- private void hookClearClickListener(AutoCompleteTextView v) {
- final TextWatcher w = new TextWatcher() {
- private boolean hasText;
- private boolean hadText;
- @Override
- public void beforeTextChanged(CharSequence s, int start, int count, int after) {
- hadText = s.length() > 0;
- }
- @Override
- public void onTextChanged(CharSequence s, int start, int before, int count) {
-
- }
- @Override
- public void afterTextChanged(Editable s) {
- hasText = s.length() > 0;
-
- if (hadText && !hasText) {
- v.setCompoundDrawablesRelative(null, null, null, null);
- }
- if (!hadText && hasText) {
- v.setCompoundDrawablesRelativeWithIntrinsicBounds(0, 0,
- R.drawable.ic_clear_black_24dp, 0);
- }
- }
- };
- View.OnFocusChangeListener prevFocusListener = v.getOnFocusChangeListener();
- v.setOnFocusChangeListener((v12, hasFocus) -> {
- if (hasFocus) {
- if (((TextView) v12).getText().length() > 0) {
- ((TextView) v12).setCompoundDrawablesRelativeWithIntrinsicBounds(0, 0,
- R.drawable.ic_clear_black_24dp, 0);
- }
- ((TextView) v12).addTextChangedListener(w);
- }
- else {
- ((TextView) v12).removeTextChangedListener(w);
- ((TextView) v12).setCompoundDrawables(null, null, null, null);
- }
-
- if (prevFocusListener != null) prevFocusListener.onFocusChange(v12, hasFocus);
- });
-
- v.setOnTouchListener((v1, event) -> {
- if (event.getAction() == MotionEvent.ACTION_UP)
- if (((TextView) v1).getText().length() > 0) {
- boolean clearClicked = false;
- final float x = event.getX();
- final int vw = v1.getWidth();
- // start, top, end, bottom (end == 2)
- Drawable dwb = ((TextView) v1).getCompoundDrawablesRelative()[2];
- if (dwb != null) {
- final int dw = dwb.getBounds().width();
- if (v1.getLayoutDirection() == View.LAYOUT_DIRECTION_LTR) {
- if ((x > vw - dw)) clearClicked = true;
- }
- else {
- if (x < vw - dw) clearClicked = true;
- }
- if (clearClicked) {
- ((TextView) v1).setText("");
- v1.requestFocus();
- return true;
- }
- }
- }
- v.performClick();
- return false;
- });
- }