I want to cast and ImageView to RelativeLayout. Because the RelativeLayout is the parent View and there are many images as Child views in this. So I have written code to download image and set it to the Image view. But the case here i want to set this downloaded image as background of the parent view that is of RelativeLayout.
RelativeLayout layout = (RelativeLayout) findViewById(R.id.bg_image);
ImageView bgImage=(ImageView) findViewById(R.id.bground_image);
downloader = new ImageDownloader();
downloader.download(item.imageurl(), bgImage);
/// Image is now set in bgImage//
///////// Now here i want bgImage to be set as a background of layout////
thankx in advance
To set a background image you can use something like
layout.setBackground(new BitmapDrawable(<your image>));
Best way I think is take one another Imageview with same dimensions as Relativelayout(may be fill parent) with scaletype fitxy and set the image to this as you are doing lazy loding and cant pass that relativelayout to loader....... this fitxy will work as background of parent layout
Or another way is change your downloder code to accept relative layout and set background once you have the image
Just add the image to the background of RelativeLayout. It should be 1st in order to be behind all other views in the layout. Then you can use it with code that expects an ImageView.
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent">
<ImageView android:id="#+id/an_image"
android:layout_width="match_parent"
android:layout_height="match_parent"/>
<!--other views go here-->
</RelativeLayout>
And no, you can't cast between these types, obviously. This is Java!
No this is simply not possible because these are completely different types.
You can cast any RelativeLayout or ImageView to View, because this is the base class for all views.
But what you are trying to do should be a little different. You can inflate the ImageView from the RelativeLayout because it is the parent.
I will add a code snippet later.
Update :
// First inflate your layout
View layout = (View)findViewById(R.layout.relativelayout);
// Then inflate the imageview from the layout
ImageView imgview = (ImageView)layout.findViewById(R.id.bground_image);
// Then do your download logic with the imageview
downloader = new ImageDownloader();
downloader.download(item.imageurl(), imgview);
Let me know if this works ;).
Related
I'd like to fill dynamic ImageViews in a LinearLayout. In addition i like to include at the top of every ImageView a TextView. Implemeting this in a static way with the xml file is no problem but I don't got any idea how to implement this problem?
For example I select 5 pictures out of the gallery and show all pics side by side. At the top of every pic you can see the name of the pic.
[EDIT]
LayoutInflater inflatter=(LayoutInflater)this.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
LinearLayout myLayout = (LinearLayout)findViewById(R.id.mylinlayout);
// AbsoluteLayoute has got an ImageView and a TextView
AbsoluteLayout test = (AbsoluteLayout)inflatter.inflate(R.layout.test2, null, false);
TextView texttest = (TextView)test.findViewById(R.id.name);
ImageView image=(ImageView)test.findViewById(R.id.image);
texttest.setText("test");
myLayout.addView(test);
Sounds like you're trying to make a scrollabe list, where each item in the list is a picture and a title text, right?
Have you thought about using an ArrayAdapter in a ListView and in the adapter's getView() you can inflate a layout file that contains an ImageView and a TextView?
You could create a custom layout in xml with the ImageView and TextView arranged the way you want for each item.
AbsoluteLayout
TextView (above ImageView)
ImageView
Then, as you dynamically get the images, you inflate this custom layout using a LayoutInflater and assign the TextView with the desired text and the ImageView with the desired image. Next, you take the inflated view and add it as a child to the LinearLayout. Iterate through your images and do this and you should have what the desired appearance.
Edit: If you have many images that might require scrolling, you would have to wrap the LinearLayout in a ScrollView to allow scrolling if the LinearLayout gets too large.
As someone else just mentioned, a ListView will take custom xml layouts and inflate them the same way using adapters and such, and it will handle scrolling for you. ListView link and example.
I just wanted to insert an image in linear layout similar to this
Can anyone help me with this???
You are probably looking for ImageButton since your picture shows something similar to that.
Alternatively, take a look at ImageView
set layout's orientation to horizontal, then add 4 images in xml, one after another, add ids like image1, image2 etc, then call them in your onCreate like ImageView image
ImageView image1 = (ImageView) findViewById(R.id.image1)
and so on, then you can either set "src" attribute in yoru xml or say image1.setImageBitmap or any other method available in ImageView class to set the image you want from your res/drawable/
you can use ImageButton in horizontal LinearLayout
make background of the ImageButton #null
then put the margins between them
I'm trying to draw an image into a LinearLayout, or TableRow, but I'm having already a XML FILE (I want to draw inside some LinearLayout). I don't know exactly how to do it. I was trying this:
TableRow mytable = (TableRow) findViewById(R.id.tablatexto);
ImageView myImage = (ImageView) findViewById(R.drawable.personaje1);
mytable.addView(myImage);
Thanks
Editing: I want to explaint it better. What I want to is creating a animation drawing images depending of a thread. So, I want to draw to some in LinearLayout from the Activity.
If you wan't to add dynamic layout in the container layout then you can use containerLayout.addView(childView);
childView is the dynamic layout which you can create using code or you can get a view of the layout using LayoutInflater class.
I have an image view in my Layout
<ImageView
android:id="#+id/img"
android:layout_width="340dip"
android:layout_height="240dip"
android:layout_marginBottom="60dip"/>
I am setting an img.setimageresource(R.drawable.apple);
Now what I need is I have a i value which is incrementing in onclick of a button as soon as i value is incremented, image should be displayed and its is displaying. Again when i value is incremented it should display the same image just below the 1st image and so on...
Make another xml having Imageview only. and remove this Imageview from parent xml. Now use inflater to inflate the imageview xml and add this view in parent xml's layout.
EDIT:
First make two layouts, parent and child. Parent layout has only on linearlayout(vertical) and child layout has only one ImageView. Now Use an Inflater like this:
LayoutInflater inflater = (LayoutInflater)getSystemServices(Context.Layout_InflaterService);
Make a view of child layout like this:
View view = inflater.inflate(R.layout.child,null);
Add this view to parent xml's layout.
layout.add(view);
Hope its clear now.
I wanna make a Gallery, with a picture in the background and a textfield with invisible background... So I can see the text and the Image behind.
I already made the Gallery but i cant figure out how to put text in the foreground.
You create a custom adapter to use for your gallery view, see Hello Gallery tutorial
In the method getView() you have two different ways to achieve the same result:
A. Make an ImageView and a TextView and set the image and text:
ImageView iv = new ImageView(context); //and so on, remember to set the LayoutParams etc to fit your design.
Make a RelativeLayout and add the ImageView and TextView to it
Return the RelativeLayout.
B. Declare a layout in xml, with a RelativeLayout containing a TextView and an ImageView
In getView, inflate this layout, and using
inflatedLayout.findViewById(R.id.myTextView); //and so on
set the text and image and return the layout.