feat: add isAutoRemeasureText in PanguTextConfig

pangutext-android/src/main/java/com/highcapable/pangutext/android/PanguTextConfig.kt

@@ -22,6 +22,7 @@
 package com.highcapable.pangutext.android
 
 import android.text.Spanned
+import android.widget.TextView
 import java.io.Serializable
 
 /**
@@ -53,6 +54,18 @@ class PanguTextConfig internal constructor() : Serializable {
      */
     var isProcessedSpanned = true
 
+    /**
+     * Whether to automatically re-measure the text width after processing.
+     *
+     * - Note: [PanguText] after injecting text and changing the text,
+     *   the width of [TextView] will not be calculated automatically.
+     *   At this time, this feature will call [TextView.setText] to re-execute the measurements,
+     *   which can fix every time in some dynamic layouts (such as `RecyclerView`) changes in text width,
+     *   but may cause performance issues, you can choose to disable this feature.
+     *   To prevent unnecessary performance overhead, this feature only takes effect on [TextView] with `maxLines` set to 1 or `singleLine`.
+     */
+    var isAutoRemeasureText = true
+
     /**
      * The regular expression for text content that needs to be excluded.
      * [PanguText] processing will be skipped after matching these texts.
@@ -87,6 +100,7 @@ class PanguTextConfig internal constructor() : Serializable {
     fun copy(body: PanguTextConfig.() -> Unit = {}) = PanguTextConfig().also {
         it.isEnabled = this.isEnabled
         it.isProcessedSpanned = this.isProcessedSpanned
+        it.isAutoRemeasureText = this.isAutoRemeasureText
         it.excludePatterns.addAll(this.excludePatterns)
         it.cjkSpacingRatio = this.cjkSpacingRatio
         it.body()

pangutext-android/src/main/java/com/highcapable/pangutext/android/core/PanguTextWatcher.kt

@@ -23,10 +23,13 @@ package com.highcapable.pangutext.android.core
 
 import android.text.Editable
 import android.text.TextWatcher
+import android.widget.EditText
 import android.widget.TextView
+import com.highcapable.betterandroid.system.extension.tool.SystemVersion
 import com.highcapable.pangutext.android.PanguText
 import com.highcapable.pangutext.android.PanguTextConfig
 import com.highcapable.pangutext.android.extension.injectRealTimePanguText
+import com.highcapable.yukireflection.factory.current
 
 /**
  * A [TextWatcher] that automatically applies [PanguText] to the text content.
@@ -36,8 +39,39 @@ import com.highcapable.pangutext.android.extension.injectRealTimePanguText
  * @param config the configuration of [PanguText].
  */
 class PanguTextWatcher internal constructor(private val base: TextView, private val config: PanguTextConfig) : TextWatcher {
+
+    /**
+     * The text watchers of the base [TextView].
+     * @return [ArrayList]<[TextWatcher]>.
+     */
+    private val textWatchers 
+        get() = base.current(ignored = true).field { 
+            name = "mListeners"
+            superClass()
+        }.cast<ArrayList<TextWatcher>>()
+
+    /**
+     * Whether to automatically re-measure the text width after processing.
+     * @return [Boolean]
+     */
+    private val isAutoRemeasureText 
+        get() = config.isAutoRemeasureText && base !is EditText && (base.maxLines == 1 ||
+            SystemVersion.require(SystemVersion.Q, base.maxLines == 1) { base.isSingleLine })
+
     override fun afterTextChanged(editable: Editable?) {
         editable?.let { PanguText.format(base.resources, base.textSize, it, config) }
+        if (!isAutoRemeasureText) return
+        val currentWatchers = mutableListOf<TextWatcher>()
+        textWatchers?.also {
+            currentWatchers.addAll(it)
+            // Avoid triggering events again during processing.
+            it.clear()
+        }
+        // Reset the text to trigger remeasurement.
+        base.text = editable
+        // Re-add to continue listening to text changes.
+        textWatchers?.addAll(currentWatchers)
+        currentWatchers.clear()
     }
     override fun beforeTextChanged(s: CharSequence?, start: Int, count: Int, after: Int) {}
     override fun onTextChanged(s: CharSequence?, start: Int, before: Int, count: Int) {}

pangutext-android/src/main/java/com/highcapable/pangutext/android/factory/PanguWidget.kt

@@ -87,6 +87,7 @@ internal object PanguWidget {
         } else instance.obtainStyledAttributes(attrs, R.styleable.PanguTextHelper) {
             val isEnabled = it.getBooleanOrNull(R.styleable.PanguTextHelper_panguText_enabled)
             val isProcessedSpanned = it.getBooleanOrNull(R.styleable.PanguTextHelper_panguText_processedSpanned)
+            val isAutoRemeasureText = it.getBooleanOrNull(R.styleable.PanguTextHelper_panguText_autoRemeasureText)
             val cjkSpacingRatio = it.getFloatOrNull(R.styleable.PanguTextHelper_panguText_cjkSpacingRatio)
             val excludePatterns = it.getStringOrNull(R.styleable.PanguTextHelper_panguText_excludePatterns)
                 ?.split(TEXT_REGEX_SPLITE_SYMBOL)?.mapNotNull { regex -> 
@@ -95,9 +96,10 @@ internal object PanguWidget {
                     }.getOrNull()
                 }?.toTypedArray() ?: emptyArray()
             if (isEnabled == false) return instance
-            if (isProcessedSpanned != null || cjkSpacingRatio != null || excludePatterns.isNotEmpty()) {
+            if (isProcessedSpanned != null || isAutoRemeasureText != null || cjkSpacingRatio != null || excludePatterns.isNotEmpty()) {
                 val configCopy = config.copy()
                 configCopy.isProcessedSpanned = isProcessedSpanned ?: config.isProcessedSpanned
+                configCopy.isAutoRemeasureText = isAutoRemeasureText ?: config.isAutoRemeasureText
                 configCopy.cjkSpacingRatio = cjkSpacingRatio ?: config.cjkSpacingRatio
                 if (excludePatterns.isNotEmpty()) {
                     config.excludePatterns.clear()

pangutext-android/src/main/res/values/attrs.xml

@@ -5,6 +5,8 @@
         <attr name="panguText_enabled" format="boolean" />
         <!-- Processed [Spanned] text (experimental). -->
         <attr name="panguText_processedSpanned" format="boolean" />
+        <!-- Whether to automatically re-measure the text width after processing. -->
+        <attr name="panguText_autoRemeasureText" format="boolean" />
         <!-- The regular expression for text content that needs to be excluded. -->
         <attr name="panguText_excludePatterns" format="string" />
         <!-- The CJK spacing ratio. -->