Android event logcat的研究

经常有这样的需求：在程序A启动之后，在这个程序上覆盖一个界面，让用户输入密码后才能启动程序A，这类场景主要集中在安全软件中。

那应该怎样得知某某程序启动了，系统没有相应的广播，这很难知道程序启动了。

既然没有通知，那我们就只能用最笨的方法：主动去询问最近启动过哪些程序。

这需要用后台服务器一直跑，每隔一段时间就询问一次。程序启动的时候，会在Logcat中打印出一些日志信息，其中就有类似下面的日志，表明是启动了哪个程序

01-21 15:09:56.957: I/ActivityManager(240): START {act=android.intent.category.LAUNCHER] flg=0x10200000 cmp=com.estrongs.android.pop/.view.FileExplorerActivity u=0} from
pid 2176

这些日志都可以通过以下代码读取到，并且提供了解析包名的相应方法：

		try {
			int tagCode = EventLog.getTagCode("am_proc_start");
			Collection<Event>();
			EventLog.readEvents(new int[] { tagCode }, output);
			for (event : output) {
				// PID, UID, Process Name, Type, Component
				Object[] objects = (Object[]) event.getData();
				ComponentName componentName = ComponentName
						.unflattenFromString(objects[4].toString());
				String packageName = componentName.getPackageName();
				Log.d(TAG, "packageName=" + packageName);
			}
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}

那么你可能要问，“am_proc_start”这个Tag名是哪来的，那我们就把android.util.EventLog的代码翻出来看一下：

/*
 * Copyright (C) 2007 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package android.util;

import java.io.BufferedReader;
import java.io.FileReader;
import java.io.IOException;
import java.io.UnsupportedEncodingException;
import java.nio.BufferUnderflowException;
import java.nio.ByteBuffer;
import java.nio.ByteOrder;
import java.util.Collection;
import java.util.HashMap;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

/**
 * Access to the system diagnostic event record.  System diagnostic events are
 * used to record certain system-level events (such as garbage collection,
 * activity manager state, system watchdogs, and other low level activity),
 * which may be automatically collected and analyzed during system development.
 *
 * <p>This is <b>not</b> the main "logcat" debugging log ({@link android.util.Log})!
 * These diagnostic events are for system integrators, not application authors.
 *
 * <p>Events use integer tag codes corresponding to /system/etc/event-log-tags.
 * They carry a payload of one or more int, long, or String values.  The
 * event-log-tags file defines the payload contents for each type code.
 */
public class EventLog {
    /** @hide */ public EventLog() {}

    private static final String TAG = "EventLog";

    private static final String TAGS_FILE = "/system/etc/event-log-tags";
    private static final String COMMENT_PATTERN = "^\\s*(#.*)?$";
    private static final String TAG_PATTERN = "^\\s*(\\d+)\\s+(\\w+)\\s*(\\(.*\\))?\\s*$";
    private static HashMap<String, Integer> sTagCodes = null;
    private static HashMap<Integer, String> sTagNames = null;

    /** A previously logged event read from the logs. */
    public static final class Event {
        private final ByteBuffer mBuffer;

        // Layout of event log entry received from kernel.
        private static final int LENGTH_OFFSET = 0;
        private static final int PROCESS_OFFSET = 4;
        private static final int THREAD_OFFSET = 8;
        private static final int SECONDS_OFFSET = 12;
        private static final int NANOSECONDS_OFFSET = 16;

        private static final int PAYLOAD_START = 20;
        private static final int TAG_OFFSET = 20;
        private static final int DATA_START = 24;

        // Value types
        private static final byte INT_TYPE    = 0;
        private static final byte LONG_TYPE   = 1;
        private static final byte STRING_TYPE = 2;
        private static final byte LIST_TYPE   = 3;

        /** @param data containing event, read from the system */
        /*package*/ Event(byte[] data) {
            mBuffer = ByteBuffer.wrap(data);
            mBuffer.order(ByteOrder.nativeOrder());
        }

        /** @return the process ID which wrote the log entry */
        public int getProcessId() {
            return mBuffer.getInt(PROCESS_OFFSET);
        }

        /** @return the thread ID which wrote the log entry */
        public int getThreadId() {
            return mBuffer.getInt(THREAD_OFFSET);
        }

