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- 根因：多处代码重复调用getMediaProjection()创建新实例，系统自动stop旧实例触发onStop回调，形成权限丢失恢复再丢失的死循环 - ScreenCaptureManager.ensureMediaProjection()：禁止重复创建，只从Holder获取已有对象 - ScreenCaptureManager.captureWithMediaProjection()：移除重复创建逻辑 - ScreenCaptureManager.triggerPermissionRecovery()：优先从Holder和SmartManager获取已有对象 - ScreenCaptureManager.regenerateMediaProjectionForAndroid15()：优先复用Holder中已有对象 - SmartMediaProjectionManager.attemptSilentRecovery()：先检查Holder是否已有有效对象 - Android15MediaProjectionManager.attemptSilentRecovery()：先检查Holder复用已有对象 - Android15MediaProjectionManager.determineStopReason()：修复误判逻辑，Holder中仍有有效对象时识别为旧实例被替换而非用户主动停止 - AccessibilityRemoteService.attemptAndroid15SilentRecovery()：优先复用Holder中已有对象 - AccessibilityRemoteService.handleMediaProjectionGranted()：Android 11+优先从Holder获取 - RemoteControlForegroundService.handleStartMediaProjection()：优先检查Holder避免重复创建