Bella Yulianita: Login - Mobile Programming

Bismillahirohmanirohim ...

MainActivity.Java

package com.example.login;

import android.os.Bundle;

import android.app.Activity;
import android.app.AlertDialog;
import android.content.DialogInterface;
import android.content.Intent;
import android.view.Menu;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;

public class MainActivity extends Activity implements OnClickListener {
Button masuk;
AlertDialog alert;
EditText password;
EditText user;
String isi_passwd, username;
Intent i=null;

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
masuk=(Button) this.findViewById(R.id.button1);
masuk.setOnClickListener(this);

//edit text untuk username
user=(EditText)findViewById(R.id.editText1);
user.getText();

//edit text untuk password
password=(EditText)findViewById(R.id.editText2);
password.getText();

username="bela_yulianita@yahoo.com";
isi_passwd="12345";
}
public void onClick(View tombol_act){
//TODO Auto-generated method stub
if(tombol_act==masuk){

if(password.getText().toString().equals(isi_passwd) && user.getText().toString().equals(username)){
AlertDialog.Builder pesan=new AlertDialog.Builder(this);
pesan.setMessage("username dan password anda benar").setCancelable(false).setPositiveButton("OK",new DialogInterface.OnClickListener() {

@Override
public void onClick(DialogInterface dialog, int which) {
// TODO Auto-generated method stub
i=new Intent(MainActivity.this,ActivitySegitiga.class);
startActivity(i);

}
});
alert=pesan.create();
alert.show();
}else{
AlertDialog.Builder pesan=new AlertDialog.Builder(this);
pesan.setMessage("Username: " + user.getText() + "dan Password: "+password.getText()+"anda masih SALAH").setCancelable(false).setPositiveButton("OK", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
// TODO Auto-generated method stub
user.setText("");
password.setText("");
}
});
alert=pesan.create();
alert.show();
}
}
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}

}

ActivitySegitiga.Java

package com.example.login;

import android.os.Bundle;

import android.app.Activity;

import android.view.Menu;

import android.view.View;

import android.widget.Button;

import android.widget.EditText;

public class ActivitySegitiga extends Activity {

private EditText txtAlas;

private EditText txtTinggi;

private EditText txtLuas;

private Button btnHitung;

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_activity_segitiga);

txtAlas=(EditText)findViewById(R.id.editText1);

txtTinggi=(EditText)findViewById(R.id.editText2);

txtLuas=(EditText)findViewById(R.id.editText3);

btnHitung=(Button)findViewById(R.id.button1);

}

public void hitungLuas(View view){

try{

int alas=

Integer.parseInt(txtAlas.getText().toString());

int tinggi=

Integer.parseInt(txtTinggi.getText().toString());

int luas=(alas*tinggi)/2;

txtLuas.setText(String.valueOf(luas));

}catch(Exception e){

e.printStackTrace();

}

@Override

public boolean onCreateOptionsMenu(Menu menu) {

// Inflate the menu; this adds items to the action bar if it is present.

getMenuInflater().inflate(R.menu.activity_segitiga, menu);

return true;

}

activity_main.xml

<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: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" >

<TextView

android:id="@+id/textView1"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:layout_alignParentLeft="true"

android:layout_alignParentTop="true"

android:layout_marginLeft="18dp"

android:layout_marginTop="18dp"

android:text="Username" />

<TextView

android:id="@+id/textView2"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:layout_alignParentLeft="@+id/textView1"

android:layout_below="@+id/textView1"

android:layout_marginTop="66dp"

android:text="Password" />

<EditText

android:id="@+id/editText1"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:layout_alignParentLeft="@+id/textView1"

android:layout_below="@+id/textView1"

android:layout_marginTop="14dp"

android:ems="10" >

</EditText>

<EditText

android:id="@+id/editText2"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:layout_alignParentLeft="@+id/textView2"

android:layout_below="@+id/textView2"

android:layout_marginTop="17dp"

android:ems="10" />

<Button

android:id="@+id/button1"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:layout_alignParentRight="true"

android:layout_below="@+id/editText2"

android:layout_marginRight="54dp"

android:layout_marginTop="34dp"

android:text="Login" />

</RelativeLayout>

activity_activity_segitiga.xml

<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: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=".ActivitySegitiga" >

<TextView

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:text="@string/hello_world" />

<TextView

android:id="@+id/textView1"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:layout_alignParentLeft="true"

android:layout_alignParentTop="true"

android:layout_marginLeft="20dp"

android:layout_marginTop="25dp"

android:text="Alas" />

<TextView

android:id="@+id/textView2"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:layout_alignLeft="@+id/textView1"

android:layout_below="@+id/textView1"

android:layout_marginTop="66dp"

android:text="Tinggi" />

<TextView

android:id="@+id/textView3"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:layout_alignLeft="@+id/textView2"

android:layout_below="@+id/button1"

android:layout_marginTop="45dp"

android:text="Luas" />

<EditText

android:id="@+id/editText1"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:layout_alignBaseline="@+id/textView1"

android:layout_alignBottom="@+id/textView1"

android:layout_alignLeft="@+id/button1"

android:ems="10" >

</EditText>

<EditText

android:id="@+id/editText3"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:layout_alignBaseline="@+id/textView3"

android:layout_alignBottom="@+id/textView3"

android:layout_alignRight="@+id/editText2"

android:ems="10" />

<Button

android:id="@+id/button1"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:layout_below="@+id/textView1"

android:layout_marginLeft="39dp"

android:layout_toRightOf="@+id/textView4"

android:onClick="hitungLuas"

android:text="Hitung" />

<EditText

android:id="@+id/editText2"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:layout_above="@+id/editText3"

android:layout_alignLeft="@+id/button1"

android:ems="10" />

</RelativeLayout>

utama.xml

<?xml version="1.0" encoding="utf-8"?>

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

android:layout_width="match_parent"

android:layout_height="match_parent"

android:orientation="vertical" >

<TextView

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:layout_alignParentLeft="true"

android:layout_alignParentTop="true"

android:layout_marginLeft="18dp"

android:layout_marginTop="18dp"

android:text="Selamat Datang Admin" />

</LinearLayout>

AndroidManifest

<?xml version="1.0" encoding="utf-8"?>

<manifest xmlns:android="http://schemas.android.com/apk/res/android"

package="com.example.login"

android:versionCode="1"

android:versionName="1.0" >

<uses-sdk

android:minSdkVersion="3"

android:targetSdkVersion="3" />

<application

android:icon="@drawable/ic_launcher"

android:label="@string/app_name"

android:theme="@style/AppTheme" >

<activity

android:name="com.example.login.MainActivity"

android:label="@string/app_name" >

<intent-filter>

</intent-filter>

</activity>

<activity

android:name="com.example.login.ActivitySegitiga"

android:label="@string/title_activity_activity_segitiga" >

</activity>

</application>

</manifest>

Bella Yulianita

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Senin, 03 Juni 2013

Login - Mobile Programming

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