add a button to toolbar android

1<?xml version="1.0" encoding="utf-8"?>
2<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
3    xmlns:tools="http://schemas.android.com/tools"
4    android:layout_width="match_parent"
5    android:layout_height="match_parent"
6    android:paddingBottom="@dimen/activity_vertical_margin"
7    android:paddingLeft="@dimen/activity_horizontal_margin"
8    android:paddingRight="@dimen/activity_horizontal_margin"
9    android:paddingTop="@dimen/activity_vertical_margin"
10    android:orientation="vertical"
11    tools:context="com.blogspot.android_er.androidtoolbar.MainActivity">
12
13    <android.support.v7.widget.Toolbar
14        android:id="@+id/toolbar"
15        android:layout_width="match_parent"
16        android:layout_height="56dp"
17        android:background="#FFA000">
18        <Button
19            android:id="@+id/toolbarbtn"
20            android:layout_width="wrap_content"
21            android:layout_height="wrap_content"
22            android:text="Button"
23            android:layout_gravity="right"/>
24    </android.support.v7.widget.Toolbar>
25    <TextView
26        android:layout_width="wrap_content"
27        android:layout_height="wrap_content"
28        android:text="Hello World!" />
29</LinearLayout>
30

1package com.blogspot.android_er.androidtoolbar;
2
3import android.os.Bundle;
4import android.support.v7.app.AppCompatActivity;
5import android.support.v7.widget.Toolbar;
6import android.view.Menu;
7import android.view.MenuItem;
8import android.view.View;
9import android.widget.Button;
10import android.widget.Toast;
11
12public class MainActivity extends AppCompatActivity {
13
14    Button toolBarBtn;
15
16    @Override
17    protected void onCreate(Bundle savedInstanceState) {
18        super.onCreate(savedInstanceState);
19        setContentView(R.layout.activity_main);
20        Toolbar toolbar = (Toolbar)findViewById(R.id.toolbar);
21        setSupportActionBar(toolbar);
22
23        getSupportActionBar().setTitle("Toolbar example");
24        toolbar.setSubtitle("Android-er.blogspot.com");
25        toolbar.setLogo(android.R.drawable.ic_menu_info_details);
26
27        toolBarBtn = (Button)findViewById(R.id.toolbarbtn);
28        toolBarBtn.setOnClickListener(new View.OnClickListener() {
29            @Override
30            public void onClick(View v) {
31                Toast.makeText(getBaseContext(),
32                        "Button in ToolBar clicked",
33                        Toast.LENGTH_LONG).show();
34            }
35        });
36    }
37
38    @Override
39    public boolean onCreateOptionsMenu(Menu menu) {
40        getMenuInflater().inflate(R.menu.menu_main, menu);
41        return super.onCreateOptionsMenu(menu);
42    }
43
44    @Override
45    public boolean onOptionsItemSelected(MenuItem item) {
46
47        Toast.makeText(this, item.getTitle(), Toast.LENGTH_LONG).show();
48
49        int item_id = item.getItemId();
50        switch(item_id){
51            case R.id.item_checkable1:
52                if(item.isChecked()){
53                    item.setChecked(false);
54                }else{
55                    item.setChecked(true);
56                }
57                break;
58            case R.id.item_checkable2:
59                if(item.isChecked()){
60                    item.setChecked(false);
61                }else{
62                    item.setChecked(true);
63                }
64                break;
65        }
66
67        return super.onOptionsItemSelected(item);
68    }
69}
70
71