Android自己定义NumberPicker

在项目中使用要使用滑轮来选择时间，而android系统自带的NumberPicker样式和需求不一样，而且颜色默认的是蓝色的，字体只能为黑色，上下只能显示1个，效果如下图：

	这样子满足不了我们的需求，但是大体功能还是和我们需求一样的，只是外貌不是我们想要的。我在网上看过一些资料后，和一些开源的项目，最终还是决定从numberPicker的源码下手，修改一些属性，以满足需求。经过一番修改后达到我们想要的结果，用一个小的demo作为演示，效果如下：

	点击这里下载

	大家可以看到在自定义的NumberPicker上显示的效果与原来的不一样，首先，线条不再为蓝色，可以自定义线条的颜色，中间的字体大小和颜色也可以根据自己的要求变更颜色，上下显示的个数，也可自己制定。

	首先，简单介绍一下这个demo，这是一个简单个人信息的填写的demo，隐藏原来的软键盘，下面使用到了一个PopupWindow，在PopupWindow中添加两个控件：1、自定义的NumberPicker。2、自定义的数字键盘。

	接下来，先看一下我的项目结构，我在这里使用的Android Studio，会和使用Eclipse的朋友结构会有所不一样

	大家可以看到项目中只有3个类，NumberPicker和Scroller都是从源码中直接复制过来，只是修改了NumberPicker中的一些代码，和drawable中的一些样式，就可以达到修改NumberPicker的外观。大家使用NumberPicker时一定要将values中和drawable中的样式复制完全，不然程序会报错。

	然后介绍一下布局文件：

    
    
    
    
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    android:background="#f4f5f3">

    <include
        android:layout_height="wrap_content"
        android:layout_width="match_parent"
        layout="@layout/title"
        android:id="@+id/Title" />

    <ScrollView
        android:id="@+id/scrollView"
        android:layout_width="match_parent"
        android:layout_height="wrap_content">

        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:background="#ffffff"
            android:focusable="true"
            android:focusableInTouchMode="true"
            android:orientation="vertical">

            <TextView
                android:layout_width="match_parent"
                android:layout_height="1dp"
                android:layout_marginTop="20dp"
                android:background="#8033b5e5" />

            <LinearLayout
                android:layout_width="match_parent"
                android:layout_height="45dp"
                android:orientation="horizontal"
                android:layout_marginLeft="15dp"
                android:layout_marginRight="15dp"
                android:gravity="center">

                <TextView
                    android:layout_width="wrap_content"
                    android:layout_height="match_parent"
                    android:gravity="center"
                    android:text="性别"
                    android:textSize="20sp"
                    android:textColor="#90000000" />

                <EditText
                    android:textCursorDrawable="@null"
                    android:id="@+id/edit_sex"
                    android:layout_width="0dp"
                    android:layout_weight="1"
                    android:layout_height="match_parent"
                    android:background="#ffffff"
                    android:text="男"
                    android:gravity="center_vertical|right"
                    android:textColor="#33b5e5"
                    android:textSize="20sp" />
            LinearLayout>

            <TextView
                android:layout_width="match_parent"
                android:layout_height="1dp"
                android:layout_marginLeft="15dp"
                android:layout_marginRight="15dp"
                android:background="#8033b5e5" />

            <LinearLayout
                android:layout_width="match_parent"
                android:layout_height="45dp"
                android:orientation="horizontal"
                android:layout_marginLeft="15dp"
                android:layout_marginRight="15dp"
                android:gravity="center">

                <TextView
                    android:layout_width="wrap_content"
                    android:layout_height="match_parent"
                    android:gravity="center"
                    android:text="出生年份"
                    android:textSize="20sp"
                    android:textColor="#90000000" />

                <EditText
                    android:textCursorDrawable="@null"
                    android:id="@+id/edit_birthday"
                    android:layout_width="0dp"
                    android:layout_weight="1"
                    android:layout_height="match_parent"
                    android:background="#ffffff"
                    android:text="1990"
                    android:gravity="center_vertical|right"
                    android:textColor="#33b5e5"
                    android:textSize="20sp" />
            LinearLayout>

