This example explains how we can create transition effect to animate our photo gallery or screen.
Algorithm:
1.) Create a new project by File-> New -> Android Project name it TransitionAnimationExample.
2.) Write following into main.xml:
2.) Write following into main.xml:
<?xml version="1.0" encoding="utf-8"?>
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/container"
android:layout_width="fill_parent"
android:layout_height="fill_parent">
<ListView
android:id="@android:id/list"
android:persistentDrawingCache="animation|scrolling"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layoutAnimation="@anim/layout_bottom_to_top_slide" />
<ImageView
android:id="@+id/picture"
android:scaleType="fitCenter"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:visibility="gone" />
</FrameLayout>
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/container"
android:layout_width="fill_parent"
android:layout_height="fill_parent">
<ListView
android:id="@android:id/list"
android:persistentDrawingCache="animation|scrolling"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layoutAnimation="@anim/layout_bottom_to_top_slide" />
<ImageView
android:id="@+id/picture"
android:scaleType="fitCenter"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:visibility="gone" />
</FrameLayout>
3.) Create res/anim folder and add following files into it: layout_bottom_to_top_slide.xml
<?xml version="1.0" encoding="utf-8"?>
<layoutAnimation xmlns:android="http://schemas.android.com/apk/res/android"
android:delay="30%"
android:animationOrder="reverse"
android:animation="@anim/slide_right" />
<layoutAnimation xmlns:android="http://schemas.android.com/apk/res/android"
android:delay="30%"
android:animationOrder="reverse"
android:animation="@anim/slide_right" />
slide_right.xml
<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android"android:interpolator="@android:anim/accelerate_interpolator">
<translate android:fromXDelta="-100%p" android:toXDelta="0"
android:duration="@android:integer/config_shortAnimTime" />
</set>
<set xmlns:android="http://schemas.android.com/apk/res/android"android:interpolator="@android:anim/accelerate_interpolator">
<translate android:fromXDelta="-100%p" android:toXDelta="0"
android:duration="@android:integer/config_shortAnimTime" />
</set>
4.) Create Rotate3dAnimation.java in src folder and write following code:
package com.example.TransitionAnimation;
import android.view.animation.Animation;
import android.view.animation.Transformation;
import android.graphics.Camera;
import android.graphics.Matrix;
import android.view.animation.Transformation;
import android.graphics.Camera;
import android.graphics.Matrix;
public class Rotate3dAnimation extends Animation {
private final float mFromDegrees;
private final float mToDegrees;
private final float mCenterX;
private final float mCenterY;
private final float mDepthZ;
private final boolean mReverse;
private Camera mCamera;
private final float mFromDegrees;
private final float mToDegrees;
private final float mCenterX;
private final float mCenterY;
private final float mDepthZ;
private final boolean mReverse;
private Camera mCamera;
public Rotate3dAnimation(float fromDegrees, float toDegrees,
float centerX, float centerY, float depthZ, boolean reverse) {
mFromDegrees = fromDegrees;
mToDegrees = toDegrees;
mCenterX = centerX;
mCenterY = centerY;
mDepthZ = depthZ;
mReverse = reverse;
}
float centerX, float centerY, float depthZ, boolean reverse) {
mFromDegrees = fromDegrees;
mToDegrees = toDegrees;
mCenterX = centerX;
mCenterY = centerY;
mDepthZ = depthZ;
mReverse = reverse;
}
@Override
public void initialize(int width, int height, int parentWidth, intparentHeight) {
super.initialize(width, height, parentWidth, parentHeight);
mCamera = new Camera();
}
public void initialize(int width, int height, int parentWidth, intparentHeight) {
super.initialize(width, height, parentWidth, parentHeight);
mCamera = new Camera();
}
@Override
protected void applyTransformation(float interpolatedTime, Transformation t){
final float fromDegrees = mFromDegrees;
float degrees = fromDegrees + ((mToDegrees - fromDegrees) *interpolatedTime);
protected void applyTransformation(float interpolatedTime, Transformation t){
final float fromDegrees = mFromDegrees;
float degrees = fromDegrees + ((mToDegrees - fromDegrees) *interpolatedTime);
final float centerX = mCenterX;
final float centerY = mCenterY;
final Camera camera = mCamera;
final float centerY = mCenterY;
final Camera camera = mCamera;
final Matrix matrix = t.getMatrix();
camera.save();
if (mReverse) {
camera.translate(0.0f, 0.0f, mDepthZ * interpolatedTime);
} else {
camera.translate(0.0f, 0.0f, mDepthZ * (1.0f - interpolatedTime));
}
camera.rotateY(degrees);
camera.getMatrix(matrix);
camera.restore();
if (mReverse) {
camera.translate(0.0f, 0.0f, mDepthZ * interpolatedTime);
} else {
camera.translate(0.0f, 0.0f, mDepthZ * (1.0f - interpolatedTime));
}
camera.rotateY(degrees);
camera.getMatrix(matrix);
camera.restore();
matrix.preTranslate(-centerX, -centerY);
matrix.postTranslate(centerX, centerY);
}
}
matrix.postTranslate(centerX, centerY);
}
}
5.) Add 2 png images in drawable folder.
