MainActivity
package com.example.sampleproject;
import com.example.sampleproject.R;
import android.app.Activity;
import android.os.Bundle;
import android.widget.TextView;
public class MainActivity extends Activity {
public Shimmer shimmer;
@Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
ShimmerTextView myShimmerTextView=(ShimmerTextView)findViewById(R.id.shimmer_tv);
shimmer = new Shimmer();
shimmer.start(myShimmerTextView);
/*
*
* to stop
*
*
shimmer.cancel();*/
}
}
Shimmer class :
package com.example.sampleproject;
import android.animation.Animator;
import android.animation.ObjectAnimator;
import android.animation.ValueAnimator;
import android.os.Build;
import android.view.View;
/**
* Shimmer
* User: romainpiel
* Date: 06/03/2014
* Time: 15:42
*/
public class Shimmer {
public static final int ANIMATION_DIRECTION_LTR = 0;
public static final int ANIMATION_DIRECTION_RTL = 1;
private static final int DEFAULT_REPEAT_COUNT = ValueAnimator.INFINITE;
private static final long DEFAULT_DURATION = 1000;
private static final long DEFAULT_START_DELAY = 0;
private static final int DEFAULT_DIRECTION = ANIMATION_DIRECTION_LTR;
private int repeatCount;
private long duration;
private long startDelay;
private int direction;
private Animator.AnimatorListener animatorListener;
private ObjectAnimator animator;
public Shimmer() {
repeatCount = DEFAULT_REPEAT_COUNT;
duration = DEFAULT_DURATION;
startDelay = DEFAULT_START_DELAY;
direction = DEFAULT_DIRECTION;
}
public int getRepeatCount() {
return repeatCount;
}
public Shimmer setRepeatCount(int repeatCount) {
this.repeatCount = repeatCount;
return this;
}
public long getDuration() {
return duration;
}
public Shimmer setDuration(long duration) {
this.duration = duration;
return this;
}
public long getStartDelay() {
return startDelay;
}
public Shimmer setStartDelay(long startDelay) {
this.startDelay = startDelay;
return this;
}
public int getDirection() {
return direction;
}
public Shimmer setDirection(int direction) {
if (direction != ANIMATION_DIRECTION_LTR && direction != ANIMATION_DIRECTION_RTL) {
throw new IllegalArgumentException("The animation direction must be either ANIMATION_DIRECTION_LTR or ANIMATION_DIRECTION_RTL");
}
this.direction = direction;
return this;
}
public Animator.AnimatorListener getAnimatorListener() {
return animatorListener;
}
public Shimmer setAnimatorListener(Animator.AnimatorListener animatorListener) {
this.animatorListener = animatorListener;
return this;
}
public <V extends View & ShimmerViewBase> void start(final V shimmerView) {
if (isAnimating()) {
return;
}
final Runnable animate = new Runnable() {
@Override
public void run() {
shimmerView.setShimmering(true);
float fromX = 0;
float toX = shimmerView.getWidth();
if (direction == ANIMATION_DIRECTION_RTL) {
fromX = shimmerView.getWidth();
toX = 0;
}
animator = ObjectAnimator.ofFloat(shimmerView, "gradientX", fromX, toX);
animator.setRepeatCount(repeatCount);
animator.setDuration(duration);
animator.setStartDelay(startDelay);
animator.addListener(new Animator.AnimatorListener() {
@Override
public void onAnimationStart(Animator animation) {
}
@Override
public void onAnimationEnd(Animator animation) {
shimmerView.setShimmering(false);
if (Build.VERSION.SDK_INT < Build.VERSION_CODES.JELLY_BEAN) {
shimmerView.postInvalidate();
} else {
shimmerView.postInvalidateOnAnimation();
}
animator = null;
}
@Override
public void onAnimationCancel(Animator animation) {
}
@Override
public void onAnimationRepeat(Animator animation) {
}
});
if (animatorListener != null) {
animator.addListener(animatorListener);
}
animator.start();
}
};
if (!shimmerView.isSetUp()) {
shimmerView.setAnimationSetupCallback(new ShimmerViewHelper.AnimationSetupCallback() {
@Override