            <TextView
                android:layout_width="match_parent"
                android:layout_height="1dp"
                android:layout_marginLeft="15dp"
                android:layout_marginRight="15dp"
                android:background="#8033b5e5" />

            <LinearLayout
                android:layout_width="match_parent"
                android:layout_height="45dp"
                android:orientation="horizontal"
                android:layout_marginLeft="15dp"
                android:layout_marginRight="15dp"
                android:gravity="center">

                <TextView
                    android:layout_width="wrap_content"
                    android:layout_height="match_parent"
                    android:gravity="center"
                    android:text="体重"
                    android:textSize="20sp"
                    android:textColor="#90000000" />

                <EditText
                    android:textCursorDrawable="@null"
                    android:id="@+id/edit_weight"
                    android:layout_width="0dp"
                    android:layout_weight="1"
                    android:layout_height="match_parent"
                    android:background="#ffffff"
                    android:text="50 kg"
                    android:gravity="center_vertical|right"
                    android:textColor="#33b5e5"
                    android:textSize="20sp" />
            LinearLayout>

            <TextView
                android:layout_width="match_parent"
                android:layout_height="1dp"
                android:layout_marginLeft="15dp"
                android:layout_marginRight="15dp"
                android:background="#8033b5e5" />

            <LinearLayout
                android:layout_width="match_parent"
                android:layout_height="45dp"
                android:orientation="horizontal"
                android:layout_marginLeft="15dp"
                android:layout_marginRight="15dp"
                android:gravity="center">

                <TextView
                    android:layout_width="wrap_content"
                    android:layout_height="match_parent"
                    android:gravity="center"
                    android:text="身高"
                    android:textSize="20sp"
                    android:textColor="#90000000" />

                <EditText
                    android:textCursorDrawable="@null"
                    android:id="@+id/edit_height"
                    android:layout_width="0dp"
                    android:layout_weight="1"
                    android:layout_height="match_parent"
                    android:background="#ffffff"
                    android:text="175 cm"
                    android:gravity="center_vertical|right"
                    android:textColor="#33b5e5"
                    android:textSize="20sp" />
            LinearLayout>

            <TextView
                android:layout_width="match_parent"
                android:layout_height="1dp"
                android:layout_marginLeft="15dp"
                android:layout_marginRight="15dp"
                android:background="#8033b5e5" />

            <LinearLayout
                android:layout_width="match_parent"
                android:layout_height="45dp"
                android:orientation="horizontal"
                android:layout_marginLeft="15dp"
                android:layout_marginRight="15dp"
                android:gravity="center">

                <TextView
                    android:layout_width="wrap_content"
                    android:layout_height="match_parent"
                    android:gravity="center"
                    android:text="步长"
                    android:textSize="20sp"
                    android:textColor="#90000000" />

                <EditText
                    android:textCursorDrawable="@null"
                    android:id="@+id/edit_step"
                    android:layout_width="0dp"
                    android:layout_weight="1"
                    android:layout_height="match_parent"
                    android:background="#ffffff"
                    android:text="45 cm"
                    android:gravity="center_vertical|right"
                    android:textColor="#33b5e5"
                    android:textSize="20sp" />
            LinearLayout>

            <TextView
                android:layout_width="match_parent"
                android:layout_height="1dp"
                android:layout_marginLeft="15dp"
                android:layout_marginRight="15dp"
                android:background="#8033b5e5" />

            <LinearLayout
                android:layout_width="match_parent"
                android:layout_height="45dp"
                android:orientation="horizontal"
                android:layout_marginLeft="15dp"
                android:layout_marginRight="15dp"
                android:gravity="center">

                <TextView
                    android:layout_width="wrap_content"
                    android:layout_height="match_parent"
                    android:gravity="center"
                    android:text="敏感度"
                    android:textSize="20sp"
                    android:textColor="#90000000" />

