如何将单选按钮状态保存到已保存/共享的首选项? [英] How to save radio button status to saved/shared preferences?

问题描述

我可以在保存的首选项中保存字符串，但是在保存单选按钮时遇到困难.

I am able to save Strings in my saved preferences but having difficulty saving radio buttons.

public class PersonalDetailsf extends Activity {

    private SharedPreferences sharedPreferences;  

    private RadioGroup radioGroup;
    private RadioButton radioSexButton;
    private RadioButton rdoMale;

这是我在创建上的内容:

Here is my on Create:

    sharedPreferences = PreferenceManager.getDefaultSharedPreferences(this);

    String strAge = Integer.toString(age);
    String strHeight = Integer.toString(height);
    String strWeight = Integer.toString(weight);

    name = loadSavedPreference("name");
    strAge = loadSavedPreference("strAge");
    strHeight = loadSavedPreference("strHeight");
    strWeight = loadSavedPreference("strWeight");

    etName.setText(name);
    etAge.setText(strAge);
    etHeight.setText(strHeight);
    etWeight.setText(strWeight);

这在按钮后面的onCLick中，我在其中使用单选按钮并保存字符串:

This is in my onCLick behind a button, where I'm using the radio button and saving the strings:

            Name = etName.getText().toString();
            age = (int) Double.parseDouble(etAge.getText().toString());
            height = (int) Double.parseDouble(etHeight.getText().toString());
            weight = (int) Double.parseDouble(etWeight.getText().toString());


            int selectedId = radioGroup.getCheckedRadioButtonId();

            radioSexButton = (RadioButton) findViewById(selectedId);
            rdoMale = (RadioButton) findViewById(R.id.rdoMale);

            if(rdoMale.isChecked())
            {
                BMR = 10 * weight + 6.25 * height - 5 * age + 5;

            }
                else
            {
                    BMR = 10 * weight + 6.25 * height - 5 * age -161;

            }


            //Save Preferences
            String strAge = Integer.toString(age);
            String strHeight = Integer.toString(height);
            String strWeight = Integer.toString(weight);

            name = etName.getText().toString();
            savePreference("name",name);

            strAge = etAge.getText().toString();
            savePreference("strAge",strAge);

            strHeight = etHeight.getText().toString();
            savePreference("strHeight",strHeight);

            strWeight = etWeight.getText().toString();
            savePreference("strWeight",strWeight);

推荐答案

在 onClick()内部执行

sharedPreferences.edit().putBoolean("bntChecked", rdoMale.isChecked()).apply();

"btnChecked" 将是您使用sharedPreferences获取单选按钮状态的键

And "btnChecked" will be the key that you will use to get the status of your radio button using sharedPreferences

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