代码改变世界

EditText输入框实现最多到小数点后两位(金额显示)

package com.lianpos.util;

import android.text.Editable;

import android.text.TextWatcher;

import android.widget.EditText;

/**

* Created by wangshuai on 2017/11/29 0029.

*/

public class MoneyEditText {

public static void setPricePoint(final EditText editText) {

editText.addTextChangedListener(new TextWatcher() {

@Override

public void onTextChanged(CharSequence s, int start, int before,

int count) {

if (s.toString().contains(".")) {

if (s.length() - 1 - s.toString().indexOf(".") > 2) {

s = s.toString().subSequence(0,

s.toString().indexOf(".") + 3);

editText.setText(s);

editText.setSelection(s.length());

}

}

if (s.toString().trim().substring(0).equals(".")) {

s = "0" + s;

editText.setText(s);

editText.setSelection(2);

}

if (s.toString().startsWith("0") && s.toString().trim().length() > 1) {

if (!s.toString().substring(1, 2).equals(".")) {

editText.setText(s.subSequence(0, 1));

editText.setSelection(1);

return;

}

}

}

@Override

public void beforeTextChanged(CharSequence s, int start, int count, int after) {

}

@Override

public void afterTextChanged(Editable s) {

// TODO Auto-generated method stub

}

});

}

}

使用方法：

MoneyEditText.setPricePoint(number_unit_edit);

number_unit_edit是edittext，如下：

android:id="@+id/number_unit_edit"

android:layout_width="100dp"

android:layout_height="wrap_content"

android:layout_alignParentRight="true"

android:background="@null"

android:gravity="right"

android:hint="0.00"

android:maxLength="7"

android:inputType="numberDecimal"

android:padding="15dp"

android:textColor="#333333"

android:textSize="16dp" />