增加扩展方式说明 issue#18 和 issue#21

Author: hongyangAndroid

README.md

@@ -39,7 +39,7 @@ ok，拿一些实际项目的页面，看下不同分辨率下的效果：
 
 还有很多好处，比如上面的Item里面元素比较多，如果标识的比较全面，一个FrameLayout，里面的View填写各种marginLeft,marginTop就能完美实现，几乎不需要嵌套了。
 
-## 用法
+## 引入
 
 * Android Studio
 
@@ -63,6 +63,8 @@ dependencies {
 
 下载[AutoLayoutDemoForEclipse.zip](AutoLayoutDemoForEclipse.zip)，导入到eclipse中即可。
 
+## 用法
+
 ### 第一步：
 
 在你的项目的AndroidManifest中注明你的`设计稿`的尺寸。
@@ -124,6 +126,62 @@ dependencies {
 1. 你们UI给的设计图的尺寸并非是主流的设计图，该尺寸没找到，你可以自己去新建一个设备。
 2. 不要在PreView中去查看所有分辨率下的显示，是看不出来适配效果的，因为有些计算是动态的。
 
+## 扩展
+
+对于其他继承系统的FrameLayout、LinearLayout、RelativeLayout的控件，比如`CardView`，如果希望再其内部直接支持"px"百分比化，可以自己扩展，扩展方式为下面的代码，也可参考[issue#21](https://github.com/hongyangAndroid/AndroidAutoLayout/issues/21)：
+
+```
+package com.zhy.sample.view;
+
+import android.content.Context;
+import android.support.v7.widget.CardView;
+import android.util.AttributeSet;
+
+import com.zhy.autolayout.AutoFrameLayout;
+import com.zhy.autolayout.utils.AutoLayoutHelper;
+
+/**
+ * Created by zhy on 15/12/8.
+ */
+public class AutoCardView extends CardView
+{
+    private final AutoLayoutHelper mHelper = new AutoLayoutHelper(this);
+
+    public AutoCardView(Context context)
+    {
+        super(context);
+    }
+
+    public AutoCardView(Context context, AttributeSet attrs)
+    {
+        super(context, attrs);
+    }
+
+    public AutoCardView(Context context, AttributeSet attrs, int defStyleAttr)
+    {
+        super(context, attrs, defStyleAttr);
+    }
+
+    @Override
+    public AutoFrameLayout.LayoutParams generateLayoutParams(AttributeSet attrs)
+    {
+        return new AutoFrameLayout.LayoutParams(getContext(), attrs);
+    }
+
+    @Override
+    protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec)
+    {
+        if (!isInEditMode())
+        {
+            mHelper.adjustChildren();
+        }
+        super.onMeasure(widthMeasureSpec, heightMeasureSpec);
+    }
+
+
+}
+```
+
 
 ## 注意事项
 

sample/build.gradle

@@ -24,4 +24,5 @@ dependencies {
     compile 'com.android.support:appcompat-v7:23.1.0'
     compile project(':autolayout')
     compile 'com.android.support:design:23.1.0'
+    compile 'com.android.support:cardview-v7:23.1.0'
 }

sample/sample.iml

@@ -72,6 +72,7 @@
       <excludeFolder url="file://$MODULE_DIR$/build/intermediates/dex" />
       <excludeFolder url="file://$MODULE_DIR$/build/intermediates/dex-cache" />
       <excludeFolder url="file://$MODULE_DIR$/build/intermediates/exploded-aar/com.android.support/appcompat-v7/23.1.0/jars" />
+      <excludeFolder url="file://$MODULE_DIR$/build/intermediates/exploded-aar/com.android.support/cardview-v7/23.1.0/jars" />
       <excludeFolder url="file://$MODULE_DIR$/build/intermediates/exploded-aar/com.android.support/design/23.1.0/jars" />
       <excludeFolder url="file://$MODULE_DIR$/build/intermediates/exploded-aar/com.android.support/recyclerview-v7/23.1.0/jars" />
       <excludeFolder url="file://$MODULE_DIR$/build/intermediates/exploded-aar/com.android.support/support-v4/23.1.0/jars" />
@@ -96,6 +97,7 @@
     <orderEntry type="library" exported="" name="support-annotations-23.1.0" level="project" />
     <orderEntry type="library" exported="" name="appcompat-v7-23.1.0" level="project" />
     <orderEntry type="library" exported="" name="design-23.1.0" level="project" />
+    <orderEntry type="library" exported="" name="cardview-v7-23.1.0" level="project" />
     <orderEntry type="library" exported="" name="support-v4-23.1.0" level="project" />
     <orderEntry type="module" module-name="autolayout" exported="" />
   </component>

sample/src/main/java/com/zhy/sample/view/AutoCardView.java

@@ -0,0 +1,49 @@
+package com.zhy.sample.view;
+
+import android.content.Context;
+import android.support.v7.widget.CardView;
+import android.util.AttributeSet;
+
+import com.zhy.autolayout.AutoFrameLayout;
+import com.zhy.autolayout.utils.AutoLayoutHelper;
+
+/**
+ * Created by zhy on 15/12/8.
+ */
+public class AutoCardView extends CardView
+{
+    private final AutoLayoutHelper mHelper = new AutoLayoutHelper(this);
+
+    public AutoCardView(Context context)
+    {
+        super(context);
+    }
+
+    public AutoCardView(Context context, AttributeSet attrs)
+    {
+        super(context, attrs);
+    }
+
+    public AutoCardView(Context context, AttributeSet attrs, int defStyleAttr)
+    {
+        super(context, attrs, defStyleAttr);
+    }
+
+    @Override
+    public AutoFrameLayout.LayoutParams generateLayoutParams(AttributeSet attrs)
+    {
+        return new AutoFrameLayout.LayoutParams(getContext(), attrs);
+    }
+
+    @Override
+    protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec)
+    {
+        if (!isInEditMode())
+        {
+            mHelper.adjustChildren();
+        }
+        super.onMeasure(widthMeasureSpec, heightMeasureSpec);
+    }
+
+
+}