                <EditText
                    android:textCursorDrawable="@null"
                    android:id="@+id/edit_sensitive"
                    android:layout_width="0dp"
                    android:layout_weight="1"
                    android:layout_height="match_parent"
                    android:background="#ffffff"
                    android:text="5"
                    android:gravity="center_vertical|right"
                    android:textColor="#33b5e5"
                    android:textSize="20sp" />
            LinearLayout>

            <TextView
                android:layout_width="match_parent"
                android:layout_height="1dp"
                android:background="#8033b5e5" />

        LinearLayout>


    ScrollView>


LinearLayout>
	接下来时PopupWindow的布局文件：

    
    
    
    
xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="#00f4f5f3">

    <RelativeLayout
        android:layout_width="match_parent"
        android:layout_height="50dp"
        android:background="#ffffff"
        android:layout_above="@+id/linearLayout"
        android:orientation="horizontal">

        <Button
            android:id="@+id/last"
            android:layout_width="80dp"
            android:layout_height="match_parent"
            android:text="上一个"
            android:textSize="18sp"
            android:gravity="center"
            android:background="#00ffffff"
            android:textColor="#000000"
            android:clickable="true" />

        <Button
            android:id="@+id/next"
            android:layout_width="80dp"
            android:layout_height="match_parent"
            android:layout_toRightOf="@+id/last"
            android:gravity="center"
            android:text="下一个"
            android:textSize="18sp"
            android:background="#00ffffff"
            android:textColor="#000000"
            android:clickable="true" />

        <Button
            android:id="@+id/done"
            android:layout_width="80dp"
            android:layout_height="match_parent"
            android:layout_alignParentRight="true"
            android:gravity="center"
            android:layout_marginRight="10dp"
            android:text="完成"
            android:textSize="18sp"
            android:background="#00ffffff"
            android:textColor="#000000"
            android:clickable="true" />
    RelativeLayout>

    <LinearLayout
        android:id="@+id/linearLayout"
        android:layout_width="match_parent"
        android:layout_alignParentBottom="true"
        android:layout_height="285dp"
        android:orientation="vertical">

        <com.example.liyachao.informationset.NumberPicker
            android:id="@+id/numberpicker"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:background="#ffffff"
            android:visibility="gone">

        com.example.liyachao.informationset.NumberPicker>

        <com.example.liyachao.informationset.NumberPicker
            android:id="@+id/numberpicker1"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:background="#ffffff"
            android:visibility="gone">

        com.example.liyachao.informationset.NumberPicker>

        <TableLayout
            android:id="@+id/tableLayout"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:visibility="visible">

            <TableRow>

                <TextView
                    android:id="@+id/number_1"
                    android:layout_width="0dp"
                    android:layout_height="70dp"
                    android:layout_weight="1"
                    android:gravity="center"
                    android:text="1"
                    android:textColor="#808080"
                    android:background="@drawable/number_bg"
                    android:textSize="30sp" />

                <TextView
                    android:id="@+id/number_2"
                    android:layout_width="0dp"
                    android:layout_height="70dp"
                    android:layout_weight="1"
                    android:gravity="center"
                    android:text="2"
                    android:textColor="#808080"
                    android:background="@drawable/number_bg"
                    android:textSize="30sp" />

                <TextView
                    android:id="@+id/number_3"
                    android:layout_width="0dp"
                    android:layout_height="70dp"
                    android:layout_weight="1"
                    android:gravity="center"
                    android:text="3"
                    android:textColor="#808080"
                    android:background="@drawable/number_bg"
                    android:textSize="30sp" />
            TableRow>

            <TableRow>

                <TextView
                    android:id="@+id/number_4"
                    android:layout_width="0dp"
                    android:layout_height="70dp"
                    android:layout_weight="1"
                    android:gravity="center"
                    android:text="4"
                    android:textColor="#808080"
                    android:background="@drawable/number_bg"
                    android:textSize="30sp" />

