首页 > 解决方案 > 无法转换 java.lang.Boolean 类型的对象

问题描述

我在这个主题中查看了很多主题,但我无法在我自己的代码中调整代码。因为显然有一个我看不到的错误。我得到了错误。

EpisodeModel.class

公共类 EpisodeModel {

private String episode;

public EpisodeModel(String episode) {
    this.episode = episode;
}

public EpisodeModel()
{

}

public String getEpisode() {
    return episode;
}

public void setEpisode(String episode) {
    this.episode = episode;
}

@Override
public String toString() {
    return "EpisodeModel{" +
            "episode='" + episode + '\'' +
            '}';
}

}

MyFragment.class

public void check() {
        ref.child("Users").child(user.getUid()).child("Watched").child(seriesTitle).child("Season").child(seasonGet)
                .addChildEventListener(new ChildEventListener() {
                    @Override
                    public void onChildAdded(@NonNull DataSnapshot dataSnapshot, @Nullable String s) {

                        EpisodeModel episodeModel = dataSnapshot.getValue(EpisodeModel.class);
                        Log.i("child",episodeModel.toString());

                        Log.i("test","test2");
                        String st = dataSnapshot.getKey();
                        int no = Integer.parseInt(st);

                        if(!deneme.contains(no))
                        {
                            deneme.add(no);
                        }

                        checkModelTestAdapter.notifyDataSetChanged();
                    }


...onChildChanged..onChildRemoved..onChildMoved..onCancelled..}};

日志猫

Process: com.example.forev.seriesboiler, PID: 6959
    com.google.firebase.database.DatabaseException: Can't convert object of type java.lang.Boolean to type com.example.forev.seriesboiler.Models.EpisodeModel
        at com.google.android.gms.internal.firebase_database.zzkt.zzb(Unknown Source)
        at com.google.android.gms.internal.firebase_database.zzkt.zza(Unknown Source)
        at com.google.firebase.database.DataSnapshot.getValue(Unknown Source)
        at com.example.forev.seriesboiler.Fragments.SeriesDetailsFragment$1.onChildAdded(SeriesDetailsFragment.java:88)
        at com.google.android.gms.internal.firebase_database.zzbt.zza(Unknown Source)
        at com.google.android.gms.internal.firebase_database.zzgx.zzdr(Unknown Source)
        at com.google.android.gms.internal.firebase_database.zzhd.run(Unknown Source)
        at android.os.Handler.handleCallback(Handler.java:751)
        at android.os.Handler.dispatchMessage(Handler.java:95)
        at android.os.Looper.loop(Looper.java:154)

标签: javaandroidfirebasefirebase-realtime-database

解决方案


EpisodeModel episodeModel = dataSnapshot.getValue(EpisodeModel.class);

在这一行中,您会收到错误消息,指出 Boolean 对象无法转换为 EpisodeModel。如果您将该子项的值设置为truefalse不带双引号),则可能会出现这种情况。再次查看并尝试在要设置为子值的“true”“false”周围添加双引号。


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