APP更新

import android.app.DownloadManager;
import android.content.ActivityNotFoundException;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.database.Cursor;
import android.net.Uri;

import java.io.File;

public class DownloadManagerHelp {

//    http://dworkstudio.com/xalbums/update/update.xmlpublic static final String BASE_PATH = "/xalbums/download/";private static final String TAG = DownloadManagerHelp.class.getSimpleName();public String getUri() {    return uri;}public void setUri(String uri) {    this.uri = uri;}private String filename = "xalbums.apk";//UpdateVersionTask.APK_NAME;private Context context;private DownloadManager downloadManager;private String uri;private long downloadId = 0;private DownloadManagerHelp(Context c) {    this.context = c;    downloadManager = (DownloadManager) c            .getSystemService(Context.DOWNLOAD_SERVICE);}private static DownloadManagerHelp instance;public static DownloadManagerHelp getInstance(Context c) {    if (instance == null) {        instance = new DownloadManagerHelp(c);    }    return instance;}private long getDownloadId(String dirType) {    downloadId = 0;    try {        downloadId = downloadManager.enqueue(new DownloadManager.Request(                Uri.parse(uri))                .setAllowedNetworkTypes(                        DownloadManager.Request.NETWORK_MOBILE                                | DownloadManager.Request.NETWORK_WIFI)                .setAllowedOverRoaming(false)                .setTitle(context.getString(R.string.app_name))                .setVisibleInDownloadsUi(true)                .setDestinationInExternalPublicDir(dirType, filename));    } catch (Exception e) {        // download failed when download manager was disable, so we need create download thread by us.        FileDownloadThread.getInstance(context).setUrl(uri);        FileDownloadThread.getInstance(context).startDownload();        FLog.i(TAG, "getDownloadId throw error,create download thread by us to try again");    }    return downloadId;}private void enableDownloadManager() {    try {        //Open the specific App Info page:        Intent intent = new Intent(android.provider.Settings.ACTION_APPLICATION_DETAILS_SETTINGS);        intent.setData(Uri.parse("package:" + "com.android.providers.downloads"));        context.startActivity(intent);    } catch (ActivityNotFoundException ex) {        ex.printStackTrace();        //Open the generic Apps page:        Intent intent = new Intent(android.provider.Settings.ACTION_MANAGE_APPLICATIONS_SETTINGS);        context.startActivity(intent);    }}public void startDownload() {    if (downloadManager != null) {        FLog.i(TAG, "downlaod strat.");        UserSetting.setBoolean(context, Constants.DOWNLOAD_START, true);        // 解决K900无法自动升级问题        downloadId = getDownloadId(BASE_PATH);        context.registerReceiver(downloadReceiver, new IntentFilter(                DownloadManager.ACTION_DOWNLOAD_COMPLETE));    }}public String getFilename() {    return filename;}public void setFilename(String filename) {    this.filename = filename;}private BroadcastReceiver downloadReceiver = new BroadcastReceiver() {    @Override    public void onReceive(Context context, Intent intent) {        DownloadManager.Query query = new DownloadManager.Query();        query.setFilterById(downloadId);        Cursor c = downloadManager.query(query);        if (c != null && c.moveToFirst()) {            int status = c.getInt(c                    .getColumnIndex(DownloadManager.COLUMN_STATUS));            String filename = c.getString(c                    .getColumnIndex(DownloadManager.COLUMN_LOCAL_FILENAME));            switch (status) {                case DownloadManager.STATUS_PAUSED:                case DownloadManager.STATUS_PENDING:                case DownloadManager.STATUS_RUNNING:                case DownloadManager.STATUS_SUCCESSFUL:                    File file = new File(filename);                    FLog.i("download", "filename:" + filename);                    installApk(file);                    break;                case DownloadManager.STATUS_FAILED:                    stopDownload();                    break;            }        }        if (c != null) {            c.close();        }    }};protected void installApk(File file) {    Intent intent = new Intent();    intent.setAction(Intent.ACTION_VIEW);    intent.setDataAndType(Uri.fromFile(file),            "application/vnd.android.package-archive");    intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);    context.startActivity(intent);    FLog.i(TAG, "downlaod ok ,and install the application.");}public void stopDownload() {    if (downloadId != 0) {        downloadManager.remove(downloadId);        context.unregisterReceiver(downloadReceiver);        downloadId = 0;    }}

}

2：
import android.annotation.SuppressLint;
import android.app.Notification;
import android.app.NotificationManager;
import android.app.PendingIntent;
import android.content.ComponentName;
import android.content.Context;
import android.content.Intent;
import android.net.Uri;
import android.view.View;
import android.widget.RemoteViews;

import java.io.BufferedInputStream;
import java.io.File;
import java.io.FileOutputStream;
import java.io.InputStream;
import java.net.HttpURLConnection;
import java.net.URL;
import java.text.SimpleDateFormat;
import java.util.Date;