public void onSetupAnimation(final View target) {
animate.run();
}
});
} else {
animate.run();
}
}
public void cancel() {
if (animator != null) {
animator.cancel();
}
}
public boolean isAnimating() {
return animator != null && animator.isRunning();
}
}
ShimmerTextView class:
package com.example.sampleproject;import android.content.Context;
import android.content.res.ColorStateList;
import android.graphics.Canvas;
import android.util.AttributeSet;
import android.widget.TextView;
/**
* Shimmer
* User: romainpiel
* Date: 06/03/2014
* Time: 10:19
*
* Shimmering TextView
* Dumb class wrapping a ShimmerViewHelper
*/
public class ShimmerTextView extends TextView implements ShimmerViewBase {
private ShimmerViewHelper shimmerViewHelper;
public ShimmerTextView(Context context) {
super(context);
shimmerViewHelper = new ShimmerViewHelper(this, getPaint(), null);
shimmerViewHelper.setPrimaryColor(getCurrentTextColor());
}
public ShimmerTextView(Context context, AttributeSet attrs) {
super(context, attrs);
shimmerViewHelper = new ShimmerViewHelper(this, getPaint(), attrs);
shimmerViewHelper.setPrimaryColor(getCurrentTextColor());
}
public ShimmerTextView(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
shimmerViewHelper = new ShimmerViewHelper(this, getPaint(), attrs);
shimmerViewHelper.setPrimaryColor(getCurrentTextColor());
}
@Override
public float getGradientX() {
return shimmerViewHelper.getGradientX();
}
@Override
public void setGradientX(float gradientX) {
shimmerViewHelper.setGradientX(gradientX);
}
@Override
public boolean isShimmering() {
return shimmerViewHelper.isShimmering();
}
@Override
public void setShimmering(boolean isShimmering) {
shimmerViewHelper.setShimmering(isShimmering);
}
@Override
public boolean isSetUp() {
return shimmerViewHelper.isSetUp();
}
@Override
public void setAnimationSetupCallback(ShimmerViewHelper.AnimationSetupCallback callback) {
shimmerViewHelper.setAnimationSetupCallback(callback);
}
@Override
public int getPrimaryColor() {
return shimmerViewHelper.getPrimaryColor();
}
@Override
public void setPrimaryColor(int primaryColor) {
shimmerViewHelper.setPrimaryColor(primaryColor);
}
@Override
public int getReflectionColor() {
return shimmerViewHelper.getReflectionColor();
}
@Override
public void setReflectionColor(int reflectionColor) {
shimmerViewHelper.setReflectionColor(reflectionColor);
}
@Override
public void setTextColor(int color) {
super.setTextColor(color);
if (shimmerViewHelper != null) {
shimmerViewHelper.setPrimaryColor(getCurrentTextColor());
}
}
@Override
public void setTextColor(ColorStateList colors) {
super.setTextColor(colors);
if (shimmerViewHelper != null) {
shimmerViewHelper.setPrimaryColor(getCurrentTextColor());
}
}
@Override
protected void onSizeChanged(int w, int h, int oldw, int oldh) {
super.onSizeChanged(w, h, oldw, oldh);
if (shimmerViewHelper != null) {
shimmerViewHelper.onSizeChanged();
}
}
@Override
public void onDraw(Canvas canvas) {
if (shimmerViewHelper != null) {
shimmerViewHelper.onDraw();
}
super.onDraw(canvas);
}
}
Just Add ShimmerViewBase && ShimmerViewHelper class from below link .
activity_main.xml:--
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:background="@android:color/black"
android:layout_height="match_parent" >
<com.example.sampleproject.ShimmerTextView
android:id="@+id/shimmer_tv"
android:text="Shimmer"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerInParent="true"
android:textColor="#444"
android:textSize="50sp"/>
</RelativeLayout>
values/attrs.xml:
<?xml version="1.0" encoding="utf-8"?>
<resources>
<declare-styleable name="ShimmerView">
<attr name="reflectionColor" format="color"/>
</declare-styleable>
</resources>
refer Link :-- Shimmer-android-studio
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