APP<\/a>\u8005\u5176\u4ed6\u64cd\u4f5c\u5bfc\u81f4\u5e94\u7528\u7a0b\u5e8f\u91cd\u542f\u65f6\uff0c\u81ea\u52a8\u4fdd\u7559\u7528\u6237\u7684\u80cc\u666f\u9009\u62e9\u3002<\/p>\n\u793a\u4f8b\u4ee3\u7801\uff1a<\/p>\n
“`xml<\/p>\n<\/p>\n
android:id=”@+id\/background_image”<\/p>\n
android:layout_width=”match_parent”<\/p>\n
android:layout_height=”match_parent”<\/p>\n
android:scaleType=”centerCrop”<\/p>\n
android:src=”@drawable\/default_background”\/><\/p>\n
“`<\/p>\n
2. \u4f7f\u7528 SharedPreferences \u5b58\u50a8\u65b9\u5f0f<\/p>\n
\u8fd9\u79cd\u65b9\u5f0f\u4e3b\u8981\u662f\u9488\u5bf9 App \u7684\u7b80\u5355\u80cc\u666f\u5207\u6362\u5b9e\u73b0\uff0c\u628a\u56fe\u7247\u8d44\u6e90\u5b58\u50a8\u5728\u672c\u5730 SharedPreferences \u4e2d\uff0c\u5f53\u7528\u6237\u9009\u62e9\u66f4\u6362\u80cc\u666f\u65f6\uff0c\u6539\u53d8 SharedPreferences \u4e2d\u5173\u4e8e\u80cc\u666f\u53ef\u9009\u62e9\u7684\u503c\u3002<\/p>\n
\u793a\u4f8b\u4ee3\u7801\uff1a<\/p>\n
“`kotlin<\/p>\n
val sharedPreferences: SharedPreferences = getSharedPreferences(“theme_data”, Context.MODE_PRIVATE)<\/p>\n
val editor = sharedPreferences.edit()<\/p>\n
editor.putInt(“theme_id”, 10)<\/p>\n
editor.apply()<\/p>\n
“`<\/p>\n
3. \u4f7f\u7528\u6570\u636e\u5e93\u7ba1\u7406\u65b9\u5f0f<\/p>\n
\u8fd9\u79cd\u65b9\u5f0f\u4e3b\u8981\u9002\u7528\u4e8e App \u8f83\u4e3a\u590d\u6742\uff0c\u9700\u8981\u52a8\u6001\u751f\u6210\u80cc\u666f\u7684\u60c5\u51b5\u3002\u5c06\u56fe\u7247\u6587\u4ef6\u53ca\u5176\u76f8\u5173\u5c5e\u6027\u8bb0\u5f55\u5728\u6570\u636e\u5e93\u4e2d\uff0c\u67e5\u8be2\u5230\u7528\u6237\u9009\u62e9\u7684\u80cc\u666f\u540e\uff0c\u53ef\u4ee5\u5b9e\u73b0\u52a8\u6001\u751f\u6210\u80cc\u666f\u3002<\/p>\n
\u793a\u4f8b\u4ee3\u7801\uff1a<\/p>\n
“`kotlin<\/p>\n
val background = database.query(“background”)<\/p>\n
.where(“id”, selectedId)<\/p>\n
.first<\/p>\n
<\/figure>\n<\/p>\n()<\/p>\n
view?.setBackgroundColor(background.color)<\/p>\n
“`<\/p>\n
\u603b\u4e4b App \u4e3b\u9898\u80cc\u666f\u5207\u6362\u662f\u4e00\u79cd\u5e38\u89c1\u7684\u7528\u6237\u5b9a\u5236\u5316\u64cd\u4f5c\uff0c\u901a\u8fc7\u5bf9\u5176\u539f\u7406\u548c\u5177\u4f53\u5b9e\u73b0\u65b9\u6cd5\u7684\u4e86\u89e3\uff0c\u53ef\u4ee5\u8ba9\u5f00\u53d1\u8005\u66f4\u65b9\u4fbf\u5feb\u6377\u7684\u5b9e\u73b0\u8fd9\u9879\u529f\u80fd\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u968f\u7740\u79fb\u52a8\u8bbe\u5907\u7684\u666e\u53ca\u548c\u4eba\u4eec\u5bf9\u4e8e\u4e2a\u6027\u5316\u9700\u6c42\u7684\u4e0d\u65ad\u589e\u957f\uff0c\u66f4\u6362\u4e3b\u9898\u80cc\u666f\u5df2\u7ecf\u6210\u4e3a\u4e86\u5f88\u591a App \u7684\u5fc5\u5907\u529f\u80fd\u4e4b\u4e00\u3002\u672c\u6587\u5c06\u4ecb\u7ecd App \u4e3b\u9898\u80cc\u666f\u5207\u6362\u7684\u539f\u7406\u548c\u4e00\u4e9b\u5177\u4f53\u7684\u5b9e\u73b0\u65b9\u5f0f\u3002\u4e00\u3001\u539f\u7406App \u4e3b\u9898\u80cc\u666f\u5207\u6362\u7684\u539f\u7406\u4e3b<\/p>\n","protected":false},"author":7,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[3632,160,20,331,1629],"topic":[],"class_list":["post-4170","post","type-post","status-publish","format-standard","hentry","category-kaifaapp","tag-app","tag-160","tag-20","tag-uos","tag-1629"],"_links":{"self":[{"href":"https:\/\/www.zhidianwl.net\/zhidianwl\/wp-json\/wp\/v2\/posts\/4170","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.zhidianwl.net\/zhidianwl\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.zhidianwl.net\/zhidianwl\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.zhidianwl.net\/zhidianwl\/wp-json\/wp\/v2\/users\/7"}],"replies":[{"embeddable":true,"href":"https:\/\/www.zhidianwl.net\/zhidianwl\/wp-json\/wp\/v2\/comments?post=4170"}],"version-history":[{"count":0,"href":"https:\/\/www.zhidianwl.net\/zhidianwl\/wp-json\/wp\/v2\/posts\/4170\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.zhidianwl.net\/zhidianwl\/wp-json\/wp\/v2\/media?parent=4170"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.zhidianwl.net\/zhidianwl\/wp-json\/wp\/v2\/categories?post=4170"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.zhidianwl.net\/zhidianwl\/wp-json\/wp\/v2\/tags?post=4170"},{"taxonomy":"topic","embeddable":true,"href":"https:\/\/www.zhidianwl.net\/zhidianwl\/wp-json\/wp\/v2\/topic?post=4170"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}