TangoAreaDescriptionMetaData区域描述元数据

java.lang.Object
- com.google.atap.tangoservice.TangoAreaDescriptionMetaData

```
public class TangoAreaDescriptionMetaData
extends java.lang.Object
```
Metadata for an Area Description File (ADF). It can be used to read and write Metadata from/to ADF files.这是ADF的元数据。它可以用于从ADF文件读和写元数据。

Field Summary域摘要

Fields 域
Modifier and Type修饰符和类型	Field and Description域和描述
`static <any>`	`CREATOR` Implements the required Creator interface for an Android Parcelable.实现Android Parcelable所需要的Creator接口。
`static java.lang.String`	`KEY_DATE_MS_SINCE_EPOCH` The key corresponding to the creation date of the ADF measured in milliseconds since Unix epoch as a 64-Bit unsigned integer.ADF创建日期（从UNIX纪元以来）
`static java.lang.String`	`KEY_NAME` The key corresponding to the human readable name of the ADF file.ADF文件的可读名称。
`static java.lang.String`	`KEY_TRANSFORMATION` The key corresponding to a transform from the ADF to a global coordinate frame.从ADF到全球坐标框架的转换。
`static java.lang.String`	`KEY_UUID` The key corresponding to the UUID of the ADF, used as a unique identifier for the ADF file.ADF的UUID，用来作为ADF文件的唯一标识。

Constructor Summary构造器摘要

Constructors 构造器
Constructor and Description
`TangoAreaDescriptionMetaData()` Creates an empty `TangoAreaDescriptionMetaData` object that can be populated later.创建一个空的TangoAreaDescriptionMetaData对象后面可以填充。

Method Summary方法摘要

All Methods Instance Methods Concrete Methods 所有方法实例方法具体方法
Modifier and Type	Method and Description
`int`	`describeContents()` Needed to implement the Android Parcelable interface.需要实现Android Parcelable接口
`byte[]`	`get(java.lang.String key)` Searches through the metadata list for a key that matches the parameter `key`.搜索元数据列表查找符合参数key的键
`java.util.Set<java.lang.String>`	`keySet()` Gets the set of keys.获取键的集
`void`	`readFromParcel(Parcel in)` Populates a TangoAreaDescriptionMeta object with data from an Android Parcel.用Android Parcel的数据填充一个TangoAreaDescriptionMeta对象
`void`	`set(java.lang.String key, byte[] value)` Sets the value associated with an area description key to a new value.将一个区域描述相关的值设为新值。
`void`	`writeToParcel(Parcel dest, int flags)` Writes a TangoAreaDescriptionMeta object to an Android Parcel.将一个TangoAreaDescriptionMeta对象写到一个Android Parcel中。

Methods inherited from class java.lang.Object从java.lang.Object继承的方法
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail域的细节
  - KEY_UUID唯一标识符
```
public static final java.lang.String KEY_UUID
```
    The key corresponding to the UUID of the ADF, used as a unique identifier for the ADF file. Returned as a null terminated character array.
    
    See Also:
    Constant Field Values
  - KEY_NAME唯一标识名称
```
public static final java.lang.String KEY_NAME
```
    The key corresponding to the human readable name of the ADF file. Returned as a null terminated character array.
    
    See Also:
    Constant Field Values
  - KEY_TRANSFORMATION
```
public static final java.lang.String KEY_TRANSFORMATION
```
    The key corresponding to a transform from the ADF to a global coordinate frame. The data consists of 7 double precision elements:与从ADF转到全球坐标框架相关的键。该数据包括7个双精度类型的元素：
    - x, y, z :ECEF (earth centered earth fixed) Cartesian frame of reference at the center of the earth which rotates with the earth).
    - qx, qy, qz, qw : Hamilton Quaternion.
    The default corresponding values are:
    (x, y, z, qx, qy, qz, qw) = (0, 0, 0, 0, 0, 0, 1).
    See Also:
    Constant Field Values
  - KEY_DATE_MS_SINCE_EPOCH
```
public static final java.lang.String KEY_DATE_MS_SINCE_EPOCH
```
    The key corresponding to the creation date of the ADF measured in milliseconds since Unix epoch as a 64-Bit unsigned integer. Setting this value on the client side using TangoAreaDescriptionMetadata_set()will have no effect on the data stored by the server. Also, when you call TangoService_saveAreaDescriptionMetadata() it ignores the value.
    
    See Also:
    Constant Field Values
  - CREATOR
```
public static final <any> CREATOR
```
    Implements the required Creator interface for an Android Parcelable. This allows reading and writing to an Android Parcel object.
- Constructor Detail构造器细节
  - TangoAreaDescriptionMetaData
```
public TangoAreaDescriptionMetaData()
```
    Creates an empty TangoAreaDescriptionMetaData object that can be populated later.创建一个空的TangoAreaDescriptionMetaData对象可以以后填充。
- Method Detail方法细节
  - get获取
```
public byte[] get(java.lang.String key)
```
    Searches through the metadata list for a key that matches the parameter key. If such a key is found, returns the value associated with that key.搜寻与key相符的子数据列表。如果该key发现，将返回与key相关的值。
    
    Parameters:
    key - The string key value of the parameter to get.
    Returns:
    The value of the parameter in bytes.
  - set设置
```
public void set(java.lang.String key,
                byte[] value)
```
    Sets the value associated with an area description key to a new value.设置与一个区域描述key相关的值。
    
    Parameters:
    key - The string key value of the parameter to set.
    value - The value to set the key to in bytes.
  - keySet键集合
```
public java.util.Set<java.lang.String> keySet()
```
    Gets the set of keys.获取键的集合。
  - describeContents描述内容
```
public int describeContents()
```
    Needed to implement the Android Parcelable interface. Can be used to describe the kinds of objects contained in Parcelable's marshalled representation, but we'll just return 0 since we don't need that ability.要实现Android Parcelable接口必须实现该方法。可以被用来描述包含在Parcelable集合表示中的对象的种类，但是我们返回0因为我们不需要那个功能。
    
    Returns:
    Will always return 0.
  - readFromParcel
```
public void readFromParcel(Parcel in)
```
    Populates a TangoAreaDescriptionMeta object with data from an Android Parcel.用Android Parcel中的数据填充TangoAreaDescriptionMeta对象。
    
    Parameters:
    in - The Parcel to read from.
  - writeToParcel
```
public void writeToParcel(Parcel dest,
                          int flags)
```
    Writes a TangoAreaDescriptionMeta object to an Android Parcel.将TangoAreaDescriptionMeta对象写入Android Parcel中。
    
    Parameters:
    dest - The Parcel to write to.
    flags - This parameter is required by the Parcelable interface, but is unused for this implementation.

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上次更新日期：五月 5, 2017

TangoAreaDescriptionMetaData区域描述元数据

TangoAreaDescriptionMetaData

Class TangoAreaDescriptionMetaData

Field Summary域摘要

Constructor Summary构造器摘要

Method Summary方法摘要

Methods inherited from class java.lang.Object从java.lang.Object继承的方法

Field Detail域的细节

KEY_UUID唯一标识符

KEY_NAME唯一标识名称

KEY_TRANSFORMATION

KEY_DATE_MS_SINCE_EPOCH

CREATOR

Constructor Detail构造器细节

TangoAreaDescriptionMetaData

Method Detail方法细节

get获取

set设置

keySet键集合

describeContents描述内容

readFromParcel

writeToParcel