Pop-Up Window at inital start up, of android application

I am trying to find a code that will do a popup at the initial start up on an installed app. Much like a changelog that is starting to appear in more and more apps. I have found some similar codes, but being a beginner I haven't been able to figure out where to exactly put the code in and I always have tons of errors that still do not work once I try and fix them. I am working in Eclipse with an android project, and I'm using a webview to show a website.

XML:

<?xml versio开发者_JAVA技巧n="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
   android:orientation="vertical"
    android:layout_width="fill_parent" android:layout_height="fill_parent">



<WebView  xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/webview"
    android:layout_height="fill_parent" android:layout_width="fill_parent" android:scrollbarAlwaysDrawVerticalTrack="false"/>

</LinearLayout>

Java File:

package com.A2Ddesigners.WhatThe;

import android.app.Activity;
import android.os.Bundle;
import android.webkit.WebView;
import android.webkit.WebViewClient;
import android.view.KeyEvent;


public class Whatthe extends Activity {
    WebView webview;
    /** Called when the activity is first created. */
    @Override
    public boolean onKeyDown(int keyCode, KeyEvent event) {
        if ((keyCode == KeyEvent.KEYCODE_BACK) && webview.canGoBack()) {
            webview.goBack();
            return true;
        }
        return super.onKeyDown(keyCode, event);
    }
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        webview = (WebView) findViewById(R.id.webview);
        webview.setWebViewClient(new HelloWebViewClient());
        webview.getSettings().setJavaScriptEnabled(true);
        webview.setInitialScale(50); 
        webview.getSettings().setUseWideViewPort(true); 
        webview.loadUrl("http://mdsitest2.com/");
    }
    private class HelloWebViewClient extends WebViewClient {
        @Override
        public boolean shouldOverrideUrlLoading(WebView view, String url) {
            view.loadUrl(url);
            return true;


            }

            }   
        }

Using My this code you can show popup on any type of view on intial time of activity.

import android.app.Activity;
import android.os.Bundle;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.widget.LinearLayout;
import android.widget.PopupWindow;

public class PopupDispaly extends Activity {
    private PopupWindow outComePopup;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_tiwter_login);
        final View anyView = findViewById(R.id.popo_up); // define heade your view
        anyView.postDelayed(new Runnable() {
            @Override
            public void run() {
                callFirstToolTip(anyView);
            }
        }, 5000); // hear you can put your delay time like 5000 mls

    }
    public void callFirstToolTip(View view) {
        Log.i("Started Info","popup");
        View layout = LayoutInflater.from(PopupDispaly.this).inflate(R.layout.popup_copy_delete, null); // define hear your layout file id.
        LinearLayout layCopyDelete = (LinearLayout) layout.findViewById(R.id.layCopyDelete);// hear define your id of sub lay like LinearLayout.
        outComePopup = new PopupWindow(layout);
        outComePopup.setFocusable(true);
        layCopyDelete.measure(View.MeasureSpec.UNSPECIFIED, View.MeasureSpec.UNSPECIFIED);
        outComePopup.setWidth(layCopyDelete.getMeasuredWidth());
        outComePopup.setHeight(layCopyDelete.getMeasuredHeight());
        outComePopup.setBackgroundDrawable(getResources().getDrawable(android.R.color.transparent));
        outComePopup.setOutsideTouchable(true);
        outComePopup.showAsDropDown(view);
    }

}

And my Custome View layout file

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:background="@drawable/got_it_bg"
    android:layout_gravity="center_horizontal"
   android:id="@+id/layCopyDelete"
    android:layout_marginLeft="100dp"
    android:orientation="horizontal">

</LinearLayout>

Sounds like you should use a custom dialog box. http://developer.android.com/guide/topics/ui/dialogs.html

There's a code example at the bottom of the page. To show it, you can call onCreateDialog(int) from inside your main activity in its onCreate() method.

PopupWindow.showAsDropDown() in a delayed process can solve this problem, you can execute the show popupWindow in onCreate() method by 0.5s delay.

You should use PopupWindow.showAtLocation but use the post method of the one of the views on your activity. you can also use the root view of the activity using findViewById(android.R.id.content). You code should look like this:

View anyView = findViewById(R.id.anyView);
anyView.post(new Runnable()
{
    @Override
    public void run()
    {
        // Create and show PopupWindow
    }
});