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BackgroudLibrary

A framework for directly generating shape through Tags, no need to write shape.xml again（通过标签直接生成shape，无需再写shape.xml）

Add this to your app's build.gradle：

implementation "com.android.support:appcompat-v7:$supportVersion"
implementation 'com.noober.background:core:1.2.0'

Example effect

How to use

1、Calling code before the 'super.onCreate' in BaseActivity

BackgroundLibrary.inject(context);

2、Add the attributes directly in the layout

Blog introduction

Custom attributes supported

The following are all custom attributes that are exactly the same as shape and selector.

shape

All attributes of shape are supported. The naming rule is 'tag name'_'tag attribute name':

name category
shape rectangle、oval、line、ring(not support yet)
solid_color color
corners_radius dimension
corners_bottomLeftRadius dimension
corners_bottomRightRadius dimension
corners_topLeftRadius dimension
corners_topRightRadius dimension
gradient_angle integer
gradient_centerX float
gradient_centerY float
gradient_centerColor color
gradient_endColor color
gradient_startColor color
gradient_gradientRadius dimension
gradient_type linear、radial、sweep
gradient_useLevel boolean
size_width dimension
size_height dimension
stroke_width dimension
stroke_color color
stroke_dashWidth dimension
stroke_dashGap dimension

selector

All attributes of selector are supported：

name category
checkable_drawable color、reference
checked_drawable color、reference
enabled_drawable color、reference
selected_drawable color、reference
pressed_drawable color、reference
focused_drawable color、reference
focused_hovered color、reference
focused_activated color、reference
unCheckable_drawable color、reference
unChecked_drawable color、reference
unEnabled_drawable color、reference
unSelected_drawable color、reference
unPressed_drawable color、reference
unFocused_drawable color、reference
unFocused_hovered color、reference
unFocused_activated color、reference

other

name category remark
ripple_enable boolean ensure that the ripple effect is enabled
ripple_color color the color of ripple

example

1.stroke+corner+solid

<TextView
    android:layout_width="130dp"
    android:layout_height="36dp"
    android:gravity="center"
    android:text="TextView"
    android:textColor="#8c6822"
    android:textSize="20sp"
    app:corners_radius="4dp"
    app:solid_color="#E3B666"
    app:stroke_color="#8c6822"
    app:stroke_width="2dp" />

equals to

<shape xmlns:android="http://schemas.android.com/apk/res/android">
    <corners android:radius="2dp"/>
    <solid android:color="#E3B666"/>
    <stroke android:color="#E3B666" android:width="2dp"/>
</shape>

2、gradient

<shape xmlns:android="http://schemas.android.com/apk/res/android">
    <corners android:radius="2dp"/>
    <gradient android:angle="0" 
              android:startColor="#63B8FF"
              android:endColor="#4F94CD"/>
</shape>

equals to

 <Button
    android:id="@+id/btn"
    android:layout_width="130dp"
    android:layout_height="36dp"
    android:layout_marginTop="5dp"
    android:gravity="center"
    android:padding="0dp"
    android:text="跳转到列表"
    android:textColor="#4F94CD"
    android:textSize="20sp"
    app:corners_radius="2dp"
    app:gradient_angle="0"
    app:gradient_endColor="#4F94CD"
    app:gradient_startColor="#63B8FF" />

the effect of click

the first：

android:layout_width="20dp"
android:layout_height="20dp"
android:layout_marginTop="5dp"
app:pressed_drawable="@drawable/circle_like_pressed"
app:unPressed_drawable="@drawable/circle_like_normal" />

equals:

<selector xmlns:android="http://schemas.android.com/apk/res/android">
    <item android:state_pressed="true"
        android:drawable="@drawable/circle_like_pressed" />
    <item android:state_pressed="false"
        android:drawable="@drawable/circle_like_normal" />
</selector>

the second：

<Button
        android:layout_width="300dp"
        android:layout_height="50dp"
        android:layout_marginTop="5dp"
        android:gravity="center"
        android:padding="0dp"
        android:text="有波纹触摸反馈的按钮"
        android:textColor="@android:color/white"
        android:textSize="20sp"
        app:corners_radius="20dp"
        app:pressed_drawable="#71C671"
        app:ripple_color="#71C671"
        app:ripple_enable="true"
        app:stroke_color="#8c6822"
        app:stroke_width="2dp"
        app:unPressed_drawable="#7CFC00" />

In fact, it is basically the same as shape and selector.

Use attention

1、selector的相关属性，如果传入的drawable不是颜色的资源，会覆盖掉shape设置的属性
2、在根布局添加

    tools:ignore="MissingPrefix"

可以防止报红
3、因为layoutInflater限制了只能有一个factory，如果有其他库已经使用了setFactory方法，比如换肤的库，只需要在其他库调用layoutInflater.setFactory之后调用

BackgroundLibrary.inject2(context);

这样其他的库与本库同样可以生效。
4、selector一个item表示多个属性，暂时无法实现，如下：

 <item android:state_pressed="true" android:state_focused="true"
    android:drawable="@drawable/button_pressed" />

因为无法用一个属性去表示两种状态，有思路的同学可以告诉我
5、fragment使用无需任何处理，其Activity调用inject即可
6、listView，recyclerView使用也无需任何处理。 如果不生效，只需要

//在调用inflate只需调用一次context，保证adapter创建View时传入的是同一个context即可
BackgroundLibrary.inject(context);

View item = LayoutInflater.from(context).inflate(xxx)

7、自定义View中调用了inflate，同listView一样处理即可