我有一个自定义 View ,其中包含三个控件(一个 ImageView
、一个 TextInputLayout
和一个 TextInputEditText
),我想委托(delegate)属性我的自定义 View 的 xml 标记到我的自定义 View 内的相应 View 。是否可以让我的自定义 View 接受 android:text = "Some string"xml 标记,然后让它在我的自定义 View 内相应的 TextInputEditText
中显示字符串?
我的自定义 View (InputView.kt):
class InputView(context: Context, attrs: AttributeSet?, @AttrRes defStyleAttr: Int) : ConstraintLayout(context, attrs, defStyleAttr) {
private lateinit var textInputLayout: TextInputLayout
private lateinit var textView: TextInputEditText
private lateinit var imageView: ImageView
// var drawableRes = imageView.drawable ?: 0
var text = textView.text
var hint = textInputLayout.hint
var error = textInputLayout.error
var helperText = textInputLayout.helperText
var ellipsize = textView.ellipsize ?: null
constructor(context: Context) : this(context, null)
constructor(context: Context, attrs: AttributeSet?) : this(context, attrs, 0)
init {
val view = LayoutInflater.from(context).inflate(R.layout.custom_inputview, this, true)
textInputLayout = view.custom_inputview_text_input_layout
textView = view.custom_inputview_text_input_edit_text
imageView = view.custom_inputview_image_view
attrs.let {
context.theme.obtainStyledAttributes(
attrs,
R.styleable.InputView,
0, 0).apply {
try {
// mShowText = getString(R.styleable.InputView_text)
} finally {
recycle()
}
}
}
}
}
View 的布局文件 (custom_inputview.xml):
<merge
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="0dp"
android:layout_height="wrap_content"
tools:parentTag="com.lucasurbas.masterdetail.ui.persondetails.InputView"
tools:ignore="ContentDescription">
<ImageView
android:id="@+id/custom_inputview_image_view"
android:layout_width="40dp"
android:layout_height="40dp"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
android:tint="@color/bg_action_mode"
tools:src="@drawable/ic_vd_hospital_24dp"/>
<com.google.android.material.textfield.TextInputLayout
android:id="@+id/custom_inputview_text_input_layout"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_marginStart="24dp"
android:layout_marginEnd="24dp"
app:layout_constraintBottom_toBottomOf="@+id/custom_inputview_image_view"
app:layout_constraintStart_toEndOf="@+id/custom_inputview_image_view"
app:layout_constraintTop_toTopOf="@+id/custom_inputview_image_view">
<com.google.android.material.textfield.TextInputEditText
android:id="@+id/custom_inputview_text_input_edit_text"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:hint="Department"/>
</com.google.android.material.textfield.TextInputLayout>
</merge>
最佳答案
如果您只想使用 android 样式属性,您可以执行以下操作。
在此示例中,如果您在创建 InputView 时在 xml 中定义了文本属性,则它应该获取文本属性。
init {
attrs?.let {
val typedArray = context.obtainStyledAttributes(attrs, STYLE_ATTRIBUTES)
val text = typedArray.getText(0)
typedArray.recycle()
}
}
companion object {
private val STYLE_ATTRIBUTES = intArrayOf(
android.R.attr.text
)
}
关于安卓自定义 View : Delegate attributes to controls inside of view,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/52148403/