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如何获得calcBtn来计算？现在，程序会自动计算，如果我点击单选按钮，重置按钮工作正常，但计算按钮不会做任何事情。计算myClickHandler函数不工作
的java文件
import java.text.DecimalFormat;
import android.os.Bundle;
import android.app.Activity;
import android.view.View;
import android.widget.*;
public class MainActivity extends Activity implements RadioGroup.OnCheckedChangeListener{
EditText et1;
EditText et2;
EditText et3;
RadioButton rb1;
RadioButton rb2;
RadioButton rb3;
RadioButton rb4;
RadioGroup rg1;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
et1=(EditText)findViewById(R.id.billText);
et2=(EditText)findViewById(R.id.tipText);
et3=(EditText)findViewById(R.id.totalText);
rb1=(RadioButton)findViewById(R.id.five);
rb2=(RadioButton)findViewById(R.id.ten);
rb3=(RadioButton)findViewById(R.id.fifteen);
rb4=(RadioButton)findViewById(R.id.twenty);
rg1=(RadioGroup)findViewById(R.id.radioGroup1);
rg1.setOnCheckedChangeListener(this);
}
public void onCheckedChanged(RadioGroup rg1, int i) {
// TODO Auto-generated method stub
if (i==rb1.getId()){
double Bill = Double.parseDouble(et1.getText().toString());
double Tip = Bill * .05;
double Total = Tip + Bill;
DecimalFormat df = new DecimalFormat("#.00");
et2.setText(df.format(Tip));
et3.setText(df.format(Total));
}
if (i==rb2.getId()){
double Bill = Double.parseDouble(et1.getText().toString());
double Tip = Bill * .1;
double Total = Tip + Bill;
DecimalFormat df = new DecimalFormat("#.00");
et2.setText(df.format(Tip));
et3.setText(df.format(Total));
}
if (i==rb3.getId()){
double Bill = Double.parseDouble(et1.getText().toString());
double Tip = Bill * .15;
double Total = Tip + Bill;
DecimalFormat df = new DecimalFormat("#.00");
et2.setText(df.format(Tip));
et3.setText(df.format(Total));
}
if (i==rb4.getId()){
double Bill = Double.parseDouble(et1.getText().toString());
double Tip = Bill * .2;
double Total = Tip + Bill;
DecimalFormat df = new DecimalFormat("#.00");
et2.setText(df.format(Tip));
et3.setText(df.format(Total));
}
}
public void myClickHandler(View view)
{
switch (view.getId())
{
case R.id.calcBtn:
break;
case R.id.resetBtn:
et1.setText("");
et2.setText("");
et3.setText("");
break;
}
}
}
xml文件
<TextView
android:id="@+id/textView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/totalBill" />
<EditText
android:id="@+id/billText"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:ems="10"
android:inputType="numberDecimal" >
</EditText>
<TextView
android:id="@+id/textView2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="22dp"
android:text="@string/tip" />
<RadioGroup
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:layout_gravity="center"
android:id="@+id/radioGroup1"
>
<RadioButton
android:id="@+id/five"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:checked="false"
android:text="@string/perefive" />
<RadioButton
android:id="@+id/ten"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:checked="false"
android:text="@string/pereten" />
<RadioButton
android:id="@+id/fifteen"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:checked="false"
android:text="@string/perefifteen" />
<RadioButton
android:id="@+id/twenty"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:checked="true"
android:text="@string/peretwenty" />
</RadioGroup>
<TextView
android:id="@+id/textView3"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="17dp"
android:text="@string/tiptotal" />
<EditText
android:id="@+id/tipText"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:ems="10"
android:inputType="numberDecimal" />
<TextView
android:id="@+id/textView4"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="16dp"
android:text="@string/overalltotal" />
<EditText
android:id="@+id/totalText"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:ems="10"
android:inputType="numberDecimal" />
<Button
android:id="@+id/calcBtn"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:onClick="myClickHandler"
android:text="@string/calc" />
<Button
android:id="@+id/resetBtn"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:onClick="myClickHandler"
android:text="@string/reset" />
</LinearLayout>
你没有做任何事情只是在计算按钮的onclick中使用break。你想在计算按钮的onclick中计算什么？ –
我想选择一个单选按钮，然后点击计算来计算提示和总数。现在它会自动计算提示和总数，如果你只是选择一个单选按钮。 – angelicdemon