Reputation: 43863
I am making an android app, and I have a button which leads to a messaging place. On the activity with the button, I check if there is any unread messages, and if so I want to do something to the button to let the user know that there is something unread.
I was thinking of having the button sorta vibrate horizontally like 3 shakes every 2 or 3 seconds.
I know how to run a thread in the background which does something every x milliseconds. But what I don't know what to do is shake it horizontally 3 times.
Can anyone help with this?
I was thinking of using the sin function, for the animation, I can use output from a sin function to get values that go up and down, which I can set the horizontal position of the button... But this seems too extreme, is there a better way?
Upvotes: 30
Views: 120447
Reputation: 1
First create shake.xml
<?xml version="1.0" encoding="utf-8"?>
<rotate xmlns:android="http://schemas.android.com/apk/res/android"
android:duration="100"
android:fromDegrees="-5"
android:pivotX="50%"
android:pivotY="50%"
android:repeatCount="10"
android:repeatMode="reverse"
android:toDegrees="5" />
Class.java
Animation shake = AnimationUtils.loadAnimation(this, R.anim.shake);
view.startAnimation(shake);
Upvotes: 0
Reputation: 4641
In Kotlin, this way after XML:
Define a View:
val playDel = findViewById<ImageView>(R.id.player_del)
Find a Animation: Here from Android Lib
val imgAnim = AnimationUtils.loadAnimation(this, android.R.anim.fade_out)
Connect to the View
playDel.animation=imgAnim
Upvotes: 0
Reputation: 1
Add it in your root build.gradle at the end of repositories:
allprojects {
repositories {
...
maven { url "https://jitpack.io" }
}}
and then add dependency
dependencies {
compile 'com.github.varunest:sparkbutton:1.0.5'
}
<com.varunest.sparkbutton.SparkButton
android:id="@+id/spark_button"
android:layout_width="40dp"
android:layout_height="40dp"
app:sparkbutton_activeImage="@drawable/active_image"
app:sparkbutton_inActiveImage="@drawable/inactive_image"
app:sparkbutton_iconSize="40dp"
app:sparkbutton_primaryColor="@color/primary_color"
app:sparkbutton_secondaryColor="@color/secondary_color" />
SparkButton button = new SparkButtonBuilder(context)
.setActiveImage(R.drawable.active_image)
.setInActiveImage(R.drawable.inactive_image)
.setDisabledImage(R.drawable.disabled_image)
.setImageSizePx(getResources().getDimensionPixelOffset(R.dimen.button_size))
.setPrimaryColor(ContextCompat.getColor(context, R.color.primary_color))
.setSecondaryColor(ContextCompat.getColor(context, R.color.secondary_color))
.build();
Upvotes: 0
Reputation: 1120
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.layout_with_the_button);
final Animation myAnim = AnimationUtils.loadAnimation(this, R.anim.milkshake);
Button myButton = (Button) findViewById(R.id.new_game_btn);
myButton.setAnimation(myAnim);
}
For onClick of the Button
myButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
v.startAnimation(myAnim);
}
});
Create the anim folder in res directory
Right click on, res -> New -> Directory
Name the new Directory anim
create a new xml file name it milkshake
milkshake.xml
<?xml version="1.0" encoding="utf-8"?>
<rotate xmlns:android="http://schemas.android.com/apk/res/android"
android:duration="100"
android:fromDegrees="-5"
android:pivotX="50%"
android:pivotY="50%"
android:repeatCount="10"
android:repeatMode="reverse"
android:toDegrees="5" />
Upvotes: 6
Reputation: 1693
import android.view.View;
import android.view.animation.Animation;
import android.view.animation.Transformation;
public class HeightAnimation extends Animation {
protected final int originalHeight;
protected final View view;
protected float perValue;
public HeightAnimation(View view, int fromHeight, int toHeight) {
this.view = view;
this.originalHeight = fromHeight;
this.perValue = (toHeight - fromHeight);
}
@Override
protected void applyTransformation(float interpolatedTime, Transformation t) {
view.getLayoutParams().height = (int) (originalHeight + perValue * interpolatedTime);
view.requestLayout();
}
@Override
public boolean willChangeBounds() {
return true;
}
}
uss to:
HeightAnimation heightAnim = new HeightAnimation(view, view.getHeight(), viewPager.getHeight() - otherView.getHeight());
heightAnim.setDuration(1000);
view.startAnimation(heightAnim);
Upvotes: 0
Reputation: 1223
I can't comment on @omega's comment because I don't have enough reputation but the answer to that question should be something like:
shake.xml
<?xml version="1.0" encoding="utf-8"?>
<rotate xmlns:android="http://schemas.android.com/apk/res/android"
android:duration="100" <!-- how long the animation lasts -->
android:fromDegrees="-5" <!-- how far to swing left -->
android:pivotX="50%" <!-- pivot from horizontal center -->
android:pivotY="50%" <!-- pivot from vertical center -->
android:repeatCount="10" <!-- how many times to swing back and forth -->
android:repeatMode="reverse" <!-- to make the animation go the other way -->
android:toDegrees="5" /> <!-- how far to swing right -->
Class.java
Animation shake = AnimationUtils.loadAnimation(this, R.anim.shake);
view.startAnimation(shake);
This is just one way of doing what you want, there may be better methods out there.
Upvotes: 32
Reputation: 3576
create shake.xml in anim folder
<?xml version="1.0" encoding="utf-8"?>
<translate xmlns:android="http://schemas.android.com/apk/res/android"
android:fromXDelta="0"
android:toXDelta="10"
android:duration="1000"
android:interpolator="@anim/cycle" />
and cycle.xml in anim folder
<?xml version="1.0" encoding="utf-8"?>
<cycleInterpolator xmlns:android="http://schemas.android.com/apk/res/android"
android:cycles="4" />
now add animation on your code
Animation shake = AnimationUtils.loadAnimation(this, R.anim.shake);
anyview.startAnimation(shake);
If you want vertical animation, change fromXdelta and toXdelta value to fromYdelta and toYdelta value
Upvotes: 28