Introduction

This article demonstrates how to create a circular fill loader to an android application using the Android studio. This is an Android project allowing us to realize a beautiful circular fillable loader to be used for splash screen.
Let's start
Step 1
Open, Android studio creates a new project in Android studio. When it prompts you to select the default activity, select Empty Activity and proceed.
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Step 2
Next, go to Gradle Scripts >> build. gradle (Module: app),
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Select build.gradle (Module: app). The app Gradle compile code and build types will appear. Just replace that the following code. To make a circular fillable loader add Circular Fillable Loader in your layout XML and add Circular Fillable Loader library in your project or you can also grab it via Gradle.
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Compile Code
  1. compile 'com.mikhaellopez:circularfillableloaders:1.2.0'
Step 3
Next, go to app >> res >> layout >> activity_main.xml. Select activity_main.xml page. The xml code will appear, Just the following code.
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Circular Fillable Loader

com.mikhaellopez.circularfillableloaders.CircularFillableLoaders this code applied to Circular Loader shape will appear.

SeekBar Controller

A SeekBar is an extension of ProgressBar that adds a draggable thumb. The user can touch the thumb and drag left or right to set the current progress level or use the arrow keys. Placing focusable widgets to the left or right of a SeekBar is discouraged.
CircularImageView Properties
  • app:cfl_border="true" --> default true
  • app:cfl_border_width="12dp" --> default 4dp
  • app:cfl_progress="80" --> default 0
  • app:cfl_wave_amplitude="0.06" --> default 0.05f(between 0.00f and 0.10f)
  • app:cfl_wave_color="#F44336" --> default Back color
XML Code
  1. <?xml version="1.0" encoding="utf-8"?>
  2. <RelativeLayout
  3. android:id="@+id/activity_main"
  4. xmlns:android="http://schemas.android.com/apk/res/android"
  5. xmlns:app="http://schemas.android.com/apk/res-auto"
  6. xmlns:tools="http://schemas.android.com/tools"
  7. android:layout_width="match_parent"
  8. android:layout_height="match_parent"
  9. android:paddingBottom="16dp"
  10. android:paddingLeft="16dp"
  11. android:paddingRight="16dp"
  12. android:paddingTop="16dp"
  13. tools:context="com.example.ravir.circularlibrary.MainActivity">
  15. <com.mikhaellopez.circularfillableloaders.CircularFillableLoaders
  16. android:id="@+id/circularFillableLoaders"
  17. android:layout_width="200dp"
  18. android:layout_height="200dp"
  19. android:layout_centerInParent="true"
  20. android:src="@drawable/alien" // import ur image png format
  21. app:cfl_border="true"
  22. app:cfl_border_width="12dp"
  23. app:cfl_progress="80"
  24. app:cfl_wave_amplitude="0.06"
  25. app:cfl_wave_color="#F44336" />
  27. <SeekBar
  28. android:id="@+id/seekBar"
  29. android:layout_width="match_parent"
  30. android:layout_height="wrap_content"
  31. android:layout_alignParentStart="true"
  32. android:layout_below="@+id/circularFillableLoaders"
  33. android:layout_marginTop="37dp"
  34. android:layout_alignParentLeft="true" />
  36. </RelativeLayout>
Step 4
Next, go to app >> java >> your domain !! >> MainActivity.
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Select the MainActivity page. The Java code will appear, Just replace the following code
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Java Code
  1. package com.example.ravir.circularlibrary;
  3. import android.support.v7.app.AppCompatActivity;
  4. import android.os.Bundle;
  5. import android.widget.SeekBar;
  6. import com.mikhaellopez.circularfillableloaders.CircularFillableLoaders;
  8. public class MainActivity extends AppCompatActivity {
  10. CircularFillableLoaders circularFillableLoaders;
  11. SeekBar seekBar;
  12. int currentProgress = 80;
  14. @Override
  15. protected void onCreate(Bundle savedInstanceState) {
  16. super.onCreate(savedInstanceState);
  17. setContentView(R.layout.activity_main);
  19. circularFillableLoaders = (CircularFillableLoaders)findViewById(R.id.circularFillableLoaders);
  22. seekBar = (SeekBar)findViewById(R.id.seekBar);
  23. seekBar.setMax(100);
  24. seekBar.setProgress(currentProgress);
  26. seekBar.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() {
  27. @Override
  28. public void onProgressChanged(SeekBar seekBar, int progress, boolean b) {
  29. circularFillableLoaders.setProgress(progress);
  31. }
  33. @Override
  34. public void onStartTrackingTouch(SeekBar seekBar) {
  36. }
  38. @Override
  39. public void onStopTrackingTouch(SeekBar seekBar) {
  41. }
  42. });
  43. }
  44. }
public void onProgressChangeListener (new SeekBar. OnSeekBar ChangeListner() {...} )
This listener method will be invoked if any change is made in the SeekBar.
public void onStartTrackingTouch(SeekBar seekBar){..}
This listener method will be invoked at the start of the user's touch event. Whenever a user touches the thumb for dragging this method will automatically be called.
public void onStopTrackingTouch(SeekBar seekBar){..}
This listener method will be invoked at the end of the user's touch event. Whenever a user stops dragging the thumb this method will automatically call.
Step 5
Next, go to Android Studio and Deploy the application, Select Emulator or your Android mobile with USB debugging enabled. Give it a few sec to make installations and set permission.
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Step 6
Run the application in your desired emulator (Shift + F10)
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Summary

Finally, we have successfully created Circular Fillable Loader View. Later we will discuss more Android Applications.