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Modfied demo to show setting animations to null

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Originally, setting LayoutTransition animators to null just restored the default animation behavior, It seems more sensible to have null actually disable the animation. I made that change to the framework and modified this demo to show how it's done. Along the way, I refactored the code a bit and fixed some minor bugs.

Change-Id: Icfb53ada234b635294c5faa68a15932f25859fb8
This commit is contained in:
Chet Haase
2010-10-04 16:48:56 -07:00
parent 2a06483139
commit 7da3f9f51e
2 changed files with 112 additions and 33 deletions
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34
samples/ApiDemos/res/layout/layout_animations.xml
View File

@@ -37,4 +37,38 @@
android:id="@+id/customAnimCB"
/>
</LinearLayout>
<LinearLayout
android:orientation="horizontal"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
>
<CheckBox
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:checked="true"
android:text="Appearing Animation"
android:id="@+id/appearingCB"
/>
<CheckBox
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:checked="true"
android:text="Disappearing Animation"
android:id="@+id/disappearingCB"
/>
<CheckBox
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:checked="true"
android:text="Changing/Appearing Animation"
android:id="@+id/changingAppearingCB"
/>
<CheckBox
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:checked="true"
android:text="Changing/Disappearing Animation"
android:id="@+id/changingDisappearingCB"
/>
</LinearLayout>
</LinearLayout>

111
samples/ApiDemos/src/com/example/android/apis/animation/LayoutAnimations.java
View File

