java - How to initialize a static SparseArray -

how can initialize static, unmodifiable instance of android.util.sparsearray?

you cannot attempting to. @ least, not how attempting it. there no implementation of sparsearray unmodifiable.

however, create one. here's how:

• create class, customsparsearray<e>, , have extend sparsearray.

• override all methods change elements in array, , replace them this:

  @override public void append(int key, e value) {     if (mlocked)         return; // maybe throw exception     super.append(key, value); } 

• then, add in member variable class, boolean mlocked = false;.

• next, need method following:

  public void lock() { mlocked = true; } 

• lastly, implement static variable using method similar in the other post:

  public class test {     private static final customsparsearray<integer> myarray;     static {         myarray = new customsparsearray<integer>();         myarray.append(1, 1);         myarray.append(2, 5);         myarray.lock();     } } 

then have unmodifiable sparsearray in static variable myarray.