        /** @return the wall clock time when the entry was written */
        public long getTimeNanos() {
            return mBuffer.getInt(SECONDS_OFFSET) * 1000000000l
                    + mBuffer.getInt(NANOSECONDS_OFFSET);
        }

        /** @return the type tag code of the entry */
        public int getTag() {
            return mBuffer.getInt(TAG_OFFSET);
        }

        /** @return one of Integer, Long, String, null, or Object[] of same. */
        public synchronized Object getData() {
            try {
                mBuffer.limit(PAYLOAD_START + mBuffer.getShort(LENGTH_OFFSET));
                mBuffer.position(DATA_START);  // Just after the tag.
                return decodeObject();
            } catch (IllegalArgumentException e) {
                Log.wtf(TAG, "Illegal entry payload: tag=" + getTag(), e);
                return null;
            } catch (BufferUnderflowException e) {
                Log.wtf(TAG, "Truncated entry payload: tag=" + getTag(), e);
                return null;
            }
        }

        /** @return the loggable item at the current position in mBuffer. */
        private Object decodeObject() {
            byte type = mBuffer.get();
            switch (type) {
            case INT_TYPE:
                return (Integer) mBuffer.getInt();

            case LONG_TYPE:
                return (Long) mBuffer.getLong();

            case STRING_TYPE:
                try {
                    int length = mBuffer.getInt();
                    int start = mBuffer.position();
                    mBuffer.position(start + length);
                    return new String(mBuffer.array(), start, length, "UTF-8");
                } catch (UnsupportedEncodingException e) {
                    Log.wtf(TAG, "UTF-8 is not supported", e);
                    return null;
                }

            case LIST_TYPE:
                int length = mBuffer.get();
                if (length < 0) length += 256;  // treat as signed byte
                Object[] array = new Object[length];
                for (int i = 0; i < length; ++i) array[i] = decodeObject();
                return array;

            default:
                throw new IllegalArgumentException("Unknown entry type: " + type);
            }
        }
    }

    // We assume that the native methods deal with any concurrency issues.

    /**
     * Record an event log message.
     * @param tag The event type tag code
     * @param value A value to log
     * @return The number of bytes written
     */
    public static native int writeEvent(int tag, int value);

    /**
     * Record an event log message.
     * @param tag The event type tag code
     * @param value A value to log
     * @return The number of bytes written
     */
    public static native int writeEvent(int tag, long value);

    /**
     * Record an event log message.
     * @param tag The event type tag code
     * @param str A value to log
     * @return The number of bytes written
     */
    public static native int writeEvent(int tag, String str);

    /**
     * Record an event log message.
     * @param tag The event type tag code
     * @param list A list of values to log
     * @return The number of bytes written
     */
    public static native int writeEvent(int tag, Object... list);

    /**
     * Read events from the log, filtered by type.
     * @param tags to search for
     * @param output container to add events into
     * @throws IOException if something goes wrong reading events
     */
    public static native void readEvents(int[] tags, Collection<Event> output)
            throws IOException;

    /**
     * Get the name associated with an event type tag code.
     * @param tag code to look up
     * @return the name of the tag, or null if no tag has that number
     */
    public static String getTagName(int tag) {
        readTagsFile();
        return sTagNames.get(tag);
    }

    /**
     * Get the event type tag code associated with an event name.
     * @param name of event to look up
     * @return the tag code, or -1 if no tag has that name
     */
    public static int getTagCode(String name) {
        readTagsFile();
        Integer code = sTagCodes.get(name);
        return code != null ? code : -1;
    }

    /**
     * Read TAGS_FILE, populating sTagCodes and sTagNames, if not already done.
     */
    private static synchronized void readTagsFile() {
        if (sTagCodes != null && sTagNames != null) return;

        sTagCodes = new HashMap<String, Integer>();
        sTagNames = new HashMap<Integer, String>();

        Pattern comment = Pattern.compile(COMMENT_PATTERN);
        Pattern tag = Pattern.compile(TAG_PATTERN);
        BufferedReader reader = null;
        String line;

        try {
            reader = new BufferedReader(new FileReader(TAGS_FILE), 256);
            while ((line = reader.readLine()) != null) {
                if (comment.matcher(line).matches()) continue;