6.) Run for output.
6.) Run for output.
Steps:
1.) Create a project named TransitionAnimationExample and set the information as stated in the image.
Build Target: Android 2.1
Application Name: TransitionAnimationExample
Package Name: com.example. TransitionAnimation
Activity Name: TransitionAnimationActivity
Min SDK Version: 7
Application Name: TransitionAnimationExample
Package Name: com.example. TransitionAnimation
Activity Name: TransitionAnimationActivity
Min SDK Version: 7
2.) Open TransitionAnimationActivity.java file and write following code there:
package com.example.TransitionAnimation;
import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.view.ViewGroup;
import android.view.animation.AccelerateInterpolator;
import android.view.animation.Animation;
import android.view.animation.DecelerateInterpolator;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.ImageView;
import android.widget.ListView;
import android.os.Bundle;
import android.view.View;
import android.view.ViewGroup;
import android.view.animation.AccelerateInterpolator;
import android.view.animation.Animation;
import android.view.animation.DecelerateInterpolator;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.ImageView;
import android.widget.ListView;
public class TransitionAnimationActivity extends Activity implements
AdapterView.OnItemClickListener, View.OnClickListener {
private ListView mPhotosList;
private ViewGroup mContainer;
private ImageView mImageView;
AdapterView.OnItemClickListener, View.OnClickListener {
private ListView mPhotosList;
private ViewGroup mContainer;
private ImageView mImageView;
private static final String[] PHOTOS_NAMES = new String[] {
"Photo1",
"Photo2",
};
private static final int[] PHOTOS_RESOURCES = new int[] {
R.drawable.thumb,
R.drawable.icon,
};
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
mPhotosList = (ListView) findViewById(android.R.id.list);
mImageView = (ImageView) findViewById(R.id.picture);
mContainer = (ViewGroup) findViewById(R.id.container);
final ArrayAdapter<String> adapter = new ArrayAdapter<String>(this,
android.R.layout.simple_list_item_1, PHOTOS_NAMES);
mPhotosList.setAdapter(adapter);
mPhotosList.setOnItemClickListener(this);
mImageView.setClickable(true);
mImageView.setFocusable(true);
mImageView.setOnClickListener(this);
mContainer.setPersistentDrawingCache(ViewGroup.PERSISTENT_ANIMATION_CACHE);
}
private void applyRotation(int position, float start, float end) {
// Find the center of the container
final float centerX = mContainer.getWidth() / 2.0f;
final float centerY = mContainer.getHeight() / 2.0f;
final Rotate3dAnimation rotation =
new Rotate3dAnimation(start, end, centerX, centerY, 310.0f, true);
rotation.setDuration(500);
rotation.setFillAfter(true);
rotation.setInterpolator(new AccelerateInterpolator());
rotation.setAnimationListener(new DisplayNextView(position));
mContainer.startAnimation(rotation);
}
public void onItemClick(AdapterView parent, View v, int position, long id) {
mImageView.setImageResource(PHOTOS_RESOURCES[position]);
applyRotation(position, 0, 90);
}
public void onClick(View v) {
applyRotation(-1, 180, 90);
}
private final class DisplayNextView implements Animation.AnimationListener {
private final int mPosition;
private DisplayNextView(int position) {
mPosition = position;
}
public void onAnimationStart(Animation animation) {
}
public void onAnimationEnd(Animation animation) {
mContainer.post(new SwapViews(mPosition));
}
public void onAnimationRepeat(Animation animation) {
}
}
private final class SwapViews implements Runnable {
