CODEWITHSUNDEEP
android
BasILyoS
BasILyoS

Reputation: 1005

pick a color from the holocolorpicker then saved using shared preferences

am trying to save he color picked from the holocolorpicker and use it in another activity

before the onCreate method in the settings activity i put this lines

private String SettingsTAG0 = "backcolorValue";
private SharedPreferences backcolorprefs;
private static int backcolorValue = 0;

after the onCreate method in the settings activity i put this lines

public void onColorChanged(int color) {
    ColorPicker picker0 = (ColorPicker) findViewById(R.id.backpicker);
    backcolorValue = picker0.getColor();
    Editor editor0 = backcolorprefs.edit();
    editor0.clear();
    editor0.putInt("back_colorcode", backcolorValue);
    editor0.commit();
}

before the onCreate method of the other activity i put this lines

private String SettingsTAG0 = "backcolorValue";
private SharedPreferences backcolorprefs;
private static int backcolorValue = 0;

in the onCreate method of the other activity i put this lines

backcolorprefs = getSharedPreferences(SettingsTAG0, 0);
    backcolorprefs.getInt("back_colorcode", backcolorValue);
    View view = this.getWindow().getDecorView();
    view.setBackgroundColor(backcolorValue);

i am a super newbie to android and java but i make a try but nothing is happened

any help please

Upvotes: 0

Views: 559

Answers (3)

ρяσѕρєя K
ρяσѕρєя K

Reputation: 132992

onColorChanged method parameter is color code selected from ColorPicker. save same in SharedPreferences :

public void onColorChanged(int color) {
    Editor editor0 = backcolorprefs.edit();
    editor0.clear();
    editor0.putInt("back_colorcode", color);
    editor0.commit();
}

In second Activity get color code from preference and pass to setBackgroundColor :

int colorCode=backcolorprefs.getInt("back_colorcode", Color.BLACK);
View view = this.getWindow().getDecorView();
view.setBackgroundColor(colorCode);

Upvotes: 0

kelvincer
kelvincer

Reputation: 6138

This is how sharedpreference used:

// put int
SharedPreferences sharedpreferences = getSharedPreferences("MyPreference", Context.MODE_PRIVATE);
Editor editor = sharedpreferences.edit();
editor.putInt("back_colorcode", backcolorValue);
editor.commit();

// get int
SharedPreferences sharedpreferences = getSharedPreferences("MyPreference", Context.MODE_PRIVATE);
int backcolorValue = sharedpreferences.getInt("back_colorcode", 0)

Upvotes: 1

Melquiades
Melquiades

Reputation: 8598

Nothing happened because you are not assigning value read from preferences to backcolorValue. This line:

backcolorprefs.getInt("back_colorcode", backcolorValue);

simply reads it and DOESN'T store in backcolorValue. Do:

backcolorValue = backcolorprefs.getInt("back_colorcode", backcolorValue);

Also, in onColorChanged, I don't see that you're initialising backcolorprefs, so make sure you do. Btw, for getSharedPreferences, you should use constant Context.MODE_PRIVATE, instead of hardcoded value of 0.

Upvotes: 0

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