                Matcher m = tag.matcher(line);
                if (!m.matches()) {
                    Log.wtf(TAG, "Bad entry in " + TAGS_FILE + ": " + line);
                    continue;
                }

                try {
                    int num = Integer.parseInt(m.group(1));
                    String name = m.group(2);
                    sTagCodes.put(name, num);
                    sTagNames.put(num, name);
                } catch (NumberFormatException e) {
                    Log.wtf(TAG, "Error in " + TAGS_FILE + ": " + line, e);
                }
            }
        } catch (IOException e) {
            Log.wtf(TAG, "Error reading " + TAGS_FILE, e);
            // Leave the maps existing but unpopulated
        } finally {
            try { if (reader != null) reader.close(); } catch (IOException e) {}
        }
    }
}

那么你可能要问，“am_proc_start”这个Tag名是哪来的，那我们就把android.util.EventLog的代码翻出来看一下：

 /*
  * Copyright (C) 2007 The Android Open Source Project
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
  *
  *      http://www.apache.org/licenses/LICENSE-2.0
  *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */

 package android.util;

 import java.io.BufferedReader;
 import java.io.FileReader;
 import java.io.IOException;
 import java.io.UnsupportedEncodingException;
 import java.nio.BufferUnderflowException;
 import java.nio.ByteBuffer;
 import java.nio.ByteOrder;
 import java.util.Collection;
 import java.util.HashMap;
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;

 /**
  * Access to the system diagnostic event record.  System diagnostic events are
  * used to record certain system-level events (such as garbage collection,
  * activity manager state, system watchdogs, and other low level activity),
  * which may be automatically collected and analyzed during system development.
  *
  * <p>This is <b>not</b> the main "logcat" debugging log ({@link android.util.Log})!
  * These diagnostic events are for system integrators, not application authors.
  *
  * <p>Events use integer tag codes corresponding to /system/etc/event-log-tags.
  * They carry a payload of one or more int, long, or String values.  The
  * event-log-tags file defines the payload contents for each type code.
  */
 public class EventLog {
     /** @hide */ public EventLog() {}

     private static final String TAG = "EventLog";

     private static final String TAGS_FILE = "/system/etc/event-log-tags";
     private static final String COMMENT_PATTERN = "^\\s*(#.*)?$";
     private static final String TAG_PATTERN = "^\\s*(\\d+)\\s+(\\w+)\\s*(\\(.*\\))?\\s*$";
     private static HashMap<String, Integer> sTagCodes = null;
     private static HashMap<Integer, String> sTagNames = null;

     /** A previously logged event read from the logs. */
     public static final class Event {
         private final ByteBuffer mBuffer;

         // Layout of event log entry received from kernel.
         private static final int LENGTH_OFFSET = 0;
         private static final int PROCESS_OFFSET = 4;
         private static final int THREAD_OFFSET = 8;
         private static final int SECONDS_OFFSET = 12;
         private static final int NANOSECONDS_OFFSET = 16;

         private static final int PAYLOAD_START = 20;
         private static final int TAG_OFFSET = 20;
         private static final int DATA_START = 24;

         // Value types
         private static final byte INT_TYPE    = 0;
         private static final byte LONG_TYPE   = 1;
         private static final byte STRING_TYPE = 2;
         private static final byte LIST_TYPE   = 3;

         /** @param data containing event, read from the system */
         /*package*/ Event(byte[] data) {
             mBuffer = ByteBuffer.wrap(data);
             mBuffer.order(ByteOrder.nativeOrder());
         }

         /** @return the process ID which wrote the log entry */
         public int getProcessId() {
             return mBuffer.getInt(PROCESS_OFFSET);
         }

         /** @return the thread ID which wrote the log entry */
         public int getThreadId() {
             return mBuffer.getInt(THREAD_OFFSET);
         }

         /** @return the wall clock time when the entry was written */
         public long getTimeNanos() {
             return mBuffer.getInt(SECONDS_OFFSET) * 1000000000l
                     + mBuffer.getInt(NANOSECONDS_OFFSET);
         }

         /** @return the type tag code of the entry */
         public int getTag() {
             return mBuffer.getInt(TAG_OFFSET);
         }

