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#FragmentStack

一个封装了启动模式的Fragment便捷使用库,方便构建单Activity+多Fragment轻量级框架。

一 为什么要写这个库

1.Fragment创建速度完胜Activity,在长期的开发实践中,明显感觉到Fragment响应速度,内存占用等方面拥有巨大的优势,将页面fragment化有助于提升app流畅度;

2.fragment创建和使用相比Activity更加麻烦,其中,回退栈管理,动画,关闭,隐藏等不便于使用,需要进一步封装提升效率;

3.fragment缺少启动模式,使得管理起来很有难度,很多在Activity上很常见的需求在Fragment使用需要更多更复杂的技巧,不利于快速开发;

二 它能为你做什么

1.替代传统的Activity页面,轻量化页面;

2.开启,关闭,动画,回退栈,生命周期回调等操作更加方便,一行代码即可搞定;

3.自带Activity四种启动模式,接管了系统的回退栈,很常见的场景,如 用户中心--->注册用户--->注册成功--->返回原来的用户中心,就可以设置启动模式为singleTask,注册成功后退出当前任务栈,或者设置用户中心singleInstance,直接new创建后再onNewInstance()方法中更新数据即可,框架自动remove上层fragment;

三 配置和开始使用

对于如何导入,也是相当的简单,android studio的用户,直接:

project build.gradle加入jitpack

allprojects {
	repositories {
		...
		maven { url "https://jitpack.io" }
	}
}

项目的build.gradle加入
compile 'com.github.Mr-wangyong:FragmentStack:v1.0.2'

然后,在你的项目中,MainActivity继承RootActivity

public class MainActivity extends RootActivity {

    @Override
    protected RootFragment getRootFragment() {
        return new HomeFragment();
    }

    @Override
    public void onCreateNow(Bundle savedInstanceState) {
        setAnim(R.anim.next_in, R.anim.next_out, R.anim.quit_in, R.anim.quit_out);
    }
}

Fragment继承RootFragment

public class HomeFragment extends RootFragment{

    @Nullable
    @Override
    public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {

    }
}

接下来,可以自由方便的使用Fragment了;

四 API说明

1.打开一个新的Fragment;

常规方式

open(new Fragment());

带参形式

open(new Fragment());
在新Fragment中用Bundle bundle = getArguments();获取

带启动模式形式,支持四种启动模式(实际项目中以singleTask最为实用);

open(new Fragment1(), null, StackManager.STANDARD);
open(new Fragment1(), null, StackManager.SINGLE_TOP);
open(new Fragment1(), null, StackManager.SINGLE_TASK);
open(new Fragment1(), null, StackManager.SINGLE_INSTANCE);

关闭当前的fragment

close()

关闭指定的Fragment

close(fragment)

设置页面切换动画

setAnim(R.anim.next_in, R.anim.next_out, R.anim.quit_in, R.anim.quit_out);

进入下一个页面,两个页面的回调,只需重写

private void onNowHidden() {

}

private void onNextShow() {

}

Fragment获取依赖的Activity

RootActivity root = getRoot();

singleTop,fragment被重复创建的回调

@Override
public void onNewIntent() {
}

若需要监听按键事件,只需设置setKeyCallBack

setKeyCallBack(new KeyCallBack() {
        @Override
        public boolean onKeyDown(int keyCode, KeyEvent event) {
            return false;
        }
    });

使用效果:

Pull Requests 与 Issues

欢迎大家发现问题与共同维护该项目,喜欢就Star吧,后面会扩展更多实用功能

Author

Mr.wang

感谢

[钟白兔]建立一个属于自己的框架

[Harlber] Github

此框架已在本公司商业项目使用:

南瓜电影http://www.wandoujia.com/apps/cn.vcinema.cinema

fragmentstack's People

Contributors

mr-chengwangyong avatar mr-wangyong avatar yan96in avatar

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fragmentstack's Issues

页面状态不保存

当页面跳转多层之后 屏幕旋转模拟 ac销毁 然后所有界面消失,直接回到首页

页面状态不保存

当页面跳转多层之后 屏幕旋转模拟 ac销毁 然后所有界面消失,直接回到首页

gradel error

Failed to resolve com.mrwang.Fragmenttack:stacklibrary:1.0.0

很崩溃

进行Monkey测试,报FragmentHostCallback.getLoaderManager(java.lang.String, boolean, boolean)' on a null object reference异常

为什么RootActivity的onkeydown 不能继承

我的需求是,当用户按下返回键,不退出activity

@OverRide
public boolean onKeyDown(int keyCode, KeyEvent event)
{
switch (keyCode)
{
case KeyEvent.KEYCODE_BACK:
return true;
}
return super.onKeyDown(keyCode, event);
}

页面切换时,偶现异常

在执行过程中,偶现下面的"this activity mast be extends RootActivity",请问是什么原因引起,又需要如何解决。
public RootActivity getRoot() {
FragmentActivity activity = getActivity();
if (activity instanceof RootActivity) {
return (RootActivity) activity;
} else {
throw new ClassCastException("this activity mast be extends RootActivity");
}
}

ids后面不能赋值为false


<resources> <item type="id" name="framLayoutId">false</item> </resources>
改成
<resources> <item type="id" name="framLayoutId" /> </resources>

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