在React Native中旋转整个Android屏幕,可以通过以下步骤实现:
npm install react-native-orientation --save
android/app/src/main/java/com/[your-app-name]/MainActivity.java
文件中,导入react-native-orientation
库,并添加以下代码:import android.content.Intent;
import android.content.pm.ActivityInfo;
import android.os.Bundle;
import com.facebook.react.ReactActivity;
import org.devio.rn.splashscreen.SplashScreen;
import android.content.res.Configuration;
public class MainActivity extends ReactActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
SplashScreen.show(this); // 添加启动屏幕的代码,可选
super.onCreate(savedInstanceState);
}
@Override
public void onConfigurationChanged(Configuration newConfig) {
super.onConfigurationChanged(newConfig);
Intent intent = new Intent("onConfigurationChanged");
intent.putExtra("newConfig", newConfig);
sendBroadcast(intent);
}
@Override
protected void onResume() {
super.onResume();
OrientationUtils.lockOrientationPortrait(this); // 设置默认为竖屏
}
}
android/app/src/main/java/com/[your-app-name]/OrientationUtils.java
文件中,添加以下代码:import android.app.Activity;
import android.content.pm.ActivityInfo;
import android.content.res.Configuration;
public class OrientationUtils {
public static void lockOrientationPortrait(Activity activity) {
activity.setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT);
}
public static void lockOrientationLandscape(Activity activity) {
activity.setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE);
}
public static void unlockOrientation(Activity activity) {
activity.setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_UNSPECIFIED);
}
}
import React, { useEffect } from 'react';
import { NativeModules, DeviceEventEmitter } from 'react-native';
const { OrientationUtils } = NativeModules;
const ScreenRotationExample = () => {
useEffect(() => {
DeviceEventEmitter.addListener('onConfigurationChanged', (event) => {
const { newConfig } = event;
if (newConfig.orientation === 'LANDSCAPE') {
// 屏幕为横屏
OrientationUtils.lockOrientationLandscape();
} else {
// 屏幕为竖屏
OrientationUtils.lockOrientationPortrait();
}
});
return () => {
DeviceEventEmitter.removeAllListeners('onConfigurationChanged');
};
}, []);
return (
// 组件的内容
);
};
export default ScreenRotationExample;
这样,当屏幕方向发生变化时,React Native应用将会旋转整个Android屏幕。请注意,以上代码仅适用于Android平台,对于iOS平台需要使用不同的方法来实现屏幕旋转。
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