i am working on a small basic program to display a calculator through in prefix of log in form in which i am having the following code.here i am having three .java files
1.Mainactivity.java
2.Signinactivity.java
3.Signupactivity.java
1.here is content of Maainactivity.java
package com.hmkcode.android.sign;
import android.os.Bundle;
import android.app.Activity;
import android.content.Intent;
import android.view.Menu;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
public class MainActivity extends Activity implements OnClickListener {
Button btnSignIn;
Button btnSignUp;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
btnSignIn = (Button) findViewById(R.id.btnSingIn);
btnSignUp = (Button) findViewById(R.id.btnSignUp);
btnSignIn.setOnClickListener(this);
btnSignUp.setOnClickListener(this);
}
@Override
public void onClick(View v) {
Intent i = null;
switch(v.getId()){
case R.id.btnSingIn:
i = new Intent(this,SignInActivity.class);
break;
case R.id.btnSignUp:
i = new Intent(this,SignUpActivity.class);
break;
}
startActivity(i);
}
}
2.here is content of Signinactivity.java
package com.hmkcode.android.sign;
import android.os.Bundle;
import android.app.Activity;
import android.graphics.Color;
import android.view.Menu;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;
import android.widget.Toast;
public class SignInActivity extends Activity {
private EditText username=null;
private EditText password=null;
private TextView attempts;
private Button login;
int counter = 3;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_sign_in_screen);
username = (EditText)findViewById(R.id.editText1);
password = (EditText)findViewById(R.id.editText2);
attempts = (TextView)findViewById(R.id.textView5);
attempts.setText(Integer.toString(counter));
login = (Button)findViewById(R.id.button1);
}
public void login(View view){
if(username.getText().toString().equals("admin") &&
password.getText().toString().equals("admin")){
Toast.makeText(getApplicationContext(), "Redirecting...",
Toast.LENGTH_SHORT).show();
}
else{
Toast.makeText(getApplicationContext(), "Wrong Credentials",
Toast.LENGTH_SHORT).show();
attempts.setBackgroundColor(Color.RED);
counter--;
attempts.setText(Integer.toString(counter));
if(counter==0){
login.setEnabled(false);
}
}
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
}
3.here is content of Signupactivity.java
package com.hmkcode.android.sign;
import android.os.Bundle;
import android.app.Activity;
import android.view.Menu;
public class SignUpActivity extends Activity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_sign_up_screen);
}
}
And the three XML layouts namely in res/layout
1.activity_main.xml
2.activity_sign_in_screen.xml
3.activity_sign_up_screen.xml
1.here is content of 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"
android:removed="@drawable/balloon_bg">
<LinearLayout
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_centerInParent="true"
android:removed="@drawable/linearlayout_bg"
android:padding="10dp"
>
<Button
android:id="@+id/btnSignUp"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:padding="10dp"
android:layout_margin="4dp"
android:text="Sign Up"
android:background="@drawable/button_default_bg"
style="@style/DefaultButtonText"
/>
<Button
android:id="@+id/btnSingIn"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:padding="10dp"
android:layout_margin="4dp"
android:text="Sign In"
style="@style/DefaultButtonText"
android:background="@drawable/button_default_bg"
/>
</LinearLayout>
</RelativeLayout>
1.here is content of activity_sign_in_screen.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_alignParentTop="true"
android:layout_centerHorizontal="true"
android:layout_marginTop="18dp"
android:text="@string/hello_world"
android:textAppearance="?android:attr/textAppearanceLarge" />
<TextView
android:id="@+id/textView2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_below="@+id/textView1"
android:layout_marginTop="50dp"
android:text="@string/username"
android:textAppearance="?android:attr/textAppearanceMedium" />
<EditText
android:id="@+id/editText1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignBottom="@+id/textView2"
android:layout_marginLeft="32dp"
android:layout_toRightOf="@+id/textView2"
android:ems="10" >
<requestFocus />
</EditText>
<TextView
android:id="@+id/textView3"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignLeft="@+id/textView2"
android:layout_below="@+id/textView2"
android:layout_marginTop="38dp"
android:text="@string/password"
android:textAppearance="?android:attr/textAppearanceMedium" />
<EditText
android:id="@+id/editText2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignBottom="@+id/textView3"
android:layout_alignLeft="@+id/editText1"
android:ems="10"
