团队成员：陈淑筠、杨家安、陈曦
团队选题：小学四则运算APP
第一次冲刺阶段时间：11.17~11.27
本次发布已经解决上次问题，问题是写程序逻辑错误，问题已经修改！我们还增加两个模块的面板设置，如下是程序结果：
import java.util.Random; import android.os.Bundle;
import android.app.Activity;
import android.view.Menu;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;
import android.widget.Toast; public class CalculatorActivity extends Activity {
private final Random num1=new Random();
private final Random num2=new Random();
private final Random r = new Random();
private char[] ch = {'+','-','*','/'}; //字符数组
private int index = r.nextInt(ch.length); //随机数，小于数组的长度数, 0~3
private char a=ch[index];
private TextView text1,text2,text3;
private EditText answer;
private Button surebutton;//确定按钮
//private String c;
//private String e;
//private String b;
private int i1,i2,i3;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_calculator);
text1=(TextView)findViewById(R.id.textView1);//随机数字
text2=(TextView)findViewById(R.id.textView2);//运算符号
text3=(TextView)findViewById(R.id.textView3);//随机数字
answer=(EditText)findViewById(R.id.editText1);//运算结果
final String c=String.valueOf(num1.nextInt(100));
i2=Integer.valueOf(c);
final String d=String.valueOf(a);
final String e=String.valueOf(num2.nextInt(100));
i3=Integer.valueOf(e);
text1.setText(c);//随机数1-100
text2.setText(d);//随机运算符+,-,*,/
text3.setText(e);//随机数1-100
surebutton=(Button)findViewById(R.id.surebutton);//确定按钮
surebutton.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View arg0) {
// TODO Auto-generated method stub
final String b=answer.getText().toString();//获取输入的数值
i1=Integer.valueOf(b);
switch(index){
case 0:
{
if(i1==(i2+i3))
Toast.makeText(CalculatorActivity.this, "正确"+b, Toast.LENGTH_SHORT).show();
else
Toast.makeText(CalculatorActivity.this, "错误"+b, Toast.LENGTH_SHORT).show();
break;
}
case 1:
{
if(i1==(i2-i3))
Toast.makeText(CalculatorActivity.this, "正确"+b, Toast.LENGTH_SHORT).show();
else
Toast.makeText(CalculatorActivity.this, "错误"+b, Toast.LENGTH_SHORT).show();
break;
}
case 2:{
if(i1==(i2*i3))
Toast.makeText(CalculatorActivity.this, "正确"+b, Toast.LENGTH_SHORT).show();
else
Toast.makeText(CalculatorActivity.this, "错误"+b, Toast.LENGTH_SHORT).show();
break;
}
case 3:
{
if(i3!=0){
if(i1==(i2/i3))
Toast.makeText(CalculatorActivity.this, "正确"+b, Toast.LENGTH_SHORT).show();
else
Toast.makeText(CalculatorActivity.this, "错误"+b, Toast.LENGTH_SHORT).show();
}
break;
}
}
}
}); } @Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.calculator, menu);
return true;
} }
新功能选择页面代码：
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/RelativeLayout1"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" > <TextView
android:id="@+id/textView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:layout_centerHorizontal="true"
android:layout_marginTop="23dp"
android:text="@string/title_activity_choice"
android:textSize="20sp" /> <TextView
android:id="@+id/title"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@+id/textView1"
android:layout_centerHorizontal="true"
android:layout_marginTop="33dp"
android:text="TextView"
android:textSize="20sp" /> <RadioGroup
android:id="@+id/radioGroup1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@+id/title"
android:layout_centerHorizontal="true"
android:layout_marginTop="44dp" > <RadioButton
android:id="@+id/R1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="TextView"
android:textSize="20sp" /> <RadioButton
android:id="@+id/R2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="TextView"
android:textSize="20sp" /> <RadioButton
android:id="@+id/R3"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="TextView"
android:textSize="20sp" /> <RadioButton
android:id="@+id/R4"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="TextView"
android:textSize="20sp" />
</RadioGroup> <Button
android:id="@+id/button1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignParentRight="true"
android:layout_below="@+id/radioGroup1"
android:layout_marginTop="34dp"
android:text="下一题" /> </RelativeLayout>
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/RelativeLayout1"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" > <TextView
android:id="@+id/textView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:layout_centerHorizontal="true"
android:layout_marginTop="35dp"
android:text="@string/title_activity_set"
android:textSize="30sp" /> <EditText
android:id="@+id/editText1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignBottom="@+id/textView2"
android:layout_alignLeft="@+id/textView1"
android:ems="10"
android:inputType="number" /> <TextView
android:id="@+id/textView2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@+id/textView1"
android:layout_marginTop="41dp"
android:layout_toLeftOf="@+id/editText1"
android:text="@string/the_number_of_calculator"
android:textSize="20sp" /> <RadioButton
android:id="@+id/radioButton4"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignBaseline="@+id/radioButton3"
android:layout_alignBottom="@+id/radioButton3"
android:layout_marginLeft="25dp"
android:layout_toRightOf="@+id/textView1"
android:text="/" /> <RadioButton
android:id="@+id/radioButton3"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignBaseline="@+id/radioButton2"
android:layout_alignBottom="@+id/radioButton2"
android:layout_alignRight="@+id/textView1"
android:layout_marginRight="18dp"
android:text="*" /> <RadioButton
android:id="@+id/radioButton2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignBaseline="@+id/radioButton1"
android:layout_alignBottom="@+id/radioButton1"
android:layout_toRightOf="@+id/textView2"
android:text="-" /> <RadioButton
android:id="@+id/radioButton1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignLeft="@+id/textView2"
android:layout_below="@+id/textView2"
android:layout_marginTop="16dp"
android:text="+" /> <EditText
android:id="@+id/editText2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignBottom="@+id/textView3"
android:layout_toLeftOf="@+id/radioButton3"
android:layout_toRightOf="@+id/textView3"
android:ems="10"
android:inputType="number" /> <TextView
android:id="@+id/textView4"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignBaseline="@+id/textView3"
android:layout_alignBottom="@+id/textView3"
android:layout_alignLeft="@+id/radioButton3"
android:text="分"
android:textSize="20sp" /> <TextView
android:id="@+id/textView3"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignLeft="@+id/radioButton1"
android:layout_below="@+id/radioButton1"
android:layout_marginTop="58dp"
android:text="时间设置:"
android:textSize="20sp" /> <EditText
android:id="@+id/editText3"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignBottom="@+id/textView4"
android:layout_alignRight="@+id/radioButton4"
android:layout_marginLeft="16dp"
android:layout_toRightOf="@+id/textView4"
android:ems="10"
android:inputType="number" > <requestFocus />
</EditText> <TextView
android:id="@+id/textView5"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignBaseline="@+id/textView4"
android:layout_alignBottom="@+id/textView4"
android:layout_alignParentRight="true"
android:text="秒"
android:textSize="20sp"/> <Button
android:id="@+id/button1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignParentRight="true"
android:layout_below="@+id/editText2"
android:layout_marginTop="43dp"
android:text="确定" /> </RelativeLayout>