MainActivity.java
package com.blogspot.csdevbin.mynewpractice;
import android.support.v7.app.AppCompatActivity; import android.os.Bundle; import android.view.View; import android.widget.Button; import android.widget.Toast; public class MainActivity extends AppCompatActivity { @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); B1(); } private void B1() { Button b1 = (Button) findViewById(R.id.button1); b1.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { Toast.makeText(getApplication(),"Button 1 clicked",Toast.LENGTH_LONG).show(); } }); } } |
activity_main.xml
<?xml version="1.0" encoding="utf-8"?>
<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="com.blogspot.csdevbin.mynewpractice.MainActivity" <Button android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="B1" android:clickable="true" android:id="@+id/button1" android:layout_below="@+id/textView" android:layout_marginTop="54dp" android:layout_alignParentRight="true" android:layout_alignParentEnd="true" android:layout_alignParentLeft="true" android:layout_alignParentStart="true" /> </RelativeLayout> |
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