Trouble generating keyhash for Facebook SDK integration with your application, here is the java code to generate keyhash.
Add the following code inside onCreate()
try {
PackageInfo info = getPackageManager().getPackageInfo(
"YOUR_PACKAGE_NAME",
PackageManager.GET_SIGNATURES);
for (Signature signature : info.signatures) {
MessageDigest md = MessageDigest.getInstance("SHA");
md.update(signature.toByteArray());
System.out.println("KeyHash : "+ Base64.encodeToString(md.digest(), Base64.DEFAULT));
}
} catch (NameNotFoundException e) {
} catch (NoSuchAlgorithmException e) {
}
NOTE: Do not forget to replace YOUR_PACKAGE_NAME with your Main activity package name. After running the application you will find the key hash in LogCat.
Generate Facebook Android SDK key hash using java code
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