Question

无法转换为com.google.android.gms.location.LocationListener我的主要问题是，在通过登录后不会潜入第二个活动应用程序崩溃，有些人帮我识别问题所在它来自我的布局还是......！！

locgat

E/UncaughtException: java.lang.ClassCastException: com.logo.tm.androiddriverapp.Welcome cannot be cast to com.google.android.gms.location.LocationListener
                         at com.logo.tm.androiddriverapp.Welcome.startLocationUpdate(Welcome.java:532)
                         at com.logo.tm.androiddriverapp.Welcome.onConnected(Welcome.java:571)
                         at com.google.android.gms.common.internal.zzae.zzk(Unknown Source)
                         at com.google.android.gms.common.api.internal.zzba.zzj(Unknown Source)
                         at com.google.android.gms.common.api.internal.zzao.zzaie(Unknown Source)
                         at com.google.android.gms.common.api.internal.zzao.onConnected(Unknown Source)
                         at com.google.android.gms.common.api.internal.zzbi.onConnected(Unknown Source)
                         at com.google.android.gms.common.api.internal.zzt.onConnected(Unknown Source)
                         at com.google.android.gms.common.internal.zzac.onConnected(Unknown Source)
                         at com.google.android.gms.common.internal.zzn.zzakr(Unknown Source)
                         at com.google.android.gms.common.internal.zze.zzw(Unknown Source)
                         at com.google.android.gms.common.internal.zzi.zzaks(Unknown Source)
                         at com.google.android.gms.common.internal.zzh.handleMessage(Unknown Source)
                         at android.os.Handler.dispatchMessage(Handler.java:111)
                         at android.os.Looper.loop(Looper.java:194)
                         at android.app.ActivityThread.main(ActivityThread.java:5631)
                         at java.lang.reflect.Method.invoke(Native Method)
                         at java.lang.reflect.Method.invoke(Method.java:372)
                         at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:959)
                         at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:754)
D/FA: Logging event (FE): app_exception(_ae), Bundle[{firebase_event_origin(_o)=crash, firebase_screen_class(_sc)=Welcome, firebase_screen_id(_si)=-5990294920665317261,

这是欢迎的布局代码，不知道是否有一些异常的事情：

<RelativeLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent" >

    <LinearLayout
        android:id="@+id/layout_panel"
        android:orientation="horizontal"
        android:layout_width="match_parent"
        android:layout_height="wrap_content">

        <fragment
            android:id="@+id/place_autocomplete_fragment"
            android:name="com.google.android.gms.location.places.ui.PlaceAutocompleteFragment"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_margin="10dp"
            android:layout_weight="5"/>

    </LinearLayout>

    <fragment
        android:id="@+id/map"
        android:name="com.google.android.gms.maps.SupportMapFragment"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_below="@+id/layout_panel"
        tools:context="com.logo.tm.androidapp.Welcome" />

    <android.support.v7.widget.CardView
        app:cardElevation="10dp"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_alignParentBottom="true" >

        <LinearLayout
            android:orientation="horizontal"
            android:weightSum="10"
            android:layout_margin="16dp"
            android:layout_width="match_parent"
            android:layout_height="wrap_content">
                <com.github.glomadrian.materialanimatedswitch.MaterialAnimatedSwitch
                android:id="@+id/location_switch"
                android:layout_width="0dp"
                android:layout_weight="3"
                android:layout_height="wrap_content"
                app:icon_release="@drawable/ic_location_off"
                app:icon_press="@drawable/ic_location_on"
                app:base_release_color="@color/baseReleaseColor"
                app:base_press_color="@color/basePressColor"
                app:ball_release_color="@color/ballReleaseColor"
                app:ball_press_color="@android:color/white"  />

            <Button
                android:id="@+id/btn_find_user"
                android:layout_weight="7"
                android:text="FIND RIDERS"
                android:layout_width="0dp"
                android:layout_height="wrap_content" />

        </LinearLayout>
    </android.support.v7.widget.CardView>
</RelativeLayout>

java welcome class 抱歉，我的身体上没有更多的空间，这是代码的链接

https://drive.google.com/file/d/1v6Frd1fHB_m65z2Sg74a9qERS2Llmiyu/view?usp=sharing

Answer 1

替换为：LocationServices.FusedLocationApi.removeLocationUpdates(mGoogleApiClient, (com.google.android.gms.location.LocationListener) this);

用这个：

 LocationServices.FusedLocationApi.removeLocationUpdates(mGoogleApiClient,this);

并替换它：

LocationServices.FusedLocationApi.requestLocationUpdates(mGoogleApiClient,mLocationRequest, (com.google.android.gms.location.LocationListener) this);

用这个：

LocationServices.FusedLocationApi.requestLocationUpdates(mGoogleApiClient,mLocationRequest, this);

我的意思是删除(com.google.android.gms.location.LocationListener)，因为你已经实现了LocationListener，你不需要强制转换。

Answer 2

promlem在您导入的库中位于类的顶部，它应该是 android.location.LocationListener;不导入{{1}}替换此内容。

在第二个活动中潜水会导致位置和位置监听器错误

2 个答案: