Membuat MD5 di Android

Haloo semua,

Sudah lumayan lama saya tidak memposting, kali ini saya akan membagikan cara membuat md5 pada Android.

pertama buat activity_main.xml untuk view nya :

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
 xmlns:tools="http://schemas.android.com/tools"
 android:layout_width="match_parent"
 android:layout_height="match_parent"
 android:background="#b331b6e7"
 android:paddingBottom="@dimen/activity_vertical_margin"
 android:paddingLeft="@dimen/activity_horizontal_margin"
 android:paddingRight="@dimen/activity_horizontal_margin"
 android:paddingTop="@dimen/activity_vertical_margin"
 tools:context=".MainActivity" >

 <EditText
 android:id="@+id/edittext1"
 android:layout_width="match_parent"
 android:layout_height="wrap_content"
 android:layout_marginTop="14dp"
 android:background="@drawable/abs__textfield_search_default_holo_light"
 android:hint="@string/value_hint"
 android:padding="5dp"
 android:singleLine="true"
 android:textColor="#f0f0f0"
 android:textColorHint="#f0f0f0"
 android:textSize="16sp" />

 <TextView
 android:id="@+id/textview2"
 android:layout_width="match_parent"
 android:layout_height="wrap_content"
 android:layout_below="@+id/edittext1"
 android:layout_centerHorizontal="true"
 android:layout_marginTop="18dp"
 android:gravity="center"
 android:padding="5dp"
 android:text="@string/value_md5"
 android:textColor="#ffffff"
 android:textSize="13sp"
 android:textStyle="bold" />

 <Button
 android:id="@+id/button1"
 android:layout_width="match_parent"
 android:layout_height="wrap_content"
 android:layout_below="@+id/textview2"
 android:layout_marginTop="20dp"
 android:background="#039bcf"
 android:padding="10dp"
 android:text="@string/button1"
 android:textColor="#f0f0f0"
 android:textSize="15sp" />

 <TextView
 android:id="@+id/textview1"
 android:layout_width="wrap_content"
 android:layout_height="wrap_content"
 android:layout_alignParentBottom="true"
 android:layout_centerHorizontal="true"
 android:gravity="center"
 android:padding="5dp"
 android:text="@string/footer"
 android:textColor="#ffffff"
 android:textSize="12sp" />

</RelativeLayout>

sekarang buat MainActivity.java :

package com.kreativdeveloper.md5;

import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;

import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;

public class MainActivity extends Activity { 
 private TextView mTextView;
 private EditText mEdittext;
 private Button mButton;

 @Override
 protected void onCreate(Bundle savedInstanceState) {
 super.onCreate(savedInstanceState);
 setContentView(R.layout.activity_main);

 mEdittext = (EditText) findViewById(R.id.edittext1);
 mTextView = (TextView) findViewById(R.id.textview2);
 mButton = (Button) findViewById(R.id.button1);
 
 mButton.setOnClickListener(new OnClickListener() {
 @Override
 public void onClick(View v) {
 computeMD5();
 }
 });
 
 }
 
 private void computeMD5() {
 String password = mEdittext.getText().toString();
 try {
 
 MessageDigest digest = java.security.MessageDigest.getInstance("MD5");
 
 digest.update(password.getBytes());
 
 byte messageDigest[] = digest.digest();

 StringBuffer MD5Hash = new StringBuffer();
 for (int i = 0; i < messageDigest.length; i++) {
 String h = Integer.toHexString(0xFF & messageDigest[i]);
 while (h.length() < 2)
 h = "0" + h;
 MD5Hash.append(h);
 }

 mTextView.setText("Hasil MD5 : \n" + MD5Hash);

 } catch (NoSuchAlgorithmException e) {
 e.printStackTrace();
 }

 }

}

kalian juga bisa download source code nya download disini

jangan lupa tinggalkan komentar kalian disini :D