package me.chunsheng.hongbao.utils;import android.content.Context;import android.content.Intent;import android.content.pm.PackageInfo;import android.net.Uri;import android.os.AsyncTask;import android.widget.Toast;import org.apache.http.HttpResponse;import org.apache.http.StatusLine;import org.apache.http.client.HttpClient;import org.apache.http.client.methods.HttpGet;import org.apache.http.impl.client.DefaultHttpClient;import org.json.JSONObject;import me.chunsheng.hongbao.R;import java.io.ByteArrayOutputStream;import java.io.IOException;/** * Util for app update task. */public class UpdateTask extends AsyncTask
     
       {    private Context context;    private boolean isUpdateOnRelease;    //public static final String updateUrl = "https://api.github.com/repos/geeeeeeeeek/WeChatLuckyMoney/releases/latest";    public static final String updateUrl = "https://api.github.com/repos/geeeee/WeChatLuckyMoney/releases/latest";    public UpdateTask(Context context, boolean needUpdate) {        this.context = context;        this.isUpdateOnRelease = needUpdate;        if (this.isUpdateOnRelease) Toast.makeText(context, "正在检查新版本……", Toast.LENGTH_SHORT).show();    }    @Override    protected String doInBackground(String... uri) {        HttpClient httpclient = new DefaultHttpClient();        HttpResponse response;        String responseString = null;        try {            response = httpclient.execute(new HttpGet(uri[0]));            StatusLine statusLine = response.getStatusLine();            if (statusLine.getStatusCode() == 200) {                ByteArrayOutputStream out = new ByteArrayOutputStream();                response.getEntity().writeTo(out);                responseString = out.toString();                out.close();            } else {                // Close the connection.                response.getEntity().getContent().close();                throw new IOException(statusLine.getReasonPhrase());            }        } catch (Exception e) {            return null;        }        return responseString;    }    @Override    protected void onPostExecute(String result) {        super.onPostExecute(result);        try {            JSONObject release = new JSONObject(result);            // Get current version            PackageInfo pInfo = context.getPackageManager().getPackageInfo(context.getPackageName(), 0);            String version = pInfo.versionName;            String latestVersion = release.getString("tag_name");            boolean isPreRelease = release.getBoolean("prerelease");            if (!isPreRelease && version.compareToIgnoreCase(latestVersion) >= 0) {                // Your version is ahead of or same as the latest.                if (this.isUpdateOnRelease)                    Toast.makeText(context, R.string.update_already_latest, Toast.LENGTH_SHORT).show();            } else {                if (!isUpdateOnRelease) {                    Toast.makeText(context, context.getString(R.string.update_new_seg1) + latestVersion + context.getString(R.string.update_new_seg3), Toast.LENGTH_LONG).show();                    return;                }                // Need update.                String downloadUrl = release.getJSONArray("assets").getJSONObject(0).getString("browser_download_url");                // Give up on the fucking DownloadManager. The downloaded apk got renamed and unable to install. Fuck.                Intent browserIntent = new Intent(Intent.ACTION_VIEW, Uri.parse(downloadUrl));                browserIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);                context.startActivity(browserIntent);                Toast.makeText(context, context.getString(R.string.update_new_seg1) + latestVersion + context.getString(R.string.update_new_seg2), Toast.LENGTH_LONG).show();            }        } catch (Exception e) {            e.printStackTrace();            if (this.isUpdateOnRelease)                Toast.makeText(context, R.string.update_error, Toast.LENGTH_LONG).show();        }    }    public void update() {        super.execute(updateUrl);    }}