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兑换和提现功能开发

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This commit is contained in:
wushaocheng
2022-11-23 00:23:43 +08:00
parent 7d6412305c
commit 4bd00098f7
14 changed files with 522 additions and 30 deletions
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60
app/src/main/java/com/yizhuan/erban/earn/EarnRecordViewModel.kt
View File

@@ -2,19 +2,34 @@ package com.yizhuan.erban.earn
import androidx.lifecycle.MutableLiveData
import com.yizhuan.erban.base.BaseViewModel
import com.yizhuan.xchat_android_core.earn.bean.ConfigWithdrawInfo
import com.yizhuan.xchat_android_core.earn.bean.EarnRecordInfo
import com.yizhuan.xchat_android_core.earn.bean.GoldToDiamondInfo
import com.yizhuan.xchat_android_core.earn.model.EarnModel
import com.yizhuan.xchat_android_core.utils.toast
class EarnRecordViewModel : BaseViewModel() {
//收益记录
private val _earnRecordLiveData = MutableLiveData<EarnRecordInfo?>()
val earnRecordLiveData: MutableLiveData<EarnRecordInfo?> = _earnRecordLiveData
//金币兑换钻石
private val _goldToDiamondLiveData = MutableLiveData<GoldToDiamondInfo?>()
val goldToDiamondLiveData: MutableLiveData<GoldToDiamondInfo?> = _goldToDiamondLiveData
//金币兑换钻石-确认
private val _exchangeConfirmLiveData = MutableLiveData<String?>()
val exchangeConfirmLiveData: MutableLiveData<String?> = _exchangeConfirmLiveData
//提现界面
private val _getConfigWithdrawLiveData = MutableLiveData<ConfigWithdrawInfo?>()
val getConfigWithdrawLiveData: MutableLiveData<ConfigWithdrawInfo?> = _getConfigWithdrawLiveData
//提现
private val _exchangeLiveData = MutableLiveData<String?>()
val exchangeLiveData: MutableLiveData<String?> = _exchangeLiveData
/**
* 收益记录
*/
@@ -45,4 +60,49 @@ class EarnRecordViewModel : BaseViewModel() {
)
}
/**
* 金币兑换钻石-确认
*/
fun exchangeConfirm(
goldNum: Long,
diamondNum: Long,
currency: Int
) {
safeLaunch(
true,
block = {
_exchangeConfirmLiveData.value =
EarnModel.exchangeConfirm(goldNum, diamondNum, currency)
}
)
}
/**
* 提现界面
*/
fun getConfigWithdraw() {
safeLaunch(
true,
block = {
_getConfigWithdrawLiveData.value = EarnModel.getConfigWithdrawInfo()
}
)
}
/**
* 提现
*/
fun exchange(goldNum: Long, payPwd: String) {
safeLaunch(
true,
onError = {
it.message.toast()
_exchangeLiveData.value = null
},
block = {
_exchangeLiveData.value = EarnModel.exchange(goldNum, payPwd)
}
)
}
}

101
app/src/main/java/com/yizhuan/erban/earn/activity/ConvertDiamondActivity.kt
View File