         /** @return one of Integer, Long, String, null, or Object[] of same. */
         public synchronized Object getData() {
             try {
                 mBuffer.limit(PAYLOAD_START + mBuffer.getShort(LENGTH_OFFSET));
                 mBuffer.position(DATA_START);  // Just after the tag.
                 return decodeObject();
             } catch (IllegalArgumentException e) {
                 Log.wtf(TAG, "Illegal entry payload: tag=" + getTag(), e);
                 return null;
             } catch (BufferUnderflowException e) {
                 Log.wtf(TAG, "Truncated entry payload: tag=" + getTag(), e);
                 return null;
             }
         }

         /** @return the loggable item at the current position in mBuffer. */
         private Object decodeObject() {
             byte type = mBuffer.get();
             switch (type) {
             case INT_TYPE:
                 return (Integer) mBuffer.getInt();

             case LONG_TYPE:
                 return (Long) mBuffer.getLong();

             case STRING_TYPE:
                 try {
                     int length = mBuffer.getInt();
                     int start = mBuffer.position();
                     mBuffer.position(start + length);
                     return new String(mBuffer.array(), start, length, "UTF-8");
                 } catch (UnsupportedEncodingException e) {
                     Log.wtf(TAG, "UTF-8 is not supported", e);
                     return null;
                 }

             case LIST_TYPE:
                 int length = mBuffer.get();
                 if (length < 0) length += 256;  // treat as signed byte
                 Object[] array = new Object[length];
                 for (int i = 0; i < length; ++i) array[i] = decodeObject();
                 return array;

             default:
                 throw new IllegalArgumentException("Unknown entry type: " + type);
             }
         }
     }

     // We assume that the native methods deal with any concurrency issues.

     /**
      * Record an event log message.
      * @param tag The event type tag code
      * @param value A value to log
      * @return The number of bytes written
      */
     public static native int writeEvent(int tag, int value);

     /**
      * Record an event log message.
      * @param tag The event type tag code
      * @param value A value to log
      * @return The number of bytes written
      */
     public static native int writeEvent(int tag, long value);

     /**
      * Record an event log message.
      * @param tag The event type tag code
      * @param str A value to log
      * @return The number of bytes written
      */
     public static native int writeEvent(int tag, String str);

     /**
      * Record an event log message.
      * @param tag The event type tag code
      * @param list A list of values to log
      * @return The number of bytes written
      */
     public static native int writeEvent(int tag, Object... list);

     /**
      * Read events from the log, filtered by type.
      * @param tags to search for
      * @param output container to add events into
      * @throws IOException if something goes wrong reading events
      */
     public static native void readEvents(int[] tags, Collection<Event> output)
             throws IOException;

     /**
      * Get the name associated with an event type tag code.
      * @param tag code to look up
      * @return the name of the tag, or null if no tag has that number
      */
     public static String getTagName(int tag) {
         readTagsFile();
         return sTagNames.get(tag);
     }

     /**
      * Get the event type tag code associated with an event name.
      * @param name of event to look up
      * @return the tag code, or -1 if no tag has that name
      */
     public static int getTagCode(String name) {
         readTagsFile();
         Integer code = sTagCodes.get(name);
         return code != null ? code : -1;
     }

     /**
      * Read TAGS_FILE, populating sTagCodes and sTagNames, if not already done.
      */
     private static synchronized void readTagsFile() {
         if (sTagCodes != null && sTagNames != null) return;

         sTagCodes = new HashMap<String, Integer>();
         sTagNames = new HashMap<Integer, String>();

         Pattern comment = Pattern.compile(COMMENT_PATTERN);
         Pattern tag = Pattern.compile(TAG_PATTERN);
         BufferedReader reader = null;
         String line;

         try {
             reader = new BufferedReader(new FileReader(TAGS_FILE), 256);
             while ((line = reader.readLine()) != null) {
                 if (comment.matcher(line).matches()) continue;

                 Matcher m = tag.matcher(line);
                 if (!m.matches()) {
                     Log.wtf(TAG, "Bad entry in " + TAGS_FILE + ": " + line);
                     continue;
                 }

                 try {
                     int num = Integer.parseInt(m.group(1));
                     String name = m.group(2);
                     sTagCodes.put(name, num);
                     sTagNames.put(num, name);
                 } catch (NumberFormatException e) {
                     Log.wtf(TAG, "Error in " + TAGS_FILE + ": " + line, e);
                 }
             }
         } catch (IOException e) {
             Log.wtf(TAG, "Error reading " + TAGS_FILE, e);
             // Leave the maps existing but unpopulated
         } finally {
             try { if (reader != null) reader.close(); } catch (IOException e) {}
         }
     }
 }

