如何使用arkts引入计算器弹窗
时间: 2024-10-20 10:18:56 浏览: 45
鸿蒙 arkts 计算器 我的资源
在Android应用中使用Arkts(Android Kotlin Standard Library)引入计算器弹窗,你可以通过自定义DialogFragment或者第三方库(如MaterialDialogs)来实现。以下是一个基本步骤的例子:
首先,确保已添加所需的库到你的build.gradle(Module级)文件中:
```gradle
dependencies {
implementation 'com.MaterialComponents:material-dialogs:1.5.0'
}
```
然后,创建一个CalculatorDialogFragment:
```kotlin
// CalculatorDialogFragment.kt
import android.content.DialogInterface
import android.os.Bundle
import androidx.annotation.NonNull
import androidx.appcompat.app.AlertDialog
import androidx.fragment.app.DialogFragment
import com.google.android.material.dialog.MaterialAlertDialogBuilder
import com.materialdialogs.MaterialDialog
import com.materialdialogs.interfaces.InputCallback
class CalculatorDialogFragment : DialogFragment() {
interface OnResultSelectedListener {
fun onResultSelected(result: String?)
}
private lateinit var listener: OnResultSelectedListener?
override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?): View? {
return inflater.inflate(R.layout.dialog_calculator, container, false)
}
override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
super.onViewCreated(view, savedInstanceState)
val inputView = view.findViewById<MaterialEditText>(R.id.input_field) as MaterialEditText
inputView.inputType = InputType.TYPE_CLASS_NUMBER
val addButton = view.findViewById<Button>(R.id.button_add)
addButton.setOnClickListener {
performMathOperation("add")
}
// 其他运算按钮类似,记得为每个按钮设置点击监听器并调用performMathOperation()
setOnDismissListener { dismissWithAnimation() }
dialog?.also { it.setTitle("计算器") }
}
private fun performMathOperation(operation: String) {
val currentInput = inputView.text.toString()
listener?.onResultSelected(currentInput + operation)
inputView.clearInput()
}
fun setOnResultSelectedListener(listener: OnResultSelectedListener) {
this.listener = listener
}
}
// 在需要的地方启动这个fragment
val dialogFragment = CalculatorDialogFragment()
dialogFragment.setOnResultSelectedListener { result ->
// 处理结果,例如更新UI或保存计算结果
}
dialogFragment.show(childFragmentManager, TAG)
```
在这个例子中,我们创建了一个简单的DialogFragment,用户可以输入数字,点击运算符按钮后会执行相应的数学操作。记得在`MainActivity`或`Fragment`中适当地实例化并配置这个`CalculatorDialogFragment`。
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