1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 | <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> |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 | 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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