diff --git a/app/src/main/java/io/legado/app/help/coroutine/Coroutine.kt b/app/src/main/java/io/legado/app/help/coroutine/Coroutine.kt
index 8d7ccf175..26d1c7c5e 100644
--- a/app/src/main/java/io/legado/app/help/coroutine/Coroutine.kt
+++ b/app/src/main/java/io/legado/app/help/coroutine/Coroutine.kt
@@ -2,6 +2,7 @@ package io.legado.app.help.coroutine
 
 import kotlinx.coroutines.*
 
+
 class Coroutine<T>() {
 
     companion object {
diff --git a/app/src/main/java/io/legado/app/help/permission/Request.kt b/app/src/main/java/io/legado/app/help/permission/Request.kt
index c13a84e82..1fc765bf9 100644
--- a/app/src/main/java/io/legado/app/help/permission/Request.kt
+++ b/app/src/main/java/io/legado/app/help/permission/Request.kt
@@ -87,9 +87,9 @@ internal class Request : OnRequestPermissionsResultCallback {
         } else {
             if (deniedPermissions != null) {
                 source?.context?.startActivity<PermissionActivity>(
-                    Pair(PermissionActivity.KEY_INPUT_REQUEST_TYPE, TYPE_REQUEST_PERMISSION),
-                    Pair(PermissionActivity.KEY_INPUT_PERMISSIONS_CODE, requestCode),
-                    Pair(PermissionActivity.KEY_INPUT_PERMISSIONS, deniedPermissions)
+                    PermissionActivity.KEY_INPUT_REQUEST_TYPE to TYPE_REQUEST_PERMISSION,
+                    PermissionActivity.KEY_INPUT_PERMISSIONS_CODE to requestCode,
+                    PermissionActivity.KEY_INPUT_PERMISSIONS to deniedPermissions
                 )
             } else {
                 onPermissionsGranted(requestCode)
@@ -133,10 +133,7 @@ internal class Request : OnRequestPermissionsResultCallback {
                     .setMessage(rationale)
                     .setPositiveButton(R.string.dialog_setting) { _, _ ->
                         it.startActivity<PermissionActivity>(
-                            Pair(
-                                PermissionActivity.KEY_INPUT_REQUEST_TYPE,
-                                TYPE_REQUEST_SETTING
-                            )
+                            PermissionActivity.KEY_INPUT_REQUEST_TYPE to TYPE_REQUEST_SETTING
                         )
                     }
                     .setNegativeButton(R.string.dialog_cancel) { _, _ -> cancel() }
diff --git a/app/src/main/java/io/legado/app/model/WebBook.kt b/app/src/main/java/io/legado/app/model/WebBook.kt
index 675e0c8d2..d5c22f700 100644
--- a/app/src/main/java/io/legado/app/model/WebBook.kt
+++ b/app/src/main/java/io/legado/app/model/WebBook.kt
@@ -14,7 +14,7 @@ class WebBook(private val bookSource: BookSource) {
     fun searchBook(key: String, page: Int?): Coroutine<List<SearchBook>> {
         return Coroutine.async {
             bookSource.getSearchRule().searchUrl?.let { searchUrl ->
-                val analyzeUrl = AnalyzeUrl(searchUrl)
+                val analyzeUrl = AnalyzeUrl(searchUrl, key, page)
                 val response = when {
                     analyzeUrl.method == AnalyzeUrl.Method.POST -> HttpHelper.getApiService<IHttpPostApi>(
                         analyzeUrl.baseUrl
diff --git a/app/src/main/java/io/legado/app/model/analyzeRule/AnalyzeByJSonPath.kt b/app/src/main/java/io/legado/app/model/analyzeRule/AnalyzeByJSonPath.kt
index 1f4ee7779..e1f697acd 100644
--- a/app/src/main/java/io/legado/app/model/analyzeRule/AnalyzeByJSonPath.kt
+++ b/app/src/main/java/io/legado/app/model/analyzeRule/AnalyzeByJSonPath.kt
@@ -3,6 +3,7 @@ package io.legado.app.model.analyzeRule
 import android.text.TextUtils
 import com.jayway.jsonpath.JsonPath
 import com.jayway.jsonpath.ReadContext
+import io.legado.app.utils.splitNotBlank
 import java.util.*
 import java.util.regex.Pattern
 
