setCompoundDrawables和setCompoundDrawablesWithIntrinsicBounds区别
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http://blog.csdn.net/zwq1457/article/details/8088368
手工设置文本与图片相对位置时,常用到如下方法:
setCompoundDrawables(left, top, right, bottom);
setCompoundDrawablesWithIntrinsicBounds(left, top, right, bottom)
意思是设置Drawable显示在text的左、上、右、下位置。
(Textview、Button都可以)
但是两者有些区别:
setCompoundDrawables 画的drawable的宽高是按drawable.setBound()设置的宽高,
所以才有The Drawables must already have had setBounds(Rect) called.
意思是说使用之前必须使用Drawable.setBounds设置Drawable的长宽。
而setCompoundDrawablesWithIntrinsicBounds是画的drawable的宽高是按drawable固定的宽高,
即通过getIntrinsicWidth()与getIntrinsicHeight()获得,所以才有
The Drawables' bounds will be set to their intrinsic bounds.这句话之说!
- private AutoCompleteTextView mEditText;
- mEditText = new AutoCompleteTextView(context,attrs);
- mEditText.setHint(R.string.btn_search);
- mEditText.setTextSize(14);
- mEditText.setCompoundDrawablesWithIntrinsicBounds(getResources().getDrawable(R.drawable.iphonesearch_search_3), null, null, null);
- mEditText.addTextChangedListener(new TextWatcher(){
- public void afterTextChanged(Editable s) {}
- public void beforeTextChanged(CharSequence s, int start, int count,int after) {}
- public void onTextChanged(CharSequence s, int start, int before,int count) {
- boolean isSearch = false;
- if (s == null || s.toString().equals("")) {
- mClose.setVisibility(View.INVISIBLE);
- isSearch = false;
- } else {
- mClose.setVisibility(View.VISIBLE);
- isSearch = true;
- }
- mListener.startSearch(isSearch,s.toString());
- }});
- mEditText.setOnFocusChangeListener(new OnFocusChangeListener(){
- public void onFocusChange(View v, boolean hasFocus) {
- if (!firstFocusChange) {
- firstFocusChange = true;
- if (mListener != null) {
- mListener.getFirstFocus();
- }
- Animation ca =new ScaleAnimation(1.0f,0.8f,1.0f,1.0f);
- ca.setFillAfter(true);
- ca.setDuration(300);
- mBackground.startAnimation(ca);
- }
- }});
- mEditText.setBackgroundColor(0);
- mEditText.setMaxWidth(240);
- mEditText.setMinWidth(240);
- mEditText.setMaxLines(1);
- mEditText.setMinLines(1);
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