private final int mPosition;
public SwapViews(int position) {
mPosition = position;
}
public void run() {
final float centerX = mContainer.getWidth() / 2.0f;
final float centerY = mContainer.getHeight() / 2.0f;
Rotate3dAnimation rotation;
if (mPosition > -1) {
mPhotosList.setVisibility(View.GONE);
mImageView.setVisibility(View.VISIBLE);
mImageView.requestFocus();
rotation = new Rotate3dAnimation(90, 180, centerX, centerY, 310.0f, false);
} else {
mImageView.setVisibility(View.GONE);
mPhotosList.setVisibility(View.VISIBLE);
mPhotosList.requestFocus();
rotation = new Rotate3dAnimation(90, 0, centerX, centerY, 310.0f,false);
}
rotation.setDuration(500);
rotation.setFillAfter(true);
rotation.setInterpolator(new DecelerateInterpolator());
mContainer.startAnimation(rotation);
}
}
}
"Photo1",
"Photo2",
};
private static final int[] PHOTOS_RESOURCES = new int[] {
R.drawable.thumb,
R.drawable.icon,
};
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
mPhotosList = (ListView) findViewById(android.R.id.list);
mImageView = (ImageView) findViewById(R.id.picture);
mContainer = (ViewGroup) findViewById(R.id.container);
final ArrayAdapter<String> adapter = new ArrayAdapter<String>(this,
android.R.layout.simple_list_item_1, PHOTOS_NAMES);
mPhotosList.setAdapter(adapter);
mPhotosList.setOnItemClickListener(this);
mImageView.setClickable(true);
mImageView.setFocusable(true);
mImageView.setOnClickListener(this);
mContainer.setPersistentDrawingCache(ViewGroup.PERSISTENT_ANIMATION_CACHE);
}
private void applyRotation(int position, float start, float end) {
// Find the center of the container
final float centerX = mContainer.getWidth() / 2.0f;
final float centerY = mContainer.getHeight() / 2.0f;
final Rotate3dAnimation rotation =
new Rotate3dAnimation(start, end, centerX, centerY, 310.0f, true);
rotation.setDuration(500);
rotation.setFillAfter(true);
rotation.setInterpolator(new AccelerateInterpolator());
rotation.setAnimationListener(new DisplayNextView(position));
mContainer.startAnimation(rotation);
}
public void onItemClick(AdapterView parent, View v, int position, long id) {
mImageView.setImageResource(PHOTOS_RESOURCES[position]);
applyRotation(position, 0, 90);
}
public void onClick(View v) {
applyRotation(-1, 180, 90);
}
private final class DisplayNextView implements Animation.AnimationListener {
private final int mPosition;
private DisplayNextView(int position) {
mPosition = position;
}
public void onAnimationStart(Animation animation) {
}
public void onAnimationEnd(Animation animation) {
mContainer.post(new SwapViews(mPosition));
}
public void onAnimationRepeat(Animation animation) {
}
}
private final class SwapViews implements Runnable {
private final int mPosition;
public SwapViews(int position) {
mPosition = position;
}
public void run() {
final float centerX = mContainer.getWidth() / 2.0f;
final float centerY = mContainer.getHeight() / 2.0f;
Rotate3dAnimation rotation;
if (mPosition > -1) {
mPhotosList.setVisibility(View.GONE);
mImageView.setVisibility(View.VISIBLE);
mImageView.requestFocus();
rotation = new Rotate3dAnimation(90, 180, centerX, centerY, 310.0f, false);
} else {
mImageView.setVisibility(View.GONE);
mPhotosList.setVisibility(View.VISIBLE);
mPhotosList.requestFocus();
rotation = new Rotate3dAnimation(90, 0, centerX, centerY, 310.0f,false);
}
rotation.setDuration(500);
rotation.setFillAfter(true);
rotation.setInterpolator(new DecelerateInterpolator());
mContainer.startAnimation(rotation);
}
}
}
3.) Compile and build the project.
Output
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