android:inputType="textPassword" />
<Button
android:id="@+id/button1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@+id/editText2"
android:layout_centerHorizontal="true"
android:layout_marginTop="94dp"
android:/>
<TextView
android:id="@+id/textView4"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignLeft="@+id/textView3"
android:layout_below="@+id/textView3"
android:layout_marginLeft="30dp"
android:layout_marginTop="48dp"
android:text="@string/attempts"
android:textAppearance="?android:attr/textAppearanceMedium" />
<TextView
android:id="@+id/textView5"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignRight="@+id/textView1"
android:layout_alignTop="@+id/textView4"
android:text="TextView" />
</RelativeLayout>
3.here is content of activity_sign_up_screen.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"
android:removed="#ffffff">
<LinearLayout
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_centerInParent="true"
android:padding="10dp"
>
<EditText
android:id="@+id/etEmail"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:removed="@drawable/edittext_top_bg"
android:padding="10dp"
android:hint="Email"
android:textColorHint="#bbbbbb"
android:drawableLeft="@drawable/email"/>
<EditText
android:id="@+id/etUserName"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:removed="@drawable/edittext_default_bg"
android:layout_marginTop="-2dp"
android:padding="10dp"
android:hint="User Name"
android:textColorHint="#bbbbbb"
android:drawableLeft="@drawable/user"/>
<EditText
android:id="@+id/etPass"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:removed="@drawable/edittext_bottom_bg"
android:layout_marginTop="-2dp"
android:padding="10dp"
android:hint="Password"
android:textColorHint="#bbbbbb"
android:password="true"
android:drawableLeft="@drawable/password"/>
<Button
android:id="@+id/btnSingIn"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:padding="10dp"
android:layout_margin="4dp"
android:text="Sign Up"
style="@style/DefaultButtonText"
android:background="@drawable/button_default_bg"
/>
</LinearLayout>
</RelativeLayout>
And also here is content of res/values/
string.xml
="1.0"="utf-8"
<resources>
<string name="app_name">Sign In&Up</string>
<string name="action_settings">Settings</string>
<string name="hello_world">Hello world!</string>
<string name="username">Username:</string>
<string name="password">Password:</string>
<string name="Login">Login:</string>
<string name="attempts">Attempts Left:</string>
<style name="DefaultButtonText">
<item name="android:layout_width">fill_parent</item>
<item name="android:layout_height">wrap_content</item>
<item name="android:textColor">#979797</item>
<item name="android:gravity">center</item>
<item name="android:layout_margin">3dp</item>
<item name="android:textStyle">normal</item>
<item name="android:textSize">20sp</item>
<item name="android:shadowColor">#f9f9f9</item>
<item name="android:shadowDx">1</item>
<item name="android:shadowDy">1</item>
<item name="android:shadowRadius">1</item>
</style>
</resources>
And the content of Androidmanifest.xml is
="1.0"="utf-8"
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.hmkcode.android.sign"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="8"
android:targetSdkVersion="17" />
<application
android:allowBackup="true"
android:icon="@drawable/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme" >
<activity
android:name="com.hmkcode.android.sign.MainActivity"
android:label="@string/app_name"
android:theme="@android:style/Theme.Black.NoTitleBar.Fullscreen" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity
android:name="com.hmkcode.android.sign.SignUpActivity"
android:label="@string/app_name"
android:theme="@android:style/Theme.Black.NoTitleBar.Fullscreen" >
<intent-filter>
<action android:name="android.intent.action.SignUpActivity" />
<category android:name="android.intent.category.DEFAULT" />
</intent-filter>
</activity>
<activity
android:name="com.hmkcode.android.sign.SignInActivity"
android:label="@string/app_name"
android:theme="@android:style/Theme.Black.NoTitleBar.Fullscreen">
<intent-filter>
<action android:name="android.intent.action.SignInActivity" />
<category android:name="android.intent.category.DEFAULT" />
</intent-filter>
</activity>
</application>
</manifest>
Iam getting the output as it is written in code of activity_main.xml,when i am pressing the sign in button then it goes to next layout of activity_sign_up_screen.xml
then login screen appears ,then when i click the login button it is diplayin redirecting according to the given code but the main problem is i need to keep the simple calculator project which i go from
here
As iam totally new and dont have knowledge of android and also java,would anyone please help me ..
Thanks in advance