78 lines
2.5 KiB
TypeScript
78 lines
2.5 KiB
TypeScript
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import {
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ConfigPlugin,
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withMainActivity,
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AndroidConfig,
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} from '@expo/config-plugins';
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/**
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* 在 MainActivity 中添加 onConfigurationChanged 方法
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* 用于监听系统深色模式变化并通知 React Native
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*/
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const withMainActivityConfigChange: ConfigPlugin = (config) => {
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return withMainActivity(config, async (config) => {
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const { contents } = config.modResults;
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// 检查是否已经添加了 onConfigurationChanged
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if (contents.includes('onConfigurationChanged')) {
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return config;
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}
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// 需要添加的 imports
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const importsToAdd = `import android.content.Intent
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import android.content.res.Configuration`;
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// 需要添加的方法
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const methodToAdd = `
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/**
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* 监听系统配置变化（包括深色模式切换），并广播给 React Native
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* 这对于 Appearance API 正确检测系统主题至关重要
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*/
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override fun onConfigurationChanged(newConfig: Configuration) {
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super.onConfigurationChanged(newConfig)
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val intent = Intent("onConfigurationChanged")
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intent.putExtra("newConfig", newConfig)
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sendBroadcast(intent)
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}
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`;
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let newContents = contents;
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// 添加 imports（在已有 imports 后面）
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if (!newContents.includes('import android.content.Intent')) {
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// 找到最后一个 import 语句
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const importRegex = /import [^\n]+\n/g;
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const imports = newContents.match(importRegex);
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if (imports && imports.length > 0) {
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const lastImport = imports[imports.length - 1];
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const lastImportIndex = newContents.lastIndexOf(lastImport);
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const insertPosition = lastImportIndex + lastImport.length;
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newContents =
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newContents.slice(0, insertPosition) +
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importsToAdd +
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'\n' +
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newContents.slice(insertPosition);
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}
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}
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// 在类体的开头添加 onConfigurationChanged 方法
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// 找到类定义后的第一个方法或属性
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const classBodyRegex = /class MainActivity\s*:\s*ReactActivity\s*\(\)\s*\{([\s\S]*)/;
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const match = newContents.match(classBodyRegex);
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if (match) {
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// 找到 onCreate 方法之前插入
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const onCreateIndex = newContents.indexOf('override fun onCreate');
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if (onCreateIndex !== -1) {
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newContents =
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newContents.slice(0, onCreateIndex) +
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methodToAdd +
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newContents.slice(onCreateIndex);
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}
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}
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config.modResults.contents = newContents;
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return config;
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});
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};
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export default withMainActivityConfigChange;
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