效果图:只能输入数字,并且第一位不能是小数点,如果第一位是小数点则默认在小数点前加0,且精确到小数点第二位,0.01
实现代码如下:
一、先看下布局代码:
<com.wallet.newnetclient.views.MoneyEditTextandroid:inputType="number"android:textCursorDrawable="@null"android:maxLength="12"android:id="@+id/et_at_trad_money"android:hint=""android:background="@null"android:layout_gravity="center_vertical"android:textColor="@color/n_0_0_0"android:textSize="24sp"android:layout_width="match_parent"android:layout_height="wrap_content" />
此时注意:在这里设置editText的maxLength=“12”的属性不起作用,是现在不了输入字符的最大长度的。
解决方案:在代码中设置editText的过滤器。
privateMoneyEditTextetTradMoney;
etTradMoney.setFilters(newInputFilter[]{newInputFilter.LengthFilter(12)});//即限定最大输入字符数为20
二、代码如下:
package com.haiyangyin.views;import android.content.Context;import android.text.Editable;import android.text.InputType;import android.text.TextUtils;import android.text.TextWatcher;import android.util.AttributeSet;import android.widget.EditText;/*** Created by yinhaiyang on /4/21.* 自定义可输入金额的EditText(仿微信输入框效果)*/public class MoneyEditText extends EditText {private static final String TAG = "MoneyEditText";private boolean textChange;public MoneyEditText(Context context) {this(context, null);}public MoneyEditText(Context context, AttributeSet attrs) {this(context, attrs, 0);}public MoneyEditText(Context context, AttributeSet attrs, int defStyleAttr) {super(context, attrs, defStyleAttr);//设置可以输入小数setInputType(InputType.TYPE_CLASS_NUMBER | InputType.TYPE_NUMBER_FLAG_DECIMAL);setFocusable(true);setFocusableInTouchMode(true);//监听文字变化addTextChangedListener(new TextWatcher() {@Overridepublic void onTextChanged(CharSequence s, int start, int before, int count) {}@Overridepublic void beforeTextChanged(CharSequence s, int start, int count,int after) {}@Overridepublic void afterTextChanged(Editable s) {if (!textChange) {restrictText();}textChange = false;}});}/*** 将小数限制为2位*/private void restrictText() {String input = getText().toString();if (TextUtils.isEmpty(input)) {return;}if (input.contains(".")) {int pointIndex = input.indexOf(".");int totalLenth = input.length();int len = (totalLenth - 1) - pointIndex;if (len > 2) {input = input.substring(0, totalLenth - 1);textChange = true;setText(input);setSelection(input.length());}}if (input.toString().trim().substring(0).equals(".")) {input = "0" + input;setText(input);setSelection(2);}}/*** 获取金额*/public String getMoneyText() {String money = getText().toString();//如果最后一位是小数点if (money.endsWith(".")) {return money.substring(0, money.length() - 1);}return money;}}
方式二:参考博客点击打开链接
/article/99359.htm