent);
break;
default:
stopService(updateIntent);
break;
}
}
};
@Override
public IBinder onBind(Intent arg0) {
return null;
}
@Override
public int onStartCommand(Intent intent, int flags, int startId) {
if (intent != null) {
try {
app_name = intent.getStringExtra("app_name");
down_url = intent.getStringExtra("downurl");
// 創建文件
File updateFile = FileUtils.getDiskCacheDir(getApplicationContext(), "xxxx.apk");
if (!updateFile.exists()) {
try {
updateFile.createNewFile();
} catch (IOException e) {
e.printStackTrace();
}
}
// 創建通知
createNotification();
// 開始下載
downloadUpdateFile(down_url, updateFile.getAbsolutePath());
} catch (Exception e) {
e.printStackTrace();
}
}
return super.onStartCommand(intent, flags, startId);
}
/***
* 創建通知欄
*/
RemoteViews contentView;
@SuppressWarnings("deprecation")
public void createNotification() {
notificationManager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
notification = new Notification();
notification.icon = R.drawable.ic_launcher;
// 這個參數是通知提示閃出來的值.
notification.tickerText = "開始下載";
// pendingIntent = PendingIntent.getActivity(this, 0, updateIntent, 0);
// 這裏面的參數是通知欄view顯示的內容
notification.setLatestEventInfo(this, app_name, "下載：0%", pendingIntent);
// notificationManager.notify(notification_id, notification);
/***
* 在這裏我們用自定的view來顯示Notification
*/
contentView = new RemoteViews(getPackageName(), R.layout.notification_item);
contentView.setTextViewText(R.id.notificationTitle, "正在下載");
contentView.setTextViewText(R.id.notificationPercent, "0%");
contentView.setProgressBar(R.id.notificationProgress, 100, 0, false);
notification.contentView = contentView;
updateIntent = new Intent(this, MainActivity.class);
updateIntent.addFlags(Intent.FLAG_ACTIVITY_SINGLE_TOP);
pendingIntent = PendingIntent.getActivity(this, 0, updateIntent, 0);
notification.contentIntent = pendingIntent;
notificationManager.notify(notification_id, notification);
}
/***
* 下載文件
*/
public void downloadUpdateFile(String down_url, String file) throws Exception {
updateFile = file;
HttpUtils HttpUtils = new HttpUtils();
HttpUtils.download(down_url, file, new RequestCallBack<File>() {
@Override
public void onSuccess(ResponseInfo<File> responseInfo) {
// 下載成功
Message message = handler.obtainMessage();
message.what = DOWN_OK;
handler.sendMessage(message);
installApk(new File(updateFile), UpdateService.this);
}
@Override
public void onFailure(HttpException error, String msg) {
Message message = handler.obtainMessage();
message.what = DOWN_ERROR;
handler.sendMessage(message);
}
@Override
public void onLoading(long total, long current, boolean isUploading) {
super.onLoading(total, current, isUploading);
double x_double = current * 1.0;
double tempresult = x_double / total;
DecimalFormat df1 = new DecimalFormat("0.00"); // ##.00%
// 百分比格式。後面不足2位的用0補齊
String result = df1.format(tempresult);
contentView.setTextViewText(R.id.notificationPercent, (int) (Float.parseFloat(result) * 100) + "%");
contentView.setProgressBar(R.id.notificationProgress, 100, (int) (Float.parseFloat(result) * 100), false);
notificationManager.notify(notification_id, notification);
}
});
}
// 下載完畢後打開安裝apk界面
public static void installApk(File file, Context context) {
//L.i("msg", "版本號更新獲取sd卡的安裝包的路徑=" + file.getAbsolutePath());
Intent openFile = getFileIntent(file);
context.startActivity(openFile);
}
public static Intent getFileIntent(File file) {
Uri uri = Uri.fromFile(file);
String type = getMIMEType(file);
Intent intent = new Intent("android.intent.action.VIEW");
intent.addCategory("android.intent.category.DEFAULT");
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
intent.setDataAndType(uri, type);
return intent;
}
public static String getMIMEType(File f) {
String type = "";
String fName = f.getName();
// 取得擴展名
String end = fName
.substring(fName.lastIndexOf(".") + 1, fName.length());
if (end.equals("apk")) {
type = "application/vnd.android.package-archive";
} else {
// /*假設無法直接打開。就跳出軟件列表給用戶選擇 */
type = "*/*";
}
return type;
}
}基本上凝視寫的清清楚楚，這當中用到了Xutils開源框架來下載文件。
如過你認為看的麻煩直接點擊下載demo吧。不須要積分.。
。。
Android更新帶進度條的通知欄