Sometimes you may need to make a TextView (label) look a little transparent to make emphasis on other parts of your UI. The .setAlpha() function on TextView is not supported after later in the SDK. Here’s a static workaround you can place on some sort of UIUtils class you may have in your project.<\/p>\n
[java]
\n \/**
\n * Android devices with SDK below target=11 do not support textView.setAlpha().
\n * This is a work around.
\n * @param v – the text view
\n * @param alpha – a value from 0 to 255. (0=transparent, 255=fully visible)
\n *\/
\n public static void setTextViewAlpha(TextView v, int alpha) {
\n v.setTextColor(v.getTextColors().withAlpha(alpha));
\n v.setHintTextColor(v.getHintTextColors().withAlpha(alpha));
\n v.setLinkTextColor(v.getLinkTextColors().withAlpha(alpha));<\/p>\n
Drawable[] compoundDrawables = v.getCompoundDrawables();
\n for (int i=0 ; i < compoundDrawables.length; i++) {\n Drawable d = compoundDrawables[i];\n if (d != null) {\n d.setAlpha(alpha);\n }\n }\n \n }\n[\/java]\n\nEnjoy, and above all\nCODE!\n<\/p>\n","protected":false},"excerpt":{"rendered":"
Sometimes you may need to make a TextView (label) look a little transparent to make emphasis on other parts of your UI. The .setAlpha() function on TextView is not supported after later in the SDK. Here’s a static workaround you can place on some sort of UIUtils class you may have in your project. [java] […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":false,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[1],"tags":[1434,1437,1203,583],"class_list":["post-2887","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-android","tag-code","tag-fragmentation","tag-java"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p5Unzf-Kz","jetpack-related-posts":[{"id":1814,"url":"https:\/\/www.gubatron.com\/blog\/android-making-a-textview-scrollable\/","url_meta":{"origin":2887,"position":0},"title":"Android: Making a TextView Scrollable","author":"gubatron","date":"April 19, 2010","format":false,"excerpt":"I needed a TextView to take the rest of the screen realstate. This TextView would behave as a logging component. I tried using android:singleLine=\"false\" but that didn't cut it. What I did: Add a ScrollView (with android:fillViewport=\"true\" and android:layout_weight=\"1\"), then add a LinearLayout (yup...), and then add the TextView to\u2026","rel":"","context":"In "Android"","block_context":{"text":"Android","link":"https:\/\/www.gubatron.com\/blog\/category\/android\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":3616,"url":"https:\/\/www.gubatron.com\/blog\/codejava-argb_8888-pixel-abstraction\/","url_meta":{"origin":2887,"position":1},"title":"[CODE\/JAVA] ARGB_8888 Pixel Abstraction","author":"gubatron","date":"December 4, 2016","format":false,"excerpt":"This is one of the ways you can decode Pixel colors out of the integers you get from Android Pixels. ARGB_8888, stands for Alpha, Reg, Green, Blue. The 8's stand for the number of bits per channel. In Android, signed int's are used to represent pixel's alpha\/color information. Since Android's\u2026","rel":"","context":"In "Code"","block_context":{"text":"Code","link":"https:\/\/www.gubatron.com\/blog\/category\/code\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":2941,"url":"https:\/\/www.gubatron.com\/blog\/java-how-to-get-all-the-files-inside-a-folder-and-its-subfolders-without-recursion\/","url_meta":{"origin":2887,"position":2},"title":"java: How to get all the files inside a folder and its subfolders without recursion","author":"gubatron","date":"March 19, 2013","format":false,"excerpt":"Most programmers will do this in a recursive fashion, but doing that is putting yourself at risk of hitting a stack overflow error, and it's 20% slower (according to my tests). Here's my first implementation of a method that will return just the files (cause I didn't need the folders,\u2026","rel":"","context":"In "Code"","block_context":{"text":"Code","link":"https:\/\/www.gubatron.com\/blog\/category\/code\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":2138,"url":"https:\/\/www.gubatron.com\/blog\/java-how-to-create-dynamic-pngs-jpgs-gifs\/","url_meta":{"origin":2887,"position":3},"title":"Java: How to create dynamic PNGs, JPGs, GIFs.","author":"gubatron","date":"February 14, 2010","format":false,"excerpt":"Sometimes you need to create graphics, or compose images and have them saved as regular PNGs, JPEGs or GIFs. Here's a quick and dirty reference of how to do it with BufferedImages, Graphics2D and javax.imageio.*. Very straightforward. [java] import java.awt.Color; import java.awt.Graphics2D; import java.awt.image.BufferedImage; import java.io.File; import java.io.IOException; import javax.imageio.ImageIO;\u2026","rel":"","context":"In "Code"","block_context":{"text":"Code","link":"https:\/\/www.gubatron.com\/blog\/category\/code\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":239,"url":"https:\/\/www.gubatron.com\/blog\/ubunteros-check-this-out\/","url_meta":{"origin":2887,"position":4},"title":"Ubunteros, Check this out","author":"gubatron","date":"January 18, 2006","format":false,"excerpt":"Dapper Flight3 CD is out (warning: try at your own risk - this is an alpha release - not meant for production machines)","rel":"","context":"In "Gubatron"","block_context":{"text":"Gubatron","link":"https:\/\/www.gubatron.com\/blog\/category\/gubatron\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":3020,"url":"https:\/\/www.gubatron.com\/blog\/how-to-avoid-android-compilationbuilding-issues-setting-up-the-eclipse-buildpath-correctly\/","url_meta":{"origin":2887,"position":5},"title":"How to avoid Android compilation\/building issues – Setting up the Eclipse Buildpath correctly","author":"gubatron","date":"May 21, 2013","format":false,"excerpt":"This post is the product of about 48 hours of not being able to work on what I was supposed to be working because I had to deal with build issues in Eclipse. 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