@@ -24,10 +25,10 @@ class AnalyzeByJSonPath {
         val rules: Array<String>
         val elementsType: String
         if (rule.contains("&&")) {
-            rules = rule.split("&&").dropLastWhile { it.isEmpty() }.toTypedArray()
+            rules = rule.splitNotBlank("&&")
             elementsType = "&"
         } else {
-            rules = rule.split("||").dropLastWhile { it.isEmpty() }.toTypedArray()
+            rules = rule.splitNotBlank("||")
             elementsType = "|"
         }
         if (rules.size == 1) {
@@ -82,15 +83,15 @@ class AnalyzeByJSonPath {
         val elementsType: String
         when {
             rule.contains("&&") -> {
-                rules = rule.split("&&").dropLastWhile { it.isEmpty() }.toTypedArray()
+                rules = rule.splitNotBlank("&&")
                 elementsType = "&"
             }
             rule.contains("%%") -> {
-                rules = rule.split("%%").dropLastWhile { it.isEmpty() }.toTypedArray()
+                rules = rule.splitNotBlank("%%")
                 elementsType = "%"
             }
             else -> {
-                rules = rule.split("||").dropLastWhile { it.isEmpty() }.toTypedArray()
+                rules = rule.splitNotBlank("||")
                 elementsType = "|"
             }
         }
@@ -159,15 +160,15 @@ class AnalyzeByJSonPath {
         val rules: Array<String>
         when {
             rule.contains("&&") -> {
-                rules = rule.split("&&").dropLastWhile { it.isEmpty() }.toTypedArray()
+                rules = rule.splitNotBlank("&&")
                 elementsType = "&"
             }
             rule.contains("%%") -> {
-                rules = rule.split("%%").dropLastWhile { it.isEmpty() }.toTypedArray()
+                rules = rule.splitNotBlank("%%")
                 elementsType = "%"
             }
             else -> {
-                rules = rule.split("||").dropLastWhile { it.isEmpty() }.toTypedArray()
+                rules = rule.splitNotBlank("||")
                 elementsType = "|"
             }
         }
diff --git a/app/src/main/java/io/legado/app/model/analyzeRule/AnalyzeByJSoup.kt b/app/src/main/java/io/legado/app/model/analyzeRule/AnalyzeByJSoup.kt
index 538ad607f..879d18b05 100644
--- a/app/src/main/java/io/legado/app/model/analyzeRule/AnalyzeByJSoup.kt
+++ b/app/src/main/java/io/legado/app/model/analyzeRule/AnalyzeByJSoup.kt
@@ -2,6 +2,7 @@ package io.legado.app.model.analyzeRule
 
 import android.text.TextUtils.isEmpty
 import android.text.TextUtils.join
+import io.legado.app.utils.splitNotBlank
 import org.jsoup.Jsoup
 import org.jsoup.nodes.Element
 import org.jsoup.select.Collector
@@ -81,15 +82,15 @@ class AnalyzeByJSoup {
             when {
                 sourceRule.elementsRule.contains("&&") -> {
                     elementsType = "&"
-                    ruleStrS = sourceRule.elementsRule.split("&&").dropLastWhile { it.isEmpty() }.toTypedArray()
+                    ruleStrS = sourceRule.elementsRule.splitNotBlank("&&")
                 }
                 sourceRule.elementsRule.contains("%%") -> {
                     elementsType = "%"
-                    ruleStrS = sourceRule.elementsRule.split("%%").dropLastWhile { it.isEmpty() }.toTypedArray()
+                    ruleStrS = sourceRule.elementsRule.splitNotBlank("%%")
                 }
                 else -> {
                     elementsType = "|"
-                    ruleStrS = sourceRule.elementsRule.split("||").dropLastWhile { it.isEmpty() }.toTypedArray()
+                    ruleStrS = sourceRule.elementsRule.splitNotBlank("||")
                 }
             }
             val results = ArrayList<List<String>>()
@@ -144,15 +145,15 @@ class AnalyzeByJSoup {
         when {
             sourceRule.elementsRule.contains("&&") -> {
                 elementsType = "&"
-                ruleStrS = sourceRule.elementsRule.split("&&").dropLastWhile { it.isEmpty() }.toTypedArray()
+                ruleStrS = sourceRule.elementsRule.splitNotBlank("&&")
             }
             sourceRule.elementsRule.contains("%%") -> {
                 elementsType = "%"
-                ruleStrS = sourceRule.elementsRule.split("%%").dropLastWhile { it.isEmpty() }.toTypedArray()
+                ruleStrS = sourceRule.elementsRule.splitNotBlank("%%")
             }
             else -> {
                 elementsType = "|"
-                ruleStrS = sourceRule.elementsRule.split("||").dropLastWhile { it.isEmpty() }.toTypedArray()
+                ruleStrS = sourceRule.elementsRule.splitNotBlank("||")
             }
         }
         val elementsList = ArrayList<Elements>()
@@ -215,7 +216,7 @@ class AnalyzeByJSoup {
     private fun getElementsSingle(temp: Element, rule: String): Elements {
         val elements = Elements()
         try {
-            val rs = rule.trim { it <= ' ' }.split("@").dropLastWhile { it.isEmpty() }.toTypedArray()
+            val rs = rule.trim { it <= ' ' }.splitNotBlank("@")
             if (rs.size > 1) {
                 elements.add(temp)
                 for (rl in rs) {
@@ -227,16 +228,15 @@ class AnalyzeByJSoup {
                     elements.addAll(es)
                 }
             } else {
-                val rulePcx = rule.split("!").dropLastWhile { it.isEmpty() }.toTypedArray()
+                val rulePcx = rule.splitNotBlank("!")
                 val rulePc =
-                    rulePcx[0].trim { it <= ' ' }.split(">").dropLastWhile { it.isEmpty() }.toTypedArray()
+                    rulePcx[0].trim { it <= ' ' }.splitNotBlank(">")
                 val rules =
-                    rulePc[0].trim { it <= ' ' }.split(".").dropLastWhile { it.isEmpty() }.toTypedArray()
+                    rulePc[0].trim { it <= ' ' }.splitNotBlank(".")
                 var filterRules: Array<String>? = null
                 var needFilterElements = rulePc.size > 1 && !isEmpty(rulePc[1].trim { it <= ' ' })
                 if (needFilterElements) {
-                    filterRules = rulePc[1].trim { it <= ' ' }.split(".").dropLastWhile { it.isEmpty() }
-                        .toTypedArray()
+                    filterRules = rulePc[1].trim { it <= ' ' }.splitNotBlank(".")
                     filterRules[0] = filterRules[0].trim { it <= ' ' }
                     val validKeys = listOf("class", "id", "tag", "text")
                     if (filterRules.size < 2 || !validKeys.contains(filterRules[0]) || isEmpty(filterRules[1].trim { it <= ' ' })) {
@@ -305,7 +305,7 @@ class AnalyzeByJSoup {
                     else -> elements.addAll(temp.select(rulePcx[0]))
                 }
                 if (rulePcx.size > 1) {
-                    val rulePcs = rulePcx[1].split(":".toRegex()).dropLastWhile { it.isEmpty() }.toTypedArray()
+                    val rulePcs = rulePcx[1].splitNotBlank(":")
                     for (pc in rulePcs) {
                         val pcInt = Integer.parseInt(pc)
                         if (pcInt < 0 && elements.size + pcInt >= 0) {
@@ -334,7 +334,7 @@ class AnalyzeByJSoup {
         }
         var elements = Elements()
         elements.add(element)
-        val rules = ruleStr.split("@").dropLastWhile { it.isEmpty() }.toTypedArray()
+        val rules = ruleStr.splitNotBlank("@")
         for (i in 0 until rules.size - 1) {
             val es = Elements()
             for (elt in elements) {
diff --git a/app/src/main/java/io/legado/app/model/analyzeRule/AnalyzeByXPath.kt b/app/src/main/java/io/legado/app/model/analyzeRule/AnalyzeByXPath.kt
index 3ba6a3e26..8ba053f40 100644
--- a/app/src/main/java/io/legado/app/model/analyzeRule/AnalyzeByXPath.kt
+++ b/app/src/main/java/io/legado/app/model/analyzeRule/AnalyzeByXPath.kt
@@ -1,6 +1,7 @@
 package io.legado.app.model.analyzeRule
 
 import android.text.TextUtils
+import io.legado.app.utils.splitNotBlank
 import org.jsoup.nodes.Document
 import org.seimicrawler.xpath.JXDocument
 import org.seimicrawler.xpath.JXNode
@@ -35,15 +36,15 @@ class AnalyzeByXPath {
         val rules: Array<String>
         when {
             xPath.contains("&&") -> {
-                rules = xPath.split("&&").dropLastWhile { it.isEmpty() }.toTypedArray()
+                rules = xPath.splitNotBlank("&&")
                 elementsType = "&"
             }
             xPath.contains("%%") -> {
-                rules = xPath.split("%%").dropLastWhile { it.isEmpty() }.toTypedArray()
+                rules = xPath.splitNotBlank("%%")
                 elementsType = "%"
             }
             else -> {
-                rules = xPath.split("||").dropLastWhile { it.isEmpty() }.toTypedArray()
+                rules = xPath.splitNotBlank("||")
                 elementsType = "|"
             }
         }
@@ -85,15 +86,15 @@ class AnalyzeByXPath {
         val rules: Array<String>
         when {
             xPath.contains("&&") -> {
-                rules = xPath.split("&&").dropLastWhile { it.isEmpty() }.toTypedArray()
+                rules = xPath.splitNotBlank("&&")
                 elementsType = "&"
             }
             xPath.contains("%%") -> {
-                rules = xPath.split("%%").dropLastWhile { it.isEmpty() }.toTypedArray()
+                rules = xPath.splitNotBlank("%%")
                 elementsType = "%"
             }
             else -> {
-                rules = xPath.split("||").dropLastWhile { it.isEmpty() }.toTypedArray()
+                rules = xPath.splitNotBlank("||")
                 elementsType = "|"
             }
         }
@@ -140,10 +141,10 @@ class AnalyzeByXPath {
         val rules: Array<String>
         val elementsType: String
         if (rule.contains("&&")) {
-            rules = rule.split("&&").dropLastWhile { it.isEmpty() }.toTypedArray()
+            rules = rule.splitNotBlank("&&")
             elementsType = "&"
         } else {
-            rules = rule.split("||").dropLastWhile { it.isEmpty() }.toTypedArray()
+            rules = rule.splitNotBlank("||")
             elementsType = "|"
         }
         if (rules.size == 1) {
diff --git a/app/src/main/java/io/legado/app/model/analyzeRule/AnalyzeRule.kt b/app/src/main/java/io/legado/app/model/analyzeRule/AnalyzeRule.kt
index 7146ae915..4b30e0451 100644
--- a/app/src/main/java/io/legado/app/model/analyzeRule/AnalyzeRule.kt
+++ b/app/src/main/java/io/legado/app/model/analyzeRule/AnalyzeRule.kt
@@ -462,8 +462,7 @@ class AnalyzeRule(private var book: BaseBook? = null) {
             }
             //分离正则表达式
             val ruleStrS =
-                rule.trim { it <= ' ' }.split("##".toRegex()).dropLastWhile { it.isEmpty() }
-                    .toTypedArray()
+                rule.trim { it <= ' ' }.splitNotBlank("##")
             rule = ruleStrS[0]
             if (ruleStrS.size > 1) {
                 replaceRegex = ruleStrS[1]
diff --git a/app/src/main/java/io/legado/app/ui/search/SearchViewModel.kt b/app/src/main/java/io/legado/app/ui/search/SearchViewModel.kt
index fa765695e..491f9f7af 100644
--- a/app/src/main/java/io/legado/app/ui/search/SearchViewModel.kt
+++ b/app/src/main/java/io/legado/app/ui/search/SearchViewModel.kt
@@ -24,6 +24,7 @@ class SearchViewModel(application: Application) : BaseViewModel(application) {
                 channel.send(it)
             }
         }
+
         val c = execute {
             val response: String = HttpHelper.getApiService<CommonHttpApi>(
                 "http://www.baidu.com"
@@ -32,7 +33,6 @@ class SearchViewModel(application: Application) : BaseViewModel(application) {
             delay(2000L)
 
             response
-
         }
             .onStart {
                 Log.e("TAG!", "start")
@@ -54,7 +54,8 @@ class SearchViewModel(application: Application) : BaseViewModel(application) {
         val c2 = plus(c)
 //            .timeout { 100L }
 //            .onErrorReturn { "error return2" }
-            .onStart {//会拦截掉c的onStart
+            .onStart {
+                //会拦截掉c的onStart
                 Log.e("TAG!", "start2")
                 start?.let { it() }
             }
@@ -69,12 +70,11 @@ class SearchViewModel(application: Application) : BaseViewModel(application) {
                 if (finally != null) {
                     finally()
                 }
+
                 Log.e("TAG!", "rec2: " + channel.receive())
             }
 
-
         launch {
-
             delay(1500L)
 //            c2.cancel()
 
diff --git a/app/src/main/java/io/legado/app/utils/StringExtensions.kt b/app/src/main/java/io/legado/app/utils/StringExtensions.kt
index de179f1da..580d8a10f 100644
--- a/app/src/main/java/io/legado/app/utils/StringExtensions.kt
+++ b/app/src/main/java/io/legado/app/utils/StringExtensions.kt
@@ -23,11 +23,14 @@ fun String?.htmlFormat(): String = if (this.isNullOrBlank()) "" else
         .replace("^[\\n\\s]+".toRegex(), "　　")//移除开头空行,并增加段前缩进2个汉字
         .replace("[\\n\\s]+$".toRegex(), "") //移除尾部空行
 
-fun String?.splitNotBlank(delim: String) = this?.run {
-    if (!this.contains(delim)) sequenceOf(this) else
-        this.split(delim).asSequence().map { it.trim() }.filterNot { it.isBlank() }
+fun String.splitNotBlank(delimiter: String): Array<String> = run {
+    this.split(delimiter).map { it.trim() }.filterNot { it.isBlank() }.toTypedArray()
 }
 
-fun String?.startWithIgnoreCase(start: String): Boolean {
-    return if (this.isNullOrBlank()) false else startsWith(start, true)
+fun String.splitNotBlank(regex: Regex, limit: Int = 0): Array<String> = run {
+    this.split(regex, limit).map { it.trim() }.filterNot { it.isBlank() }.toTypedArray()
+}
+
+fun String.startWithIgnoreCase(start: String): Boolean {
+    return if (this.isBlank()) false else startsWith(start, true)
 }
\ No newline at end of file