However, the documentation does not stipulate what HTML tags are supported, which makes this method a bit hit-or-miss. More importantly, it means that you cannot rely on what it will support from release to release.
I have filed an issue requesting that Google formally document what it intends to support. In the interim, from a quick look at the source code, here’s what seems to be supported as of Android 2.1:
定義鏈接內容
定義粗體文字 b 是blod的縮寫
定義大字體的文字
引用塊標籤
屬性:
Common -- 一般屬性
cite -- 被引用內容的URI
定義換行
表示引用的URI
定義標籤 dfn 是defining instance的縮寫
強調標籤 em 是emphasis的縮寫
定義斜體文字
段落標籤,裏面可以加入文字,列表,表格等
定義小字體的文字
定義刪除線樣式的文字 不符合標準網頁設計的理念,不贊成使用. strike是strikethrough的縮寫
重點強調標籤
下標標籤 sub 是subscript的縮寫
上標標籤 sup 是superscript的縮寫
定義monospaced字體的文字 不贊成使用. 此標籤對中文沒意義 tt是teletype or monospaced text style的意思
定義帶有下劃線的文字 u是underlined text style的意思
一、在xml文件中使用android:textStyle=”bold”
二、但是不能將中文設置成粗體，將中文設置成粗體的方法是：
TextView tv = ( TextView) findViewById( R. id . TextView01) ;
TextPaint tp = tv. getPaint ( ) ;
tp. setFakeBoldText( true) ;
Selecting, Highlighting, or Styling Portions of Text
You can highlight or style the formatting of strings or substrings of text in a TextView object. There are two ways to do this:
If you use a string resource, you can add some simple styling, such as bold or italic using HTML notation. The currently supported tags are: B (bold), I (italic), U (underline), TT (monospace), BIG, SMALL, SUP (superscript), SUB (subscript), and STRIKE (strikethrough). So, for example, in res/values/strings.xml you could declare this:
id="@+id/styled_welcome_message">We are so glad to see you.
To style text on the fly, or to add highlighting or more complex styling, you must use the Spannable object as described next.
To style text on the fly, you must make sure the TextView is using Spannable storage for the text (this will always be true if the TextView is an EditText), retrieve its text with getText(), and call setSpan(Object, int, int, int), passing in a new style class from the android.text.style package and the selection range.
The following code snippet demonstrates creating a string with a highlighted section, italic section, and bold section, and adding it to an EditText object.
// Get our EditText object.
EditText vw = (EditText)findViewById(R.id.text);
// Set the EditText's text.
vw.setText("Italic, highlighted, bold.");
// If this were just a TextView, we could do:
// vw.setText("Italic, highlighted, bold.", TextView.BufferType.SPANNABLE);
// to force it to use Spannable storage so styles can be attached.
// Or we could specify that in the XML.
// Get the EditText's internal text storage
Spannable str = vw.getText();
// Create our span sections, and assign a format to each.
str.setSpan(new StyleSpan(android.graphics.Typeface.ITALIC), 0, 7, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
str.setSpan(new BackgroundColorSpan(0xFFFFFF00), 8, 19, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
str.setSpan(new StyleSpan(android.graphics.Typeface.BOLD), 21, str.length() - 1, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
I sometimes have the case to arrange the image next to the characters.
We can do it by putting TextView and ImageView into Layout.
But today I introduce the other way using only TextView.
The following sample code is how to show the image next to text.
(show four image(left, top, right, bottom of text))
final TextView textView = (TextView)findViewById(R.id.diet_log_label);
final Drawable iconDrawable = getResources().getDrawable(R.drawable.icon);
textView.setCompoundDrawablesWithIntrinsicBounds(iconDrawable, iconDrawable, iconDrawable, iconDrawable);
// or
textView.setCompoundDrawablesWithIntrinsicBounds(R.drawable.icon, R.drawable.icon, R.drawable.icon, R.drawable.icon);
To show only left image, write "setCompoundDrawablesWithIntrinsicBounds(iconDrawable, null, null, null)"