String to Drawable Android

Asked Mar 09 '17 at 11:21

Active Dec 30 '18 at 13:02

Viewed 777 times

I stored my drawables list into sharedPreferences as Strings. They were stored as follow:

android.graphics.drawable.BitmapDrawable@269d6f8
android.graphics.drawable.BitmapDrawable@1c71e5b

Now I want to convert them back to Drawable so I can use them. Any Ideas?

Code

 SharedPreferences.Editor editor=sharedpreferences.edit();
 editor.putString(s.getName(),(s.getLogo().toString()));
 editor.commit();

And my Service s is defined as:

public Service(String name, Drawable logo) {
    this.name = name;
    this.logo=logo;
}

I tried to do this but it didn't work

String logo=entry.getValue().toString();
  //convert string to drawable
  byte [] encodeByte=Base64.decode(logo, Base64.DEFAULT);
  Bitmap bitmap= BitmapFactory.decodeByteArray(encodeByte, 0, encodeByte.length);
  Drawable d = new BitmapDrawable(bitmap);

edited Mar 09 '17 at 11:34

asked Mar 09 '17 at 11:21

hana

Retrieve drawables list from sharedPreferences and use it. – Chetan Joshi Mar 09 '17 at 11:22
The problem is I cannot cast a String to a Drawable – hana Mar 09 '17 at 11:24
So how you can store them form drawable to String . – Chetan Joshi Mar 09 '17 at 11:25
paste your code here – Abhishek Singh Mar 09 '17 at 11:25
1

You can retrieve string from shared preference and use reflection to cast string to drawable : Field field = R.drawable.getField("drawable_string_name"); int id = field.getInt(null); Drawable drawable = getResources().getDrawable(id); – Badhrinath Canessane Mar 09 '17 at 11:37
But I don't have the string name – hana Mar 09 '17 at 13:11
@hana I can see you are storing a preference with a key as "s.getName()" and value as "s.getLogo()". You can retrieve back with the below syntax: sharedpreferences.getString("s.getName()", "DEFAULT_VALUE"); You can cast the retrieved string to drawable. – Badhrinath Canessane Mar 09 '17 at 14:04

String to Drawable Android

0 Answers0