Android 开发中根据搜索内容实现TextView中的文字部分加粗

@SuppressLint("ParcelCreator")public class SearchStyleSpan extends StyleSpan { public SearchStyleSpan(int style) {  super(style); } @Override public void updateDrawState(TextPaint ds) {  ds.setFakeBoldText(true);  //FIXME 这里还可以做其他差异性设置（修改文字大小等）  super.updateDrawState(ds); } @Override public void updateMeasureState(TextPaint paint) {  paint.setFakeBoldText(true);  super.updateMeasureState(paint); }}

mEditText.addTextChangedListener(new TextWatcher() {   @Override   public void beforeTextChanged(CharSequence s, int start, int count, int after) {   }   @Override   public void onTextChanged(CharSequence s, int start, int before, int count) {   }   @Override   public void afterTextChanged(Editable editable) {    checkSearchContent(mEditText.getText().toString());   }  });

SpannableStringBuilder searchStyle = new SpannableStringBuilder();  int start;  while (content.contains(searchContent)) {   start = content.indexOf(searchContent);   searchStyle.append(getBoldSpannable(content.substring(0, start + searchContent.length()), searchContent));   content = content.substring(start + searchContent.length());  }  searchStyle.append(content);

 int start = content.indexOf(searchContent);  SpannableStringBuilder ssb = new SpannableStringBuilder(content);  ssb.setSpan(new SearchStyleSpan(Typeface.NORMAL), start, start + searchContent.length(), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);