7. Android框架和工具之 android-percent-support-lib-sample(百分比支持)

1. android-percent-support-lib-sample介绍:

谷歌最新的百分比布局库的示例项目。其实LinearLayout的layout_weight也能实现百分比效果,不过这个更直接。

android-percent-support-lib-sample项目地址:

https://github.com/JulienGenoud/android-percent-support-lib-sample

简单效果:

 

 

复杂效果:

 

2. 百分比库使用Demo:

这里的Eclipse版本库代码(包含示例代码),我已经完整提交到Github。地址如下:

https://github.com/PocketBoy/Local/tree/master/Eclipse_android_percent_support

(1)点击上面的链接,下载库代码,解压,导入Eclipse之中:

(2)这里我们新建一个Android工程,命名位"PercentDemo",如下:

 

上面库文件需要引用android-support-v4.jar

(3)来到上面自定义属性文件attrs.xml,如下:

<?xml version="1.0" encoding="utf-8"?>
<resources>
    <declare-styleable name="PercentLayout_Layout">
        <attr name="layout_widthPercent" format="string"/>
        <attr name="layout_heightPercent" format="string"/>
        <attr name="layout_marginPercent" format="string"/>
        <attr name="layout_marginLeftPercent" format="string"/>
        <attr name="layout_marginTopPercent" format="string"/>
        <attr name="layout_marginRightPercent" format="string"/>
        <attr name="layout_marginBottomPercent" format="string"/>
        <attr name="layout_marginStartPercent" format="string"/>
        <attr name="layout_marginEndPercent" format="string"/>
        <attr name="layout_textSizePercent" format="string"/>
        <attr name="layout_maxWidthPercent" format="string"/>
        <attr name="layout_maxHeightPercent" format="string"/>
        <attr name="layout_minWidthPercent" format="string"/>
        <attr name="layout_minHeightPercent" format="string"/>
    </declare-styleable>
</resources>

 至于怎么使用自定义属性,请参照笔记:

自定义控件(视图)28期笔记06:自定义控件之 自定义属性

(4)来到activity_main.xml布局文件之中:

<?xml version="1.0" encoding="utf-8"?>
<android.support.percent.PercentLinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical" >

    <android.support.percent.PercentLinearLayout
        xmlns:android="http://schemas.android.com/apk/res/android"
        xmlns:app="http://schemas.android.com/apk/res-auto"
        android:layout_width="match_parent"
        android:layout_height="0dp"
        app:layout_heightPercent="33.3%"
        android:orientation="horizontal" >

        <View
  
            android:id="@+id/view_11"
            android:layout_width="0dp"
            android:layout_height="match_parent"
            app:layout_widthPercent="50%"
            android:background="#ff44aacc" />

        <View
            android:id="@+id/view_12"
            android:layout_width="0dp"
            android:layout_height="match_parent"
            app:layout_widthPercent="50%"
            android:background="#664466cc" />
    </android.support.percent.PercentLinearLayout>

     <android.support.percent.PercentLinearLayout
        xmlns:android="http://schemas.android.com/apk/res/android"
        xmlns:app="http://schemas.android.com/apk/res-auto"
        android:layout_width="match_parent"
        android:layout_height="0dp"
        app:layout_heightPercent="33.3%"
        android:orientation="horizontal" >

        <View
  
            android:id="@+id/view_21"
            android:layout_width="0dp"
            android:layout_height="match_parent"
            app:layout_widthPercent="25%"
            android:background="#ff44ffcc" />

        <View
            android:id="@+id/view_22"
            android:layout_width="0dp"
            android:layout_height="match_parent"
            app:layout_widthPercent="25%"
            android:background="#8585855c" />
        
        <View
  
            android:id="@+id/view_23"
            android:layout_width="0dp"
            android:layout_height="match_parent"
            app:layout_widthPercent="25%"
            android:background="#ff444545" />

        <View
            android:id="@+id/view_24"
            android:layout_width="0dp"
            android:layout_height="match_parent"
            app:layout_widthPercent="25%"
            android:background="#556ff776" />
    </android.support.percent.PercentLinearLayout>
    
      <android.support.percent.PercentLinearLayout
        xmlns:android="http://schemas.android.com/apk/res/android"
        xmlns:app="http://schemas.android.com/apk/res-auto"
        android:layout_width="match_parent"
        android:layout_height="0dp"
        app:layout_heightPercent="33.3%"
        android:orientation="horizontal" >

