安卓应用不能在任何模拟器中运行

Question

我的应用程序无法运行。可能有一些我无法弄清楚的错误。

那么谁能告诉我为什么并帮助我解决代码？

这是我的代码：

package com.djrockerstudio.pc
import android.support.v7.app.AppCompatActivity
import android.os.Bundle
import kotlinx.android.synthetic.main.activity_main.*
class MainActivity : AppCompatActivity() {
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
setContentView(R.layout.activity_main)
btnCal.setOnClickListener {
val sum: Int = cal()
result.text = String.format("$%,.2f", sum)
}
}
private fun cal(): Int {
val pStandardIndex = 1000
val pIndex1 = 1500
val pIndex2 = 2000
val pIndexOver2 = 2500
val powerIndex: Int = inp.text.toString().toInt()
val standIndex: Int = inp2.text.toString().toInt()
val indexL1: Int = inp3.text.toString().toInt()
val indexL2: Int = inp4.text.toString().toInt()
var std = 0
var idx1 = 0
var idx2 = 0
var oIdx2 = 0
when (powerIndex) {
in 0..standIndex            -> std      = standIndex*pStandardIndex
in (standIndex+1)..indexL1  -> idx1     = (indexL1-standIndex)*pIndex1
in (indexL1+1)..indexL2     -> idx2     = (indexL2-indexL1)*pIndex2
else                        -> oIdx2    = (powerIndex-indexL2)*pIndexOver2
}
val sum = std+idx1+idx2+oIdx2
return sum
}
}

这是我的XML代码：

<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout 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="match_parent"
android:layout_height="match_parent"
tools:context="com.djrockerstudio.pc.MainActivity">
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toTopOf="parent"
android:orientation="vertical"
android:padding="10dp">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal">
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="vertical">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Power index (Kwh)"
android:textSize="14sp"
android:textColor="#000"
android:padding="5dp"
android:layout_margin="6dp"/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Standard index"
android:textSize="14sp"
android:textColor="#000"
android:padding="5dp"
android:layout_margin="6dp"/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Index level 1"
android:textSize="14sp"
android:textColor="#000"
android:padding="5dp"
android:layout_margin="6dp"/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Index level 2"
android:textSize="14sp"
android:textColor="#000"
android:padding="5dp"
android:layout_margin="6dp"/>
</LinearLayout>
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="vertical">
<EditText
android:id="@+id/inp"
android:background="@drawable/edit_text_style"
android:layout_width="200dp"
android:layout_height="30dp"
android:layout_margin="5dp"
android:inputType="numberDecimal"/>
<EditText
android:id="@+id/inp2"
android:background="@drawable/edit_text_style"
android:layout_width="200dp"
android:layout_height="30dp"
android:layout_margin="5dp"
android:inputType="numberDecimal"/>
<EditText
android:id="@+id/inp3"
android:background="@drawable/edit_text_style"
android:layout_width="200dp"
android:layout_height="30dp"
android:layout_margin="5dp"
android:inputType="numberDecimal"/>
<EditText
android:id="@+id/inp4"
android:background="@drawable/edit_text_style"
android:layout_width="200dp"
android:layout_height="30dp"
android:layout_margin="5dp"
android:inputType="numberDecimal"/>
</LinearLayout>
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:gravity="center"
android:padding="10dp">
<Button
android:id="@+id/btnCal"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Calculate"
android:background="@drawable/btn_style"
android:textColor="#FFF" />
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:padding="10dp">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Total amount:"
android:textSize="14sp"
android:textColor="#000"
android:padding="5dp"/>
<TextView
android:id="@+id/result"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textSize="14sp"
android:textColor="#00F"
android:padding="5dp"/>
</LinearLayout>
</LinearLayout>
</android.support.constraint.ConstraintLayout>

Answer 1

该应用程序无法解决的问题是因为 我使用了Bluestack，它只是不起作用。 我发现使上述代码工作的解决方案在这里：

private fun cal(): Double {
val pStandardIndex = 1000
val pIndex1 = 1500
val pIndex2 = 2000
val pIndexOver2 = 2500
val powerIndex = inp.text.toString().toInt()
val standIndex = inp2.text.toString().toInt()
val indexL1 = inp3.text.toString().toInt()
val indexL2 = inp4.text.toString().toInt()
val sum: Double
when (powerIndex) {
in 0 .. standIndex -> sum = standIndex*pStandardIndex.toDouble()
in (standIndex+1) .. indexL1 -> sum = (standIndex*pStandardIndex) + ((indexL1-standIndex)*pIndex1).toDouble()
in (indexL1+1) .. indexL2 -> sum = (standIndex*pStandardIndex) + ((indexL1-standIndex)*pIndex1) + ((indexL2-indexL1)*pIndex2).toDouble()
else -> sum = (standIndex*pStandardIndex) + ((indexL1-standIndex)*pIndex1) + ((indexL2-indexL1)*pIndex2) + ((powerIndex-indexL2)*pIndexOver2).toDouble()
}
return sum
}