@@ -4,11 +4,16 @@ import android.content.Context
import android.content.Intent
import android.text.Editable
import android.text.TextWatcher
import androidx.activity.viewModels
import com.netease.nim.uikit.StatusBarUtil
import com.yizhuan.erban.R
import com.yizhuan.erban.base.BaseViewBindingActivity
import com.yizhuan.erban.databinding.ActivityConvertDiamondBinding
import com.yizhuan.erban.earn.EarnRecordViewModel
import com.yizhuan.xchat_android_core.earn.bean.GoldToDiamondInfo
import com.yizhuan.xchat_android_library.common.util.DoubleUtils
import kotlin.math.ceil
import kotlin.math.floor
/**
* author: wushaocheng
@@ -17,6 +22,11 @@ import com.yizhuan.xchat_android_core.earn.bean.GoldToDiamondInfo
*/
class ConvertDiamondActivity : BaseViewBindingActivity<ActivityConvertDiamondBinding>() {
private val earnRecordModel: EarnRecordViewModel by viewModels()
private var isGold = false
private var isDiamond = false
companion object {
const val BEAN = "bean"
@@ -30,13 +40,19 @@ class ConvertDiamondActivity : BaseViewBindingActivity<ActivityConvertDiamondBin
override fun init() {
initTitleBar(getString(R.string.convert_diamond))
val bean: GoldToDiamondInfo = intent.getSerializableExtra(BEAN) as GoldToDiamondInfo
bean.let {
val bean = intent.getSerializableExtra(BEAN) as? GoldToDiamondInfo
bean?.let {
binding.tvMyGold.text = getString(R.string.my_gold, it.golds.toString())
binding.tvMyDiamond.text = getString(R.string.my_diamond, it.diamonds.toString())
binding.edGold.hint = (it.minDiamonds.toDouble() /it.rate).toString()
binding.edGold.hint = it.minGolds.toString()
binding.edDiamond.hint = it.minDiamonds.toString()
binding.edGold.addTextChangedListener(object : TextWatcher{
binding.edGold.setOnFocusChangeListener { view, b ->
isGold = b
}
binding.edDiamond.setOnFocusChangeListener { view, b ->
isDiamond = b
}
binding.edGold.addTextChangedListener(object : TextWatcher {
override fun beforeTextChanged(p0: CharSequence?, p1: Int, p2: Int, p3: Int) {
}
@@ -46,11 +62,30 @@ class ConvertDiamondActivity : BaseViewBindingActivity<ActivityConvertDiamondBin
}
override fun afterTextChanged(s: Editable?) {
if (isGold) {
val goldText = s.toString()
if (goldText.isNotEmpty()) {
binding.edDiamond.setText(
//去掉小数凑整:不论小数是多少，都不进位
DoubleUtils.convertDoubleToString(
floor(
DoubleUtils.mul(
goldText.toDouble(),
it.rate
)
)
)
)
} else {
binding.edDiamond.setText("")
}
}
binding.tvConvert.isEnabled = binding.edGold.text.toString()
.isNotEmpty() && binding.edDiamond.text.toString().isNotEmpty()
}
})
binding.edDiamond.addTextChangedListener(object : TextWatcher{
binding.edDiamond.addTextChangedListener(object : TextWatcher {
override fun beforeTextChanged(p0: CharSequence?, p1: Int, p2: Int, p3: Int) {
}
@@ -60,10 +95,62 @@ class ConvertDiamondActivity : BaseViewBindingActivity<ActivityConvertDiamondBin
}
override fun afterTextChanged(s: Editable?) {
if (isDiamond) {
val diamondText = s.toString()
if (diamondText.isNotEmpty()) {
binding.edGold.setText(
//去掉小数凑整:不管小数是多少，都进一
DoubleUtils.convertDoubleToString(
ceil(
DoubleUtils.div(
diamondText.toDouble(),
it.rate
)
)
)
)
} else {
binding.edGold.setText("")
}
}
binding.tvConvert.isEnabled = binding.edGold.text.toString()
.isNotEmpty() && binding.edDiamond.text.toString().isNotEmpty()
}
})
earnRecordModel.loadingLiveData.observe(this) { loading ->
if (loading) dialogManager.showProgressDialog(this)
else dialogManager.dismissDialog()
}
earnRecordModel.exchangeConfirmLiveData.observe(this) {
toast(getString(R.string.exchange_success))
finish()
}
binding.tvConvert.setOnClickListener { view ->
if (binding.edDiamond.text.toString().toLong() < it.minDiamonds) {
toast("至少需要兌換${it.minDiamonds}鉆石")
} else if (binding.edDiamond.text.toString().toLong() > it.maxDiamonds) {
toast("兌換鉆石數不能超過${it.maxDiamonds}鉆")
} else {
if (isDiamond) {
earnRecordModel.exchangeConfirm(
binding.edGold.text.toString().toLong(),
binding.edDiamond.text.toString().toLong(),
1
)
} else if (isGold) {
earnRecordModel.exchangeConfirm(
binding.edGold.text.toString().toLong(),
binding.edDiamond.text.toString().toLong(),
3
)
}
}
}
}
}

8
app/src/main/java/com/yizhuan/erban/earn/activity/EarnRecordActivity.kt
View File

@@ -58,6 +58,12 @@ class EarnRecordActivity : BaseViewBindingActivity<ActivityEarnRecordBinding>(),
}
}
earnRecordModel.getConfigWithdrawLiveData.observe(this) {
it?.let {
EarnWithdrawActivity.start(this, it)
}
}
earnRecordModel.getEarnRecordInfo()
}
@@ -90,7 +96,7 @@ class EarnRecordActivity : BaseViewBindingActivity<ActivityEarnRecordBinding>(),
earnRecordModel.getGoldToDiamondInfo()
}
R.id.tvConvertWithdraw -> {//提现
EarnWithdrawActivity.start(this)
earnRecordModel.getConfigWithdraw()
}
}
}

126
app/src/main/java/com/yizhuan/erban/earn/activity/EarnWithdrawActivity.kt
View File

@@ -2,28 +2,139 @@ package com.yizhuan.erban.earn.activity
import android.content.Context
import android.content.Intent
import android.text.Editable
import android.text.TextWatcher
import android.view.View
import androidx.activity.viewModels
import com.jungly.gridpasswordview.GridPasswordView
import com.netease.nim.uikit.StatusBarUtil
import com.yizhuan.erban.R
import com.yizhuan.erban.base.BaseViewBindingActivity
import com.yizhuan.erban.databinding.ActivityEarnWithdrawBinding
import com.yizhuan.erban.earn.EarnRecordViewModel
import com.yizhuan.erban.pay.password.GiveGoldPassWordFragment
import com.yizhuan.erban.ui.setting.ModifyPwdActivity
import com.yizhuan.erban.ui.widget.dialog.CommonTipDialog
import com.yizhuan.erban.ui.widget.password.PassWordFragment
import com.yizhuan.xchat_android_core.earn.bean.ConfigWithdrawInfo
import com.yizhuan.xchat_android_core.pay.PayModel
import com.yizhuan.xchat_android_core.user.UserModel
import com.yizhuan.xchat_android_library.utils.ResUtil
import kotlinx.android.synthetic.main.activity_give_gold_to_user.*
/**
* author: wushaocheng
* time: 2022/11/18
* desc: 提现
*/
class EarnWithdrawActivity : BaseViewBindingActivity<ActivityEarnWithdrawBinding>() {
class EarnWithdrawActivity : BaseViewBindingActivity<ActivityEarnWithdrawBinding>(),
GridPasswordView.OnPasswordChangedListener {
private val earnRecordModel: EarnRecordViewModel by viewModels()
private var passWordFragment: GiveGoldPassWordFragment? = null
companion object {
const val BEAN = "bean"
@JvmStatic
fun start(context: Context) {
fun start(context: Context, configWithdrawInfo: ConfigWithdrawInfo) {
val starter = Intent(context, EarnWithdrawActivity::class.java)
starter.putExtra(BEAN, configWithdrawInfo)
context.startActivity(starter)
}
}
override fun init() {
initTitleBar(getString(R.string.withdraw))
val bean = intent.getSerializableExtra(BEAN) as? ConfigWithdrawInfo
bean?.let {
binding.tvMyGold.text = getString(R.string.my_gold, it.golds.toString())
binding.edGold.hint = it.minGolds.toString()
binding.tvWithdrawNum.text =
getString(R.string.number_of_withdrawals_in_remaining_weeks, it.remainTimes)
if (it.account.uid != 0L) {
binding.groupBind.visibility = View.VISIBLE
binding.tvNoWithdraw.visibility = View.GONE
binding.tvSwift.text = getString(R.string.swift_code, it.account.swift)
