1.AnimationSet是Animation的子類;java
2.一個AnimationSet包含了一系列的Animation;android
3.針對AnimationSet設置一些Animation的常見屬性(如startOffset,duration等),能夠被包含在AnimationSet當中的Animation集成;app
例:一個AnimationSet中有兩個Animation,效果疊加框架
第一種方法:dom
doubleani.xmlide
<?xml version="1.0" encoding="utf-8"?>佈局
<set xmlns:android="http://schemas.android.com/apk/res/android"測試
android:interpolator="@android :anim/accelerate_interpolator"動畫
android:shareInterpolator="true">this
<!-- fromAlpha和toAlpha是起始透明度和結束時透明度 -->
<alpha
android:fromAlpha="1.0"
android:toAlpha="0.0"
android:startOffset="500"
android:duration="500"/>
<translate
android:fromXDelta="0%"
android:toXDelta="100%"
android:fromYDelta="0%"
android:toYDelta="100%"
android:duration="2000"/>
</set>
.java文件中
classDoubleButtonListener implements OnClickListener {
public void onClick(View v) {
// 使用AnimationUtils裝載動畫配置文件
Animation animation = AnimationUtils.loadAnimation(
Animation2Activity.this, R.anim. doubleani);
// 啓動動畫
image.startAnimation(animation);
}
}
第二種方法:
.java文件中
classDoubleButtonListener implements OnClickListener {
public void onClick(View v) {
AnimationSet animationSet = new AnimationSet(true);
AlphaAnimation alphaAnimation = new AlphaAnimation(1, 0);
RotateAnimation rotateAnimation = new RotateAnimation(0, 360,
Animation.RELATIVE_TO_SELF,0.5f,
Animation.RELATIVE_TO_SELF,0.5f);
rotateAnimation.setDuration(1000);
animationSet.addAnimation(rotateAnimation);
animationSet.addAnimation(alphaAnimation);
image.startAnimation(animationSet);
}
}
Interpolator的具體使用方法
Interpolator定義了動畫變化的速率,在Animations框架當中定義了一下幾種Interpolator
? AccelerateDecelerateInterpolator:在動畫開始與結束的地方速率改變比較慢,在中間的時候速率快。
? AccelerateInterpolator:在動畫開始的地方速率改變比較慢,而後開始加速
? CycleInterpolator:動畫循環播放特定的次數,速率改變沿着正弦曲線
? DecelerateInterpolator:在動畫開始的地方速率改變比較慢,而後開始減速
? LinearInterpolator:動畫以均勻的速率改變
分爲如下幾種狀況:
1、在set標籤中
<set xmlns:android="http://schemas.android.com/apk/res/android"
android:interpolator="@android :anim/accelerate_interpolator"/>
2、若是在一個set標籤中包含多個動畫效果,若是想讓這些動畫效果共享一個Interpolator。
android:shareInterpolator="true"
3、若是不想共享一個interpolator,則設置android:shareInterpolator="true",而且須要在每個動畫效果處添加interpolator。
<alpha
android:interpolator="@android :anim/accelerate_decelerate_interpolator"
android:fromAlpha="1.0"
android:toAlpha="0.0"
android:startOffset="500"
android:duration="500"/>
4、若是是在代碼上設置共享一個interpolator,則能夠在AnimationSet設置interpolator。
AnimationSet animationSet = newAnimationSet(true);
animationSet.setInterpolator(new AccelerateInterpolator());
5、如果不設置共享一個interpolator則能夠在每個Animation對象上面設置interpolator。
AnimationSet animationSet = newAnimationSet(false);
alphaAnimation.setInterpolator(new AccelerateInterpolator());
rotateAnimation.setInterpolator(new DecelerateInterpolator());
Frame-By-Frame Animations的使用方法
Frame-By-Frame Animations是一幀一幀的格式顯示動畫效果。相似於電影膠片拍攝的手法。
main.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent">
<LinearLayout
android:orientation="horizontal"
android:layout_height="wrap_content"
android:layout_width="wrap_content">
<Button
android:id="@+id/button"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="運動"/>
</LinearLayout>
<LinearLayout
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent">
<ImageView
android:id="@+id/image"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerInParent="true"/>
</LinearLayout>
</LinearLayout>
三、anim.xml
<?xml version="1.0" encoding="utf-8"?>
<animation-list xmlns:android="http://schemas.android.com/apk/res/android"
android:oneshot="false">
<item android:drawable="@drawable/a_01" android:duration="50"/>
<item android:drawable="@drawable/a_02" android:duration="50"/>
<item android:drawable="@drawable/a_03" android:duration="50"/>
<item android:drawable="@drawable/a_04" android:duration="50"/>
<item android:drawable="@drawable/a_05" android:duration="50"/>
<item android:drawable="@drawable/a_06" android:duration="50"/>
</animation-list>
4、.java文件
importandroid.app.Activity;
importandroid.graphics.drawable.AnimationDrawable;
importandroid.os.Bundle;
importandroid.view.View;
importandroid.view.View.OnClickListener;
importandroid.widget.Button;
importandroid.widget.ImageView;
public class AnimationsActivity extends Activity {
private Button button = null;
private ImageView imageView = null;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
button = (Button)findViewById(R.id.button);
imageView = (ImageView)findViewById(R.id.image);
button.setOnClickListener(newButtonListener());
}
class ButtonListener implementsOnClickListener{
public void onClick(View v) {
imageView.setBackgroundResource(R.anim.anim);
AnimationDrawable animationDrawable = (AnimationDrawable)
imageView.getBackground();
animationDrawable.start();
}
}
}
LayoutAnimationsController
1、什麼是LayoutAnimationsController
LayoutAnimationsController能夠用於實現使多個控件按順序一個一個的顯示。
1)LayoutAnimationsController用於爲一個layout裏面的控件,或者是一個ViewGroup裏面的控件設置統一的動畫效果。
2)每個控件都有相同的動畫效果。
3)控件的動畫效果能夠在不一樣的時間顯示出來。
4)LayoutAnimationsController能夠在xml文件當中設置,以能夠在代碼當中進行設置。
2、在xml當中使用LayoutAnimationController
1)在res/anim文件夾下建立一個名爲list_anim_layout.xml文件:
android:delay - 動畫間隔時間;子類動畫時間間隔 (延遲) 70% 也能夠是一個浮點數 如「1.2」等
android:animationOrder - 動畫執行的循序(normal:順序,random:隨機,reverse:反向顯示)
android:animation – 引用動畫效果文件
<layoutAnimation
xmlns:android="http://schemas.android.com/apk/res/android"
android:delay="0.5"
android:animationOrder="normal"
android:animation="@anim/list_anim"/>
2)建立list_anim.xml文件,設置動畫效果
<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android"
android:interpolator="@android:anim/accelerate_interpolator"
android:shareInterpolator="true">
<alpha
android:fromAlpha="0.0"
android:toAlpha="1.0"
android:duration="1000"/>
</set>
3)在佈局文件main.xml當中爲ListVIew添加以下配置
<ListView
android:id="@id/android:list"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:scrollbars="vertical"
android:layoutAnimation="@anim/list_anim_layout"/>
4)程序結構
5)list_anim_layout.xml
<layoutAnimation
xmlns:android="http://schemas.android.com/apk/res/android"
android:delay="0.5"
android:animationOrder="normal"
android:animation="@anim/list_anim"/>
6)list_anim.xml
<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android"
android:interpolator="@android:anim/accelerate_interpolator"
android:shareInterpolator="true">
<alpha
android:fromAlpha="0.0"
android:toAlpha="1.0"
android:duration="1000"/>
</set>
7)main.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
>
<ListView
android:id="@id/android:list"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:scrollbars="vertical"
android:layoutAnimation="@anim/list_anim_layout"/>
<Button
android:id="@+id/button"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="測試"/>
</LinearLayout>
8)item.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="horizontal"
android:paddingLeft="10dip"
android:paddingRight="10dip"
android:paddingTop="1dip"
android:paddingBottom="1dip">
<TextView android:id="@+id/name"
android:layout_width="180dip"
android:layout_height="30dip"
android:textSize="7px"
android:singleLine="true" />
<TextView android:id="@+id/sex"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:textSize="7px"
android:singleLine="true"/>
</LinearLayout>
9)java文件
public class Animation2Activity extendsListActivity {
private Button button = null;
private ListView listView = null;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
listView = getListView();
button = (Button)findViewById(R.id.button);
button.setOnClickListener(newButtonListener());
}
private ListAdapter createListAdapter() {
List<HashMap<String,String>> list =
new ArrayList<HashMap<String,String>>();
HashMap<String,String> m1 = new HashMap<String,String>();
m1.put("name", "bauble");
m1.put("sex", "male");
HashMap<String,String> m2 = new HashMap<String,String>();
m2.put("name", "Allorry");
m2.put("sex", "male");
HashMap<String,String> m3 = new HashMap<String,String>();
m3.put("name", "Allotory");
m3.put("sex", "male");
HashMap<String,String> m4 = new HashMap<String,String>();
m4.put("name", "boolbe");
m4.put("sex", "male");
list.add(m1);
list.add(m2);
list.add(m3);
list.add(m4);
SimpleAdapter simpleAdapter = new SimpleAdapter(
this,list,R.layout.item,new String[]{"name","sex"},
new int[]{R.id.name,R.id.sex});
return simpleAdapter;
}
private class ButtonListener implementsOnClickListener{
public void onClick(View v) {
listView.setAdapter(createListAdapter());
}
}
}
備註:要將整個動畫效果設置到LinerLayout中,能夠這樣設置:
<LinearLayoutxmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layoutAnimation="@anim/list_anim_layout"
>
3、在代碼當中使用LayoutAnimationController
1)去掉main.xml中的android:layoutAnimation="@anim/list_anim_layout"/>
2)建立一個Animation對象:能夠經過裝載xml文件,或者是直接使用Animation的構造方法建立Animation對象;
Animation animation = (Animation) AnimationUtils.loadAnimation(
Animation2Activity.this, R.anim.list_anim);
3)建立LayoutAnimationController對象:
LayoutAnimationController controller = new LayoutAnimationController(animation);
4)設置控件的顯示順序以及延遲時間
controller.setOrder(LayoutAnimationController.ORDER_NORMAL);
controller.setDelay(0.5f);
5)爲ListView設置LayoutAnimationController屬性:
listView.setLayoutAnimation(controller);
完整代碼:
private class ButtonListener implementsOnClickListener {
public void onClick(View v) {
listView.setAdapter(createListAdapter());
Animation animation = (Animation) AnimationUtils.loadAnimation(
Animation2Activity.this, R.anim.list_anim);
LayoutAnimationController controller = new LayoutAnimationController(animation);
controller.setOrder(LayoutAnimationController.ORDER_NORMAL);
controller.setDelay(0.5f);
listView.setLayoutAnimation(controller);
}
}
AnimationListener
1、什麼是AnimationListener
1).AnimationListener是一個監聽器,該監聽器在動畫執行的各個階段會獲得通知,從而調用相應的方法;
2).AnimationListener主要包括以下三個方法:
n ·onAnimationEnd(Animation animation) - 當動畫結束時調用
n ·onAnimationRepeat(Animation animation) - 當動畫重複時調用
n ·onAniamtionStart(Animation animation) - 當動畫啓動時調用
2、具體實現
1)main.xml
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/layout"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent">
<Button android:id="@+id/addButton"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:text="添加圖片" />
<Button android:id="@+id/deleteButton"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_above="@id/addButton"
android:text="刪除圖片" />
<ImageView android:id="@+id/image"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerInParent="true"
android:layout_marginTop="100dip"
android:src="@drawable/an" />
</RelativeLayout>
2).java文件
public class Animation2Activity extends Activity {
private Button addButton = null;
private Button deleteButton = null;
private ImageView imageView = null;
private ViewGroup viewGroup = null;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
addButton = (Button)findViewById(R.id.addButton);
deleteButton = (Button)findViewById(R.id.deleteButton);
imageView = (ImageView)findViewById(R.id.image);
//LinearLayout下的一組控件
viewGroup = (ViewGroup)findViewById(R.id.layout);
addButton.setOnClickListener(newAddButtonListener());
deleteButton.setOnClickListener(newDeleteButtonListener());
}
private class AddButtonListener implements OnClickListener{
public void onClick(View v) {
//淡入
AlphaAnimation animation = new AlphaAnimation(0.0f, 1.0f);
animation.setDuration(1000);
animation.setStartOffset(500);
//建立一個新的ImageView
ImageView newImageView = new ImageView(
Animation2Activity.this);
newImageView.setImageResource(R.drawable.an);
viewGroup.addView(newImageView,
new LayoutParams(
LayoutParams.FILL_PARENT,
LayoutParams.WRAP_CONTENT));
newImageView.startAnimation(animation);
}
}
private class DeleteButtonListener implements OnClickListener{
public void onClick(View v) {
//淡出
AlphaAnimation animation = new AlphaAnimation(1.0f, 0.0f);
animation.setDuration(1000);
animation.setStartOffset(500);
//爲Aniamtion對象設置監聽器
animation.setAnimationListener(
new RemoveAnimationListener());
imageView.startAnimation(animation);
}
}
private class RemoveAnimationListener implements AnimationListener{
//動畫效果執行完時remove
public void onAnimationEnd(Animation animation) {
System.out.println("onAnimationEnd");
viewGroup.removeView(imageView);
}
public void onAnimationRepeat(Animation animation) {
System.out.println("onAnimationRepeat");
}
public void onAnimationStart(Animation animation) {
System.out.println("onAnimationStart");
}
}
}
3、總結一下
能夠在Activity中動態添加和刪除控件,方法是:
1)取到那個Layout
viewGroup = (ViewGroup)findViewById(R.id.layout);
2)添加時,先建立對象,而後添加
ImageView newImageView = new ImageView(
Animation2Activity.this);
newImageView.setImageResource(R.drawable.an);
viewGroup.addView(newImageView,
new LayoutParams(
LayoutParams.FILL_PARENT,
LayoutParams.WRAP_CONTENT));
3)刪除時,直接刪除。
viewGroup.removeView(imageView);