updated html text view

updated builder

Author: Salvatore Ranieri

README.md

@@ -98,6 +98,23 @@ If you want to handle href you need to add
         tv.setMovementMethod(LinkMovementMethod.getInstance());
 ```
 
+You can alternatively use a builder to initialize the HtmlSpanner
+
+```java
+        HtmlSpanner htmlSpanner = new HtmlSpanner.Builder()
+                                    .textColor(tv.getCurrentTextColor())
+                                    .textSize(tv.getTextSize())
+                                    .backgroundColor(tv.getSolidColor())
+                                    .tableHeaderCenter(isTableHeaderCentered)
+                                    .build();
+```
+
+the builder possible parameters are:
+- textColor, this attribute is required since is used to initialize the htmlspanner with a custom text color;
+- textSize, this attribute is required since is used to initialize the htmlspanner with a custom text size;
+- backgroundColor, this attribute is required since is used to initialize the htmlspanner with a custom background color to handle html tags like "div" correctly;
+- tableHeaderCenter, if this attribute is set to false or true it will define the centering of the table header fields in tables, by default table header is centered.
+
 2. Alternatively you can use an **SDHtmlTextView** which is a custom TextView that integrates HtmlSpanner to handle html texts :
 
 2.1 **Add the library as a dependency**
@@ -117,7 +134,7 @@ If you want to handle href you need to add
 
 **kotlin:**
 
-```java
+```kotlin
         String html=loadStringFromAssetFile(this,"example.html")
         htmlTextView.htmlText = html
 ```
@@ -129,6 +146,29 @@ If you want to handle href you need to add
         SDHtmlTextView htmlTextView = (SDHtmlTextView) findViewById(R.id.text);
         htmlTextView.setHtmlText(html);
 ```
+2.3 if you want to override html table header centering behaviour you need to add this attribute "tableHeaderCentered" you can add via xml
+
+```xml
+    <com.sysdata.kt.htmltextview.SDHtmlTextView
+        android:id="@+id/textView"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        app:tableHeaderCentered="false"/>
+```
+
+or in the code in this way
+
+**kotlin:**
+
+```kotlin
+        textView.isTableHeaderCentered = false
+```
+
+**java:**
+
+```java
+        textView.setTableHeaderCentered(false)
+```
 
 ## License
 Copyright (C) 2017 Sysdata S.p.A.

htmltextview/src/main/java/com/sysdata/kt/htmltextview/SDHtmlTextView.kt

@@ -8,26 +8,39 @@ import com.sysdata.htmlspanner.HtmlSpanner
 
 class SDHtmlTextView: TextView {
 
-    constructor(context: Context?):super(context, null)
+    constructor(context: Context?):this(context, null)
 
-    constructor(context: Context?, attrs: AttributeSet?) : super(context, attrs, 0)
+    constructor(context: Context?, attrs: AttributeSet?) : this(context, attrs, 0)
 
-    constructor(context: Context?, attrs: AttributeSet?, defStyleAttr: Int): super(context, attrs, defStyleAttr)
+    constructor(context: Context?, attrs: AttributeSet?, defStyleAttr: Int): super(context, attrs, defStyleAttr){
+        if(attrs != null) {
+            context?.let { ctx ->
+                val a = ctx.theme.obtainStyledAttributes(
+                        attrs,
+                        R.styleable.SDHtmlTextView,
+                        defStyleAttr, 0)
 
-    private var htmlSpanner: HtmlSpanner
+                isTableHeaderCentered = a.getBoolean(R.styleable.SDHtmlTextView_tableHeaderCentered, true)
 
-    var htmlText:String? = null
-    set(value) {
-        text = htmlSpanner.fromHtml(value)
-    }
-
-    init {
+                a.recycle()
+            }
+        }
         this.movementMethod = LinkMovementMethod.getInstance()
+
         htmlSpanner = HtmlSpanner.Builder()
                 .textColor(textColors.defaultColor)
                 .textSize(textSize)
                 .backgroundColor(solidColor)
+                .tableHeaderCenter(isTableHeaderCentered)
                 .build()
     }
 
+    private var htmlSpanner: HtmlSpanner
+    public var isTableHeaderCentered: Boolean = true
+
+    var htmlText:String? = null
+    set(value) {
+        text = htmlSpanner.fromHtml(value)
+    }
+
 }

htmltextview/src/main/res/values/styles.xml

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+
+    <declare-styleable name="SDHtmlTextView">
+        <attr name="tableHeaderCentered" format="boolean"/>
+    </declare-styleable>
+</resources>