Hi Jark,
Here is my code
package com.android.table;
import android.app.Activity;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.os.Bundle;
import android.view.Display;
import android.view.View;
import android.view.ViewGroup;
import android.view.WindowManager;
import android.widget.FrameLayout;
import android.widget.RelativeLayout;
import android.graphics.Rect;
public class GameDemo extends Activity {
public static int idLayout = 1;
public static int screenheight = 0;
public static int screenwidth = 0;
public AddPegHoles adp = new AddPegHoles(this);
public Hole h;
public static int holeid = 0;
Hole[] holeArray = new Hole[33];
FrameLayout l1,l2,l3,l4,;
RelativeLayout layout;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
layout=(RelativeLayout) findViewById(R.id.tableviewback);
layout.setBackgroundResource(R.drawable.woodenbackground);
Display display;
display =
((WindowManager)getSystemService(WINDOW_SERVICE)).getDefaultDisplay();
screenheight = display.getHeight();
screenwidth = display.getWidth();
l1=(FrameLayout)findViewById(R.id.frame1);
adp.addPegHoles(l1, 1,0);
createHole(holeid,true,R.id.frame1,1);
l2=(FrameLayout)findViewById(R.id.frame2);
adp.addPegHoles(l2, 1, leftpadding+l1.getWidth());
holeid++; createHole(holeid,true,R.id.frame2,1);
l3=(FrameLayout)findViewById(R.id.frame3);
adp.addPegHoles(l3, 1, leftpadding+l1.getWidth());
holeid++; createHole(holeid,true,R.id.frame3,1);
int leftpadding=(screenwidth/7);
int toppadding=(screenheight/7);
On Mon, Mar 23, 2009 at 5:28 PM, Jark Reijerink
<jark.reijer...@gmail.com> wrote:
> Hello,
>
> Are you sure you're getting a valid FrameLayout?
>
> Because if findViewById doesnt finds a valid view it returns null. Which
> could explain the NullPointerException.
>
> Also: are you setting your xml layout with setContentView in your onCreate
> method? If so try putting your code after that method call.
>
> Jark
>
> 2009/3/23 kavitha <kavith...@gmail.com>
>>
>> Hii All,
>>
>> I am developing a game in android and i want to capture screen
>> coordinates of a view(ImageView) which is embedded in frame.
>>
>> Hierarchy is
>> <LinearLayout android android:layout_height="fill_parent"
>> android:layout_width="fill_parent" >
>> <RelativeLayout android:layout_height=fill_parent"
>> android:layout_width="fill_parent" >
>> <FrameLayout android:layout_height="wrap_content"
>> android:layout_width="wrap_content"
>> android:id="@+id/frame14"></FrameLayout>
>> </RelativeLayout>
>> </LinearLayout>
>>
>> At run time i am attaching two image views for frame layout.I wanted
>> to capture screen coordinates of frame layout.But Couldnt do it.if i
>> say
>>
>> (FrameLayout) f=(FrameLayout)findViewById(R.id.frame14);
>> int[] loc = new int[2];
>> f.getLocationOnScreen(loc);
>> System.out.println(loc[0]);
>> System.out.println(loc[1]);
>>
>> I get Null Pointer Exception for getLocationOnScreen() method.
>>
>> If I try to get f.getLeft() and f.getRight() they return as 0
>> coordinates.
>>
>> Can anyone please tell me how to find location on screen of a view.
>>
>> I tried even in onStart() method,,,still i get Null Pointer Exception.
>>
>> Please tell me how to get screen coordinates of a view in android.
>>
>> It is very urgent.Please help.
>>
>> Thanks
>> Kavitha
>>
>
>
> >
>
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