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README
Apache-2.0

StateFrameLayout

简介

项目中经常遇到这样一种情况,新打开的界面需要加载数据,存在多种状态的结果,需要根据不同结果展示界面,这个过程归纳起来可以分为五种状态:初始状态Init、请求状态Loading、空数据状态Empty、网络错误状态NetError、成功请求状态Content。 如果多个界面都存在这个流程,那么封装整个过程的调用就很有必要了,既可以简化调用过程,又可以很方便的管理整个流程。

StateFrameLayout 继承自FrameLayout,内部实现了一句代码切换各种状态的功能,并且内部实现了状态缓存,无需担心内存回收后重新打开界面会导致状态被重置(可打开手机开发者选项中的“不保留活动”来验证)。

使用

2.0.0版本和之前不兼容

【最新版本号以这里为准】

Gradle中引用

    #last-version请查看上面的最新版本号
    #2.0.0迁移到MavenCentral后引用方式如下

    implementation 'com.lwkandroid.library:StateFrameLayout:last-version'

全局配置

2.0.0版本开始支持全局配置,可统一设置公共配置,示例如下:

# 在Application入口处设置
public class DemoApplication extends Application
{
    @Override
    public void onCreate()
    {
        super.onCreate();
        //全局配置
        StateFrameLayoutManager.getGlobalOptions()
                .setEmptyLayoutId(R.layout.layout_empty) //全局Empty状态的视图id
                .setLoadingLayoutId(R.layout.layout_loading) //全局Loading状态的视图id
                .setNetErrorLayoutId(R.layout.layout_net_error) //全局NetError状态的视图id
                .setEnableContentAnim(true) //是否允许内容视图显示动画
                .setContentAnim(new BaseContentAnimation()); //全局内容视图显示的动画对象,可继承BaseContentAnimation对象自定义 
    }
}

xml中定义

    <com.lwkandroid.widget.StateFrameLayout
        android:id="@+id/stateLayout"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        app:enableContentAnim="true"   //是否在展示内容布局的时候开启动画(默认200ms的Alpha动画)
        app:emptyLayoutResId="@layout/layout_empty"   //Empty状态的视图id
        app:loadingLayoutResId="@layout/layout_loading" //Loading状态的视图id
        app:netErrorLayoutResId="@layout/layout_net_error" //NetError状态的视图id
        >

        <!--在这里定义内容布局,内容布局只能有一个-->
        <FrameLayout
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:background="@android:color/holo_green_dark">

            <TextView
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_gravity="center"
                android:text="我是内容"
                android:textAppearance="?android:textAppearanceLarge"/>

        </FrameLayout>

    </com.lwkandroid.widget.StateFrameLayout>

代码中使用

    StateFrameLayout mStateFrameLayout = (StateFrameLayout) findViewById(R.id.stateLayout);
    //Empty状态的视图id
    mStateFrameLayout.setEmptyLayoutId(R.layout.layout_empty2);
    //Loading状态的视图id
    mStateFrameLayout.setLoadingLayoutId(R.layout.layout_loading);
    //NetError状态的视图id
    mStateFrameLayout.setNetErrorLayoutId(R.layout.layout_net_error);
    //设置内容视图的显示动画
    mStateFrameLayout.setContentAnimation(BaseContentAnimation animation);
    
    //切换到Init初始状态,所有视图均不可见,这也是StateFrameLayout加载完成后的默认状态
    mStateFrameLayout.switchToInitState();
    //切换到Empty状态
    mStateFrameLayout.switchToEmptyState();
    //切换到Loading状态
    mStateFrameLayout.switchToLoadingState();
    //切换到NetError状态
    mStateFrameLayout.switchToNetErrorState();
    //切换到Content状态
    mStateFrameLayout.switchToContentState();

效果图


混淆配置

无需特别混淆规则

参考

MaterialPageStateLayout: https://github.com/Syehunter/MaterialPageStateLayout
感谢所有为开源做出贡献的人们!

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简介

Android 状态切换布局,可自定义Loading、Empty、NetError、Success四种状态样式,自带状态恢复 展开 收起
Android
Apache-2.0
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