共享首选项保存复选框操作

Question

I was able to store the value of checkbox using shared preference but I was not able to save the action its meant to do.The action what i need is when checkbox is checked a button should display,if checkbox is unchecked button should not display(hiding/showing button is done in different activity). So what I did was i passed the value isCheckedValue = isChecked; under if/else condition

    final CheckBox checkBox = (CheckBox) findViewById(R.id.add_fb);
    SharedPreferences preferences = PreferenceManager.getDefaultSharedPreferences(this);
    final SharedPreferences.Editor editor = preferences.edit();

    checkBox.setChecked(preferences.getBoolean("checked",false));

checkBox.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() { 
    @Override 
    public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
        isCheckedValue = isChecked;
        editor.putBoolean("checked", isChecked);
        editor.apply();

            if(checkBox.isChecked()) {
                isCheckedValue = isChecked;
                editor.putBoolean("checked", true);
                editor.apply();
            }else{
                editor.putBoolean("checked", false);
                editor.apply();
            }
        }
    });

if chkbox is checked the value will pass using intent in onBubbleClick using the boolean passing data in.putExtra("yourBoolName", isCheckedValue ); you could notice it in below bunch of code

    private void addNewBubble() {
        BubbleLayout bubbleView = (BubbleLayout)LayoutInflater.from(MainActivity.this).inflate(R.layout.bubble_layout, null);
        bubbleView.setOnBubbleRemoveListener(new BubbleLayout.OnBubbleRemoveListener() {
            @Override
            public void onBubbleRemoved(BubbleLayout bubble) {
                finish();
                System.exit(0);
            }
        });
        bubbleView.setOnBubbleClickListener(new BubbleLayout.OnBubbleClickListener() {

            @Override
            public void onBubbleClick(BubbleLayout bubble) {
                Intent in = new Intent(MainActivity.this, PopUpWindow.class);
                in.putExtra("yourBoolName", isCheckedValue );
                startActivity(in);

            }
        });
        bubbleView.setShouldStickToWall(true);
        bubblesManager.addBubble(bubbleView, 60, 20);
    }

How it works: At the very beginning the button is not displayed until the checkbox is clicked, the button gets displayed once the checkbox is checked and never gets hidden even after unchecked the checkbox.
How it's meant to work The button should display if the checkbox is checked and button should hide if the checkbox is unchecked.

Answer 1

In your if-else block, you aren't really updating the value of isCheckedValue in false condition. So, that needs to be fixed. I also refactored your code a bit. Try the following:

final CheckBox checkBox = (CheckBox) findViewById(R.id.add_fb);
SharedPreferences preferences = PreferenceManager.getDefaultSharedPreferences(this);
final SharedPreferences.Editor editor = preferences.edit();

checkBox.setChecked(preferences.getBoolean("checked",false));

checkBox.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() { 
    @Override 
    public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
        isCheckedValue = isChecked;
        editor.putBoolean("checked", isChecked);
        editor.apply();
    } 
});