Question

我的应用程序崩溃，如果我尝试在我的视图中打开DeatilFragement，则会出现以下错误：

引起：java.lang.IllegalStateException：必需的视图'login' 未找到字段“login”的ID 2131558406。如果这个观点是可选添加'@Nullable'（字段）或'@Optional'（方法）注释。在butterknife.internal.Utils.findRequiredView（Utils.java:92）at butterknife.internal.Utils.findRequiredViewAsType（Utils.java:104）at de.dev.myapp.ui.quote.ArticleDetailFragment_ViewBinding。（ArticleDetailFragment_ViewBinding.java:23） at java.lang.reflect.Constructor.newInstance0（Native Method）at java.lang.reflect.Constructor.newInstance（Constructor.java:430）at butterknife.ButterKnife.createBinding（ButterKnife.java:199）at butterknife.ButterKnife.bind（ButterKnife.java:172）at de.dev.myapp.ui.base.BaseFragment.inflateAndBind（BaseFragment.java:29）在 de.dev.myapp.ui.quote.ArticleDetailFragment.onCreateView（ArticleDetailFragment.java:69）

ArticleDetailFragment_ViewBinding引用此行：

  public ArticleDetailFragment_ViewBinding(ArticleDetailFragment target, View source) {
    this.target = target;

    target.login = Utils.findRequiredViewAsType(source, R.id.login, "field 'login'", TextView.class);

BaseFragment引用这一行：

public View inflateAndBind(LayoutInflater inflater, ViewGroup container, int layout) {
    View view = inflater.inflate(layout, container, false);
    ButterKnife.bind(this, view); // this line

    LogUtil.logD(TAG, ">>> view inflated");
    return view;
}

ArticleDetailFragment引用了这一行：

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
    View rootView = inflateAndBind(inflater, container, R.layout.fragment_article_detail); // this line

    if (!((BaseActivity) getActivity()).providesActivityToolbar()) {
        // No Toolbar present. Set include_toolbar:
        ((BaseActivity) getActivity()).setToolbar((Toolbar) rootView.findViewById(R.id.toolbar));
    }

    if (dummyItem != null) {
        loadBackdrop();
        collapsingToolbar.setTitle(dummyItem.title);
        author.setText(dummyItem.author);
        quote.setText(dummyItem.content);
    }

    return rootView;
}

这就是我选择每个项目移动到详细信息页面的方式

   @Override
    public void onItemSelected(String id) {
        if (twoPaneMode) {
            // Show the quote detail information by replacing the DetailFragment via transaction.
            ArticleDetailFragment fragment = ArticleDetailFragment.newInstance(id);
            getFragmentManager().beginTransaction().replace(R.id.article_detail_container, fragment).commit();
        } else {
            // Start the detail activity in single pane mode.
            Intent detailIntent = new Intent(this, ArticleDetailActivity.class);
            detailIntent.putExtra(ArticleDetailFragment.ARG_ITEM_ID, id);
            startActivity(detailIntent);
        }
    }

Answer 1

这是你的错误：

java.lang.IllegalStateException:
    Required view 'login' with ID 2131558406 for field 'login' was not found.
    If this view is optional add '@Nullable' (fields) or '@Optional' (methods)

这意味着您的ArticleDetailFragment极有可能包含这些行：

@BindView(R.id.login)
private View login;

问题是片段布局中没有属性android:id="@+id/login"的视图。添加此视图（或更正其ID属性），或将View标记为@Nullable。

Android详细信息碎片

1 个答案: