android - 在 android 中关闭自动更新时，以编程方式从 Google 商店更新应用程序

Question

我在应用程序中面临一个挑战，即我们的客户群始终关闭应用程序功能的“自动更新”。所以他们甚至没有在他们的设备上获得我的应用程序的更新，尽管它在谷歌播放中。我想以编程方式检查，如果我的应用程序的任何新版本正在上传到 google play，那么用户将收到类似“google play 上有新版本，立即更新”的提醒，当用户点击“确定”时，新版本将安装在设备上。

如果您为此共享代码 fragment ，那就太好了。

Answer 1

您可以手动检查更新并通知用户。尝试以下操作:

public class Test extends Activity {
    private Handler mHandler;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.front);
        mHandler = new Handler();

        /* Get Last Update Time from Preferences */
        SharedPreferences prefs = getPreferences(0);
        lastUpdateTime =  prefs.getLong("lastUpdateTime", 0);

        /* Should Activity Check for Updates Now? */
        if ((lastUpdateTime + (24 * 60 * 60 * 1000)) < System.currentTimeMillis()) {

            /* Save current timestamp for next Check*/
            lastUpdateTime = System.currentTimeMillis();            
            SharedPreferences.Editor editor = getPreferences(0).edit();
            editor.putLong("lastUpdateTime", lastUpdateTime);
            editor.commit();        

            /* Start Update */            
            checkUpdate.start();
        }
    }

    /* This Thread checks for Updates in the Background */
    private Thread checkUpdate = new Thread() {
        public void run() {
            try {
                URL updateURL = new URL("http://my.company.com/update");                
                URLConnection conn = updateURL.openConnection(); 
                InputStream is = conn.getInputStream();
                BufferedInputStream bis = new BufferedInputStream(is);
                ByteArrayBuffer baf = new ByteArrayBuffer(50);

                int current = 0;
                while((current = bis.read()) != -1){
                     baf.append((byte)current);
                }

                /* Convert the Bytes read to a String. */
                final String s = new String(baf.toByteArray());         

                /* Get current Version Number */
                int curVersion = getPackageManager().getPackageInfo("your.app.id", 0).versionCode;
                int newVersion = Integer.valueOf(s);

                /* Is a higher version than the current already out? */
                if (newVersion > curVersion) {
                    /* Post a Handler for the UI to pick up and open the Dialog */
                    mHandler.post(showUpdate);
                }                
            } catch (Exception e) {
            }
        }
    };

    /* This Runnable creates a Dialog and asks the user to open the Market */ 
    private Runnable showUpdate = new Runnable(){
           public void run(){
            new AlertDialog.Builder(Test.this)
            .setIcon(R.drawable.icon)
            .setTitle("Update Available")
            .setMessage("An update for is available!\\n\\nOpen Android Market and see the details?")
            .setPositiveButton("Yes", new DialogInterface.OnClickListener() {
                    public void onClick(DialogInterface dialog, int whichButton) {
                            /* User clicked OK so do some stuff */
                            Intent intent = new Intent(Intent.ACTION_VIEW, Uri.parse("market://search?q=pname:your.app.id"));
                            startActivity(intent);
                    }
            })
            .setNegativeButton("No", new DialogInterface.OnClickListener() {
                    public void onClick(DialogInterface dialog, int whichButton) {
                            /* User clicked Cancel */
                    }
            })
            .show();
           }
    };    
}

Source