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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