{"id":21629,"date":"2024-03-15T22:22:40","date_gmt":"2024-03-15T22:22:40","guid":{"rendered":"https:\/\/www.silicloud.com\/blog\/introduction-to-basic-usage-of-layer-list\/"},"modified":"2024-03-21T20:56:37","modified_gmt":"2024-03-21T20:56:37","slug":"introduction-to-basic-usage-of-layer-list","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/blog\/introduction-to-basic-usage-of-layer-list\/","title":{"rendered":"Introduction to basic usage of layer-list"},"content":{"rendered":"<p>The layer-list is a type of Drawable in Android that is used to define a Drawable object made up of multiple layers. Each layer can be a color, shape, or image.<\/p>\n<p>Layer-list allows multiple layers to be stacked on top of each other in a specific order, creating complex Drawable effects. These layers can be different shapes, colors, and images, and their position, size, scale, and transparency can be controlled by setting different layer attributes.<\/p>\n<p>Here is an example code for a layer-list:<\/p>\n<pre class=\"post-pre\"><code><span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">layer-list<\/span> <span class=\"hljs-attr\">xmlns:android<\/span>=<span class=\"hljs-string\">\"http:\/\/schemas.android.com\/apk\/res\/android\"<\/span>&gt;<\/span>\r\n    <span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">item<\/span>\r\n        <span class=\"hljs-attr\">android:drawable<\/span>=<span class=\"hljs-string\">\"@color\/colorPrimary\"<\/span> \/&gt;<\/span> <span class=\"hljs-comment\">&lt;!-- \u7b2c\u4e00\u4e2a\u56fe\u5c42\uff0c\u4f7f\u7528\u989c\u8272\u4f5c\u4e3a\u80cc\u666f --&gt;<\/span>\r\n    <span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">item<\/span>\r\n        <span class=\"hljs-attr\">android:drawable<\/span>=<span class=\"hljs-string\">\"@drawable\/ic_launcher_background\"<\/span>\r\n        <span class=\"hljs-attr\">android:gravity<\/span>=<span class=\"hljs-string\">\"center\"<\/span> \/&gt;<\/span> <span class=\"hljs-comment\">&lt;!-- \u7b2c\u4e8c\u4e2a\u56fe\u5c42\uff0c\u4f7f\u7528\u56fe\u7247\uff0c\u5e76\u8bbe\u7f6e\u5c45\u4e2d\u663e\u793a --&gt;<\/span>\r\n<span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">layer-list<\/span>&gt;<\/span>\r\n<\/code><\/pre>\n<p>In this example, the layer-list includes two layers. The first layer uses a color as the background, while the second layer uses an image as the background and is set to be displayed in the center.<\/p>\n<p>Supported attributes of layer-list include:<\/p>\n<ol>\n<li>android:drawable: specifies the Drawable resource for a layer, which can be a color, shape, or image.<\/li>\n<li>android:id: a unique identifier assigned to a layer.<\/li>\n<li>android:gravity: specifies the alignment of the layer within the parent container, such as center, top, bottom, etc.<\/li>\n<li>android:left, android:top, android:right, and android:bottom: specify the boundaries of the layer within the parent container.<\/li>\n<\/ol>\n<p>By setting these properties, various different Drawable effects can be created. The layer-list is commonly used for creating buttons, backgrounds, and state selectors.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The layer-list is a type of Drawable in Android that is used to define a Drawable object made up of multiple layers. Each layer can be a color, shape, or image. Layer-list allows multiple layers to be stacked on top of each other in a specific order, creating complex Drawable effects. These layers can be [&hellip;]<\/p>\n","protected":false},"author":5,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_import_markdown_pro_load_document_selector":0,"_import_markdown_pro_submit_text_textarea":"","footnotes":""},"categories":[1],"tags":[],"class_list":["post-21629","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.5 (Yoast SEO v21.5) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Introduction to basic usage of layer-list - Blog - Silicon Cloud<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.silicloud.com\/blog\/introduction-to-basic-usage-of-layer-list\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Introduction to basic usage of layer-list\" \/>\n<meta property=\"og:description\" content=\"The layer-list is a type of Drawable in Android that is used to define a Drawable object made up of multiple layers. 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