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When I was changing the image width I pressed match_parent but in stead of making the picture bigger it made it smaller
I did everything the exact same as the guy in the video but it just made the image to 176 dp so I had to manually change it to 368 dp. Is that ok?
I have found a way around this.
If you set the 'layout_width' and 'layout_height' for 'titleImageView' both to 'match_constraint' using the design window. And then go into the text window and find where it has added 'android:layout_width="0dp"' and 'android:layout_height="0dp"'. Then change the '0dp' values to 'match_parent'. Then check to make sure that 'android:scaleType' is set to 'centerCrop'.
That should all work as it is shown in the video. I have no idea why the match_parent option isn't displayed like in the video. It might be a version problem. I am running Android Studio 3.0.1