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ANDROID-> imageview的透明背景

[英]ANDROID -> transparent background for imageview

原文 2015-04-13 09:45:46 0 1 android/ background/ imageview/ png/ transparent

In my application I have a CameraPreview . 在我的应用程序中，我有一个CameraPreview 。 I would like to add an imageView over it so I need the imageView to have a transparent background. 我想在上面添加一个imageView，所以我需要imageView具有透明的背景。 The src of the imageView will be a png so I could see the CameraPreview underneath. imageView的src将是png，因此我可以在下面看到CameraPreview。

However, it's like I've tried everything to manage the background of the ImageView Transparent: 但是，就像我已经尽一切努力来管理ImageView Transparent的背景一样：

change the alpha value (in the code AND in the xml file) 更改Alpha值（在代码AND和xml文件中）
change the background to @null then to #00000000 (in the code AND in the xml file for both) 将背景更改为@null，然后更改为#00000000 （在代码AND和xml文件中）

But it still not work ! 但这仍然行不通！

Did I miss anything ? 我错过了什么吗？

Please ask if you need parts of my code. 请询问您是否需要我的代码的一部分。 P P

1 个解决方案

Ok thanks for your answears but I have managed to solve my problem: I gave a random color to the background of my layout (for example #FF34035544) and I changed the two first letters to 00 which made #0034035544. 好的，谢谢您的回答，但是我已经设法解决了我的问题：我为布局的背景设置了随机颜色（例如，＃FF34035544），然后将前两个字母更改为00，这使＃0034035544变了。 It was finally very simple ! 终于很简单！