Changing Background Colour With Sharedpreference In Android

I want to change the background color of my app with a button. It should switch between two colors, for this I used SharedPreference, but >I don't know yet how to store the bool

Solution 1:

To save and get boolean from prefs you can use this :

publicclassSettings
{

privatestaticfinalStringPREFS_NAME="com.yourpackage.Settings";
privatestaticfinalStringMODUS="Settings.modus";

privatestaticfinalSharedPreferencesprefs= App.getContext().getSharedPreferences(PREFS_NAME, Context.MODE_PRIVATE);

privateSettings()
{

}

publicstaticvoidsetUseGreen(boolean useGreen)
{
    Editoredit= prefs.edit();

    edit.putBoolean(MODUS, useGreen);


    edit.commit();
}

publicstaticbooleanuseGreen()
{
    return prefs.getBoolean(MODUS, false);
}
}

And then in your Activity just use this :

@OverrideprotectedvoidonCreate(Bundle savedInstanceState)
{
    super.onCreate(savedInstanceState);
    this.setContentView(R.layout.your_layout);

    initModus();
}

publicvoidinitModus()
{
    CheckBoxmodus= (CheckBox)findViewById(R.id.yourChackBoxId);
    modus.setOnCheckedChangeListener(newCompoundButton.OnCheckedChangeListener() {
        @OverridepublicvoidonCheckedChanged(CompoundButton compoundButton, boolean checked)
        {
            Settings.setUseGreen(checked);
            changeColor(checked);
        }
    });

    booleanuseGreen= Settings.useGreen();
    modus.setChecked(useGreen);
}


privatevoidchangeColor(boolean checked)
{
    LinearLayoutlayout= (LinearLayout) findViewById(R.id.mylayout);

    if (useGreen) {
        intgreen= Color.GREEN;
        layout.setBackgroundColor(green);
    } else {
        intblue= Color.BLUE;
        layout.setBackgroundColor(blue);
    }
}