binding.tvBankName.text = getString(R.string.bank_name, it.account.bankName)
} else {
binding.groupBind.visibility = View.GONE
binding.tvNoWithdraw.visibility = View.VISIBLE
}
binding.edGold.addTextChangedListener(object : TextWatcher {
override fun beforeTextChanged(p0: CharSequence?, p1: Int, p2: Int, p3: Int) {
}
override fun onTextChanged(p0: CharSequence?, p1: Int, p2: Int, p3: Int) {
}
override fun afterTextChanged(p0: Editable?) {
binding.tvWithdraw.isEnabled =
it.account.uid != 0L && p0.toString().isNotEmpty() && it.remainTimes > 0
}
})
earnRecordModel.loadingLiveData.observe(this) { loading ->
if (loading) dialogManager.showProgressDialog(this)
else dialogManager.dismissDialog()
}
earnRecordModel.exchangeLiveData.observe(this) { exchange ->
exchange?.let {
passWordFragment?.dismissAllowingStateLoss()
toast(getString(R.string.withdraw_success))
finish()
} ?: run {
passWordFragment?.dismissAllowingStateLoss()
}
}
binding.tvWithdraw.setOnClickListener { view ->
UserModel.get().cacheLoginUserInfo?.let { userInfo ->
if (!userInfo.isBindPaymentPwd) {
val tipDialog = CommonTipDialog(this@EarnWithdrawActivity)
tipDialog.setTipMsg(ResUtil.getString(R.string.setting_pay_pwd_first))
tipDialog.setOkText(getString(R.string.to_setting))
tipDialog.setOnActionListener(
object : CommonTipDialog.OnActionListener {
override fun onOk() {
ModifyPwdActivity.start(
this@EarnWithdrawActivity,
ModifyPwdActivity.PAY_PWD
)
}
}
)
tipDialog.show()
} else if (binding.edGold.text.toString().toLong() < it.minGolds) {
toast("至少需要兌換${it.minGolds}金幣")
} else if (binding.edGold.text.toString().toLong() > it.maxGolds) {
toast("提現不能超過${it.maxGolds}金幣")
} else {
GiveGoldPassWordFragment.newInstance(
supportFragmentManager,
"1000",
"哈哈",
""
)
.apply {
passWordFragment = this
setListener(this@EarnWithdrawActivity)
}
}
} ?: run {
toast(ResUtil.getString(R.string.ui_setting_settingactivity_06))
return@setOnClickListener
}
}
}
}
override fun needSteepStateBar() = true
@@ -34,5 +145,16 @@ class EarnWithdrawActivity : BaseViewBindingActivity<ActivityEarnWithdrawBinding
StatusBarUtil.StatusBarLightMode(this)
}
override fun onTextChanged(psw: String?) {
val password = passWordFragment?.password?.password ?: ""
if (password.length == 6) {
earnRecordModel.exchange(binding.edGold.text.toString().toLong(), password)
}
}
override fun onInputFinish(psw: String?) {
}
}

1
app/src/main/res/layout/activity_convert_diamond.xml
View File

@@ -176,6 +176,7 @@
android:layout_marginEnd="@dimen/dp_15"
android:layout_marginTop="@dimen/dp_50"
android:background="@drawable/bg_common_confirm"
android:enabled="false"
app:layout_constraintTop_toBottomOf="@+id/csConvertDetail"/>
</androidx.constraintlayout.widget.ConstraintLayout>

1
app/src/main/res/layout/activity_earn_record.xml
View File

@@ -159,6 +159,7 @@
android:layout_marginTop="18dp"
android:layout_marginEnd="@dimen/dp_20"
android:layout_marginBottom="@dimen/dp_18"
android:visibility="gone"
android:gravity="center"
android:text="@string/withdraw"
android:textColor="@color/color_582815"

