private FixingResult addSpacesAroundSpansUntilFixed(
SpannableStringBuilder builder, int widthMeasureSpec, int heightMeasureSpec) {
Object[] spans = builder.getSpans(0, builder.length(), Object.class);
List<Object> spansWithSpacesBefore = new ArrayList<Object>(spans.length);
List<Object> spansWithSpacesAfter = new ArrayList<Object>(spans.length);
for (Object span : spans) {
int spanStart = builder.getSpanStart(span);
if (isNotSpace(builder, spanStart - 1)) {
builder.insert(spanStart, " ");
spansWithSpacesBefore.add(span);
}
int spanEnd = builder.getSpanEnd(span);
if (isNotSpace(builder, spanEnd)) {
builder.insert(spanEnd, " ");
spansWithSpacesAfter.add(span);
}
try {
setTextAndMeasure(builder, widthMeasureSpec, heightMeasureSpec);
return FixingResult.fixed(spansWithSpacesBefore, spansWithSpacesAfter);
} catch (IndexOutOfBoundsException notFixed) {
}
}
if (HtmlTextView.DEBUG) {
Log.d(HtmlTextView.TAG, "Could not fix the Spanned by adding spaces around spans");
}
return FixingResult.notFixed();
}
/**
* 组合消息文本
*
* @param name
* @param body
* @return
*/
public static SpannableStringBuilder parseFriendPostpan(
String name, SpannableStringBuilder body) {
SpannableStringBuilder sp = null;
int start = 0;
int end = 0;
String mName = name + "：";
sp = body.insert(0, mName);
// sp = new SpannableString(name + "：" + body);
end = name.length();
// 设置用户名字体加粗、高亮
sp.setSpan(
new StyleSpan(android.graphics.Typeface.BOLD),
start,
end,
Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
sp.setSpan(
new ForegroundColorSpan(Color.parseColor("#2f548f")),
start,
end,
Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
sp.setSpan(
new ForegroundColorSpan(Color.parseColor("#ff000000")),
end,
sp.length(),
Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
return sp;
}
public void testFilter() {
// Define the variables
CharSequence source;
SpannableStringBuilder dest;
// Constructor to create a LengthFilter
LengthFilter lengthFilter = new LengthFilter(10);
InputFilter[] filters = {lengthFilter};
// filter() implicitly invoked. If the total length > filter length, the filter will
// cut off the source CharSequence from beginning to fit the filter length.
source = "abc";
dest = new SpannableStringBuilder("abcdefgh");
dest.setFilters(filters);
dest.insert(1, source);
String expectedString1 = "aabbcdefgh";
assertEquals(expectedString1, dest.toString());
dest.replace(5, 8, source);
String expectedString2 = "aabbcabcgh";
assertEquals(expectedString2, dest.toString());
dest.delete(1, 3);
String expectedString3 = "abcabcgh";
assertEquals(expectedString3, dest.toString());
// filter() explicitly invoked
dest = new SpannableStringBuilder("abcdefgh");
CharSequence beforeFilterSource = "TestLengthFilter";
String expectedAfterFilter = "TestLength";
CharSequence actualAfterFilter =
lengthFilter.filter(
beforeFilterSource, 0, beforeFilterSource.length(), dest, 0, dest.length());
assertEquals(expectedAfterFilter, actualAfterFilter);
}
@SuppressLint("WrongCall")
private void removeUnneededSpaces(
int widthMeasureSpec,
int heightMeasureSpec,
SpannableStringBuilder builder,
FixingResult result) {
for (Object span : result.spansWithSpacesAfter) {
int spanEnd = builder.getSpanEnd(span);
builder.delete(spanEnd, spanEnd + 1);
try {
setTextAndMeasure(builder, widthMeasureSpec, heightMeasureSpec);
} catch (IndexOutOfBoundsException ignored) {
builder.insert(spanEnd, " ");
}
}
boolean needReset = true;
for (Object span : result.spansWithSpacesBefore) {
int spanStart = builder.getSpanStart(span);
builder.delete(spanStart - 1, spanStart);
try {
setTextAndMeasure(builder, widthMeasureSpec, heightMeasureSpec);
needReset = false;
} catch (IndexOutOfBoundsException ignored) {
needReset = true;
int newSpanStart = spanStart - 1;
builder.insert(newSpanStart, " ");
}
}
if (needReset) {
setText(builder);
super.onMeasure(widthMeasureSpec, heightMeasureSpec);
}
}
/**
* 组合回复引用文本
*
* @param name
* @param body
* @return
*/
public static SpannableStringBuilder parseQuoteSpan(String name, SpannableStringBuilder body) {
String nName = "回复：" + name + "\n";
SpannableStringBuilder sp = body.insert(0, nName);
// 设置用户名字体加粗、高亮
sp.setSpan(
new StyleSpan(android.graphics.Typeface.BOLD),
3,
nName.length(),
Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
sp.setSpan(
new ForegroundColorSpan(Color.parseColor("#0e5986")),
3,
nName.length(),
Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
return sp;
}
private void geckoReplaceText(int start, int oldEnd, CharSequence newText) {
// Don't use replace() because Gingerbread has a bug where if the replaced text
// has the same spans as the original text, the spans will end up being deleted
mText.delete(start, oldEnd);
mText.insert(start, newText);
}