Android实现带有删除按钮的EditText示例代码

public class EditTextWithDel extends EditText { private final static String TAG = "EditTextWithDel"; private Drawable imgInable; private Context mContext; public EditTextWithDel(Context context) {  this(context, null, 0); } public EditTextWithDel(Context context, AttributeSet attrs) {  this(context, attrs, 0); } public EditTextWithDel(Context context, AttributeSet attrs, int defStyleAttr) {  super(context, attrs, defStyleAttr);  mContext = context;  init(); } private void init() {  imgInable = mContext.getResources().getDrawable(android.R.drawable.ic_delete);  addTextChangedListener(new TextWatcher() {   @Override   public void beforeTextChanged(CharSequence charSequence, int i, int i1, int i2) {   }   @Override   public void onTextChanged(CharSequence charSequence, int i, int i1, int i2) {   }   @Override   public void afterTextChanged(Editable editable) {    setDrawable();   }  });  setDrawable(); } // 设置删除图片 private void setDrawable() {  if (length() < 1) {   setCompoundDrawablesWithIntrinsicBounds(null, null, null, null);  } else {   setCompoundDrawablesWithIntrinsicBounds(null, null, imgInable, null);  } } // 处理删除操作 @Override public boolean onTouchEvent(MotionEvent event) {  if (imgInable != null && event.getAction() == MotionEvent.ACTION_UP) {   int eventX = (int) event.getRawX();   int eventY = (int) event.getRawY();   Log.d(TAG, "(" + eventX + ", " + eventY + ")");   Rect rect = new Rect();   getGlobalVisibleRect(rect);   rect.left = rect.right - 70;   Log.d(TAG, rect.toString());   if (rect.contains(eventX, eventY)) {    setText("");   }  }  return super.onTouchEvent(event); } @Override protected void finalize() throws Throwable {  super.finalize(); }}