自定义属性 declare-styleable数据类型简介：
大家好，又见面了，我是你们的朋友全栈君。
一、reference：参考指定Theme中资源ID。
1.定义：
1 2 3 | <declare-styleable name=”My”> <attr name=”label” format=”reference” > </declare-styleable> |
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2.使用：
1 | <Buttonzkx:label=”@string/label” > |
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二、Color：颜色
1.定义：
1 2 3 | <declare-styleable name=”My”> <attr name=”textColor” format=”color” /> </declare-styleable> |
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2.使用：
1 | <Button zkx:textColor=”#ff0000″/> |
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三、boolean：布尔值
1.定义：
1 2 3 | <declare-styleable name=”My”> <attr name=”isVisible” format=”boolean” /> </declare-styleable> |
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2.使用：
1 | <Button zkx:isVisible=”false”/> |
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四、dimension：尺寸值
1.定义：
1 2 3 | <declare-styleable name=”My”> <attr name=”myWidth” format=”dimension” /> </declare-styleable> |
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2.使用：
1 | <Button zkx:myWidth=”100dip”/> |
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五、float：浮点型
1.定义：
1 2 3 | <declare-styleable name=”My”> <attr name=”fromAlpha” format=”float” /> </declare-styleable> |
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2.使用：
1 | <alpha zkx:fromAlpha=”0.3″/> |
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六、integer：整型
1.定义：
1 2 3 | <declare-styleable name=”My”> <attr name=”frameDuration” format=”integer” /> </declare-styleable> |
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2.使用：
1 | <animated-rotate zkx:framesCount=”22″/> |
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七、string：字符串
1.定义：
1 2 3 | <declare-styleable name=”My”> <attr name=”Name” format=”string” /> </declare-styleable> |
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2.使用：
1 | <rotate zkx:pivotX=”200%”/> |
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八、fraction：百分数
1.定义：
1 2 3 | <declare-styleable name=”My”> <attr name=”pivotX” format=”fraction” /> </declare-styleable> |
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2.使用：
1 | <rotate zkx:Name=”My name is zhang kun xiang”/> |
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九、enum：枚举
1.定义：
1 2 3 4 5 | <declare-styleable name=”My”> <attr name=”language”> <enum name=”English” value=”1″/> </attr> </declare-styleable> |
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2.使用：
1 | <Button zkx:language=”English”/> |
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十、flag：位或运算
1.定义：
1 2 3 4 5 6 | <declare-styleable name=”My”> <attr name=”windowSoftInputMode”> <flag name=”stateUnspecified” value=”1″ /> <flag name = “adjustNothing” value = “0x30” /> </attr> </declare-styleable> |
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2.使用：
1 | <activity android:windowSoftInputMode=”stateUnspecified | adjustNothing”> |
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属性定义时可以指定多种类型值：
1 2 3 | <declare-styleable name = “名称”> <attr name=”background” format=”reference|color” /> </declare-styleable> |
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使用：
1 | <ImageView android:background = “@drawable/图片ID|#00FF00″/> |
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例子和使用
class EasyHeadViewClick : LinearLayout {
private lateinit var mContentView: View
private lateinit var mllHeadBottomView: LinearLayout
private var headNum = 2
private var headOneName = ""
private var headTwoName = ""
private var headThreeName = ""
private var headFourName = ""
private var mCLickPosition = 0
private var listName = mutableListOf<String>()
//默认背景
private var mCLickBg = R.drawable.shape_stroke_orange_semicircle