69
app/src/main/res/layout/activity_earn_withdraw.xml
View File

@@ -26,6 +26,7 @@
app:layout_constraintTop_toBottomOf="@+id/title_bar">
<TextView
android:id="@+id/tvNoWithdraw"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginStart="@dimen/dp_15"
@@ -37,6 +38,39 @@
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<TextView
android:id="@+id/tvSwift"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginStart="@dimen/dp_15"
android:text="@string/swift_code"
android:textColor="@color/color_white"
android:textSize="@dimen/sp_14"
android:textStyle="bold"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintBottom_toTopOf="@+id/tvBankName"
app:layout_constraintTop_toTopOf="parent" />
<TextView
android:id="@+id/tvBankName"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginStart="@dimen/dp_15"
android:text="@string/bank_name"
android:textColor="@color/color_white"
android:textSize="@dimen/sp_14"
android:textStyle="bold"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintTop_toBottomOf="@+id/tvSwift"/>
<androidx.constraintlayout.widget.Group
android:id="@+id/groupBind"
android:visibility="gone"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
app:constraint_referenced_ids="tvSwift,tvBankName"/>
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
@@ -75,17 +109,17 @@
app:layout_constraintTop_toTopOf="parent" />
<TextView
android:text="@string/ui_withdraw_withdrawactivity_09"
android:textSize="@dimen/sp_13"
android:textColor="@color/color_6D6B89"
android:drawablePadding="@dimen/dp_2"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintTop_toTopOf="@+id/tvMyGold"
app:layout_constraintBottom_toBottomOf="@+id/tvMyGold"
android:layout_marginEnd="@dimen/dp_14"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
app:drawableEndCompat="@drawable/ic_withdraw_record_arrow" />
android:layout_marginEnd="@dimen/dp_14"
android:drawablePadding="@dimen/dp_2"
android:text="@string/ui_withdraw_withdrawactivity_09"
android:textColor="@color/color_6D6B89"
android:textSize="@dimen/sp_13"
app:drawableEndCompat="@drawable/ic_withdraw_record_arrow"
app:layout_constraintBottom_toBottomOf="@+id/tvMyGold"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintTop_toTopOf="@+id/tvMyGold" />
<androidx.constraintlayout.widget.ConstraintLayout
android:id="@+id/csMyGold"
@@ -136,23 +170,24 @@
</androidx.constraintlayout.widget.ConstraintLayout>
<TextView
android:text="@string/number_of_withdrawals_in_remaining_weeks"
android:textSize="@dimen/sp_13"
android:textColor="@color/color_6D6B89"
android:includeFontPadding="false"
android:id="@+id/tvWithdrawNum"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginEnd="@dimen/dp_28"
android:layout_marginTop="@dimen/dp_12"
android:layout_marginEnd="@dimen/dp_28"
android:layout_marginBottom="@dimen/dp_20"
android:includeFontPadding="false"
android:text="@string/number_of_withdrawals_in_remaining_weeks"
android:textColor="@color/color_6D6B89"
android:textSize="@dimen/sp_13"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintTop_toBottomOf="@+id/csMyGold"
app:layout_constraintBottom_toBottomOf="parent"/>
app:layout_constraintTop_toBottomOf="@+id/csMyGold" />
</androidx.constraintlayout.widget.ConstraintLayout>
<TextView
android:id="@+id/tvConvert"
android:id="@+id/tvWithdraw"
android:layout_width="match_parent"
android:layout_height="46dp"
android:layout_marginStart="@dimen/dp_15"

