Sunday, February 1, 2015

Android Tutorial for Beginners 10 # Android RadioButton Basics With Example









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<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"
    android:id="@+id/abc">

    <RadioGroup
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginTop="36dp"
        android:layout_below="@+id/button"
        android:layout_alignParentLeft="true"
        android:layout_alignParentStart="true"
        android:id="@+id/rg_animals">

        <RadioButton
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="Dog"
            android:id="@+id/radioButton_dog"
            android:checked="false" />

        <RadioButton
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="Cat"
            android:id="@+id/radioButton_cat"
            android:checked="false" />

        <RadioButton
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="Cow"
            android:id="@+id/radioButton_cow"
            android:checked="false" />

    </RadioGroup>

    <Button
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Submit"
        android:id="@+id/button"
        android:layout_marginTop="25dp"
        android:layout_alignParentTop="true"
        android:layout_alignParentLeft="true"
        android:layout_alignParentStart="true" />
</RelativeLayout>












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package com.example.programmingknowledge.thefirstapp;

import android.support.v7.app.ActionBarActivity;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.Button;
import android.widget.RadioButton;
import android.widget.RadioGroup;
import android.widget.Toast;

public class MainActivity extends ActionBarActivity {
     private static  RadioGroup radio_g;
     private static  RadioButton radio_b;
    private static Button button_sbm;
     @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
         onClickListenerButton();
    }

    public void onClickListenerButton() {
        radio_g = (RadioGroup)findViewById(R.id.rg_animals);
        button_sbm = (Button)findViewById(R.id.button);

        button_sbm.setOnClickListener(
                new View.OnClickListener() {
                    @Override
                    public void onClick(View v) {
                        int selected_id = radio_g.getCheckedRadioButtonId();
                        radio_b = (RadioButton)findViewById(selected_id);
                        Toast.makeText(MainActivity.this,
                                radio_b.getText().toString(),Toast.LENGTH_SHORT ).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.menu_main, menu);
        return true;
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        // Handle action bar item clicks here. The action bar will
        // automatically handle clicks on the Home/Up button, so long
        // as you specify a parent activity in AndroidManifest.xml.
        int id = item.getItemId();

        //noinspection SimplifiableIfStatement
        if (id == R.id.action_settings) {
            return true;
        }

        return super.onOptionsItemSelected(item);
    }
}









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Extra Tags : Android,  programming, tutorial, beginners , develop, ,mobile phone, Environment Setup, Application Components, Activity Lifecycle, Service Lifecycle, Application Architecture, Publishing Application, Debugging  Applications, Hadnling Events, Layouts, User Interface Controls, Styles and Themes,  Handling Rotation, data storage, managing media, Send Email, Send SMS, Phone Calls, Checkbox , Android components, RadioButton click listener,select multiple items,show selected checkbox

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