Skip to main content

Shake a view(edit text) on incorrect input at OTP,passwords,etc (Android)

By
Hello devs!

This is another short tutorial to show how to shake an Edit text view if the input is incorrect.
Note: The tutorial assumes that you have the basic knowledge about android development.



It involves the following steps:

1. Create the Edit text and cast it inside the onCreate.

EditText edittext=findViewById(R.id.edit_text);

Recommended:https://github.com/GoodieBag/Pinview

Optional- Put the edit text inside a dialog to take an input from the dialog.

2. Write an animation XML.
Here is an example: (shake.xml)
Courtesy:https://gist.github.com/simon-heinen/9795036
<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android">
<rotate
android:duration="70"
android:fromDegrees="-5"
android:pivotX="50%"
android:pivotY="50%"
android:repeatCount="5"
android:repeatMode="reverse"
android:interpolator="@android:anim/linear_interpolator"
android:toDegrees="5" />
<translate
android:fromXDelta="-10"
android:toXDelta="10"
android:repeatCount="5"
android:repeatMode="reverse"
android:interpolator="@android:anim/linear_interpolator"
android:duration="70" />
</set>

Store this inside the anim folder in res.

3.Write the onClick function for a button and inside that, whenever a condition is true, use the following lines:

Animation example= AnimationUtils.loadAnimation(context, R.anim.shake);
view.startAnimation(example);

In our case the condition would be something like,

if(edittext.getText().toString().equals("password"))
{
//action
}
else{
Animation example= AnimationUtils.loadAnimation(context, R.anim.shake);
edittext.startAnimation(example);
Toast.makeText(context,"Error",Toast.LENGTH_SHORT).show()
}


You can use different animations according to your need.
That's all folks! Hope it helps..


Comments

Post a Comment

Popular posts from this blog

Create drop-down menu with image icons in Android

By
Hello devs! In this tutorial, we will be creating a drop-down menu on clicking a button in Android studio. Here is an image of how our menu is going to look: On clicking the hamburger icon, a vertical menu will appear with image icons of your choice. Above image is just to get an idea of what we are going to develop. Let's get started. Step 1: Open the layout file where you want the menu. Add the hamburger icon on an image button. <ImageButton android :layout_width= "50dp" android :layout_height= "50dp" android :src= "@drawable/ham" android :id= "@+id/ham" android :background= "#00000000" />  Note : #00000000 specifies 'transparent' background. Step 2: Add a vertical linear layout for the menu. Inside that, add nested linear layouts for horizontal rows. <LinearLayout android :layout_width= "wrap_content" android :layout_height= "wrap_content...
Post a Comment
Read more

How to add buttons and its functionality dynamically using HTML,MySQL and PHP?

By
There are times when we wish to add button dynamically in a webpage based on the entries in the database. If that is true in your case, please read on. (This guide assumes you have the basic knowledge of HTML, PHP and MySQL.) Following are the steps one will need to apply to create buttons dynamically: 1. Use PHP to connect to the database. <?php  $db = mysqli_connect('localhost','root','','media') //root is the username and no password.  or die('Error connecting to MySQL server.'); ?> Here, 'media' is the database name and it is running on WAMP. 2. Use a while loop to fetch contents from the database.     For each entry add a Button.   <form method="POST">  <?php $query = "SELECT * FROM post"; mysqli_query($db, $query) or die('Error querying database.'); $result = mysqli_query($db, $query); while ($row = mysqli_fetch_array($result)) { $varid=$row['postID...
Post a Comment
Read more