Saturday, 7 February 2015

Android Studio Calculator Example

Hi , Now I am moving towards new Program that is Android Studio Calculator , a very basic calculator which will look as below :


Calculator Example Android Studio

Step 1 : Create a new project named as Android Studio Calculator Example 

Calculator Example Android Studio


Step 2 : activity_main.xml


Now , add one textview to show output .
In two textview with text as First no. and other Second no. 
Two editview to enter no.s
Four buttons as ADD,SUB,MUL and DIV

Below is the code for 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:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    android:paddingBottom="@dimen/activity_vertical_margin" tools:context=".MainActivity">

    <LinearLayout
        android:orientation="vertical"
        android:layout_width="fill_parent"
        android:layout_height="fill_parent"
        android:layout_alignParentTop="true"
        android:layout_alignParentLeft="true"
        android:layout_alignParentStart="true"
        android:weightSum="1"
        android:background="#fff9fdff">

        <TextView
            android:layout_width="match_parent"
            android:layout_height="100dp"
            android:text=""
            android:id="@+id/textView1"
            android:visibility="visible"
            android:autoText="true"
            android:background="#fffffad9" />

        <LinearLayout
            android:orientation="horizontal"
            android:layout_width="match_parent"
            android:layout_height="@android:dimen/app_icon_size"
            android:layout_weight="0.19">


            <TextView
                android:layout_width="10dp"
                android:layout_height="wrap_content"
                android:textAppearance="?android:attr/textAppearanceMedium"
                android:text="First No."
                android:id="@+id/textView2"
                android:layout_weight="0.09" />

            <EditText
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:id="@+id/editText1"
                android:layout_weight="0.09" />



            <TextView
                android:layout_width="10pt"
                android:layout_height="wrap_content"
                android:textAppearance="?android:attr/textAppearanceMedium"
                android:text="Second No."
                android:id="@+id/textView3"
                android:layout_weight="0.09" />

            <EditText
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:id="@+id/editText2"
                android:layout_weight="0.09" />
        </LinearLayout>

        <Button
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:text="ADD"
            android:id="@+id/button1"
            android:layout_alignParentBottom="true"
            android:layout_alignParentRight="true"
            android:layout_alignParentEnd="true" />

        <Button
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:text="SUB"
            android:id="@+id/button2" />

        <Button
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:text="MUL"
            android:id="@+id/button3" />

        <Button
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:text="DIV"
            android:id="@+id/button4" />
    </LinearLayout>

</RelativeLayout>

Step 3: MainActivity.java