发现EventLog的Tag名称来自一个文件/system/etc/log-tags，文件内容列出来，就可以看到已经定义好的各种Tag，这样子，想监听哪些事件，都可以一目了然了。

42 answer (to life the universe etc|3)
314 pi
2718 e
2719 configuration_changed (config mask|1|5)
2720 sync (id|3),(activity (Token|1|5),(Task ID|1|5),(Component Name|3),(Reason|3)
30002 am_task_to_front (Task|1|5)
30003 am_new_intent (Token|1|5),(Task ID|1|5),(Component Name|3),(Action|3),(MIME Type|3),(URI|3),(Flags|1|5)
30004 am_create_task (Task ID|1|5)
30005 am_create_activity (Token|1|5),(Task ID|1|5),(Component Name|3)
30007 am_resume_activity_launch_time (Token|1|5),(Component Name|3),(time|2|3)
30010 am_proc_bound (PID|1|5),(Process Name|3)
30011 am_proc_died (PID|1|5),(Process Name|3)
30012 am_failed_to_pause (Token|1|5),(Wanting to pause|3),(Currently pausing|3)
30013 am_pause_activity (Token|1|5),(Task ID|1|5),(Component Name|3),(Reason|3)
30019 am_relaunch_resume_activity (Token|1|5),(Task ID|1|5),(Component Name|3)
30021 am_on_paused_called (Component Name|3)
30022 am_on_resume_called (Component Name|3)
30023 am_kill (PID|1|5),(Process Name|3),(OomAdj|1|5),(Reason|3)
30024 am_broadcast_discard_filter (Broadcast|1|5),(Action|3),(Receiver Number|1|1),(BroadcastFilter|1|5)
30025 am_broadcast_discard_app (Broadcast|1|5),(Action|3),(Receiver Number|1|1),(App|3)
30030 am_create_service (Service Record|1|5),(Name|3),(Intent|3),(PID|1|5)
30031 am_destroy_service (Service Record|1|5),(Name|3),(PID|1|5)
30032 am_process_crashed_too_much (Name|3),(PID|1|5)
30033 am_drop_process (PID|1|5)
30034 am_service_crashed_too_much (Crash Count|1|1),(Component Name|3),(PID|1|5)
30035 am_schedule_service_restart (Component Name|3),(Time|2|3)
30036 am_provider_lost_process (Package Name|3),(UID|1|5),(Name|3)
30037 am_process_start_timeout (PID|1|5),(UID|1|5),(Process Name|3)
30039 am_crash (PID|1|5),(Process Name|3),(Flags|1|5),(Exception|3),(Message|3),(File|3),(Line|1|5)
30040 am_wtf (PID|1|5),(Process Name|3),(Flags|1|5),(Tag|3),(Message|3)
31000 wm_no_surface_memory (Window|3),(PID|1|5),(Operation|3)
32000 imf_force_reconnect_ime (IME|4),(Time Since Connect|2|3),(Showing|1|1)
50000 menu_item_selected (Menu type where 0 is options and 1 is context|1|5),(Menu item title|3)
50001 menu_opened (Menu type where 0 is options and 1 is context|1|5)
50020 connectivity_state_changed (custom|1|5)
50021 wifi_state_changed (wifi_state|3)
50022 wifi_event|1|5)
50023 wifi_supplicant_state_changed (supplicant_state|1|5)
50100 pdp_bad_dns_address (dns_address|3)
50101 pdp_radio_reset_countdown_triggered (out_packet_count|1|1)
50102 pdp_radio_reset (out_packet_count|1|1)
50103 pdp_context_reset (out_packet_count|1|1)
50104 pdp_reregister_network (out_packet_count|1|1)
50105 pdp_setup_fail (cause|1|5), (cid|1|5), (network_type|1|5)
50106 call_drop (cause|1|5), (cid|1|5), (network_type|1|5)
50107 data_network_registration_fail (op_numeric|1|5), (cid|1|5)
50108 data_network_status_on_radio_off (dc_state|3), (enable|1|5)
50109 pdp_network_drop (cid|1|5), (network_type|1|5)
50110 cdma_data_setup_failed (cause|1|5), (cid|1|5), (network_type|1|5)
50111 cdma_data_drop (cid|1|5), (network_type|1|5)
