Android APP更新——service后台下载、进度提示、自动安装
检测应用的当前版本号。与服务端最新版本号进行比较。
/**
* 获取版本号 需要在Activity 中使用
* @return 当前应用的版本号
*/
public String getVersion() {
try {
PackageManager manager = this.getPackageManager();
PackageInfo info = manager.getPackageInfo(this.getPackageName(), 0);
String version = info.versionName;
return version;
} catch (Exception e) {
e.printStackTrace();
return "获取失败";
}
}检测本地版本号低于最新版本时。需要更新。 如下启动service
Intent intent = new Intent(SetActivity.this, DownAPKService.class);
apkDownloadPath=new String();
intent.putExtra("apk_url",apkDownloadPath);
startService(intent);package com.xx.xx;
import java.io.File;
import java.text.DecimalFormat;
import android.app.NotificationManager;
import android.app.PendingIntent;
import android.app.Service;
import android.content.Context;
import android.content.Intent;
import android.content.pm.ApplicationInfo;
import android.content.pm.PackageManager;
import android.net.Uri;
import android.os.Environment;
import android.os.IBinder;
import android.os.Vibrator;
import android.support.v4.app.NotificationCompat;
import android.widget.Toast;
import com.lidroid.xutils.HttpUtils;
import com.lidroid.xutils.exception.HttpException;
import com.lidroid.xutils.http.HttpHandler;
import com.lidroid.xutils.http.ResponseInfo;
import com.lidroid.xutils.http.callback.RequestCallBack;
/**
* @Title:DownAPKService.java
* @Description:专用下载APK文件Service工具类,通知栏显示进度,下载完成震动提示,并自动打开安装界面(配合xUtils快速开发框架)
*
* 需要添加权限：
* mDownLoadHelper;
// 文件下载路径
private String APK_url = "";
// 文件保存路径(如果有SD卡就保存SD卡,如果没有SD卡就保存到手机包名下的路径)
private String APK_dir = "";
@Override
public IBinder onBind(Intent intent) {
return null;
}
@Override
public void onCreate() {
super.onCreate();
initAPKDir();// 创建保存路径
}
@Override
public int onStartCommand(Intent intent, int flags, int startId) {
System.out.println("onStartCommand");
// 接收Intent传来的参数:
// APK_url = intent.getStringExtra("apk_url");
DownFile(APK_url , APK_dir + "Club.apk");
return super.onStartCommand(intent, flags, startId);
}
private void initAPKDir() {
/**
* 创建路径的时候一定要用[/],不能使用[\],但是创建文件夹加文件的时候可以使用[\].
* [/]符号是Linux系统路径分隔符,而[\]是windows系统路径分隔符 Android内核是Linux.
*/
if (isHasSdcard())// 判断是否插入SD卡
{
APK_dir = Environment.getExternalStorageDirectory().getAbsolutePath() + "/Club/download/";// 保存到SD卡路径下
}
else{
APK_dir = getApplicationContext().getFilesDir().getAbsolutePath() + "/Club/download/";// 保存到app的包名路径下
}
File destDir = new File(APK_dir);
if (!destDir.exists()) {// 判断文件夹是否存在
destDir.mkdirs();
}
}
/**
*
* @Description:判断是否插入SD卡
*/
private boolean isHasSdcard() {
String status = Environment.getExternalStorageState();
if (status.equals(Environment.MEDIA_MOUNTED)) {
return true;
} else {
return false;
}
}
private void DownFile(String file_url, String target_name) {
mDownLoadHelper = new HttpUtils().download(file_url, target_name, true, true, new RequestCallBack() {
@Override
public void onStart() {
super.onStart();
System.out.println("开始下载文件");
mNotificationManager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
builder = new NotificationCompat.Builder(getApplicationContext());
builder.setSmallIcon(R.drawable.ic_launcher);
builder.setTicker("正在下载新版本");
builder.setContentTitle(getApplicationName());
builder.setContentText("正在下载,请稍后...");
builder.setNumber(0);
builder.setAutoCancel(true);
mNotificationManager.notify(NotificationID, builder.build());
}
@Override
public void onLoading(long total, long current, boolean isUploading) {
super.onLoading(total, current, isUploading);
System.out.println("文件下载中");
int x = Long.valueOf(current).intValue();
int totalS = Long.valueOf(total).intValue();
builder.setProgress(totalS, x, false);
builder.setContentInfo(getPercent(x, totalS));
mNotificationManager.notify(NotificationID, builder.build());
}
@Override
public void onSuccess(ResponseInfo responseInfo) {
System.out.println("文件下载完成");
Intent installIntent = new Intent(Intent.ACTION_VIEW);
System.out.println(responseInfo.result.getPath());
Uri uri = Uri.fromFile(new File(responseInfo.result.getPath()));
installIntent.setDataAndType(uri, "application/vnd.android.package-archive");
installIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
PendingIntent mPendingIntent = PendingIntent.getActivity(DownAPKService.this, 0, installIntent, 0);
builder.setContentText("下载完成,请点击安装");
builder.setContentIntent(mPendingIntent);
mNotificationManager.notify(NotificationID, builder.build());
// 震动提示
Vibrator vibrator = (Vibrator) getSystemService(Context.VIBRATOR_SERVICE);
vibrator.vibrate(1000L);// 参数是震动时间(long类型)
stopSelf();
startActivity(installIntent);// 下载完成之后自动弹出安装界面
mNotificationManager.cancel(NotificationID);
}
@Override
public void onFailure(HttpException error, String msg) {
System.out.println("文件下载失败");
mNotificationManager.cancel(NotificationID);
Toast.makeText(getApplicationContext(), "下载失败，请检查网络！", Toast.LENGTH_SHORT).show();
}
@Override
public void onCancelled() {
super.onCancelled();
System.out.println("文件下载结束，停止下载器");
mDownLoadHelper.cancel();
}
});
}
/**
*
* @param x
* 当前值
* @param total
* 总值
* [url=home.php?mod=space&uid=7300]@return[/url] 当前百分比
* @Description:返回百分之值
*/
private String getPercent(int x, int total) {
String result = "";// 接受百分比的值
double x_double = x * 1.0;
double tempresult = x_double / total;
// 百分比格式，后面不足2位的用0补齐 ##.00%
DecimalFormat df1 = new DecimalFormat("0.00%");
result = df1.format(tempresult);
return result;
}
/**
* @return
* @Description:获取当前应用的名称
*/
private String getApplicationName() {
PackageManager packageManager = null;
ApplicationInfo applicationInfo = null;
try {
packageManager = getApplicationContext().getPackageManager();
applicationInfo = packageManager.getApplicationInfo(getPackageName(), 0);
} catch (PackageManager.NameNotFoundException e) {
applicationInfo = null;
}
String applicationName = (String) packageManager.getApplicationLabel(applicationInfo);
return applicationName;
}
@Override
public void onDestroy() {
super.onDestroy();
stopSelf();
}
}