Android:如何通过右侧的十字按钮清除 EditText

Question

我为搜索创建了一个 EditText，它的左侧包含一个搜索图标，右侧包含一个搜索图标:

<EditText
    android:id="@+id/Search"
    android:layout_width="250dp"
    android:layout_height="wrap_content"
    android:drawableLeft="@android:drawable/ic_menu_search"
    android:drawableRight="@android:drawable/ic_delete"
    android:hint="Search Product .." >
</EditText>

我想知道如何在点击十字按钮时清除EditText的内容。

提前谢谢你。

Answer 1

@aristo_sh 来自 Handling click events on a drawable within an EditText 的改进答案

    mQueryEditText.setOnTouchListener(new OnTouchListener() {
        final int DRAWABLE_LEFT = 0;
        final int DRAWABLE_TOP = 1;
        final int DRAWABLE_RIGHT = 2;
        final int DRAWABLE_BOTTOM = 3;
        @Override
        public boolean onTouch(View v, MotionEvent event) {
            if (event.getAction() == MotionEvent.ACTION_UP) {
                int leftEdgeOfRightDrawable = mQueryEditText.getRight() 
                      - mQueryEditText.getCompoundDrawables()[DRAWABLE_RIGHT].getBounds().width();
                // when EditBox has padding, adjust leftEdge like
                // leftEdgeOfRightDrawable -= getResources().getDimension(R.dimen.edittext_padding_left_right);
                if (event.getRawX() >= leftEdgeOfRightDrawable) {
                    // clicked on clear icon
                    mQueryEditText.setText("");
                    return true;
                }
            }
            return false;
        }
    });