package com.example.cal;
import android.R.integer;
import android.os.Bundle;
import android.app.Activity;
import android.view.Menu;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ImageButton;
public class MainActivity extends Activity {
private ImageButton one ,two, three ,four,five,six,seven,eight,nine,zero,add,
dividion,equal,minus,product;
EditText et;
String num,backnum,allnum;
int i,backi,alli;
int logo;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
et=(EditText) findViewById(R.id.et_num);
zero=(ImageButton) findViewById(R.id.ib_0);
one=(ImageButton) findViewById(R.id.ib_1);
two=(ImageButton) findViewById(R.id.ib_2);
three=(ImageButton) findViewById(R.id.ib_3);
four=(ImageButton) findViewById(R.id.ib_4);
five=(ImageButton) findViewById(R.id.ib_5);
six=(ImageButton) findViewById(R.id.ib_6);
seven=(ImageButton) findViewById(R.id.ib_7);
eight=(ImageButton) findViewById(R.id.ib_8);
nine=(ImageButton) findViewById(R.id.ib_9);
add=(ImageButton) findViewById(R.id.loga_add);
dividion=(ImageButton) findViewById(R.id.dividion);
minus=(ImageButton) findViewById(R.id.minus);
product=(ImageButton) findViewById(R.id.pro);
equal=(ImageButton) findViewById(R.id.equal);
}
// public void init(){
// et=(EditText) findViewById(R.id.et_num);
// zero=(Button) findViewById(R.id.ib_0);
// one=(Button) findViewById(R.id.ib_1);
// two=(Button) findViewById(R.id.ib_2);
// three=(Button) findViewById(R.id.ib_3);
// four=(Button) findViewById(R.id.ib_4);
// five=(Button) findViewById(R.id.ib_5);
// six=(Button) findViewById(R.id.ib_6);
// seven=(Button) findViewById(R.id.ib_7);
// eight=(Button) findViewById(R.id.ib_8);
// nine=(Button) findViewById(R.id.ib_9);
// add=(Button) findViewById(R.id.loga_add);
// dividion=(Button) findViewById(R.id.dividion);
// minus=(Button) findViewById(R.id.minus);
// product=(Button) findViewById(R.id.pro);
// equal=(Button) findViewById(R.id.equal);
// }
public void one(View v){
et.append("1");
}
public void two(View v){
et.append("2");
}
public void three(View v){
et.append("3");
}
public void four(View v){
et.append("4");
}
public void five(View v){
et.append("5");
}
public void six(View v){
et.append("6");
}
public void seven(View v){
et.append("7");
}
public void eight(View v){
et.append("8");
}
public void nine(View v){
et.append("9");
}
public void zero(View v){
et.append("0");
}
//当点击加号
public void add(View v){
num=et.getText().toString();
if(num.equals("")){
et.setText("");
}else{
i = Integer.parseInt(num);
logo=1;
et.setText("");}
}
//当点击减号
public void minus(View v){
num=et.getText().toString();
if(num.equals("")){
et.setText("");
}else{
i=Integer.parseInt(num);
logo=2;
et.setText("");}
}
//当点击乘号
public void product(View v){
num=et.getText().toString();
if(num.equals("")){
et.setText("");
}else{
i=Integer.parseInt(num);
logo=3;
et.setText("");}
}
//当点击除号
public void dividion(View v){
num=et.getText().toString();
if(num.equals("")){
et.setText("");
}else{
i=Integer.parseInt(num);
logo=4;
et.setText("");}
}
public void back(View v){
num=et.getText().toString();
if(num.equals("")){
et.setText("");
}else{
String mnum=num.substring(0, num.length()-1);
et.setText(mnum);}
}
//当点击等号
public void equal(View v){
backnum=et.getText().toString();
if(backnum.equals("")){
et.setText("");
}else{
backi=Integer.parseInt(backnum);
if(logo==1){
alli=i+backi;
backnum=Integer.toString(alli);
et.setText(backnum);
}else if(logo==2){
alli=i-backi;
backnum=Integer.toString(alli);
et.setText(backnum);
}else if(logo==3){
alli=i*backi;
backnum=Integer.toString(alli);
et.setText(backnum);
}else{
alli=i/backi;
backnum=Double.toString(alli);
et.setText(backnum);
}}
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
}
