我想在 android 中计算仪表，但我创建的逻辑不起作用。有什么建议吗？

Question

代码如下，我正在尝试制作一个计量计算器，当用户在字段中输入时，计算应根据用户输入的数字执行，新变量应创建并执行一些计算，如下所述。

    package com.cyberthreats.activitylifetester.gueagecalculator;

import android.content.Intent;
import android.os.Build;
import android.support.annotation.RequiresApi;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.FrameLayout;
import android.widget.LinearLayout;
import android.widget.RelativeLayout;
import android.widget.ScrollView;
import android.widget.Switch;
import android.widget.TextView;
import android.widget.Toast;

import static com.cyberthreats.activitylifetester.gueagecalculator.R.id.activity_main;
import static com.cyberthreats.activitylifetester.gueagecalculator.R.id.add;
import static com.cyberthreats.activitylifetester.gueagecalculator.R.id.guage1;
import static com.cyberthreats.activitylifetester.gueagecalculator.R.id.weight;
import static com.cyberthreats.activitylifetester.gueagecalculator.R.id.wrap_content;

public class MainActivity extends AppCompatActivity {

    EditText guage1, guage2, weight;
    Button addmore, calculate;
    int value1, value2, totalSum;
    float calculated, calculated2;


    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        guage1 = (EditText) findViewById(R.id.guage1);
        guage2 = (EditText) findViewById(R.id.guage2);
        weight = (EditText) findViewById(R.id.weight);
        addmore = (Button) findViewById(R.id.add);
        calculate = (Button) findViewById(R.id.calculate);

        calculate.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                String num1 = guage1.getText().toString();
                String num2 = guage2.getText().toString();
                String wei = weight.getText().toString();
                int number1, number2, number3, weight;
                number1 = Integer.parseInt(num1); //int value in number1
                number2 = Integer.parseInt(num2); //int value in number2
                weight = Integer.parseInt(wei); //int value in weight

                //now calculations
                switch (number1) {
                    case 16:
                        value1 = 4096;
                        break;
                    case 17:
                        value1 = 3136;
                        break;
                    case 18:
                        value1 = 2304;
                        break;
                    case 19:
                        value1 = 1600;
                        break;
                    case 20:
                        value1 = 1296;
                        break;
                    case 21:
                        value1 = 1024;
                        break;
                    case 22:
                        value1 = 784;
                        break;
                    case 23:
                        value1 = 576;
                        break;
                    case 24:
                        value1 = 484;
                        break;
                    default:

                }

                switch (number2) {
                    case 16:
                        value2 = 4096;
                        break;
                    case 17:
                        value2 = 3136;
                        break;
                    case 18:
                        value2 = 2304;
                        break;
                    case 19:
                        value2 = 1600;
                        break;
                    case 20:
                        value2 = 1296;
                        break;
                    case 21:
                        value2 = 1024;
                        break;
                    case 22:
                        value2 = 784;
                        break;
                    case 23:
                        value2 = 576;
                        break;
                    case 24:
                        value2 = 484;
                        break;

                }
                //switch for number 2 ended

                totalSum = value1 + value2;
                calculated = value1 / totalSum * weight;
                calculated2 = value2 / totalSum * weight;
                Intent i = new Intent(MainActivity.this, Main2Activity.class);
                i.putExtra("calculated", calculated);
                i.putExtra("calculated2", calculated2);
                startActivity(i);
            }
        });

    }


}

第二个activity

package com.cyberthreats.activitylifetester.gueagecalculator;

import android.content.Intent;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.widget.TextView;

public class Main2Activity extends AppCompatActivity {
    float calculated, calculated2;
    int number3;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main2);

        TextView r = (TextView) findViewById(R.id.result);
        TextView r2 = (TextView) findViewById(R.id.result2);
        Intent intent = getIntent();

        float i = intent.getFloatExtra("calculated", calculated);
        float j = intent.getFloatExtra("calculated", calculated2);
        r.setText(String.valueOf(i));
        r2.setText(String.valueOf(j));

    }
}

Answer 1

以下是您需要更改的内容。

首先将 value1, value2, totalSum; 的类型更改为 float 即 float value1, value2, totalSum;

在 Main2Activity.java 中，编辑以匹配此行

float j = intent.getFloatExtra("calculated2", calculated2);

我想在 android 中计算仪表，但我创建的逻辑不起作用。有什么建议吗？

I want to calculate gauge in android but the logic I created is not working. Any suggestion?

android

calculator

gauge