                <TextView
                    android:id="@+id/number_5"
                    android:layout_width="0dp"
                    android:layout_height="70dp"
                    android:layout_weight="1"
                    android:gravity="center"
                    android:text="5"
                    android:textColor="#808080"
                    android:background="@drawable/number_bg"
                    android:textSize="30sp" />

                <TextView
                    android:id="@+id/number_6"
                    android:layout_width="0dp"
                    android:layout_height="70dp"
                    android:layout_weight="1"
                    android:gravity="center"
                    android:text="6"
                    android:textColor="#808080"
                    android:background="@drawable/number_bg"
                    android:textSize="30sp" />
            TableRow>

            <TableRow>

                <TextView
                    android:id="@+id/number_7"
                    android:layout_width="0dp"
                    android:layout_height="70dp"
                    android:layout_weight="1"
                    android:gravity="center"
                    android:text="7"
                    android:textColor="#808080"
                    android:background="@drawable/number_bg"
                    android:textSize="30sp" />

                <TextView
                    android:id="@+id/number_8"
                    android:layout_width="0dp"
                    android:layout_height="70dp"
                    android:layout_weight="1"
                    android:gravity="center"
                    android:text="8"
                    android:textColor="#808080"
                    android:background="@drawable/number_bg"
                    android:textSize="30sp" />

                <TextView
                    android:id="@+id/number_9"
                    android:layout_width="0dp"
                    android:layout_height="70dp"
                    android:layout_weight="1"
                    android:gravity="center"
                    android:text="9"
                    android:textColor="#808080"
                    android:background="@drawable/number_bg"
                    android:textSize="30sp" />
            TableRow>

            <TableRow>

                <TextView
                    android:id="@+id/number_"
                    android:layout_width="0dp"
                    android:layout_height="70dp"
                    android:layout_weight="1"
                    android:gravity="center"
                    android:text="."
                    android:textColor="#808080"
                    android:background="@drawable/number_bg"
                    android:textSize="30sp" />

                <TextView
                    android:id="@+id/number_0"
                    android:layout_width="0dp"
                    android:layout_height="70dp"
                    android:layout_weight="1"
                    android:gravity="center"
                    android:text="0"
                    android:textColor="#808080"
                    android:background="@drawable/number_bg"
                    android:textSize="30sp" />

                <TextView
                    android:id="@+id/number_reduce"
                    android:layout_height="70dp"
                    android:layout_width="0dp"
                    android:layout_weight="1"
                    android:gravity="center"
                    android:text="删除"
                    android:textColor="#808080"
                    android:background="@drawable/number_bg"
                    android:textSize="30sp" />
            TableRow>

        TableLayout>
    LinearLayout>
RelativeLayout>
	然后就是MainActivity的代码：

     
     
     
     
package com.example.liyachao.informationset;

import android.app.Activity;
import android.os.Bundle;
import android.text.InputType;
import android.util.Log;
import android.view.Gravity;
import android.view.LayoutInflater;
import android.view.MotionEvent;
import android.view.View;
import android.view.ViewGroup;
import android.view.WindowManager;
import android.widget.Button;
import android.widget.EditText;
import android.widget.PopupWindow;
import android.widget.ScrollView;
import android.widget.TableLayout;
import android.widget.TextView;

import java.lang.reflect.Method;
import java.util.ArrayList;
import java.util.List;


public class MainActivity extends Activity {

    private PopupWindow pw;
    private List editTexts;
    private View view;
    private ScrollView scrollView;
    ViewGroup.LayoutParams layoutParams;

    private Button pw_btn_done, pw_btn_last, pw_btn_next;
    private EditText sex;
    private EditText birth;
    private EditText weight;
    private EditText height;
    private EditText step;
    private EditText sensitive;

    private TextView one, two, three, four, five, six,
            seven, eight, nine, zero, delete, point;
    private List number;
    private String myNumber = "";

    private NumberPicker numberPicker, sexPicker;
    private TableLayout tableLayout;

    private String sexStr;
    private String birthStr = "1990";
    private String weightStr = "50 kg";
    private String heightStr = "175 cm";
    private String stepStr = "35 cm";
    private String sensitiveStr = "5";

    private String strValue[] = {sexStr, birthStr, weightStr, heightStr, stepStr, sensitiveStr};

    private String str[] = new String[]{"男", "女"};


    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        scrollView = (ScrollView) findViewById(R.id.scrollView);
        view = LayoutInflater.from(this).inflate(R.layout.pwpupwindow, null);
        layoutParams = scrollView.getLayoutParams();
        editTexts = new ArrayList();
        initView();
        setPWView();
        setListener();
    }

    /**
     * 这只监听事件
     */
    private void setListener() {

        for (int i = 0; i < editTexts.size(); i++) {
            editTexts.get(i).setOnFocusChangeListener(new myFocusChangeListener());
        }

        pw_btn_done.setOnClickListener(new myClickListener());
        pw_btn_next.setOnClickListener(new myClickListener());
        pw_btn_last.setOnClickListener(new myClickListener());

        numberPicker.setOnValueChangedListener(new NumberPicker.OnValueChangeListener() {
            @Override
            public void onValueChange(NumberPicker picker, int oldVal, int newVal, EditText editText) {
                for (int i = 0; i < editTexts.size(); i++) {
                    if (editTexts.get(i).isFocused()) {
                        editTexts.get(i).setText(picker.getValue() + "");
                        editTexts.get(i).setSelection(editTexts.get(i).getText().length());
                        strValue[i] = picker.getValue() + "";
                        break;
                    }
                }
            }
        });
        sexPicker.setOnValueChangedListener(new NumberPicker.OnValueChangeListener() {
            @Override
            public void onValueChange(NumberPicker picker, int oldVal, int newVal, EditText editText) {
                sex.setText(str[picker.getValue()]);
                sex.setSelection(str[picker.getValue()].length());
                strValue[0] = str[picker.getValue()];
            }
        });
    }

    /**
     * 初始化popupwindow中的控件
     */
    private void setPWView() {

        number = new ArrayList();
        pw = new PopupWindow(view, WindowManager.LayoutParams.MATCH_PARENT,
                dp2px(350));
        pw_btn_done = (Button) view.findViewById(R.id.done);
        pw_btn_last = (Button) view.findViewById(R.id.last);
        pw_btn_next = (Button) view.findViewById(R.id.next);
        numberPicker = (NumberPicker) view.findViewById(R.id.numberpicker);
        tableLayout = (TableLayout) view.findViewById(R.id.tableLayout);

        one = (TextView) view.findViewById(R.id.number_1);
        number.add(one);
        two = (TextView) view.findViewById(R.id.number_2);
        number.add(two);
        three = (TextView) view.findViewById(R.id.number_3);
        number.add(three);
        four = (TextView) view.findViewById(R.id.number_4);
        number.add(four);
        five = (TextView) view.findViewById(R.id.number_5);
        number.add(five);
        six = (TextView) view.findViewById(R.id.number_6);
        number.add(six);
        seven = (TextView) view.findViewById(R.id.number_7);
        number.add(seven);
        eight = (TextView) view.findViewById(R.id.number_8);
        number.add(eight);
        nine = (TextView) view.findViewById(R.id.number_9);
        number.add(nine);
        zero = (TextView) view.findViewById(R.id.number_0);
        number.add(zero);
        point = (TextView) view.findViewById(R.id.number_);
        number.add(point);
        delete = (TextView) view.findViewById(R.id.number_reduce);
        number.add(delete);

        for (int i = 0; i < number.size(); i++) {
            number.get(i).setOnClickListener(new NumberListener());
        }


        sexPicker = (NumberPicker) view.findViewById(R.id.numberpicker1);
        numberPicker.setWrapSelectorWheel(false);

    }

    /**
     * 给自定义的数字键盘设置点击事件
     */
    private class NumberListener implements View.OnClickListener {

        @Override
        public void onClick(View v) {
            switch (v.getId()) {
                case R.id.number_0:
                    myNumber += "0";
                    break;
                case R.id.number_1:
                    myNumber += "1";
                    break;
                case R.id.number_2:
                    myNumber += "2";
                    break;
                case R.id.number_3:
                    myNumber += "3";
                    break;
                case R.id.number_4:
                    myNumber += "4";
                    break;
                case R.id.number_5:
                    myNumber += "5";
                    break;
                case R.id.number_6:
                    myNumber += "6";
                    break;
                case R.id.number_7:
                    myNumber += "7";
                    break;
                case R.id.number_8:
                    myNumber += "8";
                    break;
                case R.id.number_9:
                    myNumber += "9";
                    break;
                case R.id.number_:
                    myNumber += ".";
                    break;
                case R.id.number_reduce:
                    myNumber = myNumber.substring(0, myNumber.length() - 1);
                    break;
            }

            for (int i = 0; i < editTexts.size(); i++) {
                if (editTexts.get(i).isFocused()) {
                    String str = strValue[i].substring(strValue[i].length() - 3, strValue[i].length());
                    Log.i("tag", strValue[i]);
                    editTexts.get(i).setText(myNumber + str);
                    editTexts.get(i).setSelection(myNumber.length());
                    break;
                }
            }
        }
    }

    private class myFocusChangeListener implements View.OnFocusChangeListener {
        @Override
        public void onFocusChange(View v, boolean hasFocus) {
            switch (v.getId()) {
                case R.id.edit_sex:
                    sexStr = sex.getText().toString().trim();
                    if (hasFocus) {
                        tableLayout.setVisibility(View.GONE);
                        sexPicker.setVisibility(View.VISIBLE);
                        numberPicker.setVisibility(View.GONE);
                        sexPicker.setWrapSelectorWheel(false);
                        sexPicker.setMaxValue(1);
                        sexPicker.setMinValue(0);
                        sexPicker.setDisplayedValues(str);
                        sex.setCursorVisible(true);
                        sex.setSelection(1);
                    } else {
                        sex.setText(str[sexPicker.getValue()]);
                    }
                    break;
                case R.id.edit_birthday:
                    if (hasFocus) {
                        tableLayout.setVisibility(View.GONE);
                        numberPicker.setVisibility(View.VISIBLE);
                        sexPicker.setVisibility(View.GONE);
                        numberPicker.setValue(Integer.parseInt(strValue[1]));
                        numberPicker.setMaxValue(2015);
                        numberPicker.setMinValue(1970);
                        birth.setSelection(4);

                    } else {
                        birth.setText(strValue[1]);
                    }
                    break;
                case R.id.edit_weight:
                    if (hasFocus) {
                        tableLayout.setVisibility(View.VISIBLE);
                        numberPicker.setVisibility(View.GONE);
                        sexPicker.setVisibility(View.GONE);
                        weight.setText(" kg");
                    } else {
                        weight.setText(myNumber + " kg");
                        myNumber = "";
                    }
                    break;
                case R.id.edit_height:
                    if (hasFocus) {
                        tableLayout.setVisibility(View.VISIBLE);
                        numberPicker.setVisibility(View.GONE);
                        sexPicker.setVisibility(View.GONE);
                        height.setText(" cm");
                    } else {
                        height.setText(myNumber + " cm");
                        myNumber = "";
                    }
                    break;
                case R.id.edit_step:
                    if (hasFocus) {
                        tableLayout.setVisibility(View.VISIBLE);
                        numberPicker.setVisibility(View.GONE);
                        sexPicker.setVisibility(View.GONE);
                        step.setText(" cm");
                    } else {
                        step.setText(myNumber + " cm");
                        myNumber = "";
                    }
                    break;
                case R.id.edit_sensitive:
                    if (hasFocus) {
                        tableLayout.setVisibility(View.GONE);
                        numberPicker.setVisibility(View.VISIBLE);
                        sexPicker.setVisibility(View.GONE);

                        numberPicker.setValue(Integer.parseInt(strValue[5]));
                        numberPicker.setMaxValue(10);
                        numberPicker.setMinValue(1);
                        sensitive.setText(sensitiveStr);
                        sensitive.setSelection(sensitiveStr.length());
                    } else {
                        sensitive.setText(strValue[5]);
                    }
                    break;
            }
        }
    }

    private class myClickListener implements View.OnClickListener {
        @Override
        public void onClick(View v) {
            switch (v.getId()) {
                case R.id.done:
                    layoutParams.height = WindowManager.LayoutParams.WRAP_CONTENT;
                    scrollView.setLayoutParams(layoutParams);
                    pw.dismiss();
                    break;
                case R.id.last:
                    for (int i = 0; i < editTexts.size(); i++) {
                        if (editTexts.get(i).isFocused() && i != 0) {
                            editTexts.get(i).clearFocus();
                            editTexts.get(i - 1).requestFocus();
                            break;
                        }
                    }
                    break;
                case R.id.next:
                    for (int i = 0; i < editTexts.size(); i++) {
                        if (editTexts.get(i).isFocused() && i != (editTexts.size() - 1)) {
                            editTexts.get(i).clearFocus();
                            editTexts.get(i + 1).requestFocus();
                            break;
                        }
                    }

                    break;
            }
        }
    }


    private int dp2px(float value) {
        float v = getResources().getDisplayMetrics().density;
        return (int) (v * value + 0.5f);
    }


    private void initView() {

        sex = (EditText) findViewById(R.id.edit_sex);
        birth = (EditText) findViewById(R.id.edit_birthday);
        weight = (EditText) findViewById(R.id.edit_weight);
        height = (EditText) findViewById(R.id.edit_height);
        step = (EditText) findViewById(R.id.edit_step);
        sensitive = (EditText) findViewById(R.id.edit_sensitive);
        editTexts.add(sex);
        editTexts.add(birth);
        editTexts.add(weight);
        editTexts.add(height);
        editTexts.add(step);
        editTexts.add(sensitive);
        for (int i = 0; i < editTexts.size(); i++) {
            hideSoftInputMethod(editTexts.get(i));
            editTexts.get(i).setOnTouchListener(new View.OnTouchListener() {
                @Override
                public boolean onTouch(View v, MotionEvent event) {
                    if (pw.isShowing()) {
                        layoutParams.height = dp2px(200);
                        scrollView.setLayoutParams(layoutParams);
                    } else {
                        pw.showAtLocation(view, Gravity.BOTTOM, 0, 0);
                    }
                    return false;
                }
            });
        }
    }


    /**
     * 一直隐藏软键盘
     *
     * @param ed
     */
    public void hideSoftInputMethod(EditText ed) {
        getWindow().setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_STATE_ALWAYS_HIDDEN);
        int currentVersion = android.os.Build.VERSION.SDK_INT;
        String methodName = null;
        if (currentVersion >= 16) {
            // 4.2
            methodName = "setShowSoftInputOnFocus";
        } else if (currentVersion >= 14) {
            // 4.0
            methodName = "setSoftInputShownOnFocus";
        }
        if (methodName == null) {
            ed.setInputType(InputType.TYPE_NULL);
        } else {
            Class cls = EditText.class;
            Method setShowSoftInputOnFocus;
            try {
                setShowSoftInputOnFocus = cls.getMethod(methodName, boolean.class);
                setShowSoftInputOnFocus.setAccessible(true);
                setShowSoftInputOnFocus.invoke(ed, false);
            } catch (Exception e) {
                ed.setInputType(InputType.TYPE_NULL);
                e.printStackTrace();
            }
        }
    }


}
	NumberPicker代码太长就不贴出来了，感兴趣的朋友可以下载下来研究研究。