# Basictransition01

**Repository Path**: AnimationDemo/basictransition01

## Basic Information

- **Project Name**: Basictransition01
- **Description**: No description available
- **Primary Language**: Unknown
- **License**: Not specified
- **Default Branch**: master
- **Homepage**: None
- **GVP Project**: No

## Statistics

- **Stars**: 0
- **Forks**: 0
- **Created**: 2017-05-10
- **Last Updated**: 2020-12-19

## Categories & Tags

**Categories**: Uncategorized

**Tags**: None

## README

scene:场景，trasition:转换。

# BasicTransition #
```
getSceneForLayout()+TransitionManager.go(scene3)+new Scene()需要API>=19
```
demo中共有3个scene，分别是scene1、scene2、scene3,对应的xml分别是scene1.xml、scene2.xml、scene3.xml,scene本身的根布局的id都是一样的，这里是`container`;
## scene_root: ##
存放scene的布局
```
<LinearLayout>
	....
    <FrameLayout
        android:id="@+id/scene_root"
        android:layout_width="match_parent"
        android:layout_height="match_parent">

        <include layout="@layout/scene0"/>
    </FrameLayout>
</LinearLayout>
```
## scene1.xml ##
scene本身的根布局的id都是一样的，这里是`container`;
```
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
    android:id="@+id/container"
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical">

    <View
        android:id="@+id/view1"
        android:layout_width="100dp"
        android:layout_height="100dp"
        android:layout_alignParentBottom="true"
        android:background="@color/colorAccent"/>

    <View
        android:id="@+id/view2"
        android:layout_width="100dp"
        android:layout_height="100dp"
        android:layout_alignParentBottom="true"
        android:layout_alignParentEnd="true"
        android:background="@color/colorPrimary"/>

    <View
        android:id="@+id/view3"
        android:layout_width="100dp"
        android:layout_height="100dp"
        android:layout_centerHorizontal="true"
        android:background="@color/color1"/>

</RelativeLayout>
```
## 创建scene的2种方法 ##
第一种：试了下new Scene()无效果
```
Scene scene1 = new Scene(scene_root, container)
scene_root：存放scene的布局
container:scene本身的根布局
```
第二种：
```
Scene scene1 = Scene.getSceneForLayout(scene_root, R.layout.scene1, context);
第一个参数：存放scene的布局
第二个参数：scene
第三个参数：context
```

## 变换scene ##
```
//第一种：
TransitionManager.go(scene1);
//第2种：
TransitionManager transitionManager = new TransitionManager();
transitionManager.transitionTo(scene3)
```

## 步骤 ##
1. 创建scene
2. 转换scene

对应的方法分别是：
```
Scene scene1 = Scene.getSceneForLayout(scene_root, R.layout.scene1, context);
TransitionManager.go(scene1);
```
## 自定义TransitionManager ##
```
TransitionInflater transitionInflater = TransitionInflater.from(context);
TransitionManager transitionManager = transitionInflater.inflateTransitionManager(R.transition.custom_transition_manager, scene_root);
```
custom_transition_manager.xml是放在value/transition文件夹中
```
<?xml version="1.0" encoding="utf-8"?>
<transitionManager xmlns:android="http://schemas.android.com/apk/res/android">
    <transition android:toScene="@layout/scene3"
                android:transition="@transition/changebounds_fadein_transition"/>
</transitionManager>
```
其中changebounds_fadein_transition.xml也是放在value/transition文件夹中
```
<?xml version="1.0" encoding="utf-8"?>
<transitionSet xmlns:android="http://schemas.android.com/apk/res/android">
    <changeBounds/>
    <fade android:fadingMode="fade_in_out" android:duration="500">
        <targets>
            <target android:targetId="@id/tv"/>
        </targets>
    </fade>
</transitionSet>
```
## 没有scene怎么实现动画效果 ##
### 代码 ###
```
transitionManager.beginDelayedTransition(scene_root);

View view2 = findViewById(R.id.view2);
ViewGroup.LayoutParams params = view2.getLayoutParams();
int dimension = (int) getResources().getDimension(R.dimen.dimen50);
params.width = dimension;
params.height = dimension;
view2.requestLayout();
```
### 效果图 ###


# 其它 #
参考：https://github.com/googlesamples/android-BasicTransition
demo：http://git.oschina.net/AnimationDemo/basictransition01