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androidimageviewdevice

ImageView displaying in layout but not on actual device

I have an ImageView that I want to display matching the full width of the device, I realized that like this:

<ImageView
    android:id="@+id/home_bar_newvault"
    android:layout_width="wrap_content"
    android:layout_height="40dp"
    android:scaleType="centerCrop"
    android:layout_alignParentBottom="true"
    android:src="@drawable/home_bar" />

The home_bar is a PNG image file with the following dimensions: 2399x254. When I choose to view the Graphical Layout of the UI it displays the imageview correctly at the bottom of the activity. However, when I start the application on my device it won't display the Imageview at all.

Solution

  • Alright I've tried changing the resolution of the image (cutting it in half making it 1000x130), and somehow that fixed the problem. I think Android can't render large images like that directly? I don't know, if you know more about the subject please don't hesitate to reply! Anyway, scaling down the image worked.