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首页 > 解决方案 > 问题：一些消息已被简化；使用 -Xdiags:verbose 重新编译以获得完整输出

java - 问题：一些消息已被简化；使用 -Xdiags:verbose 重新编译以获得完整输出

问题描述

package com.example.flutter_app;

import android.os.Bundle;
import io.flutter.app.FlutterActivity;
import io.flutter.plugins.GeneratedPluginRegistrant;
import io.flutter.plugin.common.MethodCall;
import io.flutter.plugin.common.MethodChannel;
import io.flutter.plugin.common.MethodChannel.Result;
import io.flutter.plugin.common.MethodChannel.MethodCallHandler;
import android.content.ContextWrapper;
import android.content.Intent;
import android.content.IntentFilter;
import android.os.BatteryManager;
import android.os.Build.VERSION;
import android.os.Build.VERSION_CODES;
import android.os.Bundle;

public class MainActivity extends FlutterActivity {
  @Override
  protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    GeneratedPluginRegistrant.registerWith(this);

    new MethodChannel(getFlutterView(), "course.flutter.dev/battery").setMethodCallHandler(
      new MethodCallHandler() {
        @Override
        public void onMethodCall(MethodCall call, Result result) {
          if (call.method.equals("getBatteryLevel")) {
            int batteryLevel = getBatteryLevel();
            if (batteryLevel != -1) {
              result.success(batteryLevel);
            } else {
              result.error("UNAVAILABLE", "Could not fetch battery level.", null);
            }
          } else {
            result.notImplemented();
          }
        }
      }
    );
  }

  private int getBatteryLevel() {
    int batteryLevel = -1;
    if (VERSION.SDK_INT >= VERSION_CODES.LOLLIPOP) {
      BatteryManager batteryManager = (BatteryManager) getSystemService(BATTERY_SERVICE);
      batteryLevel = batteryManager.getIntProperty(BatteryManager.BATTERY_PROPERTY_CAPACITY);
    } else {
      Intent intent = new ContextWrapper(getApplicationContext()).registerReceiver(null, new IntentFilter(Intent.ACTION_BATTERY_CHANGED));
      batteryLevel = (intent.getIntExtra(BatteryManager.EXTRA_LEVEL, -1) * 100) / intent.getIntExtra(BatteryManager.EXTRA_SCALE, -1);
    }
    return batteryLevel;
  }
}

我的java代码在上面给出。我正在学习编写本机 Java 代码的教程，以获取我的颤振应用程序中的电池电量。

但它给了我下面给出的错误：（调试控制台输出）

Launching lib\main.dart on LDN L21 in debug mode...
lib\main.dart:1
C:\Users\ARPC\flutter_app\android\app\src\main\java\com\example\flutter_app\MainActivity.java:22: error: incompatible types: MainActivity cannot be converted to FlutterEngine
    GeneratedPluginRegistrant.registerWith(this);
                                           ^
Note: Some messages have been simplified; recompile with -Xdiags:verbose to get full output
1 error

FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':app:compileDebugJavaWithJavac'.
> Compilation failed; see the compiler error output for details.

* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.

* Get more help at https://help.gradle.org

BUILD FAILED in 3s
Exception: Gradle task assembleDebug failed with exit code 1
Exited (sigterm)

请告诉我我做错了什么我认为我必须将详细信息变为真实但如果有人知道解决方案我不知道该怎么做请告诉我。

标签： javaandroidflutternative-code

解决方案

删除清单文件中的以下代码

meta-data
android:name="flutterEmbedding"
android:value="2"

并运行它会工作的项目

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