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- <?xml version="1.0" encoding="utf-8"?>
- <LinearLayout 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"
- android:layout_marginLeft="30dp"
- android:layout_marginTop="16dp"
- android:layout_marginRight="30dp"
- android:layout_marginBottom="20dp"
- android:orientation="vertical"
- tools:context=".MainActivity">
-
- <TextView
- android:id="@+id/Answer"
- android:layout_width="match_parent"
- android:layout_height="189dp"
- android:layout_weight="0.33"
- android:hint="Result"
- android:textSize="34sp" />
-
- <LinearLayout
- android:layout_width="wrap_content"
- android:layout_height="wrap_content">
-
- <Button
- android:id="@+id/btn10"
- android:layout_width="wrap_content"
- android:layout_height="76dp"
- android:background="@color/purple_200"
- android:text="C"
- android:textColor="#F30C4D"
- android:textSize="20sp" />
-
- <Button
- android:id="@+id/btn11"
- android:layout_width="wrap_content"
- android:layout_height="76dp"
- android:background="@color/purple_200"
- android:text="%"
- android:textColor="#FF5722"
- android:textSize="20sp" />
-
- <Button
- android:id="@+id/btn12"
- android:layout_width="175dp"
- android:layout_height="76dp"
- android:background="@color/purple_200"
- android:text="Del"
- android:textColor="#F30C4D"
- android:textSize="20sp" />
-
- </LinearLayout>
-
- <LinearLayout
- android:layout_width="wrap_content"
- android:layout_height="wrap_content">
- <Button
- android:id="@+id/btn1"
- android:layout_width="wrap_content"
- android:layout_height="76dp"
- android:background="@color/purple_200"
- android:text="1"
- android:textSize="26dp" />
-
- <Button
- android:id="@+id/btn2"
- android:layout_width="wrap_content"
- android:layout_height="76dp"
- android:background="@color/teal_200"
- android:text="2"
- android:textSize="26dp" />
-
- <Button
- android:id="@+id/btn3"
- android:layout_width="wrap_content"
- android:layout_height="76dp"
- android:background="@color/purple_200"
- android:text="3"
- android:textSize="26dp" />
-
- <Button
- android:id="@+id/btnadd"
- android:layout_width="wrap_content"
- android:layout_height="77dp"
- android:background="#00BCD4"
- android:text="+"
- android:textColor="#FFEB3B"
- android:textSize="26dp" />
- </LinearLayout>
-
- <LinearLayout
- android:layout_width="wrap_content"
- android:layout_height="wrap_content">
-
- <Button
- android:id="@+id/btn4"
- android:layout_width="wrap_content"
- android:layout_height="76dp"
- android:background="@color/purple_200"
- android:text="4"
- android:textSize="26dp" />
-
- <Button
- android:id="@+id/btn5"
- android:layout_width="wrap_content"
- android:layout_height="76dp"
- android:background="@color/purple_200"
- android:text="5"
- android:textSize="26dp" />
-
- <Button
- android:id="@+id/btn6"
- android:layout_width="wrap_content"
- android:layout_height="76dp"
- android:background="@color/purple_200"
- android:text="6"
- android:textSize="26dp" />
-
- <Button
- android:id="@+id/btnsub"
- android:layout_width="wrap_content"
- android:layout_height="76dp"
- android:background="@color/purple_200"
- android:text="-"
- android:textColor="#FFEB3B"
- android:textSize="26dp" />
- </LinearLayout>
-
- <LinearLayout
- android:layout_width="wrap_content"
- android:layout_height="wrap_content">
-
- <Button
- android:id="@+id/btn7"
- android:layout_width="wrap_content"
- android:layout_height="76dp"
- android:background="@color/purple_200"
- android:text="7"
- android:textSize="26dp" />
-
- <Button
- android:id="@+id/btn8"
- android:layout_width="wrap_content"
- android:layout_height="76dp"
- android:background="@color/purple_200"
- android:text="8"
- android:textSize="26dp" />
-
- <Button
- android:id="@+id/btn9"
- android:layout_width="wrap_content"
- android:layout_height="76dp"
- android:background="@color/purple_200"
- android:text="9"
- android:textSize="26dp" />
-
- <Button
- android:id="@+id/btnmul"
- android:layout_width="wrap_content"
- android:layout_height="match_parent"
- android:background="@color/purple_200"
- android:text="×"
- android:textColor="#FFEB3B"
- android:textSize="26dp" />
- </LinearLayout>
-
- <LinearLayout
- android:layout_width="wrap_content"
- android:layout_height="wrap_content">
-
- <Button
- android:id="@+id/btn0"
- android:layout_width="wrap_content"
- android:layout_height="76dp"
- android:background="@color/purple_200"
- android:text="0"
- android:textColor="#E91E63"
- android:textSize="26dp" />
-
- <Button
- android:id="@+id/btndot"
- android:layout_width="wrap_content"
- android:layout_height="76dp"
- android:background="@color/purple_200"
- android:text="."
