Check new version only for third party market because Google Android Market provides update function. - Android App

Android examples for App:App Market

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Description

Check new version only for third party market because Google Android Market provides update function.

Demo Code


import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.net.HttpURLConnection;
import java.net.URL;
import android.content.Context;
import android.content.pm.PackageManager.NameNotFoundException;
import android.net.ConnectivityManager;
import android.net.NetworkInfo;
import android.util.Log;

public class Main{
    public static final int CONNECT_TIMEOUT = 20 * 1000;
    public static final int READ_TIMEOUT = 20 * 1000;
    public static final String HOST_NAME = "meili.51leiju.cn";
    public static final String PORT = "80";
    static final String TAG = "NetHelper";
    /**//from  w  w  w .j  a v  a  2  s. co m
     * Check new version only for third party market because Google Android Market provides update function. 
     */
    public static void checkNewVersion(Context ctx) {
        Log.d(TAG, "IN checkNewVersion method");
        if (Settings.installedFromGoogleMarket(ctx))
            return;
        if (Settings.getBooleanPreferenceValue(ctx,
                Settings.PRE_HAS_NEW_VERSION, false))
            return;
        String lastBuild = getStringFromNetIO(NetHelper.webPath("http",
                "/client/version"));
        Log.d(TAG, "Last version is => " + lastBuild);
        if (lastBuild == null)
            return;
        try {
            int currentVersion = ctx.getPackageManager().getPackageInfo(
                    ctx.getPackageName(), 0).versionCode;
            Log.d(TAG,
                    "installed version is => "
                            + String.valueOf(currentVersion));
            if (Integer.parseInt(lastBuild) > currentVersion) {
                Log.d(TAG, "Set new version available flag");
                Settings.updateBooleanPreferenceValue(ctx,
                        Settings.PRE_HAS_NEW_VERSION, true);
                Settings.updateLongPreferenceValue(ctx,
                        Settings.PRE_LAST_BUILD,
                        Integer.parseInt(lastBuild));
            }
        } catch (NameNotFoundException e) {
            e.printStackTrace();
        } catch (Exception ce) {
            ce.printStackTrace();
        }
    }
    public static String getStringFromNetIO(String url) {
        HttpURLConnection con = null;
        try {
            con = buildUrlConnection(url);
            InputStream in = con.getInputStream();
            ByteArrayOutputStream out = new ByteArrayOutputStream();
            byte[] buf = new byte[1024 * 8];
            int readCount = 0;
            while ((readCount = in.read(buf)) != -1) {
                out.write(buf, 0, readCount);
            }
            String result = out.toString("UTF-8");
            return result;
        } catch (IOException e) {
            e.printStackTrace();
            return null;
        } finally {
            con.disconnect();
        }
    }
    public static String webPath(String protocol, String path) {
        return protocol + "://" + HOST_NAME + ":" + PORT + path;
    }
    public static HttpURLConnection buildUrlConnection(String url)
            throws IOException {
        URL u = new URL(url);
        HttpURLConnection con = (HttpURLConnection) u.openConnection();
        con.setInstanceFollowRedirects(true);
        con.setConnectTimeout(NetHelper.CONNECT_TIMEOUT);
        con.setReadTimeout(NetHelper.READ_TIMEOUT);
        return con;
    }
}

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