Android实现EditText中添加和删除bitmap的方法

这篇文章主要介绍了Android实现EditText中添加和删除bitmap的方法,实例分析了Android中EditText控件的bitmap操作技巧,需要的朋友可以参考下

本文实例讲述了实现中添加和删除的方法。分享给大家供大家参考，具体如下：

				?

									SpannableString mSpan1 = new SpannableString("1");

									/*

									* this is add bitmap on edit text

									*/

									private void displayBitmapOnText(Bitmap thumbnailBitmap) {

									if(thumbnailBitmap == null)

									return;

									    int start = mEditText.getSelectionStart();

									    mSpan1.setSpan(new ImageSpan(thumbnailBitmap) , mSpan1.length() - 1, mSpan1.length(), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);

									//    mSpan1.toString();

									    if(mEditText != null) {

									      Editable et = mEditText.getText();

									      et.insert(start, mSpan1);

									      mEditText.setText(et);

									      mEditText.setSelection(start + mSpan1.length());

									    }

									    mEditText.setLineSpacing(10f, 1f);

									}

									/*

									* this is delete bitmap on edit text

									* from end to start

									*/

									private void deleteEditTextSpan() {

									    Spanned s = mEditText.getEditableText();

									    ImageSpan[] imageSpan = s.getSpans(0, s.length(), ImageSpan.class); 

									    for (int i = imageSpan.length - 1; i >= 0; i--) {

									      if(i == imageSpan.length - 1) {

									        int start = s.getSpanStart(imageSpan[i]);

									        int end = s.getSpanEnd(imageSpan[i]);

									        Editable et = mEditText.getText();

									        et.delete(start, end);

									      }

									    }

									    mEditText.invalidate();

									}