4
app/src/main/res/layout/fragment_recommend.xml
View File

@@ -77,8 +77,7 @@
android:layout_marginEnd="@dimen/dp_15"
android:background="@drawable/bg_home_chat"
android:gravity="center_vertical"
android:orientation="horizontal"
android:visibility="gone">
android:orientation="horizontal">
<ImageView
android:layout_width="48dp"
@@ -107,6 +106,7 @@
android:paddingStart="0dp"
android:paddingEnd="@dimen/dp_10"
android:scrollbars="none"
android:visibility="gone"
app:layoutManager="androidx.recyclerview.widget.LinearLayoutManager" />
<ImageView

4
app/src/main/res/values/strings.xml
View File

@@ -4976,5 +4976,9 @@
<string name="number_of_withdrawals_in_remaining_weeks">剩餘周提現次數：%d次</string>
<string name="immediate_cash_withdrawal">立即提現</string>
<string name="select_game">選擇游戲</string>
<string name="exchange_success">兑换成功</string>
<string name="swift_code">swift code/BIC：%s</string>
<string name="bank_name">bank name：%s</string>
<string name="withdraw_success">提現成功</string>
</resources>

13
core/src/diff_src_erban/java/com/yizhuan/xchat_android_core/earn/bean/ConfigWithdrawInfo.kt Normal file
View File

@@ -0,0 +1,13 @@
package com.yizhuan.xchat_android_core.earn.bean
import java.io.Serializable
data class ConfigWithdrawInfo(
val account: WithdrawAccount,
val golds: Double,//钱包当前金币数
val remainTimes: Int,//周剩余次数
val fee: Double,//手续费
val minGolds: Long,
val maxGolds: Long,
val hasPayPwd: Boolean
) : Serializable

4
core/src/diff_src_erban/java/com/yizhuan/xchat_android_core/earn/bean/GoldToDiamondInfo.kt
View File

@@ -7,5 +7,7 @@ data class GoldToDiamondInfo(
val golds: Double,
val rate: Double,
val maxDiamonds: Long,
val minDiamonds: Long
val minDiamonds: Long,
val maxGolds: Long,
val minGolds: Long,
) : Serializable

15
core/src/diff_src_erban/java/com/yizhuan/xchat_android_core/earn/bean/WithdrawAccount.kt Normal file
View File

@@ -0,0 +1,15 @@
package com.yizhuan.xchat_android_core.earn.bean
import java.io.Serializable
data class WithdrawAccount(
val uid: Long,
val swift: String,
val bankName: String,
val accountNumber: String,
val accountName: String,
val address: String,
val city: String,
val province: String,
val postCode: String
) : Serializable

47
core/src/diff_src_erban/java/com/yizhuan/xchat_android_core/earn/model/EarnModel.kt
View File

@@ -2,12 +2,15 @@ package com.yizhuan.xchat_android_core.earn.model
import com.yizhuan.xchat_android_core.base.BaseModel
import com.yizhuan.xchat_android_core.bean.response.ServiceResult
import com.yizhuan.xchat_android_core.earn.bean.ConfigWithdrawInfo
import com.yizhuan.xchat_android_core.earn.bean.EarnRecordInfo
import com.yizhuan.xchat_android_core.earn.bean.GoldToDiamondInfo
import com.yizhuan.xchat_android_core.home.bean.*
import com.yizhuan.xchat_android_core.utils.net.launchRequest
import com.yizhuan.xchat_android_library.net.rxnet.RxNet
import retrofit2.http.GET
import retrofit2.http.POST
import retrofit2.http.Query
object EarnModel : BaseModel() {
@@ -23,6 +26,25 @@ object EarnModel : BaseModel() {
api.getGoldToDiamondInfo()
}
suspend fun exchangeConfirm(
goldNum: Long,
diamondNum: Long,
currency: Int
): String? =
launchRequest {
api.exchangeConfirm(goldNum, diamondNum, currency)
}
suspend fun getConfigWithdrawInfo(): ConfigWithdrawInfo? =
launchRequest {
api.getConfigWithdrawInfo()
}
suspend fun exchange(goldNum: Long, payPwd: String): String? =
launchRequest {
api.exchange(goldNum, payPwd)
}
private interface Api {
/**
@@ -37,6 +59,31 @@ object EarnModel : BaseModel() {
@GET("/goldExchangeDiamond/getConfig")
suspend fun getGoldToDiamondInfo(): ServiceResult<GoldToDiamondInfo>
/**
* @return
*/
@POST("/goldExchangeDiamond/exchange")
suspend fun exchangeConfirm(
@Query("goldNum") goldNum: Long,
@Query("diamondNum") diamondNum: Long,
@Query("currency") currency: Int
): ServiceResult<String>
/**
* @return
*/
@GET("/withdraw/getConfig")
suspend fun getConfigWithdrawInfo(): ServiceResult<ConfigWithdrawInfo>
/**
* @return
*/
@POST("/withdraw/exchange")
suspend fun exchange(
@Query("goldNum") goldNum: Long,
@Query("payPwd") payPwd: String
): ServiceResult<String>
}
}

99
library/src/module_common/java/com/yizhuan/xchat_android_library/common/util/DoubleUtils.java Normal file
View File

@@ -0,0 +1,99 @@
package com.yizhuan.xchat_android_library.common.util;
import java.math.BigDecimal;
import java.text.DecimalFormat;
/**
* 由于Java的简单类型不能够精确的对浮点数进行运算，这个工具类提供精 确的浮点数运算，包括加减乘除和四舍五入。
*/
public class DoubleUtils{
private static final int DEF_DIV_SCALE = 2;
/**
* @Description 两个Double数相加
*
* @param d1
* @param d2
* @return Double
*/
public static Double add(Double d1,Double d2){
BigDecimal b1 = new BigDecimal(d1.toString());
BigDecimal b2 = new BigDecimal(d2.toString());
return b1.add(b2).doubleValue();
}
/**
* @Description 两个Double数相减
*
* @param d1
* @param d2
* @return Double
*/
public static Double sub(Double d1,Double d2){
BigDecimal b1 = new BigDecimal(d1.toString());
BigDecimal b2 = new BigDecimal(d2.toString());
return b1.subtract(b2).doubleValue();
}
/**
* @Description 两个Double数相乘
*
* @param d1
* @param d2
* @return Double
*/
public static Double mul(Double d1,Double d2){
BigDecimal b1 = new BigDecimal(d1.toString());
BigDecimal b2 = new BigDecimal(d2.toString());
return b1.multiply(b2).doubleValue();
}
/**
* @Description 两个Double数相除
*
* @param d1
* @param d2
* @return Double
*/
public static Double div(Double d1,Double d2){
BigDecimal b1 = new BigDecimal(d1.toString());
BigDecimal b2 = new BigDecimal(d2.toString());
return b1.divide(b2,DEF_DIV_SCALE,BigDecimal.ROUND_HALF_UP).doubleValue();
}
/**
* @Description 两个Double数相除，并保留scale位小数
*
* @param d1
* @param d2
* @param scale
* @return Double
*/
public static Double div(Double d1,Double d2,int scale){
if(scale<0){
throw new IllegalArgumentException(
"The scale must be a positive integer or zero");
}
BigDecimal b1 = new BigDecimal(d1.toString());
BigDecimal b2 = new BigDecimal(d2.toString());
return b1.divide(b2,scale,BigDecimal.ROUND_HALF_UP).doubleValue();
}
/**
* @Description String类型小数与Double类型的转换
*/
public static void StrToDouble(){
String str="1234.5678";
double num;
DecimalFormat myformat = new DecimalFormat("#0.00");
num = Double.parseDouble(str);//直接转换为double类型
num = Double.parseDouble(myformat.format(num));//保留2为小数
System.out.println(num);
}
public static String convertDoubleToString(double number) {
DecimalFormat df = new DecimalFormat("######0");
return df.format(number);
}
}