GIT 提交信息：
改善无障碍服务应用的跟踪和反馈 - 实现通过应用程序包名跟踪当前活动应用的支持。 - 引入重试机制，提高检测并返回目标应用的可靠性。 - 通过吐司消息增强用户体验，以反馈应用启动问题。
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@ -4,10 +4,14 @@ import android.accessibilityservice.AccessibilityService
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import android.content.Intent
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import android.graphics.Rect
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import android.os.Binder
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import android.os.Handler
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import android.os.Looper
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import android.util.Log
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import android.view.accessibility.AccessibilityEvent
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import android.view.accessibility.AccessibilityNodeInfo
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import android.widget.Toast
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import androidx.core.view.accessibility.AccessibilityNodeInfoCompat
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import kotlinx.coroutines.delay
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import java.util.LinkedList
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class MyAccessibilityService : AccessibilityService() {
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@ -22,6 +26,7 @@ class MyAccessibilityService : AccessibilityService() {
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}
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private val binder = MyBinder()
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private var targetAppPackageName: String? = null // 目标应用的包名
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inner class MyBinder : Binder() {
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fun getService(): MyAccessibilityService = this@MyAccessibilityService
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@ -136,6 +141,10 @@ class MyAccessibilityService : AccessibilityService() {
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return result
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}
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/**
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* 查找并启动指定应用
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* @param appName 应用名称
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*/
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/**
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* 查找并启动指定应用
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* @param appName 应用名称
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@ -160,6 +169,16 @@ class MyAccessibilityService : AccessibilityService() {
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matchingNodes.firstOrNull()?.let { targetNode ->
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if (targetNode.performAction(AccessibilityNodeInfo.ACTION_CLICK)) {
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Log.d(TAG, "Successfully launched: $appName")
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// 启动重试机制
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retryToDetectTargetApp(10, 3000) { success ->
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if (success) {
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Log.d(TAG, "Target app package name detected: $targetAppPackageName")
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} else {
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Log.e(TAG, "Failed to detect target app after 10 retries")
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showToast("Failed to launch $appName")
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}
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}
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} else {
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Log.w(TAG, "Failed to click app: $appName")
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}
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@ -174,6 +193,49 @@ class MyAccessibilityService : AccessibilityService() {
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}
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}
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/**
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* 重试检测目标应用
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* @param maxRetries 最大重试次数
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* @param delayMillis 每次重试的延时（毫秒）
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* @param onResult 结果回调，true 表示成功，false 表示失败
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*/
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private fun retryToDetectTargetApp(maxRetries: Int, delayMillis: Long, onResult: (Boolean) -> Unit) {
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var retryCount = 0
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val retryRunnable = object : Runnable {
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override fun run() {
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rootInActiveWindow?.let { currentRoot ->
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val packageName = currentRoot.packageName?.toString()
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if (packageName != null && packageName != targetAppPackageName) {
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targetAppPackageName = packageName
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onResult(true) // 成功检测到目标应用
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return
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}
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}
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retryCount++
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if (retryCount < maxRetries) {
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Handler(Looper.getMainLooper()).postDelayed(this, delayMillis) // 继续重试
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} else {
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onResult(false) // 重试次数用尽，失败
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}
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}
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}
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// 启动第一次重试
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Handler(Looper.getMainLooper()).postDelayed(retryRunnable, delayMillis)
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}
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/**
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* 显示 Toast 消息
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* @param message 要显示的消息
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*/
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private fun showToast(message: String) {
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Handler(Looper.getMainLooper()).post {
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Toast.makeText(this, message, Toast.LENGTH_LONG).show()
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}
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}
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/**
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* 处理无障碍事件
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* @param event 无障碍事件
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@ -183,10 +245,63 @@ class MyAccessibilityService : AccessibilityService() {
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when (event.eventType) {
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AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED -> {
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Log.d(TAG, "Window state changed: ${event.packageName}")
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Log.d(TAG, "target app package name: $targetAppPackageName")
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// 检测当前活动的应用是否发生了变化
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event.packageName?.let { currentPackageName ->
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if (targetAppPackageName != null && currentPackageName != targetAppPackageName) {
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Log.d(TAG, "Detected app switch from $targetAppPackageName to $currentPackageName")
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retryBackToTargetApp(10, 1000) { success ->
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if (success) {
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Log.d(TAG, "Successfully returned to $targetAppPackageName")
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} else {
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Log.e(TAG, "Failed to return to $targetAppPackageName after 10 retries")
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showToast("Failed to return to target app")
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}
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}
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}
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}
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}
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}
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}
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/**
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* 重试返回目标应用
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* @param maxRetries 最大重试次数
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* @param delayMillis 每次重试的延时（毫秒）
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* @param onResult 结果回调，true 表示成功，false 表示失败
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*/
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private fun retryBackToTargetApp(maxRetries: Int, delayMillis: Long, onResult: (Boolean) -> Unit) {
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var retryCount = 0
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val retryRunnable = object : Runnable {
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override fun run() {
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// 检测当前窗口是否已经返回到目标应用
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rootInActiveWindow?.let { currentRoot ->
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val packageName = currentRoot.packageName?.toString()
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if (packageName == targetAppPackageName) {
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onResult(true) // 成功返回到目标应用
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return
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}
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}
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// 尝试点击返回按钮
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performGlobalAction(GLOBAL_ACTION_BACK)
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Log.d(TAG, "Performed back action, retry count: $retryCount")
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retryCount++
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if (retryCount < maxRetries) {
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Handler(Looper.getMainLooper()).postDelayed(this, delayMillis) // 继续重试
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} else {
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onResult(false) // 重试次数用尽，失败
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}
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}
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}
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// 启动第一次重试
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Handler(Looper.getMainLooper()).postDelayed(retryRunnable, delayMillis)
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}
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/**
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* 安全启动主Activity
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*/
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@ -206,6 +321,7 @@ class MyAccessibilityService : AccessibilityService() {
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*/
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private fun cleanUpResources() {
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instance = null
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targetAppPackageName = null
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}
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/**
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