android - 尝试在空对象引用上调用接口(interface)方法 'boolean com.google.common.util.concurrent.ListenableFuture.cancel(boolean)'

Question

我试图弄清楚如何从 Wear OS 上的健康服务获取传感器数据。
我正在尝试从 Passive Data Sample 运行样本 ( official guide )在 Emulator for Wear OS API 30 上(他在 Beta Android Studio Arctic Fox 中可用)，但我收到此错误:

2021-07-02 16:55:54.041 7172-7200/com.example.passivedata E/AndroidRuntime: FATAL EXCEPTION: DefaultDispatcher-worker-1
Process: com.example.passivedata, PID: 7172
java.lang.NullPointerException: Attempt to invoke interface method 'boolean com.google.common.util.concurrent.ListenableFuture.cancel(boolean)' on a null object reference
    at android.os.Parcel.createExceptionOrNull(Parcel.java:2392)
    at android.os.Parcel.createException(Parcel.java:2370)
    at android.os.Parcel.readException(Parcel.java:2353)
    at android.os.Parcel.readException(Parcel.java:2295)
    at androidx.health.services.client.impl.IPassiveMonitoringApiService$Stub$Proxy.registerDataCallback(IPassiveMonitoringApiService.java:318)
    at androidx.health.services.client.impl.ServiceBackedPassiveMonitoringClient$registerDataCallbackInternal$serviceOperation$1.execute(ServiceBackedPassiveMonitoringClient.kt:122)
    at androidx.health.services.client.impl.ipc.Client$3.execute(Client.java:222)
    at androidx.health.services.client.impl.ipc.internal.ServiceConnection.execute(ServiceConnection.java:243)
    at androidx.health.services.client.impl.ipc.internal.ServiceConnection.enqueue(ServiceConnection.java:200)
    at androidx.health.services.client.impl.ipc.internal.ConnectionManager.handleMessage(ConnectionManager.java:123)
    at android.os.Handler.dispatchMessage(Handler.java:102)
    at android.os.Looper.loop(Looper.java:223)
    at android.os.HandlerThread.run(HandlerThread.java:67)

有没有人遇到过类似的问题？

Answer 1

在您的 android/app/build.gradle 文件中将 enableHermes 从 false 更改为 true

project.ext.react = [
    enableHermes: true
]

在 android/app/src/main/java/com/yourProjectName/MainApplication.java 中添加这些行

import com.facebook.react.bridge.JSIModulePackage;
import com.swmansion.reanimated.ReanimatedJSIModulePackage;

@Override
protected JSIModulePackage getJSIModulePackage() {
    return new ReanimatedJSIModulePackage();
}
//if this is not exist then also add this
@Override
protected String getJSMainModuleName() {
    return "index";
}

并重建项目