Question

我在EditText内使用Toolbar，无论我做什么，光标和下划线都不会出现

xml代码

<?xml version="1.0" encoding="utf-8"?>
<android.support.v7.widget.Toolbar
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/toolbar"
    app:collapseIcon="@drawable/ic_arrow_up_24dp"
    app:titleTextColor="@color/white"
    android:layout_alignParentTop="true"
    android:animateLayoutChanges="true"
    android:visibility="gone"
    android:alpha="0.0"
    android:layout_width="match_parent"
    android:layout_height="?attr/actionBarSize"
    android:background="@color/colorPrimary">

<LinearLayout
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="horizontal">


    <EditText
        android:id="@+id/edit_text"
        android:layout_width="match_parent"
        android:cursorVisible="true"
        android:focusable="true"
        android:focusableInTouchMode="true"
        android:layout_height="wrap_content"
        android:hint="Search..."
        android:textCursorDrawable="@color/white"
        android:textColor="@color/md_white_1000"
        android:layout_marginRight="120dp"
        />

</LinearLayout>
</android.support.v7.widget.Toolbar>

kotlin代码

        editText?.visibility = View.VISIBLE
        editText?.requestFocus()
        editText?.isCursorVisible = true
        editText.setRawInputType(InputType.TYPE_CLASS_TEXT);
        editText.setTextIsSelectable(true);

我哪里出错了，有人可以帮忙吗？

Answer 1

这是因为默认情况下，EditText的下划线和光标为colorAccent。所以，如果你想改变它们的颜色以假设白色，那么你应该在styles.xml中定义一个样式，如下所示：

<style name="editText" parent="AppTheme">
    <item name="colorAccent">@color/white</item>
</style>

然后将此样式作为主题应用于此类编辑文本：

 <EditText
    android:id="@+id/edit_text"
    android:layout_width="match_parent"
    android:cursorVisible="true"
    android:focusable="true"
    android:focusableInTouchMode="true"
    android:layout_height="wrap_content"
    android:hint="Search..."
    android:textCursorDrawable="@color/white"
    android:textColor="@color/md_white_1000"
    android:theme="@style/editText"
    android:layout_marginRight="120dp"
    />

Answer 2

定义4个XML文件：

edit_text_cursor.xml一个自定义的矩形形状drawable，用于更改EditText的光标。

<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
        android:shape="rectangle">
        <solid android:color="@color/white"/>
        <size android:width="2dp"/>
</shape>

edit_text_underline.xml下划线

<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
    <item
        android:bottom="0dp"
        android:left="-2dp"
        android:right="-2dp"
        android:top="-2dp">
        <shape>
            <solid android:color="@android:color/transparent" />
            <stroke
                android:width="2dp"
                android:color="@android:color/darker_gray" />
            <padding android:bottom="4dp" />
        </shape>
    </item>
</layer-list>

edit_text_underline_focused.xml下划线形状

<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
    <item
        android:bottom="0dp"
        android:left="-2dp"
        android:right="-2dp"
        android:top="-2dp">
        <shape>
            <solid android:color="@android:color/transparent" />
            <stroke
                android:width="2dp"
                android:color="@android:color/white" />
            <padding android:bottom="4dp" />
        </shape>
    </item>
</layer-list>

edit_text_underline_selector.xml根据EditText状态显示不同的可绘制形状（聚焦与否）。

<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
    <item android:drawable="@drawable/edit_text_underline_focused" android:state_focused="true"/>
    <item android:drawable="@drawable/edit_text_underline" android:state_focused="false"/>
</selector>

将EditText设置更改为blew：

xml代码

<android.support.v7.widget.Toolbar
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/toolbar"
    app:collapseIcon="@drawable/ic_arrow_up_24dp"
    app:titleTextColor="@color/white"
    android:layout_alignParentTop="true"
    android:animateLayoutChanges="true"
    android:visibility="gone"
    android:alpha="0.0"
    android:layout_width="match_parent"
    android:layout_height="?attr/actionBarSize"
    android:background="@color/colorPrimary">
    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:orientation="horizontal"
        android:gravity="center_vertical">
        <EditText
            android:id="@+id/edit_text"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:cursorVisible="true"
            android:focusable="true"
            android:focusableInTouchMode="true"
            android:hint="Search..."
            android:textColor="@color/white"
            android:background="@drawable/edit_text_underline_selector"
            android:textCursorDrawable="@drawable/edit_text_cursor"/>
    </LinearLayout>
</android.support.v7.widget.Toolbar>

EditText中缺少光标和下划线

2 个答案: