android numberpicker用于浮点数

Question

我们的应用程序的用户应该能够调整浮点数.目前,我在ArrayAdapter中填充了所有可能的值并将其附加到微调器上.

这个解决方案并不能满足我们的期望,因为旋转器下拉框太高了.有没有更好的办法？我在看Numberpicker - 但这似乎只适用于Integer值.

有任何想法吗？

谢谢!

Answer 1

NumberPicker不只是整数..甚至你可以使用Floats String等.

看到这个并阅读它.

用于教程:

• http://gafurbabu.wordpress.com/2012/03/29/android-number-picker-dialog/

我NumberPicker很久以前就像这样使用过,可能会在这里发布一些用法:

    NumberPicker np;
    String nums[]= {"Select Fraction","1/64","1/32","3/64","1/16","5/64","3/32","7/64","1/8","9/64","5/32","11/64","3/16","13/64","7/32","15/64","1/4","17/64","9/32","19/64","5/16","21/64","11/32","23/64","3/8","25/64","13/32","27/64","7/16","29/64"};

            np = (NumberPicker) findViewById(R.id.np);

            np.setMaxValue(nums.length-1);
            np.setMinValue(0);
            np.setWrapSelectorWheel(false);
            np.setDisplayedValues(nums);
            np.setDescendantFocusability(NumberPicker.FOCUS_BLOCK_DESCENDANTS); 

您可以创建ArrayList任何数据类型并分配它.