Put a Linear Layout

[Sarra Sakka]

I have created in my file .xml a linear layout
I want to create in this linear layout a linear layout which contains 3 linear layout with this latter contains a button and a text view below
I create a method but it does not display anything:
here's the method :

public void putLinearLayoutProduct(double count){
		LinearLayout Linear = (LinearLayout)findViewById(R.id.linearlayout1);
		
		 int mButtonHeight = 60;//hauteur
         int mButtonWidth = 120;//longueur
         
		while(count >0)
		{
			LinearLayout L = new LinearLayout(this);
			L.setOrientation(LinearLayout.HORIZONTAL);
			LayoutParams params = new LayoutParams(LayoutParams.WRAP_CONTENT,LayoutParams.WRAP_CONTENT); //<--this line , is what you were missing
            L.setLayoutParams(params);
            
			for(int i=1;i<=3;i++)
			{
				LinearLayout L1 = new LinearLayout(this);
				L1.setBackgroundColor(Color.WHITE);
				L1.setLayoutParams(params);
				
				Button b= new Button(this);
				TextView tv = new TextView(this);
				tv.setGravity(Gravity.CENTER);
                tv.setTextColor(Color.BLUE);
                tv.setText("name");
                L1.setOrientation(LinearLayout.VERTICAL);
                b.setWidth(mButtonWidth);
                b.setHeight(mButtonHeight);
                L1.addView(b);
                L1.addView(tv);
                L.addView(L1);
                count --;
			}

            Linear.addView(L);
		}
		
		
	}
	

[Sarra Sakka]

I waant to put all this in Scroll View

[Sarra Sakka]

I want to show the image to explain better, but i don't know how can put it here

[Ulf Dittmer]

If you use the "Post Reply" button, then you can add images via the "Attachments" tab.

[Steve Luke]

I suspect you are trying to do what a ListView already does. See the developers network article on ListViews. What I would suggest doing is create one Layout for just the inner most LinearLayout (I call this text_and_btton.xml):

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:layout_gravity="center"
    android:gravity="center_horizontal"
    android:orientation="vertical" >

    <Button
        android:id="@+id/button"
        android:layout_width="@dimen/button_width"
        android:layout_height="@dimen/button_height"
        android:text="" />

    <TextView
        android:id="@+id/label"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center"
        android:text="name"
        android:textAppearance="?android:attr/textAppearanceLarge"
        android:textColor="@color/blue" />

</LinearLayout>

Then you define the outer layout with a ListView:

<?xml version="1.0" encoding="utf-8"?>
<ListView xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/image_list"
    android:layout_width="match_parent"
    android:layout_height="match_parent" >

</ListView>

Then you make an adapter that basically is a list of the text and images you want to put into the ListView. The adapter creates the 'inner most' of you layouts - the one with the button and text. Here is an example:

public class ImageStuffAdapter extends ArrayAdapter<ImageStuffAdapter.Image>
{
    private static final Image[] images = new Image[]
    {
            new Image("pizza", R.drawable.pizza),
            new Image("fish", R.drawable.fish),
            new Image("boissoins", R.drawable.boissoins)
    };

    public ImageStuffAdapter(Context context)
    {
        super(context, R.id.label);
    }
    
    @Override
    public int getCount()
    {
        return images.length * 5;
    }
    
    @Override 
    public View getView(int index, View toReuse, ViewGroup container)
    {
        ViewGroup imageView = null;
        
        if (toReuse != null)
        {
            imageView = (ViewGroup)toReuse;
        }
        else
        {
            LayoutInflater inflater = (LayoutInflater) getContext()
                    .getSystemService(Context.LAYOUT_INFLATER_SERVICE);
            imageView = (ViewGroup)inflater.inflate(
                    R.layout.text_and_btton, null, true);
        }
        
        Button button = (Button)imageView.getChildAt(0);
        TextView tv = (TextView)imageView.getChildAt(1);
        