        <View
  
            android:id="@+id/view_31"
            android:layout_width="0dp"
            android:layout_height="match_parent"
            app:layout_widthPercent="50%"
            android:background="#ffffff00" />

        <View
            android:id="@+id/view_32"
            android:layout_width="0dp"
            android:layout_height="match_parent"
            app:layout_widthPercent="50%"
            android:background="#ffff00ff" />
    </android.support.percent.PercentLinearLayout>

</android.support.percent.PercentLinearLayout>

布局效果如下:

(5)来到activity_main1.xml,如下:

<android.support.percent.PercentRelativeLayout 
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="@android:color/white" >

    <View
        android:id="@+id/top_left"
        android:layout_width="0dp"
        android:layout_height="0dp"
        android:layout_alignParentTop="true"
        app:layout_heightPercent="20%"
        app:layout_widthPercent="70%"
        android:background="#ff44aacc" />

    <View
        android:id="@+id/top_right"
        android:layout_width="0dp"
        android:layout_height="0dp"
        android:layout_alignParentTop="true"
        android:layout_toRightOf="@+id/top_left"
        app:layout_heightPercent="20%"
        app:layout_widthPercent="30%"
        android:background="#ffe40000" />

    <android.support.percent.PercentFrameLayout
        android:id="@+id/bottom"
        android:layout_width="match_parent"
        android:layout_height="0dp"
        android:layout_below="@+id/top_left"
        android:layout_gravity="center"
        app:layout_heightPercent="80%"
        android:background="#ff00ff22" >

        <android.support.percent.PercentLinearLayout
            android:layout_width="fill_parent"
            android:layout_height="0dp"
            app:layout_heightPercent="100%"
            app:layout_marginTopPercent="10%"
            android:background="@android:color/white"
            android:orientation="vertical"
            >
            <View
                android:layout_width="0dp"
                android:layout_height="0dp"
                app:layout_heightPercent="30%"
                app:layout_widthPercent="10%"
                android:background="#ff44ccdd" />
            <View
                android:layout_width="0dp"
                android:layout_height="0dp"
                app:layout_heightPercent="30%"
                app:layout_widthPercent="90%"
                android:background="#ffe400dd" />
            <TextView 
                android:layout_width="0dp"
                 android:layout_height="0dp"
                app:layout_heightPercent="20%"
                app:layout_widthPercent="90%"
                android:background="#ccc"
                android:text="margin 15% of w"
                app:layout_marginPercent="5%h"
                />             
        </android.support.percent.PercentLinearLayout>
    </android.support.percent.PercentFrameLayout>

</android.support.percent.PercentRelativeLayout>

布局效果如下:

(6)activity_main2.xml,如下:

<?xml version="1.0" encoding="utf-8"?>
<android.support.percent.PercentFrameLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical">

    <android.support.percent.PercentFrameLayout
        android:layout_width="0dp"
        android:layout_height="0dp"
        android:layout_gravity="center"
        android:background="#ff44aacc"
        app:layout_heightPercent="50%w"
        app:layout_widthPercent="50%w">

        <android.support.percent.PercentFrameLayout
            android:layout_width="0dp"
            android:layout_height="0dp"
            android:layout_gravity="center"
            android:background="#ffcc5ec7"
            app:layout_heightPercent="50%w"
            app:layout_widthPercent="50%w">

            <TextView
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                android:layout_gravity="center"
                android:background="#ff7ecc16"
                android:gravity="center"
                android:text="margin 15% of w"
                app:layout_marginPercent="15%w"
                />

        </android.support.percent.PercentFrameLayout>

    </android.support.percent.PercentFrameLayout>

    <TextView android:layout_width="0dp"
              android:layout_height="0dp"
              android:layout_gravity="bottom|right"
              android:background="#44ff0000"
              android:gravity="center"
              android:text="15%w,15%w"
              app:layout_heightPercent="15%w"
              app:layout_marginPercent="5%w"
              app:layout_widthPercent="15%w"/>


</android.support.percent.PercentFrameLayout>

布局效果如下:

原文地址:https://www.cnblogs.com/hebao0514/p/5467792.html