@@ -20,6 +20,7 @@ package com.example.android.apis.animation;
// class is in a sub-package.
import android.animation.Animator;
import android.animation.ObjectAnimator;
import android.widget.LinearLayout;
import com.example.android.apis.R;
import android.animation.AnimatorListenerAdapter;
@@ -43,6 +44,12 @@ public class LayoutAnimations extends Activity {
private int numButtons = 1;
ViewGroup container = null;
Animator defaultAppearingAnim, defaultDisappearingAnim;
Animator defaultChangingAppearingAnim, defaultChangingDisappearingAnim;
Animator customAppearingAnim, customDisappearingAnim;
Animator customChangingAppearingAnim, customChangingDisappearingAnim;
Animator currentAppearingAnim, currentDisappearingAnim;
Animator currentChangingAppearingAnim, currentChangingDisappearingAnim;
/** Called when the activity is first created. */
@Override
@@ -50,19 +57,31 @@ public class LayoutAnimations extends Activity {
super.onCreate(savedInstanceState);
setContentView(R.layout.layout_animations);
container = new FixedGridLayout(this.getApplicationContext());
container = new FixedGridLayout(this);
((FixedGridLayout)container).setCellHeight(50);
((FixedGridLayout)container).setCellWidth(100);
((FixedGridLayout)container).setCellWidth(200);
final LayoutTransition transitioner = new LayoutTransition();
container.setLayoutTransition(transitioner);
defaultAppearingAnim = transitioner.getAnimator(LayoutTransition.APPEARING);
defaultDisappearingAnim =
transitioner.getAnimator(LayoutTransition.DISAPPEARING);
defaultChangingAppearingAnim =
transitioner.getAnimator(LayoutTransition.CHANGE_APPEARING);
defaultChangingDisappearingAnim =
transitioner.getAnimator(LayoutTransition.CHANGE_DISAPPEARING);
createCustomAnimations(transitioner);
currentAppearingAnim = defaultAppearingAnim;
currentDisappearingAnim = defaultDisappearingAnim;
currentChangingAppearingAnim = defaultChangingAppearingAnim;
currentChangingDisappearingAnim = defaultChangingDisappearingAnim;
ViewGroup parent = (ViewGroup) findViewById(R.id.parent);
parent.addView(container);
Button addButton = (Button) findViewById(R.id.addNewButton);
addButton.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
Button newButton = new Button(getApplicationContext());
newButton.setText("Click To Remove " + (numButtons++));
Button newButton = new Button(LayoutAnimations.this);
newButton.setText("Click to Delete " + (numButtons++));
newButton.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
container.removeView(v);
@@ -75,27 +94,57 @@ public class LayoutAnimations extends Activity {
CheckBox customAnimCB = (CheckBox) findViewById(R.id.customAnimCB);
customAnimCB.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
long duration;
if (isChecked) {
transitioner.setStagger(LayoutTransition.CHANGE_APPEARING, 30);
transitioner.setStagger(LayoutTransition.CHANGE_DISAPPEARING, 30);
setupAnimations(transitioner);
duration = 500;
} else {
transitioner.setStagger(LayoutTransition.CHANGE_APPEARING, 0);
transitioner.setStagger(LayoutTransition.CHANGE_DISAPPEARING, 0);
transitioner.setAnimator(LayoutTransition.APPEARING, null);
transitioner.setAnimator(LayoutTransition.DISAPPEARING, null);
transitioner.setAnimator(LayoutTransition.CHANGE_APPEARING, null);
transitioner.setAnimator(LayoutTransition.CHANGE_DISAPPEARING, null);
duration = 300;
}
transitioner.setDuration(duration);
setupTransition(transitioner);
}
});
// Check for disabled animations
CheckBox appearingCB = (CheckBox) findViewById(R.id.appearingCB);
appearingCB.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
setupTransition(transitioner);
}
});
CheckBox disappearingCB = (CheckBox) findViewById(R.id.disappearingCB);
disappearingCB.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
setupTransition(transitioner);
}
});
CheckBox changingAppearingCB = (CheckBox) findViewById(R.id.changingAppearingCB);
changingAppearingCB.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
setupTransition(transitioner);
}
});
CheckBox changingDisappearingCB = (CheckBox) findViewById(R.id.changingDisappearingCB);
changingDisappearingCB.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
setupTransition(transitioner);
}
});
}
private void setupAnimations(LayoutTransition transition) {
private void setupTransition(LayoutTransition transition) {
CheckBox customAnimCB = (CheckBox) findViewById(R.id.customAnimCB);
CheckBox appearingCB = (CheckBox) findViewById(R.id.appearingCB);
CheckBox disappearingCB = (CheckBox) findViewById(R.id.disappearingCB);
CheckBox changingAppearingCB = (CheckBox) findViewById(R.id.changingAppearingCB);
CheckBox changingDisappearingCB = (CheckBox) findViewById(R.id.changingDisappearingCB);
transition.setAnimator(LayoutTransition.APPEARING, appearingCB.isChecked() ?
(customAnimCB.isChecked() ? customAppearingAnim : defaultAppearingAnim) : null);
transition.setAnimator(LayoutTransition.DISAPPEARING, disappearingCB.isChecked() ?
(customAnimCB.isChecked() ? customDisappearingAnim : defaultDisappearingAnim) : null);
transition.setAnimator(LayoutTransition.CHANGE_APPEARING, changingAppearingCB.isChecked() ?
(customAnimCB.isChecked() ? customChangingAppearingAnim :
defaultChangingAppearingAnim) : null);
transition.setAnimator(LayoutTransition.CHANGE_DISAPPEARING,
changingDisappearingCB.isChecked() ?
(customAnimCB.isChecked() ? customChangingDisappearingAnim :
defaultChangingDisappearingAnim) : null);
}
private void createCustomAnimations(LayoutTransition transition) {
// Changing while Adding
PropertyValuesHolder<Integer> pvhLeft =
new PropertyValuesHolder<Integer>("left", 0, 1);
@@ -109,11 +158,10 @@ public class LayoutAnimations extends Activity {
new PropertyValuesHolder<Float>("scaleX", 1f, 0f, 1f);
PropertyValuesHolder<Float> pvhScaleY =
new PropertyValuesHolder<Float>("scaleY", 1f, 0f, 1f);
final ObjectAnimator changeIn =
customChangingAppearingAnim =
new ObjectAnimator(transition.getDuration(LayoutTransition.CHANGE_APPEARING),
this, pvhLeft, pvhTop, pvhRight, pvhBottom, pvhScaleX, pvhScaleY);
transition.setAnimator(LayoutTransition.CHANGE_APPEARING, changeIn);
changeIn.addListener(new AnimatorListenerAdapter() {
customChangingAppearingAnim.addListener(new AnimatorListenerAdapter() {
public void onAnimationEnd(Animator anim) {
View view = (View) ((ObjectAnimator) anim).getTarget();
view.setScaleX(1f);
@@ -127,11 +175,10 @@ public class LayoutAnimations extends Activity {
Keyframe kf2 = new Keyframe(1f, 0f);
PropertyValuesHolder<Keyframe> pvhRotation =
new PropertyValuesHolder<Keyframe>("rotation", kf0, kf1, kf2);
final ObjectAnimator changeOut =
customChangingDisappearingAnim =
new ObjectAnimator(transition.getDuration(LayoutTransition.CHANGE_DISAPPEARING),
this, pvhLeft, pvhTop, pvhRight, pvhBottom, pvhRotation);
transition.setAnimator(LayoutTransition.CHANGE_DISAPPEARING, changeOut);
changeOut.addListener(new AnimatorListenerAdapter() {
customChangingDisappearingAnim.addListener(new AnimatorListenerAdapter() {
public void onAnimationEnd(Animator anim) {
View view = (View) ((ObjectAnimator) anim).getTarget();
view.setRotation(0f);
@@ -139,11 +186,10 @@ public class LayoutAnimations extends Activity {
});
// Adding
ObjectAnimator<Float> animIn =
customAppearingAnim =
new ObjectAnimator<Float>(transition.getDuration(LayoutTransition.APPEARING),
null, "rotationY", 90f, 0f);
transition.setAnimator(LayoutTransition.APPEARING, animIn);
animIn.addListener(new AnimatorListenerAdapter() {
customAppearingAnim.addListener(new AnimatorListenerAdapter() {
public void onAnimationEnd(Animator anim) {
View view = (View) ((ObjectAnimator) anim).getTarget();
view.setRotationY(0f);
@@ -151,11 +197,10 @@ public class LayoutAnimations extends Activity {
});
// Removing
ObjectAnimator<Float> animOut =
customDisappearingAnim =
new ObjectAnimator<Float>(transition.getDuration(LayoutTransition.DISAPPEARING),
null, "rotationX", 0f, 90f);
transition.setAnimator(LayoutTransition.DISAPPEARING, animOut);
animIn.addListener(new AnimatorListenerAdapter() {
customDisappearingAnim.addListener(new AnimatorListenerAdapter() {
public void onAnimationEnd(Animator anim) {
View view = (View) ((ObjectAnimator) anim).getTarget();
view.setRotationX(0f);