private var mNoCLickBg = R.drawable.shape_stroke_grey_semicircle
constructor(context: Context?) : super(context) {
init(null)
}
constructor(context: Context?, attrs: AttributeSet?) : super(context, attrs) {
init(attrs)
}
constructor(context: Context?, attrs: AttributeSet?, defStyleAttr: Int) : super(context, attrs, defStyleAttr) {
init(attrs)
}
private fun init(attrs: AttributeSet?) {
mContentView = LayoutInflater.from(context).inflate(R.layout.head_bottom_view, this, false)
mllHeadBottomView = mContentView.findViewById(R.id.mllHeadBottomView)
if (attrs != null) {
val attributes = context?.obtainStyledAttributes(attrs, R.styleable.EasyHeadViewClick)
if (attributes != null) {
for (index in 0 until attributes.indexCount) {
when (attributes.getIndex(index)) {
R.styleable.EasyHeadViewClick_head_num -> {
headNum = attributes.getInt(R.styleable.EasyHeadViewClick_head_num, 2)
}
R.styleable.EasyHeadViewClick_head_one_name -> {
headOneName = attributes.getString(R.styleable.EasyHeadViewClick_head_one_name)
listName.add(0, headOneName)
}
R.styleable.EasyHeadViewClick_head_two_name -> {
headTwoName = attributes.getString(R.styleable.EasyHeadViewClick_head_two_name)
listName.add(1, headTwoName)
}
R.styleable.EasyHeadViewClick_head_three_name -> {
headThreeName = attributes.getString(R.styleable.EasyHeadViewClick_head_three_name)
listName.add(2, headThreeName)
}
R.styleable.EasyHeadViewClick_head_four_name -> {
headFourName = attributes.getString(R.styleable.EasyHeadViewClick_head_four_name)
listName.add(3, headFourName)
}
R.styleable.EasyHeadViewClick_head_click_bg -> {
mCLickBg = attributes.getResourceId(R.styleable.EasyHeadViewClick_head_click_bg, R.drawable.shape_stroke_orange_semicircle)
}
R.styleable.EasyHeadViewClick_head_no_click_bg -> {
mNoCLickBg = attributes.getResourceId(R.styleable.EasyHeadViewClick_head_no_click_bg, R.drawable.shape_stroke_grey_semicircle)
}
}
}
if (headNum > 0) {
for (i in 0 until headNum) {
var view = LayoutInflater.from(context).inflate(R.layout.layout_head_view_click_item, this, false)
var textView = view.findViewById<TextView>(R.id.tv_head_view_click_item)
var mLayoutParams = LayoutParams(0, LayoutParams.MATCH_PARENT, 1.0f) //动态设置权重分配
mLayoutParams.leftMargin = DensityUtil.px2dp(8).toInt()
textView.layoutParams = mLayoutParams
textView.text = listName[i]
if (i == 0) {
textView.setBackgroundResource(mCLickBg)
textView.setTextColor(resources.getColor(R.color.colorAccent))
} else {
textView.setBackgroundResource(mNoCLickBg)
textView.setTextColor(resources.getColor(R.color.black_353535))
}
mllHeadBottomView?.addView(view)
}
}
attributes.recycle()
}
}
initClick()
/**
* 执行才能展示
*/
addView(mContentView)
}
private fun initClick() {
for (i in 0 until headNum) {
mllHeadBottomView?.getChildAt(i)?.setOnClickListener { setPayType(i) }
}
}
private fun setPayType(payType: Int) {
for (i in 0 until headNum) {
(mllHeadBottomView?.getChildAt(i) as TextView)?.setBackgroundResource(R.drawable.shape_stroke_grey_semicircle)
(mllHeadBottomView?.getChildAt(i) as TextView)?.setTextColor(UIUtil.getColor(R.color.black_353535))
}
(mllHeadBottomView?.getChildAt(payType) as TextView)?.setBackgroundResource(R.drawable.shape_stroke_orange_semicircle)
(mllHeadBottomView?.getChildAt(payType) as TextView)?.setTextColor(UIUtil.getColor(R.color.colorAccent))
mCLickPosition = payType + 1//位置从零开始 要加1
mClickListener?.invoke(mCLickPosition.toString())
}
/**
* 通过接口获取点击位置
*/
private var mClickListener: ((mCLickPosition: String) -> Unit)? = null
fun setClickViewListener(mCLickPosition: ((mCLickPosition: String) -> Unit)) {
mClickListener = mCLickPosition
}
}发布者：全栈程序员栈长，转载请注明出处：https://javaforall.cn/159158.html原文链接：https://javaforall.cn