Question

我在表单中有五个字段，并且在验证错误消息和浮动标签上工作正常，但在我在特定requestFocus()对象上调用TextInputLayout方法时出现错误，则不是聚焦。

代码段：

                BetterSpinner Spinner_material = (BetterSpinner)rfqItem.findViewById(R.id.Spinner_material);
            if(Spinner_material.getText()!=null && Spinner_material.getText().toString().length()>0)
            {
                TextInputLayout_category.setError(null);
                TextInputLayout_category.setErrorEnabled(false);
            }
            else
            {
                if(isReporting)
                {
                    TextInputLayout_category.setErrorEnabled(true);
                    TextInputLayout_category.setError(baseActivity.getString(R.string.addrfq_validationerror_material_category));
                    TextInputLayout_category.requestFocus();
                }
                flag=false;
            }

XML代码段：

<android.support.design.widget.TextInputLayout
            android:id="@+id/TextInputLayout_category"
            android:layout_width="match_parent"
            android:layout_height="wrap_content">
            <com.power2sme.android.utilities.customviews.BetterSpinner
                android:id="@+id/Spinner_material"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:hint="@string/addrfq_hint_sku_category"
                android:imeOptions="actionNext"
                android:inputType="textNoSuggestions"
                android:singleLine="true"/>
        </android.support.design.widget.TextInputLayout>

BetterSpinner是第三方库，它源自AutoCompleteTextView。

Answer 1

我将举一个在我的应用程序中运行的示例。

private boolean validatePassword() {
        if (inputPassword.getText().toString().trim().isEmpty()) {
            inputLayoutPassword.setErrorEnabled(true);
            inputLayoutPassword.setError(getString(R.string.err_msg_password));
            requestFocus(inputPassword);
            return false;
        } else {
            inputLayoutPassword.setError(null);
            inputLayoutPassword.setErrorEnabled(false);
        }

        return true;
    }


private void requestFocus(View view) {
        if (view.requestFocus()) {
            getWindow().setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_STATE_ALWAYS_VISIBLE);
        }
    }

修改

将我的requestFocus方法添加到您的代码中并尝试以下代码：

BetterSpinner Spinner_material = (BetterSpinner)rfqItem.findViewById(R.id.Spinner_material); if(Spinner_material.getText()!=null && Spinner_material.getText().toString().length()>0) { TextInputLayout_category.setError(null); TextInputLayout_category.setErrorEnabled(false); } else { if(isReporting) { TextInputLayout_category.setErrorEnabled(true); TextInputLayout_category.setError(baseActivity.getString(R.string.addrfq_validationerror_material_category)); requestFocus(Spinner_material); } flag=false; }

Answer 2

请求视图焦点时：

private void requestFocus(View view) {
    if (view.requestFocus()) {
        yourcoordinatorlayout.clearFocus();
        view.requestFocus();
        getWindow().setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_STATE_ALWAYS_VISIBLE);
    }
}

清除CoordinatorLayout中的所有焦点时：

private void clearFocusFromAll() {
    yourcoordinatorlayout.clearFocus();
}

在你身上Activity声明CoordinatorLayout赞：

CoordinatorLayout yourcoordinatorlayout=(CoordinatorLayout)findViewById(R.id.registerCoordinatorLayout);

xml就像：

<?xml version="1.0" encoding="utf-8"?>
<android.support.design.widget.CoordinatorLayout     
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"
android:fitsSystemWindows="true"
android:id="@+id/registerCoordinatorLayout"
tools:context=".activity.RegisterActivity">

<android.support.design.widget.AppBarLayout
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:theme="@style/AppTheme3.AppBarOverlay">

    <android.support.v7.widget.Toolbar
        android:id="@+id/toolbar"
        android:layout_width="match_parent"
        android:layout_height="?attr/actionBarSize"
        android:background="?attr/colorPrimary"
        app:popupTheme="@style/AppTheme3.PopupOverlay" />

</android.support.design.widget.AppBarLayout>

<!-- your views will be here, you can add nestedscrollview,layouts etc. -->
<include layout="@layout/content_register" />

</android.support.design.widget.CoordinatorLayout>

如果出错，如何以编程方式请求专注于TextInputLayout？

2 个答案:

修改