新建安裝java項(xiàng)目，MainActivity里面替換下面代碼，運(yùn)行搜索KeyHash: 即使正式Facebook秘鑰散列
import androidx.appcompat.app.AppCompatActivity;
import android.content.pm.PackageInfo;
import android.content.pm.PackageManager;
import android.content.pm.Signature;
import android.os.Bundle;
import android.util.Base64;
import android.util.Log;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
public class MainActivity extends AppCompatActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
facebookHashKey();
}
//Facebook秘鑰散列獲取
private void facebookHashKey() {
try {
PackageInfo info = getPackageManager().getPackageInfo("com.hnqxtech.funwalk", PackageManager.GET_SIGNATURES);
for (Signature signature : info.signatures) {
MessageDigest md = MessageDigest.getInstance("SHA");
md.update(signature.toByteArray());
Log.d("KeyHash:", Base64.encodeToString(md.digest(), Base64.DEFAULT));
}
} catch (PackageManager.NameNotFoundException e) {
} catch (NoSuchAlgorithmException e) {
}
}
}
