Android Floating Action Button- Simple Example

1. The Project Download Link

The entire project can be downloaded from this github repo.

2. Adding Dependencies

We just need to add the following sentence to build.gradle. This allows you to add supporting material design components and patterns to your apps.

 compile 'com.android.support:design:24.2.1'

3. Adding Floating Action Button

Next, we need to add floating action button to activity_main.xml.

    <android.support.design.widget.FloatingActionButton
        android:id="@+id/fab_button"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="bottom|end"
        android:layout_margin="16dp"
        android:src="@android:drawable/ic_menu_send" />

The complete activity_main.xml will be like this after adding the above code.

<?xml version="1.0" encoding="utf-8"?>
<android.support.design.widget.CoordinatorLayout 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:fitsSystemWindows="true"
    tools:context="com.example.aknay.floatingactionbutton.MainActivity">

    <android.support.design.widget.FloatingActionButton
        android:id="@+id/fab_button"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="bottom|end"
        android:layout_margin="16dp"
        android:src="@android:drawable/ic_menu_send" />

</android.support.design.widget.CoordinatorLayout>

4. Adding click action for Floating Action Button

Finally, all we just need to add is set on click listener for the floating action button in MainActivity. We want to see action when click on it, don’t we?

        FloatingActionButton mFloatActionButton = (FloatingActionButton) findViewById(R.id.fab_button);
        mFloatActionButton.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                Toast.makeText(MainActivity.this, "Sending dummy email", Toast.LENGTH_SHORT).show();
            }
        });

The complete code for ‘MainActivity.java’ will be like the following code.

import android.support.design.widget.FloatingActionButton;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Toast;

public class MainActivity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        FloatingActionButton mFloatActionButton = (FloatingActionButton) findViewById(R.id.fab_button);
        mFloatActionButton.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                Toast.makeText(MainActivity.this, "Sending dummy email", Toast.LENGTH_SHORT).show();
            }
        });

    }
}

5. Run the Application

You will see this view after the application is successfully run.

Get Latitude and Longitude using GPS in Android

Objective:
To retrieve Latitude and Longitude of current position using GPS

Function:

When the button is pressed, small pop up will be displayed to inform the status of GPS. If GPS is not enable, GPS dialog will be pop up and let user to choose setting. Once the GPS is enable, 'GPS is already enable' will be pop up after the 'Get GPS Status' Button is pressed. Then latitude and longitude will be displayed as pop up. 

IDE:
Android Studio 1.0.2

Source Code:
The project can be downloaded from here.

Note:
This is the continuous tutorial from here.

Result:

                       

Check GPS status and open dialog to set GPS setting

Objective:
To check GPS status and open dialog to set GPS setting

Function:

When the button is pressed, small pop up will be displayed to inform the status of GPS. If GPS is not enable, GPS dialog will be pop up and let user to choose setting. Once the GPS is enable, 'GPS is already enable' will be pop up after the 'Get GPS Status' Button is pressed.

IDE:
Android Studio 1.0.2

Source Code:
The project can be downloaded from here.

Note:
This is the continuous tutorial from here.

Result:

                                                   

Check GPS status in Android Studio

Objective:
To check GPS status

Function:

When the button is pressed, small pop up will be displayed to inform the status of GPS. GPS satellites has to be selected by user manually. You cannot enable the GPS directly in your code for various reasons such as battery drain and privacy.

IDE:
Android Studio 1.0.2

Source Code:
The project can be downloaded from here.


Result:

Retrieve current time using Json in Android Studio

Objective:
To retrieve current time using Json

Function:

When the button is pressed, small pop up will be displayed to inform the status of network connectivity. Once network is established, Json data will be retrieved and display it on TextView. Time is based on GMT.

IDE:
Android Studio 1.0.2

Source Code:
The project can be downloaded from here.

Result:

Toggle Solar Noon and current time using Json in Android Studio

Objective:
To toggle current time and solar noon time using Json

Function:

When the toggle is pressed, small pop up will be displayed to inform the status of network connectivity. Once network is established, Json data will be retrieved and display it on TextView.

IDE:
Android Studio 1.0.2

Source Code:
The project can be downloaded from here.

Result: