There are two types of animation resources: Property Animation creates an animation within a set time by modifying the property values of the object associated with the animator class. View animations have two types of view animation frame motion Tweens (Tween animation): Create animations by performing a series of transformations on a single picture associated with the animation class. Frame animation (frame animation): Creates an animation by displaying a sequence of pictures related to the order of the Animationdrawable class. Properties Animation animation is defined in the XML of the target object's properties to be modified, such as the background color or alpha value within the set time. File location: res/animator/filename.xml, file name is used as resource ID. Compiled resource type (COMPILED rsource DATATYPE): resource to point to Valueanimator, Objectanimator, or Animatorset type resource reference (RESOURCE REFERENCE): :r.animation.filename in the Java Code:@[package:]animator/filename Syntax (SYNTAX) in the XML file: <set android:ordering=["Together" | "Sequentially"]> http://www.huiyi8.com/jiaoben/ <objectAnimator Android:propertyname= "string" android:duration= "int" android:valuefrom= "float | int | Color " android:valueto=" float | int | Color android:startoffset= "int" android:repeatcount= "int" android:repeatmode=["repeat" | "Reverse"] android:valuetype=["Inttype" | "Floattype"]/> <animator android:duration= "int" android:valuefrom= "float | int | Color " android:valueto=" float | int | Color android:startoffset= "int" android:repeatcount= "int" android:repeatmode=["repeat" | "Reverse"] android:valuetype=["Inttype" | "Floattype"]/> <set> ... </set></set>& nbsp; This file must have a single element: either <set>, <objectAnimator> or <valueAnimator>. You can organize animation elements together into <set> elements, including other <set> elements. Elements (ELEMENTS): <set> A container that can contain other animated elements (<objectAnimator>, <valueanimator >, or other <set> yuan(vegetarian). Represents a Animatorset object. You can specify <set> nested tags to organize more animations together. Each <set> is able to define its own order properties. Properties (ATTRIBUTES): android:ordering Key property that specifies the order in which the animations in the collection are played. Values Description sequentially play the animation sequentially in this set of collections. together (default) Play the animation in this group collection at the same time <objectAnimator> specific animated properties of an object within a specific set time, Represents a Objectanimator object. Properties (ATTRIBUTES): android:propertyname String type, required. This name is used to refer to the animated object properties. For example, you can assign an "alpha" or "backgroundcolor" property to a View object. The Objectanimator element does not expose the target property, so you cannot set an object to animate in an XML declaration. The animation XML resource must be populated into the target object that contains the property by calling the Loadanimator () method and the Settarget () method. android:valueto floating-point type, integer, or color value, required. It is the end value of the animation property. The color is expressed in six hexadecimal digits (such as #333333). android:valuefrom floating-point type, integer, or color value, which is the starting value of the animation property, if not specified, Then the animation starts at the moment when the value is fetched with the property's Get method. The color is a six-digit hexadecimal number representation (such as #333333). android:duration integer types. Specifies the animation time in milliseconds, which is 300 milliseconds by default. android:startoffset integer types. The number of milliseconds that the animation is delayed after the start () method is called. android:repeatcount integer types. Specifies the number of repetitions of the animation. Set to "1", indicating that you want to repeat indefinitely, or specify a positive integer. For example, set to 1, which indicates that the animation is repeated once after the first run, so the animation is played two times. The default value is 0, which means that it is not duplicated. android:repeatmode positive integers. Specifies how the animation behaves when it reaches the end. This property is effective only if Android:repeatcount is set to a positive integer or "1". If set to "reverse", the animation will play backwards each time it repeats, and if set to "repeat", the animation will be played from the beginning of the animation each time it repeats. android:valuetype key properties. If the value is a color value, then this property is not specified. The animation frame automatically handles color values. Value Description intType The value of the specified animation is an integer floattype (default) The value of the specified animation is a floating point <animator> The animation within the set time. Represents a Valueanimator object. Properties (ATTRIBUTES): android:valueto Floating-point, Integer, or color values, required. It is the value of the end of the animation. Color values are represented by a six-digit hexadecimal number (for example, #333333) android:valuefrom float, integer, or color values, required. It is the value at which the animation begins. Color values are represented by a six-digit hexadecimal number (e.g., #333333) ANDROID:DURATION&Nbsp; integers. Specifies the playback time of the animation, in milliseconds. The default is 300 milliseconds. android:startoffset integers. Specifies the number of milliseconds that the animation is delayed after the start () method is called. android:repeatcount integers. Specifies the number of repetitions of the animation. If set to "1", the animation repeats indefinitely, or a positive integer is specified. For example, when set to "1", the animation plays again once after the initial run, so the animation is played two times in total. Its default value is 0, which means that the animation repeats. android:repeatMode integer. It specifies how the animation repeats when it reaches the end. This property only works if the Android:repeatcount must be set to a positive integer or "1". If set to "reverse", the animation will play backwards each time it is replayed, and if it is set to "repeat", then the animation will start again each time it is replayed. android:valueType key attributes, if the value is a color, do not specify this property. Because the animation frame automatically handles the color values values Description intType The value of the specified animation is an integer floattype (default) The value of the specified animation is a floating point Example (EXAMPLE): This XML file is saved in Res/animator/property_animator.xml: <set android:ordering= "sequentially" > <set> <objectAnimator Andro Id:propertyname= "x" &nbsP android:duration= "$" android:valueto= "400" & nbsp android:valuetype= "Inttype"/> <objectAnimator android:propertyname= "y" android:duration= "50 0 " android:valueto=" " Android:valuety Pe= "Inttype"/> </set> <objectAnimator Android: Propertyname= "Alpha" android:duration= "$" android:valueto= "1f" /></set> AD Code to run this animation, you must populate the code with the XML resource into a Animatorset object, and then set the target object to all animations before starting the animation set. Calling the Settarget method makes it easy to set a single object to all child objects of the Animatorset object. The code is as follows: animatorset set = (Animatorset) animatorinflater.loadanimator (mycontext, r.anim.property_ animator); set.sEttarget (MyObject); Set.start ();
