Flutter 返回按钮返回桌面
想实现点击返回按钮，直接返回桌面，本想 flutter 有方法的话，直接用，然而好像没有，所以采用调用本地方法返回桌面
Android 端 MainActivity 代码如下
package com.dreamreal.example;
import android.os.Bundle;
import io.flutter.app.FlutterActivity;
import io.flutter.plugin.common.MethodChannel;
import io.flutter.plugins.GeneratedPluginRegistrant;
public class MainActivity extends FlutterActivity {
// 字符串常量，回到手机桌面
private final String chanel = "back/desktop";
// 返回到桌面事件
static final String backDesktopEvent = "backDesktop";
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
GeneratedPluginRegistrant.registerWith(this);
MethodChannel(getFlutterView(), chanel).setMethodCallHandler(
(methodCall, result) -> {
if (methodCall.method.equals(backDesktopEvent)) {
moveTaskToBack(false);
result.success(true);
}
}
);
}
}
如果是 kotlin 的话，如下：
package com.dreamreal.example
import android.os.Bundle
import io.flutter.app.FlutterActivity
import io.flutter.plugins.GeneratedPluginRegistrant
import io.flutter.plugin.common.MethodChannel
class MainActivity: FlutterActivity() {
// 字符串常量，回到手机桌面
private final val channel = "back/desktop";
// 返回到桌面事件
private final val backDesktopEvent = "backDesktop";
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
GeneratedPluginRegistrant.registerWith(this)
MethodChannel(flutterView, channel).setMethodCallHandler { methodCall, result ->
if (methodCall.method.equals(backDesktopEvent)) {
moveTaskToBack(false);
result.success(true);
}
}
}
}
Flutter 端代码如下
import 'package:flutter/services.dart';
import 'package:flutter/material.dart';
class BackDesktop {
// 字符串常量，回到手机桌面
static const String chanel = "back/desktop";
// 返回到桌面事件
static const String backDesktopEvent = "backDesktop";
// 返回到桌面方法
static Future<bool> backDesktop() async {
final platform = MethodChannel(chanel);
try {
await platform.invokeMethod(backDesktopEvent);
} on PlatformException catch (e) {
debugPrint(e.toString());
}
return Future.value(false);
}
}
调用时如下
WillPopScope(
onWillPop: BackDesktop.backDesktop,
child: 「这里是你需要拦截返回按钮的页面」
);
「如果这篇文章对你有用,请随意打赏」
Jacobc' Blog
如果这篇文章对你有用,请随意打赏
使用微信扫描二维码完成支付