        Image desiredImage = images[index % images.length];
        
        button.setBackgroundResource(desiredImage.id);
        tv.setText(desiredImage.name);
        
        return imageView;
    }
    
    @Override
    /*
     * Because I am accessing items from an array, ids will be stable.  If
     * coming from a DB, maybe this should not be true.
     * @see android.widget.BaseAdapter#hasStableIds()
     */
    public boolean hasStableIds()
    {
        return true;
    }

    public static class Image
    {
        private final String name;
        private final int id;

        public Image(String n, int i)
        {
            this.name = n;
            this.id = i;
        }
    }
}

Then in the activity where you want to display the list, you build the layout with the list view, then get the ListView and set the adapter:

public class MyActivity extends FragmentActivity
{
   
    @Override
    protected void onCreate(Bundle savedInstanceState)
    {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.image_list);
        
        ListView imageList = (ListView) findViewById(R.id.image_list);
        ImageStuffAdapter imageAdapter = new ImageStuffAdapter(this);
        imageList.setAdapter(imageAdapter);
    }

}

If you link this with your other posts, the ImageStuffAdapter is the correct place to do the database work to get the images and text you want to display.

[Steve Luke]

Below is an example of the output from running the above code.

When you do this, you could just as easily make the Buttons ImageViews. You do not need the Button's onClick event because you would use the ListView's onItemClick event to get which item (index) was clicked on.

[Sarra Sakka]

Thanks a lot steve
I want to put here the image that's i made with the photoshop to explain to you what i want exactly
how can i put it !!

[Steve Luke]

My code compiles and runs as written. What part aren't you able to do?

[Sarra Sakka]

I want to show you an image to explain to explain to you what i want exactly
i don't know how can i put an image here in this forum

[Sarra Sakka]

thanks a lot steve

[Steve Luke]

Sarra Sakka wrote:I want to show you an image to explain to explain to you what i want exactly
i don't know how can i put an image here in this forum

Ulf Dittmer wrote:If you use the "Post Reply" button, then you can add images via the "Attachments" tab.

[Sarra Sakka]

here's the image that i want

[Steve Luke]

Ah, then you want a GridView instead of a ListView: http://developer.android.com/guide/topics/ui/layout/gridview.html

Pretty similar stuff to the last code. The new outermost layout uses a GridView instead of a ListView. Not it has a few options for defining the width of a column and number of columns:

<?xml version="1.0" encoding="utf-8"?>
<GridView xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/image_list"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:columnWidth="@dimen/button_width"
    android:numColumns="auto_fit" >

</GridView>

And the activity has to change to use the GridView instead of ListView:

public class MyActivity extends FragmentActivity
{
   
    @Override
    protected void onCreate(Bundle savedInstanceState)
    {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.image_list);
        
        GridView imageList = (GridView) findViewById(R.id.image_list);
        final ImageStuffAdapter imageAdapter = new ImageStuffAdapter(this);
        imageList.setAdapter(imageAdapter);
        imageList.setBackgroundResource(R.drawable.bkg);
    }
}

Note I also set a background... but that is for show Nothing else changes, and the output is shown below.

[Sarra Sakka]

Yeees , that's it
thank you Steve

[Sarra Sakka]

Can you please correct my method

[Sarra Sakka]

What's the bkg ??

[Sarra Sakka]

It work now ,wow !!
I change my code and every thing is ok ;)

[Sarra Sakka]

I want to get this gird view when i pressed a button !!
how can i do it !

[Steve Luke]

Sarra Sakka wrote:I want to get this gird view when i pressed a button !!
how can i do it !

Not sure I understand the question. Are you asking about app navigation via buttons?

[Sarra Sakka]

Can you see this http://www.coderanch.com/t/615919/Android/Mobile/put-dynamically-Imagebutton
I put another question Steve

[Sarra Sakka]

Steve, I want to know if there is a method that allows you to erase the contents of a linear layout

[Sarra Sakka]

I need your help !!

[Ulf Dittmer]

Sarra Sakka wrote:I need your help !!

Possibly. But this is an all-volunteer forum, and demanding attention using exclamation marks isn't going to make people want to help you. Also, bumping posts repeatedly within the space of hours is considered bad behavior. PatienceIsAVirtue, as I've mentioned before. And you still don't seem to grasp that people sometimes sleep, and even when they're not, they might have better things to do than jump to your assistance.

[Sarra Sakka]

Ok, i'm sorry