# Camera

**Repository Path**: redrose/camera

## Basic Information

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

## Statistics

- **Stars**: 0
- **Forks**: 0
- **Created**: 2021-01-27
- **Last Updated**: 2021-01-31

## Categories & Tags

**Categories**: Uncategorized

**Tags**: None

## README

# Camera

#### 介绍
{**以下是 Gitee 平台说明，您可以替换此简介**
Gitee 是 OSCHINA 推出的基于 Git 的代码托管平台（同时支持 SVN）。专为开发者提供稳定、高效、安全的云端软件开发协作平台
无论是个人、团队、或是企业，都能够用 Gitee 实现代码托管、项目管理、协作开发。企业项目请看 [https://gitee.com/enterprises](https://gitee.com/enterprises)}

#### 软件架构
软件架构说明
Navigation+BottomBavigationView 跳转，分别点击第一个，第二个，第三个 Fragment生命周期回调
启动

FristFragment生命周期
2021-01-28 22:21:52.364 22487-22487/com.redrose.camera D/com.redrose.camera.fragment.FirstFragment: onAttach:
2021-01-28 22:21:52.366 22487-22487/com.redrose.camera D/com.redrose.camera.fragment.FirstFragment: onCreate:
2021-01-28 22:21:52.636 22487-22487/com.redrose.camera D/com.redrose.camera.fragment.FirstFragment: onCreateView:
2021-01-28 22:21:52.656 22487-22487/com.redrose.camera D/com.redrose.camera.fragment.FirstFragment: onViewCreated:
2021-01-28 22:21:52.687 22487-22487/com.redrose.camera D/com.redrose.camera.fragment.FirstFragment: onResume:

启动第二个SecondFragment
SecondFragment生命周期

2021-01-28 22:22:09.972 22487-22487/com.redrose.camera D/com.redrose.camera.fragment.SecondFragment: onAttach:
2021-01-28 22:22:09.974 22487-22487/com.redrose.camera D/com.redrose.camera.fragment.SecondFragment: onCreate:
2021-01-28 22:22:09.976 22487-22487/com.redrose.camera D/com.redrose.camera.fragment.SecondFragment: onCreateView:
2021-01-28 22:22:10.001 22487-22487/com.redrose.camera D/com.redrose.camera.fragment.SecondFragment: onViewCreated:
2021-01-28 22:22:10.006 22487-22487/com.redrose.camera D/com.redrose.camera.fragment.SecondFragment: onResume:

SecondFragment启动完毕，FristFragment的生命周期
2021-01-28 22:22:10.015 22487-22487/com.redrose.camera D/com.redrose.camera.fragment.FirstFragment: onStop:

启动第三个
ThirdFragment生命周期

2021-01-28 22:27:32.444 22487-22487/com.redrose.camera D/com.redrose.camera.fragment.ThirdFragment: onAttach:
2021-01-28 22:27:32.446 22487-22487/com.redrose.camera D/com.redrose.camera.fragment.ThirdFragment: onCreate:
2021-01-28 22:27:32.448 22487-22487/com.redrose.camera D/com.redrose.camera.fragment.ThirdFragment: onCreateView:
2021-01-28 22:27:32.471 22487-22487/com.redrose.camera D/com.redrose.camera.fragment.ThirdFragment: onViewCreated:
2021-01-28 22:27:32.475 22487-22487/com.redrose.camera D/com.redrose.camera.fragment.ThirdFragment: onResume:

SecondFragment生命周期

2021-01-28 22:27:32.481 22487-22487/com.redrose.camera D/com.redrose.camera.fragment.SecondFragment: onStop:
2021-01-28 22:27:32.630 22487-22487/com.redrose.camera D/com.redrose.camera.fragment.SecondFragment: onDestroy:
2021-01-28 22:27:32.630 22487-22487/com.redrose.camera D/com.redrose.camera.fragment.SecondFragment: onDetach:

发现SecondFragment 被销毁了，出栈了
点击返回，是回到第一个Fragment
FristFragment生命周期

2021-01-28 22:30:03.815 22487-22487/com.redrose.camera D/com.redrose.camera.fragment.FirstFragment: onCreateView:
2021-01-28 22:30:03.841 22487-22487/com.redrose.camera D/com.redrose.camera.fragment.FirstFragment: onViewCreated:
2021-01-28 22:30:03.846 22487-22487/com.redrose.camera D/com.redrose.camera.fragment.FirstFragment: onResume:

ThirdFragment生命周期

2021-01-28 22:30:03.856 22487-22487/com.redrose.camera D/com.redrose.camera.fragment.ThirdFragment: onStop:
2021-01-28 22:30:04.017 22487-22487/com.redrose.camera D/com.redrose.camera.fragment.ThirdFragment: onDestroy:
2021-01-28 22:30:04.018 22487-22487/com.redrose.camera D/com.redrose.camera.fragment.ThirdFragment: onDetach:

结论：单Activity+多Fragment结构下，各个Fragment的加载数据应放到ViewModel中去处理，并且，ViewModel的生命周期是和Activity是协同的
同时，问题也有：如何解决，某个Fragment重新执行onCreate时，数据倒灌的问题




#### 安装教程


#### 使用说明

#### 参与贡献



#### 特技