50112 gsm_rat_switched (cid|1|5), (network_from|1|5), (network_to|1|5)
50113 gsm_data_state_change (oldState|3), (newState|3)
50114 gsm_service_state_change (oldState|1|5), (oldGprsState|1|5), (newState|1|5), (newGprsState|1|5)
50115 cdma_data_state_change (oldState|3), (newState|3)
50116 cdma_service_state_change (oldState|1|5), (oldDataState|1|5), (newState|1|5), (newDataState|1|5)
50117 bad_ip_address (ip_address|3)
50118 data_stall_recovery_get_data_call_list (out_packet_count|1|1)
50119 data_stall_recovery_cleanup (out_packet_count|1|1)
50120 data_stall_recovery_reregister (out_packet_count|1|1)
50121 data_stall_recovery_radio_restart (out_packet_count|1|1)
50122 data_stall_recovery_radio_restart_with_prop (out_packet_count|1|1)
51000 socket_stats (send|1|2),(recv|1|2),(ip|1|5),(port|1|5),(close|1|5)
51100 netstats_mobile_sample (dev_rx_bytes|2|2),(dev_tx_bytes|2|2),(dev_rx_pkts|2|1),(dev_tx_pkts|2|1),(xt_rx_bytes|2|2),(xt_tx_bytes|2|2),(xt_rx_pkts|2|1),(xt_tx_pkts|2|1),(uid_rx_bytes|2|2),(uid_tx_bytes|2|2),(uid_rx_pkts|2|1),(uid_tx_pkts|2|1),(trusted_time|2|3)
51101 netstats_wifi_sample (dev_rx_bytes|2|2),(dev_tx_bytes|2|2),(dev_rx_pkts|2|1),(dev_tx_pkts|2|1),(xt_rx_bytes|2|2),(xt_tx_bytes|2|2),(xt_rx_pkts|2|1),(xt_tx_pkts|2|1),(uid_rx_bytes|2|2),(uid_tx_bytes|2|2),(uid_rx_pkts|2|1),(uid_tx_pkts|2|1),(trusted_time|2|3)
52000 db_sample (db|3),(sql|3),(time|1|3),(blocking_package|3),(sample_percent|1|6)
52001 http_stats (useragent|3),(response|2|3),(processing|2|3),(tx|1|2),(rx|1|2)
52002 content_query_sample (uri|3),(projection|3),(selection|3),(sortorder|3),(time|1|3),(blocking_package|3),(sample_percent|1|6)
52003 content_update_sample (uri|3),(operation|3),(selection|3),(time|1|3),(blocking_package|3),(sample_percent|1|6)
52004 binder_sample (descriptor|3),(method_num|1|5),(time|1|3),(blocking_package|3),(sample_percent|1|6)
60000 viewroot_draw (Draw time|1|3)
60001 viewroot_layout (Layout time|1|3)
60002 view_build_drawing_cache (View created drawing cache|1|5)
60003 view_use_drawing_cache (View drawn using bitmap cache|1|5)
60100 sf_app_dequeue_before (buffer|1),(identity|1),(time|2)
60101 sf_app_dequeue_after (buffer|1),(identity|1),(time|2)
60102 sf_app_lock_before (buffer|1),(identity|1),(time|2)
60103 sf_app_lock_after (buffer|1),(identity|1),(time|2)
60104 sf_app_queue (buffer|1),(identity|1),(time|2)
60105 sf_repaint (buffer|1),(time|2)
60106 sf_composition_complete (buffer|1),(time|2)
60107 sf_unlock_clients (buffer|1),(time|2)
60108 sf_swapbuffers (buffer|1),(time|2)
60109 sf_repaint_done (buffer|1),(time|2)
60110 sf_fb_post_before (buffer|1),(time|2)
60111 sf_fb_post_after (buffer|1),(time|2)
60112 sf_fb_dequeue_before (buffer|1),(time|2)
60113 sf_fb_dequeue_after (buffer|1),(time|2)
60114 sf_fb_lock_before (buffer|1),(time|2)
60115 sf_fb_lock_after (buffer|1),(time|2)
65537 netlink_failure (uid|1)
70000 screen_toggled (screen_state|1|5)
70101 browser_zoom_level_change (start level|1|5),(end level|1|5),(time|2|3)
70102 browser_double_tap_duration (duration|1|3),(time|2|3)
70103 browser_bookmark_added (url|3), (where|3)
