Question

我想使用四个togglebuttons（最终是八个，十二个或十六个），并根据它切换到的位置为每个提供一个值。

因此toggle1将给出1或0的值，toggle2将给出2或0的值（tb4 4或0，tb8 8或0等）

然后我想将所有按钮的当前值添加到一起并显示在文本视图中。

我刚刚开始使用前2个，但我不确定如何将这些值添加到displayDecimalAnswer方法中。我显然遗漏了一些非常明显的东西，因为它听起来很简单。

帮助我Obi Wan Kenobis你是我唯一的希望。

package com.example.android.binary04;

import android.app.Activity;
import android.os.Bundle;
import android.widget.CompoundButton;
import android.widget.TextView;
import android.widget.ToggleButton;


import android.app.Activity;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.CompoundButton;
import android.widget.TextView;
import android.widget.ToggleButton;


public class MainActivity extends Activity implements CompoundButton.OnCheckedChangeListener {

ToggleButton toggle1;
ToggleButton toggle2;
ToggleButton toggle4;
ToggleButton toggle8;
TextView decimalAnswer;

int totalValues;
boolean toggle1Status;
boolean toggle2Status;
boolean toggle4Status;
boolean toggle8Status;

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


    toggle1 = (ToggleButton) findViewById(R.id.toggle1);
    toggle2 = (ToggleButton) findViewById(R.id.toggle2);
    toggle4 = (ToggleButton) findViewById(R.id.toggle4);
    toggle8 = (ToggleButton) findViewById(R.id.toggle8);
    toggle1.setOnCheckedChangeListener(this);
    toggle2.setOnCheckedChangeListener(this);
    toggle4.setOnCheckedChangeListener(this);
    toggle8.setOnCheckedChangeListener(this);
    decimalAnswer = (TextView) findViewById(R.id.decimal);
}


@Override
public void onCheckedChanged(CompoundButton compoundButton, boolean isChecked) {
    if (compoundButton == toggle1) {
        if (isChecked) {
            toggle1Status = true;
        } else {
            toggle1Status = false;
        }
    } else if (compoundButton == toggle2) {
        if (isChecked) {
            toggle2Status = true;
        } else {
            toggle2Status = false;
        }
    }

}
/**
* Here I wanted to give a int value to boolean whether each togglebutton
* is clicked or not. Then add the value of each button together
*/

int valueOfOnes = (toggle1Status) ? 1 : 0;
int valueOfTwos = (toggle2Status) ? 2 : 0;
int answer = valueOfOnes + valueOfTwos;



/**
 * Displays decimal answer.
 */
public void displayDecimalAnswer(int answer) {
    TextView decimalView = (TextView) findViewById(R.id.decimal);
    decimalView.setText(String.valueOf(answer));
}

}

Answer 1

     @Override 
public void onCheckedChanged(CompoundButton compoundButton, boolean isChecked) {
    if (compoundButton == toggle1) {
        if (isChecked) {
            toggle1Status = true;
        } else { 
            toggle1Status = false;
        } 
    } else if (compoundButton == toggle2) {
        if (isChecked) {
            toggle2Status = true;
        } else { 
            toggle2Status = false;
        } 
    } 
 displayDecimalAnswer();
} 

    /** 
     * Displays decimal answer. 
     */ 
    public void displayDecimalAnswer() {
       int valueOfOnes = (toggle1Status) ? 1 : 0;//Since toggle1Status is class level variable it will be accessibible
       int valueOfTwos = (toggle2Status) ? 2 : 0;
       int answer = valueOfOnes + valueOfTwos;

        TextView decimalView = (TextView) findViewById(R.id.decimal);
        decimalView.setText(""+answer);
    }

将togglebutton布尔值转换为整数值，然后在textview中一起添加

1 个答案: