For example, you want to set 40% alpha transparence to #000000
(black color), you need to add 66
like this #66000000
.
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import java.io.UnsupportedEncodingException; | |
import java.security.InvalidAlgorithmParameterException; | |
import java.security.InvalidKeyException; | |
import java.security.NoSuchAlgorithmException; | |
import javax.crypto.BadPaddingException; | |
import javax.crypto.Cipher; | |
import javax.crypto.IllegalBlockSizeException; | |
import javax.crypto.NoSuchPaddingException; | |
import javax.crypto.spec.IvParameterSpec; | |
import javax.crypto.spec.SecretKeySpec; |