使用Kotlin进行Android开发,其中一个layout文件如下:
<?xml version="1.0" encoding="utf-8"?><androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent" android:id="@+id/loginLayout" xmlns:app="http://schemas.android.com/apk/res-auto">
<TextView
android:id="@+id/accountLabel"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:textSize="18sp"
android:text="Account:"
app:layout_constraintEnd_toStartOf="@+id/accountEdit"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintVertical_bias="0.1"
android:layout_marginEnd="8dp"
android:layout_marginTop="16dp"/>
<EditText
android:id="@+id/accountEdit"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_marginTop="16dp"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toEndOf="@+id/accountLabel"
app:layout_constraintTop_toTopOf="@+id/accountLabel"
app:layout_constraintHorizontal_bias="0"
android:layout_marginStart="8dp"/>
<TextView
android:id="@+id/passwordLabel"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:textSize="18sp"
android:text="Password:"
app:layout_constraintEnd_toStartOf="@+id/passwordEdit"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@+id/accountEdit"
app:layout_constraintVertical_bias="0.1"
android:layout_marginEnd="8dp"
android:layout_marginTop="16dp"/>
<EditText
android:id="@+id/passwordEdit"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_marginTop="16dp"
android:inputType="textPassword"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toEndOf="@+id/passwordLabel"
app:layout_constraintTop_toTopOf="@+id/passwordLabel"
app:layout_constraintHorizontal_bias="0"
android:layout_marginStart="8dp"/>
<Button
android:id="@+id/login"
android:layout_width="200dp"
android:layout_height="60dp"
android:text="Login"
app:layout_constraintTop_toBottomOf="@+id/passwordEdit"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintVertical_bias="0.1"
android:layout_marginTop="24dp"/>
</androidx.constraintlayout.widget.ConstraintLayout>
报错如下: accountEdit <EditText>: No speakable text present accountEdit <EditText>: Touch target size too small passwordEdit <EditText>: No speakable text present passwordEdit <EditText>: Touch target size too small 请修复,确保不要再有错误。
根据报错信息,主要有两个问题需要解决:
EditText
没有设置 hint
属性,导致无障碍功能无法读取提示信息。EditText
的触摸目标区域太小,通常需要确保触摸目标区域至少为 48dp x 48dp。我们可以通过以下方式修复这些问题:
EditText
添加 hint
属性。EditText
的高度至少为 48dp。以下是修复后的代码:
<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="@+id/loginLayout"
xmlns:app="http://schemas.android.com/apk/res-auto">
<TextView
android:id="@+id/accountLabel"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:textSize="18sp"
android:text="Account:"
app:layout_constraintEnd_toStartOf="@+id/accountEdit"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintVertical_bias="0.1"
android:layout_marginEnd="8dp"
android:layout_marginTop="16dp"/>
<EditText
android:id="@+id/accountEdit"
android:layout_width="0dp"
android:layout_height="48dp"
android:layout_marginTop="16dp"
android:hint="Enter your account"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toEndOf="@+id/accountLabel"
app:layout_constraintTop_toTopOf="@+id/accountLabel"
app:layout_constraintHorizontal_bias="0"
android:layout_marginStart="8dp"/>
<TextView
android:id="@+id/passwordLabel"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:textSize="18sp"
android:text="Password:"
app:layout_constraintEnd_toStartOf="@+id/passwordEdit"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@+id/accountEdit"
app:layout_constraintVertical_bias="0.1"
android:layout_marginEnd="8dp"
android:layout_marginTop="16dp"/>
<EditText
android:id="@+id/passwordEdit"
android:layout_width="0dp"
android:layout_height="48dp"
android:layout_marginTop="16dp"
android:inputType="textPassword"
android:hint="Enter your password"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toEndOf="@+id/passwordLabel"
app:layout_constraintTop_toTopOf="@+id/passwordLabel"
app:layout_constraintHorizontal_bias="0"
android:layout_marginStart="8dp"/>
<Button
android:id="@+id/login"
android:layout_width="200dp"
android:layout_height="60dp"
android:text="Login"
app:layout_constraintTop_toBottomOf="@+id/passwordEdit"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintVertical_bias="0.1"
android:layout_marginTop="24dp"/>
</androidx.constraintlayout.widget.ConstraintLayout>
通过以上修改,EditText
组件的 hint
属性已经添加,并且高度设置为至少 48dp,确保触摸目标区域足够大。这样可以解决无障碍功能和触摸目标区域过小的问题。