Create A TextSwitcher App In Android Application Using Android Studio

Introduction

 
In this article, I will explain how to create the TextSwitcher app in Android applications using Android Studio.
 
Requirements
  • Android Studio 2.1.3
If you want to create a TextSwitcher app, you should follow the steps given below.
 
Step 1
 
Now, open Android Studio and you can choose the file, and subsequently choose New. Afterwords, select New Project.
 
Android
 
Step 2
 
Here, you can create your application name and choose where your project is stored on the location. Then, click NEXT button.
 
Android
 
Now, we can select the version of Android; it is Target Android Devices.
 
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Step 3
 
Here, we can add the activity and click the Next button.
 
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Now, we can write the activity name and click the Finish button.
 
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Step 4
 
Now, open your project and you will go to activity_main.xml and afterward, build the design. You should choose the toolbox if you want some options (TextSwitcher, button), and use the drag and drop method.
 
Android
 
Now, we can see the Graphical User Interface design.
 
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Step 5
 
Here, you need to build on the design and write the.XML code.
 
activity_mai.xml code
  1. <?xml version="1.0" encoding="utf-8"?>  
  2. <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="xyz.rvconstructions.www.textswitcherapp.MainActivity">  
  3.     <TextSwitcher android:id="@+id/simpleTextSwitcher" android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_gravity="center_horizontal" android:layout_marginTop="50dp" />  
  4.     <Button android:id="@+id/buttonNext" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_marginTop="150dp" android:layout_gravity="center" android:background="#4b5500" android:textColor="#fff" android:textStyle="bold" android:text="NEXT" />  
  5. </RelativeLayout>  
Step 6
 
Now, you will go to the MainActivity.java page and build Java code.
 
First of all, you will declare a file that's an extension file.
 
Android
 
Now, we can see the MainActivity.java code.
  1. package xyz.rvconstructions.www.textswitcherapp;  
  2. import android.support.v7.app.AppCompatActivity;  
  3. import android.os.Bundle;  
  4. import android.view.Gravity;  
  5. import android.view.View;  
  6. import android.view.animation.Animation;  
  7. .import android.view.animation.AnimationUtils;  
  8. .import android.widget.Button;  
  9. import android.widget.TextSwitcher;  
  10. import android.widget.TextView;  
  11. import android.widget.ViewSwitcher;  
  12. public class MainActivity extends AppCompatActivity {  
  13.     private TextSwitcher firstTextSwitcher;  
  14.     Button bttnNext;  
  15.     String strings[] = {  
  16.         "First Text Switcher ",  
  17.         " SecondText Switcher ",  
  18.         "Third Text Switcher ",  
  19.         " Fourth Text Switcher ",  
  20.         "Five Text Switcher "  
  21.     };  
  22.     int messageCount = strings.length;  
  23.     int currentIndex = -1;  
  24.     @Override  
  25.     protected void onCreate(Bundle savedInstanceState) {  
  26.         super.onCreate(savedInstanceState);  
  27.         setContentView(R.layout.activity_main);  
  28.         bttnNext = (Button) findViewById(R.id.buttonNext);  
  29.         firstTextSwitcher = (TextSwitcher) findViewById(R.id.simpleTextSwitcher);  
  30.         firstTextSwitcher.setFactory(new ViewSwitcher.ViewFactory() {  
  31.             public View makeView() {  
  32.                 TextView t = new TextView(MainActivity.this);  
  33.                 t.setGravity(Gravity.TOP | Gravity.CENTER_HORIZONTAL);  
  34.                 t.setTextSize(36);  
  35.                 return t;  
  36.             }  
  37.         });  
  38.         Animation in = AnimationUtils.loadAnimation(this, android.R.anim.slide_in_left);  
  39.         Animation out = AnimationUtils.loadAnimation(this, android.R.anim.slide_out_right);  
  40.         firstTextSwitcher.setInAnimation( in );  
  41.         firstTextSwitcher.setOutAnimation(out);  
  42.         firstTextSwitcher.setCurrentText("click to next button to switch text");  
  43.         bttnNext.setOnClickListener(new View.OnClickListener() {  
  44.             public void onClick(View v) {  
  45.                 currentIndex++;  
  46.                 if (currentIndex == messageCount)  
  47.                     urrentIndex = 0;  
  48.                 firstTextSwitcher.setText(strings[currentIndex]);  
  49.             }  
  50.         });  
  51.     }  
  52. }  
Step 7
 
Here, you will go running it and select Run-> Run app option.
 
Android
 
Here, you will choose the Emulator or the devices; it is a Nokia Nokia _X.
 
Android
 
Step 8
 
Here, you can see the output.
 
 
Now, you will click on the Next button to switch the text.
 
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Android
 
Android