CODEWITHSUNDEEP
androidlayoutimageview
Bisclavret
Bisclavret

Reputation: 1331

Change colour of imageView programmatically

I would simply like to change the colour of an imageView object using code, but it appears to be proving a lot more difficult than it sounds.

Here is my xml for the object:

 <ImageView
    android:id="@+id/lifeSquare"
    android:layout_width="50dp"
    android:layout_height="30dp"
    android:background="#2a80b9"
    android:visibility="invisible"
    android:adjustViewBounds="false"
    android:clickable="true"
    android:cropToPadding="false"
    android:padding="0dp"
    android:scaleType="fitStart" />

It's just a blue square, as you can see. I would like to be able to change this line in code:

    android:background="#2a80b9"

That's it! I have read many posts on this topic, the most promising had the following solution:

View someView = findViewById(R.id.lifeSquare);
View root = someView.getRootView();
root.setBackgroundColor(Color.parseColor("#fffff"));

But it doesn't work. It just leaves the colour exactly as it is.

Has anyone done this before, or have any better ideas?

Upvotes: 0

Views: 6326

Answers (4)

Shaffz
Shaffz

Reputation: 1

If you are using hexcode for color and want to set the color as background of image, then this is the kotlin code. 

    val bitmap = Bitmap.createBitmap(30, 30, Bitmap.Config.ARGB_8888)
    val canvas = Canvas(bitmap)
    val colorCode = "#ffffff"
    canvas.drawColor(Color.parseColor(colorCode))
    mImageViewLogo.setImageBitmap(bitmap)

Upvotes: 0

Vicky Mahale
Vicky Mahale

Reputation: 1219

refer this code:

imageView.setColorFilter(imageView.getContext().getResources().getColor(R.color.desired_color), PorterDuff.Mode.SRC_ATOP);

Upvotes: 0

Srishti Roy
Srishti Roy

Reputation: 576

You can save all your color hex codes in color.xml inside value folder of resources

imageView.setBackgroundColor(getResources().getColor(R.color.grey));

Upvotes: 0

Kushal
Kushal

Reputation: 8478

Why are you setting background of root view. Just this statement will work :

ImageView someView = (ImageView) findViewById(R.id.lifeSquare);
someView.setBackgroundColor(Color.parseColor("#ffffff"));

Concern :

One more point is that your imageView has visibility invisible :

android:visibility="invisible"

Why are you setting invisible property to your imageview?

Upvotes: 6

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