- android:textSize="26dp" />
-
- <Button
- android:id="@+id/btnequel"
- android:layout_width="wrap_content"
- android:layout_height="76dp"
- android:background="@color/purple_200"
- android:text="="
- android:textColor="#FF5722"
- android:textSize="26dp" />
-
- <Button
- android:id="@+id/btndiv"
- android:layout_width="wrap_content"
- android:layout_height="76dp"
- android:background="@color/purple_200"
- android:text="÷"
- android:textColor="#FFEB3B"
- android:textSize="26dp" />
- </LinearLayout>
-
-
- </LinearLayout>
-
- package com.example.mycalculater;
-
- import androidx.appcompat.app.AppCompatActivity;
- import android.os.Bundle;
- import android.view.View;
- import android.widget.Button;
- import android.widget.TextView;
-
-
- public class MainActivity extends AppCompatActivity {
- Button b1,b2,b3,b4,b5,b6,b7,b8,b9,b0,badd,bsub,bmul,bdiv,bdot,bequal,b10,b12;
- TextView ans;
- double var1,var2;
- boolean add,sub,mul,div,n10;
- boolean sq = false;
-
-
- @Override
- protected void onCreate(Bundle savedInstanceState) {
- super.onCreate(savedInstanceState);
- setContentView(R.layout.activity_main);
-
- b1= (Button) findViewById(R.id.btn1);
- b2= (Button) findViewById(R.id.btn2);
- b3= (Button) findViewById(R.id.btn3);
- b4= (Button) findViewById(R.id.btn4);
- b5= (Button) findViewById(R.id.btn5);
- b6= (Button) findViewById(R.id.btn6);
- b7= (Button) findViewById(R.id.btn7);
- b8= (Button) findViewById(R.id.btn8);
- b9= (Button) findViewById(R.id.btn9);
- b0= (Button) findViewById(R.id.btn0);
- badd= (Button) findViewById(R.id.btnadd);
- bsub= (Button) findViewById(R.id.btnsub);
- bmul= (Button) findViewById(R.id.btnmul);
- bdiv= (Button) findViewById(R.id.btndiv);
- bdot= (Button) findViewById(R.id.btndot);
- bequal= (Button) findViewById(R.id.btnequel);
- b10= (Button) findViewById(R.id.btn10);
- b12= (Button) findViewById(R.id.btn12);
- ans = (TextView) findViewById(R.id.Answer);
-
-
- b1.setOnClickListener(new View.OnClickListener() {
- @Override
- public void onClick(View view) {
- if(sq==true){
- ans.setText(null);
- ans.setText(ans.getText()+"1");
- sq=false;
- }else
- ans.setText(ans.getText()+"1");
-
- }
- });
- b2.setOnClickListener(new View.OnClickListener() {
- @Override
- public void onClick(View view) {
- if(sq==true){
- ans.setText(null);
- ans.setText(ans.getText()+"2");
- sq=false;
- }else
- ans.setText(ans.getText()+"2");
- }
- });
- b3.setOnClickListener(new View.OnClickListener() {
- @Override
- public void onClick(View view) {
- if(sq==true){
- ans.setText(null);
- ans.setText(ans.getText()+"3");
- sq=false;
- }else
- ans.setText(ans.getText()+"3");
- }
- });
- b4.setOnClickListener(new View.OnClickListener() {
- @Override
- public void onClick(View view) {
- if(sq==true){
- ans.setText(null);
- ans.setText(ans.getText()+"4");
- sq=false;
- }else
- ans.setText(ans.getText()+"4");
- }
- });
- b5.setOnClickListener(new View.OnClickListener() {
- @Override
- public void onClick(View view) {
- if(sq==true){
- ans.setText(null);
- ans.setText(ans.getText()+"5");
- sq=false;
- }else
- ans.setText(ans.getText()+"5");
- }
- });
- b6.setOnClickListener(new View.OnClickListener() {
- @Override
- public void onClick(View view) {
- if(sq==true){
- ans.setText(null);
- ans.setText(ans.getText()+"6");
- sq=false;
- }else
- ans.setText(ans.getText()+"6");
- }
- });
- b7.setOnClickListener(new View.OnClickListener() {
- @Override
- public void onClick(View view) {
- if(sq==true){
- ans.setText(null);
- ans.setText(ans.getText()+"7");
- sq=false;
- }else
- ans.setText(ans.getText()+"7");
- }
- });
- b8.setOnClickListener(new View.OnClickListener() {
- @Override
- public void onClick(View view) {
- if(sq==true){
- ans.setText(null);
- ans.setText(ans.getText()+"8");
- sq=false;
- }else
- ans.setText(ans.getText()+"8");
- }
- });
- b9.setOnClickListener(new View.OnClickListener() {
- @Override
- public void onClick(View view) {
- if(sq==true) {
- ans.setText(null);
- ans.setText(ans.getText()+"9");
- sq=false;
- }else
- ans.setText(ans.getText()+"9");
- }
- });
- b0.setOnClickListener(new View.OnClickListener() {
- @Override
- public void onClick(View view) {
- if(sq==true){
- ans.setText(null);
- ans.setText(ans.getText()+"0");
- sq=false;
- }else
- ans.setText(ans.getText()+"0");
- }
- });
- bdot.setOnClickListener(new View.OnClickListener() {
- @Override
- public void onClick(View view) {
- try {
- if(ans.getText().toString().contains("."))
