android在文本框中输入和显示表情
public void inputFace(EditText contentEdt, int position, Context context) {
int index = contentEdt.getSelectionStart();
int drawId = ToolUtils.faceId[position];
String string = ToolUtils.stringId[position];
contentEdt.getText().insert(index, string);
SpannableString spannableString = new SpannableString(contentEdt.getText());
Drawable d = context.getResources().getDrawable(drawId);
//设置图片大小
d.setBounds(0, 0, d.getIntrinsicWidth(), d.getIntrinsicHeight());
//插入的位置
spannableString.setSpan(new ImageSpan(d, ImageSpan.ALIGN_BOTTOM), index, index + string.length(), Spannable.SPAN_INCLUSIVE_EXCLUSIVE);
// spannableString.setSpan(new ImageSpan(context, drawId), index, index + string.length(),
// Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
contentEdt.setText(spannableString, TextView.BufferType.SPANNABLE);
contentEdt.setSelection(index + string.length());
contentEdt.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
if (rootView != null) {
rootView.setVisibility(View.GONE);
}
}
});
}
public void showFace(TextView text, String content, ArrayList<String> indexText, String colorContent) {
if (StringUtils.isNullOrEmpty(content)) {
return;
}
if (null != indexText && !indexText.isEmpty()) {
String[] temp = null;
int start = 0;
int end = 0;
SpannableString spanText = new SpannableString(colorContent);
// LogUtils.d(TAG, "showFace: " + colorContent + " " + Arrays.asList(indexText));
for (String string : indexText) {
temp = string.split("#");
start = Integer.valueOf(temp[0]);
end = Integer.valueOf(temp[1]);
spanText.setSpan(new ForegroundColorSpan(Color.parseColor("#0178b0")), start, end, Spannable.SPAN_INCLUSIVE_EXCLUSIVE);
}
text.append(spanText);
}
if (content.contains("/")) {
// LogUtils.d(TAG, "showFace() contain/");
Pattern pattern = null;
pattern = Pattern.compile("/[a-z]{2}");
Matcher matcher = pattern.matcher(content);
int size = ToolUtils.dip2px(text.getContext(), 20);
Integer drawableSrc = null;
SpannableString spannableString = new SpannableString(content);
while (matcher.find()) {
// LogUtils.d(TAG, "showFace() finded " + matcher.group());
int start = matcher.start();
int end = matcher.end();
drawableSrc = ToolUtils.getFaceId(matcher.group());
// LogUtils.d(TAG, "showFace() drawableSrc " + drawableSrc);
if (drawableSrc > 0) {
//以下代码是在指定位置插入图片
final Drawable d = text.getContext().getResources().getDrawable(drawableSrc);
//设置图片大小
d.setBounds(0, 0, size, size);
spannableString.setSpan(getDynamicSpan(d), start, end,
Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
}
}
text.append(spannableString);
} else {
text.append(content);
}
}
private DynamicDrawableSpan getDynamicSpan(final Drawable d) {
DynamicDrawableSpan dynamicDraw = new DynamicDrawableSpan(DynamicDrawableSpan.ALIGN_BOTTOM) {
@Override
public Drawable getDrawable() {
return d;
}
@Override
public int getSize(Paint paint, CharSequence text, int start, int end, Paint.FontMetricsInt fm) {
Drawable d = getDrawable();
Rect rect = d.getBounds();
if (fm != null) {
fm.ascent = -rect.bottom;
fm.descent = 0;
fm.top = fm.ascent;
fm.bottom = 0;
}
return rect.right;
}
/*
* Copy-paste of super.draw(...) but use getDrawable() to get the image/frame to draw, in stead of
* the cached drawable.
*/
@Override
public void draw(Canvas canvas, CharSequence text, int start, int end, float x, int top, int y, int bottom, Paint paint) {
Drawable b = getDrawable();
canvas.save();
int transY = bottom - b.getBounds().bottom;
if (mVerticalAlignment == ALIGN_BASELINE) {
transY -= paint.getFontMetricsInt().descent;
}
canvas.translate(x, transY);
b.draw(canvas);
canvas.restore();
}
};
return dynamicDraw;
}