Kotlin 自定义AlertDialog
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2022-07-02 19:26:37
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最近写的一个简易选择框
长这个样子:
有多种模式:
1.输入框模式,有一个标题一个输入框。见上图(构造方法中 isEdit 字段 true的时候是开启输入框)
2.还有一种提示模式,有一个标题一个内容。
扩展:更多模式 比如 一个标题一个内容一个输入框,等。。。
/**
* Created by Xinghai.Zhao on 2020/8/4.
* 自定义选择弹框
*/
class MyDialog(context: Context?) : AlertDialog(context), View.OnClickListener {
var call: clickCallBack? = null;
var TextView_title: TextView? = null;
var TextView_content: TextView? = null;
var editText: EditText? = null;
var yesButton: View? = null;
var noButton: View? = null;
constructor(context: Context?, title: String, content: String, yesCallBack: clickCallBack)
: this(context, title, content, yesCallBack, false) {
}
constructor(context: Context?, title: String, content: String, yesCallBack: clickCallBack, isEdit: Boolean) : this(context) {
call = yesCallBack
if (title != null) TextView_title?.setText(title);
if (content != null) TextView_content?.setText(title);
if (isEdit){
TextView_content?.visibility = View.GONE
editText?.visibility=View.VISIBLE
val filters = arrayOf<InputFilter>(InputFilter.LengthFilter(10)) // 最大输入长度
editText?.filters = filters
editText?.isFocusable = true
editText?.isFocusableInTouchMode = true
editText?.requestFocus()
editText?.keyListener = object : DigitsKeyListener() {
override fun getInputType(): Int {
return InputType.TYPE_TEXT_VARIATION_PASSWORD
}
override fun getAcceptedChars(): CharArray {
return context?.resources!!.getString(R.string.edit_input)?.toCharArray()
}
}
}
}
init {
val inflate = LayoutInflater.from(context).inflate(R.layout.dialog_my, null);
setView(inflate)
//设置点击别的区域不关闭页面
setCancelable(false)
TextView_title = inflate.findViewById<TextView>(R.id.dialog_my_title)
TextView_content = inflate.findViewById<TextView>(R.id.dialog_my_content)
editText = inflate.findViewById<EditText>(R.id.dialog_my_edit)
yesButton = inflate.findViewById<View>(R.id.dialog_my_yes)
noButton = inflate.findViewById<View>(R.id.dialog_my_no)
yesButton?.setOnClickListener(this)
noButton?.setOnClickListener{dismiss()}
}
override fun onClick(p0: View?) {
call?.yesClick(this);
}
interface clickCallBack {
fun yesClick(dialog:MyDialog)
}
}
外部调用代码
/*
*作者:赵星海
*时间:2020/6/17 11:07
*用途: 输入台牌号
*/
val myDialog =MyDialog(activity,"请输入台牌号","",object :MyDialog.clickCallBack{
override fun yesClick(dialog: MyDialog) {
val input:String =dialog.editText?.text.toString()
if (input==null||input .equals("")) {
Toast.makeText(activity, "台牌号不能为空!", Toast.LENGTH_LONG).show()
} else {
//此处写后续逻辑
dialog?.dismiss()
}
}
},true)
myDialog.setOnDismissListener {
//关闭监听逻辑
}
//显示的位置居中提高100dp-------------
val w = myDialog.window
val lp = w!!.attributes
lp.x = 0
lp.y = -100
//-----------------------------------
myDialog.show();
//显示的宽高根据屏幕半分比调整-----------------------------------
val m = activity!!.windowManager
val d = m.defaultDisplay //为获取屏幕宽、高
val p = myDialog.window!!.attributes //获取对话框当前的参数值
p.height = (d.height * 0.40).toInt() //高度设置为屏幕的0.3
p.width = (d.width * 0.45).toInt() //宽度设置为屏幕的0.5
myDialog.window!!.attributes = p
//--------------------------------------------------------------
下面加分割线的两段代码,其功能我已经写注释咯!