Live logcat

Author: hannesa2

LogcatCoreLib/src/main/java/info/hannes/logcat/LogcatFragment.kt

@@ -3,30 +3,40 @@ package info.hannes.logcat
 import android.annotation.SuppressLint
 import android.os.Bundle
 import android.util.Log
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
 import info.hannes.logcat.base.LogBaseFragment
 import java.io.IOException
 import java.util.*
 
 
 class LogcatFragment : LogBaseFragment() {
 
+    private val logList = ArrayList<String>()
+
+    override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?): View? {
+        live = true
+        return super.onCreateView(inflater, container, savedInstanceState)
+    }
+
     @SuppressLint("LogNotTimber")
     override fun readLogFile(): ArrayList<String> {
-        val logList = ArrayList<String>()
         try {
             val process = Runtime.getRuntime().exec("logcat -dv time")
 
-            logList.addAll(
-                    process.inputStream.bufferedReader().use {
-                        it.readLines().map { line ->
-                            line.replace(" W/", " W: ")
-                                    .replace(" E/", " E: ")
-                                    .replace(" V/", " V: ")
-                                    .replace(" I/", " I: ")
-                                    .replace(" D/", " D: ")
-                        }
-                    }
-            )
+            process.inputStream.bufferedReader().use {
+                it.readLines().map { line ->
+                    val newLine = line.replace(" W/", " W: ")
+                            .replace(" E/", " E: ")
+                            .replace(" V/", " V: ")
+                            .replace(" I/", " I: ")
+                            .replace(" D/", " D: ")
+
+                    if (!logList.contains(newLine))
+                        logList.add(newLine)
+                }
+            }
 
         } catch (e: IOException) {
             Log.e("LoadingLogcatTask", e.message!!)

LogcatCoreLib/src/main/java/info/hannes/logcat/base/LogBaseFragment.kt

@@ -6,6 +6,8 @@ import android.content.Context
 import android.content.Intent
 import android.net.Uri
 import android.os.Bundle
+import android.os.Handler
+import android.os.Looper
 import android.os.StrictMode
 import android.view.*
 import androidx.appcompat.widget.SearchView
@@ -33,6 +35,7 @@ abstract class LogBaseFragment : Fragment() {
 
     private var filename: String? = null
     private var searchHint: String? = null
+    protected var live: Boolean = false
 
     override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?): View? {
         super.onCreateView(inflater, container, savedInstanceState)
@@ -43,7 +46,10 @@ abstract class LogBaseFragment : Fragment() {
         logsRecycler = view.findViewById(R.id.log_recycler)
         logsRecycler.layoutManager = layoutManager
         // empty adapter to avoid "E/RecyclerView﹕ No adapter attached; skipping layou..."
-        logsRecycler.adapter = LogListAdapter(mutableListOf(), currentFilter)
+        logListAdapter = LogListAdapter(mutableListOf(), currentFilter)
+        logsRecycler.adapter = logListAdapter
+
+        setFilter2LogAdapter("")
 
         activity!!.actionBar?.setDisplayHomeAsUpEnabled(true)
         if (savedInstanceState == null) {
@@ -63,13 +69,19 @@ abstract class LogBaseFragment : Fragment() {
         return view
     }
 
-    private fun showLogContent() = lifecycle.coroutineScope.launch(Dispatchers.Main) {
-        val logEntries = withContext(Dispatchers.Default) {
-            readLogFile()
+    private fun showLogContent() {
+        lifecycle.coroutineScope.launch(Dispatchers.Main) {
+            val logEntries = withContext(Dispatchers.Default) {
+                readLogFile()
+            }
+            logListAdapter?.setItems(logEntries)
+            logsRecycler.adapter = logListAdapter
+            logsRecycler.adapter?.itemCount?.minus(1)?.let { logsRecycler.scrollToPosition(it) }
+
+            if (live) {
+                Handler(Looper.getMainLooper()).postDelayed({ showLogContent() }, 1000)
+            }
         }
-        logListAdapter = LogListAdapter(logEntries, currentFilter)
-        logsRecycler.adapter = logListAdapter
-        logsRecycler.adapter?.itemCount?.minus(1)?.let { logsRecycler.scrollToPosition(it) }
     }
 
     override fun onCreateOptionsMenu(menu: Menu, inflater: MenuInflater) {

LogcatCoreLib/src/main/java/info/hannes/logcat/base/LogListAdapter.kt

@@ -12,7 +12,7 @@ import androidx.recyclerview.widget.RecyclerView
 import info.hannes.logcat.R
 import java.util.*
 
-class LogListAdapter(private val completeLogs: MutableList<String>, filter: String) : RecyclerView.Adapter<LogListAdapter.LogViewHolder>() {
+class LogListAdapter(private var completeLogs: MutableList<String>, filter: String) : RecyclerView.Adapter<LogListAdapter.LogViewHolder>() {
 
     private var currentFilter: Array<out String>? = null
     var filterLogs: List<String> = ArrayList()
@@ -21,9 +21,15 @@ class LogListAdapter(private val completeLogs: MutableList<String>, filter: Stri
         setFilter(filter)
     }
 
+    fun setItems(newItems: MutableList<String>) {
+        completeLogs = newItems
+        setFilter(currentFilter!![0])
+        notifyDataSetChanged()
+    }
+
     fun setFilter(vararg filters: String) {
         currentFilter = filters
-        filterLogs = completeLogs.filter { line ->
+        filterLogs = Collections.synchronizedList(completeLogs).filter { line ->
             var include = false
             for (filter in filters)
                 if (filter.length == 3 && filter.takeLast(2) == ": ") { // eg 'E: '