Difference between revisions of "Trigger: Logcat Message"
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| − | <pre | + | <pre class="header-style">The Logcat Message trigger fires when specified content appears in the device's Logcat output. Logcat is a device-wide logging mechanism that records key system events, app messages, and errors. This trigger requires special permissions that must be granted via ADB on non-rooted devices.</pre> |
| − | The Logcat output is a device wide logging mechanism that | ||
| − | + | ''' Options ''' | |
| − | + | * '''Component''': The component/tag name to filter log messages by. Use "*" to match all components. Supports wildcards and magic text. | |
| − | + | ||
| − | * '' | + | * '''Text to Match''': The text pattern to search for in log messages. Supports wildcards and magic text. |
| − | + | ||
| − | + | * '''Ignore Case''': When enabled, the text matching is case-insensitive. | |
| − | + | ||
| + | * '''Log Buffers''': Configure which log buffers to monitor (in MacroDroid Settings): | ||
| + | ** Main - Main application logs | ||
| + | ** System - System messages | ||
| + | ** Crash - Crash reports | ||
| + | ** Kernel - Kernel messages (if available) | ||
| + | ** Radio - Radio/telephony logs | ||
| + | ** Events - System event logs | ||
| + | |||
| + | ''' Requirements ''' | ||
| + | |||
| + | This trigger requires the READ_LOGS permission, which must be granted via one of the following methods: | ||
| + | |||
| + | '''Method 1: ADB (Non-rooted devices)''' | ||
| + | 1. Install the ADB tool on a computer | ||
| + | 2. Enable USB Debugging on your device | ||
| + | 3. Connect the device via USB | ||
| + | 4. Run: <code>adb shell pm grant com.arlosoft.macrodroid android.permission.READ_LOGS</code> | ||
| + | |||
| + | '''Method 2: Root''' | ||
| + | On rooted devices, MacroDroid will attempt to grant the permission automatically. | ||
| + | |||
| + | '''Android 14+ Additional Setup''' | ||
| + | Additional configuration may be required on Android 14 and above. Consult the MacroDroid forum for specific instructions. | ||
| + | |||
| + | ''' Examples ''' | ||
| + | |||
| + | ''Example 1: Detect App Crash'' | ||
| + | <pre class="trigger-style">Triggers | ||
| + | |||
| + | Logcat Message - [*] FATAL EXCEPTION</pre> | ||
| + | <pre class="action-style">Actions | ||
| + | |||
| + | Popup Message - An app has crashed! | ||
| + | Vibrate - 500ms</pre> | ||
| + | |||
| + | Detects when any app crashes and shows a notification. | ||
| + | |||
| + | ''Example 2: Monitor Specific App Messages'' | ||
| + | <pre class="trigger-style">Triggers | ||
| + | |||
| + | Logcat Message - [MyApp] Connection established</pre> | ||
| + | <pre class="action-style">Actions | ||
| + | |||
| + | Set Variable - app_connected = true</pre> | ||
| + | |||
| + | Monitors for a specific log message from a particular app. | ||
| + | |||
| + | ''' Magic Text ''' | ||
| + | |||
| + | When this trigger fires, the following magic text values are available: | ||
| + | * Full logcat line content - {logcat_line} | ||
| + | |||
| + | ''' Notes ''' | ||
| + | |||
| + | * The trigger clears the logcat buffer when it starts monitoring to prevent triggering on old messages. | ||
| + | * Log messages are processed in real-time as they appear. | ||
| + | * Wildcards (*) can be used in both component and text fields. | ||
| + | |||
| + | ''' Performance Considerations ''' | ||
| + | |||
| + | * Monitoring logcat can consume battery and processing resources. | ||
| + | * Use specific component filters when possible to reduce processing overhead. | ||
| + | * Consider the volume of log messages your filter might match. | ||
Latest revision as of 11:24, 6 January 2026
The Logcat Message trigger fires when specified content appears in the device's Logcat output. Logcat is a device-wide logging mechanism that records key system events, app messages, and errors. This trigger requires special permissions that must be granted via ADB on non-rooted devices.
Options
- Component: The component/tag name to filter log messages by. Use "*" to match all components. Supports wildcards and magic text.
- Text to Match: The text pattern to search for in log messages. Supports wildcards and magic text.
- Ignore Case: When enabled, the text matching is case-insensitive.
- Log Buffers: Configure which log buffers to monitor (in MacroDroid Settings):
- Main - Main application logs
- System - System messages
- Crash - Crash reports
- Kernel - Kernel messages (if available)
- Radio - Radio/telephony logs
- Events - System event logs
Requirements
This trigger requires the READ_LOGS permission, which must be granted via one of the following methods:
Method 1: ADB (Non-rooted devices)
1. Install the ADB tool on a computer
2. Enable USB Debugging on your device
3. Connect the device via USB
4. Run: adb shell pm grant com.arlosoft.macrodroid android.permission.READ_LOGS
Method 2: Root On rooted devices, MacroDroid will attempt to grant the permission automatically.
Android 14+ Additional Setup Additional configuration may be required on Android 14 and above. Consult the MacroDroid forum for specific instructions.
Examples
Example 1: Detect App Crash
Triggers Logcat Message - [*] FATAL EXCEPTION
Actions Popup Message - An app has crashed! Vibrate - 500ms
Detects when any app crashes and shows a notification.
Example 2: Monitor Specific App Messages
Triggers Logcat Message - [MyApp] Connection established
Actions Set Variable - app_connected = true
Monitors for a specific log message from a particular app.
Magic Text
When this trigger fires, the following magic text values are available:
- Full logcat line content - {logcat_line}
Notes
- The trigger clears the logcat buffer when it starts monitoring to prevent triggering on old messages.
- Log messages are processed in real-time as they appear.
- Wildcards (*) can be used in both component and text fields.
Performance Considerations
- Monitoring logcat can consume battery and processing resources.
- Use specific component filters when possible to reduce processing overhead.
- Consider the volume of log messages your filter might match.