- ans.setText(ans.getText()+"");
- else
- ans.setText(ans.getText()+".");
- } catch (Exception e) {
- ans.setText("出错");
- }
- }
- });
- badd.setOnClickListener(new View.OnClickListener() {
- @Override
- public void onClick(View view) {
- try {
- var1 = Double.parseDouble(ans.getText()+"");
- add=true;
- ans.setText(null);
- }catch (RuntimeException a){
- ans.setText("错误");
- sq=true;
-
- }
- }
- });
- bsub.setOnClickListener(new View.OnClickListener() {
- @Override
- public void onClick(View view) {
- try {
- var1 = Double.parseDouble(ans.getText()+"");
- sub=true;
- ans.setText(null);
- }catch(RuntimeException a){
- ans.setText("错误");
- sq=true;
- }
- }
- });
- bmul.setOnClickListener(new View.OnClickListener() {
- @Override
- public void onClick(View view) {
- try {
- var1 = Double.parseDouble(ans.getText()+"");
- mul=true;
- ans.setText(null);
- }catch(RuntimeException a){
- ans.setText("错误");
- sq=true;
- }
- }
- });
- bdiv.setOnClickListener(new View.OnClickListener() {
- @Override
- public void onClick(View view) {
- /*var1 = Double.parseDouble(ans.getText()+"");
- div=true;
- ans.setText(null);*/
- try {
- var1 = Double.parseDouble(ans.getText()+"");
- div=true;
- ans.setText(null);
- }catch(RuntimeException a){
- ans.setText("错误");
- sq=true;
- }
- }
- });
- b10.setOnClickListener(new View.OnClickListener() {
- @Override
- public void onClick(View view) {
- ans.setText(null);
- add=false;sub=false;mul=false;div=false;
- }
- });
- b12.setOnClickListener(new View.OnClickListener() {
- @Override
- public void onClick(View view) {
- try {
- String temp = "";
- temp = ans.getText().toString().substring(0, ans.length() - 1);
- ans.setText(temp + "");
- }catch(RuntimeException a){
- ans.setText("错误");
- }
- }
- });
- bequal.setOnClickListener(new View.OnClickListener() {
- @Override
- public void onClick(View view) {
- try {
- var2 = Double.parseDouble(ans.getText() + "");
- if (add == true) {
- ans.setText(var1 + var2 + "");
- add = false;
- sq = true;
- }
- if (sub == true) {
- ans.setText(var1 - var2 + "");
- sub = false;
- sq = true;
- }
- if (mul == true) {
- ans.setText(var1 * var2 + "");
- mul = false;
- sq = true;
- }
- if (div == true) {
- ans.setText(var1 / var2 + "");
- div = false;
- sq = true;
- }
- if (n10 == true) {
- ans.setText(0 + "");
- n10 = false;
- sq = true;
- }
- }catch(RuntimeException a){
- }
- /*String temp="";
- temp=ans.getText().toString().substring(0,ans.length()-1);
- ans.setText(temp+"");*/
- }
- });
-
- // public void opratorCalc(String operatorNumber,String currentOprator)
- // {
- // if(TextUtils.isEmpty(lastOperators))
- // {
- // firstNumber = Double.parseDouble(operatorNumber);
- // return;
- // }
-
-
-
-
-
-
- }
- }
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