70104 browser_page_loaded (url|3), (time|2|3)
70105 browser_timeonpage (url|3), (time|2|3)
70150 browser_snap_center
70151 browser_text_size_change (oldSize|1|5), (newSize|1|5)
70200 aggregation (aggregation time|2|3)
70201 aggregation_test (field1|1|2),(field2|1|2),(field3|1|2),(field4|1|2),(field5|1|2)
70301 phone_ui_enter
70302 phone_ui_exit
70303 phone_ui_button_click (text|3)
70304 phone_ui_ringer_query_elapsed
70305 phone_ui_multiple_query
71001 qsb_start (name|3),(version|1),(start_method|3),(latency|1|3),(search_source|3),(enabled_sources|3),(on_create_latency|1|3)
71002 qsb_click (id|2),(suggestions|3),(queried_sources|3),(num_chars|1),(click_type|1)
71003 qsb_search (search_source|3),(method|1),(num_chars|1)
71004 qsb_voice_search (search_source|3)
71005 qsb_exit (suggestions|3),(num_chars|1)
71006 qsb_latency (corpus|3),(latency|1|3),(num_chars|1)
74000 music_start_playback_requested (track_id|1|5) (source_id|3|50) (cache_hit|1|5)
74001 music_stop_playback_requested (track_id|1|5) (source_id|3|50)
74002 music_pause_playback_requested (track_id|1|5) (source_id|3|50)
74003 music_download_status (track_id|1|5) (source_id|3|50) (status|1|5) (data|1|5) (latency|1|5) (network_type|1|5) (network_subtype|1|5) (download_type|1|5)
74004 music_track_saved_as_ringtone (track_id|1|5) (source_id|3|50) (type|1|5)
75000 sqlite_mem_alarm_current (current|1|2)
75001 sqlite_mem_alarm_max (max|1|2)
75002 sqlite_mem_alarm_alloc_attempt (attempts|1|4)
75003 sqlite_mem_released (Memory released|1|2)
75004 sqlite_db_corrupt (Database file corrupt|3)
76001 tts_speak_success (engine|3),(caller_uid|1),(caller_pid|1),(length|1),(locale|3),(rate|1),(pitch|1),(engine_latency|2|3),(engine_total|2|3),(audio_latency|2|3)
76002 tts_speak_failure (engine|3),(caller_uid|1),(caller_pid|1),(length|1),(locale|3),(rate|1),(pitch|1)
78001 dispatchCommand_overflow
90000 nfc_first_share
90001 nfc_share (size|1|2),(tnf|1),(type|3),(aar_present|1),(duration|1|3)
90002 nfc_share_fail (size|1|2),(tnf|1),(type|3),(aar_present|1)
90003 nfc_ndef_received (size|1|2),(tnf|1),(type|3),(aar_present|1)
201001 system_update (status|1|5),(download_result|1|5),(bytes|2|2),(url|3)
201002 system_update_user (action|3)
202001 vending_reconstruct (changes|1)
202901 transaction_event (data|3)
203001 sync_details (authority|3),(send|1|2),(recv|1|2),(details|3)
203002 google_http_request (elapsed|2|3),(status|1),(appname|3),(reused|1)
204001 gtalkservice (eventType|1)
204002 gtalk_connection (status|1)
204003 gtalk_conn_close (status|1),(duration|1)
204004 gtalk_heartbeat_reset (interval_and_nt|1),(ip|3)
204005 c2dm (packet_type|1),(persistent_id|3),(stream_id|1),(last_stream_id|1)
205001 setup_server_timeout
205002 setup_required_captcha (action|3)
205003 setup_io_error (status|3)
205004 setup_server_error
205005 setup_retries_exhausted
205006 setup_no_data_network
205007 setup_completed
205008 gls_account_tried (status|1)
205009 gls_account_saved (status|1)
205010 gls_authenticate (status|1),(service|3)
205011 google_mail_switch (direction|1)
206002 gmail_perf_end (action|3),(cpu_time|1|3),(wall_time|1|3),(num_sub_iteration|1)