@SuppressLint(“NewApi”)
public class FileDownloadThread extends Thread {

private String url;private String path = Constants.ROOT_PATH;private String savePath = path + "xalbums.apk";private boolean run = false;private final static int DOWNLOAD_ID = 201;private Context mContext;private Notification.Builder builder;private NotificationManager manager;private FileDownloadThread(Context context) {    this.mContext = context;    manager = (NotificationManager) mContext            .getSystemService(Context.NOTIFICATION_SERVICE);    builder = new Notification.Builder(mContext);}private static FileDownloadThread instance = null;public static FileDownloadThread getInstance(Context context) {    if (instance == null) {        instance = new FileDownloadThread(context);    }    return instance;}public void sendNotification(int progress, boolean isSuccess) {    RemoteViews rv = new RemoteViews(mContext.getPackageName(),            R.layout.download_notification);    SimpleDateFormat format = new SimpleDateFormat("HH:mm");    Date d1 = new Date();    String t1 = format.format(d1);    Intent appIntent = new Intent(Intent.ACTION_MAIN);    appIntent.addCategory(Intent.CATEGORY_LAUNCHER);    appIntent.setComponent(new ComponentName(mContext.getPackageName(),            "com.lenovo.linkit.HomeActivity"));    appIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK            | Intent.FLAG_ACTIVITY_SINGLE_TOP);    PendingIntent mainPiIntent = PendingIntent.getActivity(mContext, 0,            appIntent, PendingIntent.FLAG_UPDATE_CURRENT);    builder.setContentIntent(mainPiIntent);    builder.setContentTitle(mContext            .getString(R.string.update_download_title));    builder.setSmallIcon(R.drawable.ic_launcher);    String text = String.format("%2d", progress) + "%";    rv.setTextViewText(R.id.notification_desc, text);    builder.setContentText(text);    builder.setWhen(System.currentTimeMillis());    builder.setOngoing(false);    rv.setTextViewText(R.id.notification_title,            mContext.getString(R.string.update_download_title));    if (progress != 100 && isSuccess) {        rv.setViewVisibility(R.id.content_view_progress, View.VISIBLE);        rv.setViewVisibility(R.id.notification_desc, View.GONE);        builder.setOngoing(true);        rv.setProgressBar(R.id.content_view_progress, 100, progress, false);    } else if (isSuccess) {        rv.setViewVisibility(R.id.notification_desc, View.VISIBLE);        rv.setViewVisibility(R.id.content_view_progress, View.GONE);        rv.setTextViewText(R.id.notification_desc,                mContext.getString(R.string.update_download_ok_start_install));    } else {        rv.setViewVisibility(R.id.notification_desc, View.VISIBLE);        rv.setViewVisibility(R.id.content_view_progress, View.GONE);        rv.setTextViewText(R.id.notification_desc,                mContext.getString(R.string.update_download_faile_please_retry));    }    rv.setTextViewText(R.id.notification_time, t1);    builder.setContent(rv);    builder.setTicker(mContext.getString(R.string.update_download_title));    Notification notification = builder.build();    notification.contentView = rv;    manager.notify(DOWNLOAD_ID, notification);}public void startDownload() {    if (run == false) {        new Thread(this).start();    }}@Overridepublic void run() {    super.run();    URL u;    try {        run = true;        sendNotification(0, true);        u = new URL(url);        HttpURLConnection conn = (HttpURLConnection) u.openConnection();        conn.setConnectTimeout(5000);        double fileSize = conn.getContentLength();        InputStream is = conn.getInputStream();        File pathFile = new File(path);        if (!pathFile.exists()) {            pathFile.mkdir();        }        File file = new File(savePath);        if (!file.exists()) {            file.createNewFile();        }        FileOutputStream fos = new FileOutputStream(file);        BufferedInputStream bis = new BufferedInputStream(is);        byte[] buffer = new byte[1024];        int len;        double total = 0;        double pcent = 0;        while ((len = bis.read(buffer)) != -1) {            fos.write(buffer, 0, len);            total += len;            double percent = (int) ((total * 100 / fileSize));            if (percent - pcent >= 1.0) {                pcent = percent;                sendNotification((int) percent, true);            }        }        sendNotification(100, true);        fos.close();        bis.close();        is.close();        installApk(file);        manager.cancel(DOWNLOAD_ID);        run = false;    } catch (Exception e) {        run = false;        sendNotification(0, false);    }}public String getUrl() {    return url;}public void setUrl(String url) {    this.url = url;}protected void installApk(File file) {    Intent intent = new Intent();    intent.setAction(Intent.ACTION_VIEW);    intent.setDataAndType(Uri.fromFile(file),            "application/vnd.android.package-archive");    mContext.startActivity(intent);}

}

public class Constants {

public static final String ENTRY_ALL_PHOTO_FRAGMENT_NULL = "entry_all_photo_fragment_null" ;public static final String ENTRY_ALL_PHOTO_FRAGMENT_BIG_SIZE = "entry_all_photo_fragment_big_size" ;public static final String ENTRY_ALL_PHOTO_FRAGMENT_SIMILAR = "entry_all_photo_fragment_similar" ;public static final String ENTRY_ALL_PHOTO_FRAGMENT_NO_USE = "entry_all_photo_fragment_no_use" ;public static final String FULL_REMIND_CLOSED = "full_remind_closed";public static final String RIGHT_REMIND_CLOSED = "right_remind_closed";public static final String FULL_REMIND_FIRST_SHOW = "full_remind_first_show";public static final String RIGHT_REMIND_FIRST_SHOW = "right_remind_first_show";public static final String APPLICATION_FRIST_ARRANGE = "application_frist_arrange";

}

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