Question

[错误]

Fatal Exception: java.lang.RuntimeException: Unable to start activity ComponentInfo{com.mypackage/folders.views.activity.MainActivity$17}: 
android.os.BadParcelableException: Parcelable protocol requires a Parcelable.Creator object called CREATOR on class

我从下面的代码中获取BadParcelableException，但不知道为什么得到此信息。我在一个片段的onCreateView中调用此代码。神秘的部分是它不会一直崩溃。我现在完全无助。如果您有一些提示或示例，我希望您能收到答复！

final BigItem bigItem = getArguments().getParcelable("big_item"); ← I get error at this code

我通过此功能将包裹放入了芽，但我不认为这是原因。

public static BigFragment newInstance(@NonNull final BigItem bigItem, @NonNull final BigListener eventListener) {
        final BigFragment frag = new BigFragment();
        Bundle args = new Bundle();
        args.putParcelable("big_item", bigItem);
        frag.setArguments(args);
        return frag;
}

这是BigItem的代码如下。

public class BigItem implements Parcelable {


    public long id;

    public String image;

    public String text;

    public String web;

    public BigItem() {

    }

    protected BigItem(Parcel in) {
        id = in.readLong();
        image = in.readString();
        text = in.readString();
        web = in.readString();
    }

    public static final Creator<BigItem> CREATOR = new Creator<BigItem>() {
        @Override
        public BigItem createFromParcel(Parcel in) {
            return new BigItem(in);
        }

        @Override
        public BigItem[] newArray(int size) {
            return new BigItem[size];
        }
    };

    @Override
    public int describeContents() {
        return 0;
    }

    @Override
    public void writeToParcel(Parcel par, int flags) {
        par.writeLong(id);
        par.writeString(image);
        par.writeString(text);
        par.writeString(web);
    }
}

以下带有FragmentTransaction的方法位于我的MainActivity中

private void addBigFragment(@NonNull final BigItem bigItem, @NonNull final BigFragment.BigEventListener eventListener) {
        final FragmentManager fragmentManager = getSupportFragmentManager();
        rmBigFragment(fragmentManager);

        final FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();
        mBigFragment = BigFragment.newInstance(bigItem, eventListener);
        fragmentTransaction.replace(R.id.main_big_layout_fragment, mBigFragment, BigFragment.TAG);
        fragmentTransaction.commit();
}

Answer 1

可能与本文重复：How to use Parcelable in fragment for getting data?

我看到了您的代码，未发现错误。您说“ 它不会一直崩溃”，让我明白您没有插入异常。如果是我，我会写信；

Bundle bundle = getArguments();
if (bundle != null) {
    BigItem bigItem = bundle.getParcelable("big_item");
}

因为有时片段会在没有参数的情况下恢复。

来自Bundle的getParcelable有时会在Java android中导致BadParcelableException

1 个答案: