Dynamically Getting All Image Resource Id In An Array

there are many images in drawable foder so instead manually creating array of all image resource ids , i want to get all images dynamically of drawable folder in array. currently

Solution 1:

you can Use Reflection to achieve this.

import the Field class

import java.lang.reflect.Field;

and then write this in your code

Field[] ID_Fields = R.drawable.class.getFields();
int[] resArray = newint[ID_Fields.length];
for(int i = 0; i < ID_Fields.length; i++) {
    try {
        resArray[i] = ID_Fields[i].getInt(null);
    } catch (IllegalArgumentException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }
}

resArray[] now holds references to all the drawables in your application.

Solution 2:

Well, If your image names are img1, img2 and so on, then you can create a variable like

Stringurl="drawable/"+"img"+i;

intimageKey= getResources().getIdentifier(url, "drawable", getPackageName());

you can also replace your getPackageName() method by your package name like "com.android.resource" Simply,the general function is

publicint getIdentifier(String name, String defType, String defPackage)