Use recyclerview to show Magisk logs

app/src/full/java/com/topjohnwu/magisk/adapters/MagiskLogAdapter.java

@@ -0,0 +1,75 @@
+package com.topjohnwu.magisk.adapters;
+
+import android.app.Activity;
+import android.util.DisplayMetrics;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.TextView;
+
+import com.topjohnwu.magisk.R;
+
+import java.util.List;
+
+import androidx.annotation.NonNull;
+import androidx.recyclerview.widget.RecyclerView;
+import butterknife.BindView;
+
+public class MagiskLogAdapter extends RecyclerView.Adapter<MagiskLogAdapter.ViewHolder> {
+
+    private List<String> mList;
+    private int txtWidth = -1;
+
+    public MagiskLogAdapter(List<String> list) {
+        mList = list;
+    }
+
+    @NonNull
+    @Override
+    public ViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
+        View v = LayoutInflater.from(parent.getContext())
+                .inflate(R.layout.list_item_magisk_log, parent, false);
+        ViewHolder vh = new ViewHolder(v);
+        if (txtWidth < 0) {
+            int max = 0;
+            String maxStr = "";
+            for (String s : mList) {
+                int len = s.length();
+                if (len > max) {
+                    max = len;
+                    maxStr = s;
+                }
+            }
+            vh.txt.setText(maxStr);
+            vh.txt.measure(0, 0);
+            txtWidth = vh.txt.getMeasuredWidth();
+            DisplayMetrics displayMetrics = new DisplayMetrics();
+            ((Activity) parent.getContext()).getWindowManager()
+                    .getDefaultDisplay().getMetrics(displayMetrics);
+            if (txtWidth < displayMetrics.widthPixels)
+                txtWidth = displayMetrics.widthPixels;
+        }
+        vh.txt.getLayoutParams().width = txtWidth;
+        return vh;
+    }
+
+    @Override
+    public void onBindViewHolder(@NonNull ViewHolder holder, int position) {
+        holder.txt.setText(mList.get(position));
+    }
+
+    @Override
+    public int getItemCount() {
+        return mList.size();
+    }
+
+    public class ViewHolder extends RecyclerView.ViewHolder {
+
+        @BindView(R.id.txt) TextView txt;
+
+        public ViewHolder(@NonNull View v) {
+            super(v);
+            new MagiskLogAdapter$ViewHolder_ViewBinding(this, itemView);
+        }
+    }
+}

app/src/full/java/com/topjohnwu/magisk/fragments/MagiskLogFragment.java

@@ -2,22 +2,18 @@ package com.topjohnwu.magisk.fragments;
 
 import android.Manifest;
 import android.os.Bundle;
-import android.text.TextUtils;
 import android.view.LayoutInflater;
 import android.view.Menu;
 import android.view.MenuInflater;
 import android.view.MenuItem;
 import android.view.View;
 import android.view.ViewGroup;
-import android.widget.HorizontalScrollView;
-import android.widget.ProgressBar;
-import android.widget.ScrollView;
-import android.widget.TextView;
 
 import com.google.android.material.snackbar.Snackbar;
 import com.topjohnwu.core.Const;
 import com.topjohnwu.core.utils.Utils;
 import com.topjohnwu.magisk.R;
+import com.topjohnwu.magisk.adapters.MagiskLogAdapter;
 import com.topjohnwu.magisk.components.BaseFragment;
 import com.topjohnwu.magisk.components.SnackbarMaker;
 import com.topjohnwu.superuser.Shell;
@@ -27,14 +23,12 @@ import java.io.IOException;
 import java.util.Calendar;
 
 import androidx.annotation.Nullable;
+import androidx.recyclerview.widget.RecyclerView;
 import butterknife.BindView;
 
 public class MagiskLogFragment extends BaseFragment {
 
-    @BindView(R.id.txtLog) TextView txtLog;
-    @BindView(R.id.svLog) ScrollView svLog;
-    @BindView(R.id.hsvLog) HorizontalScrollView hsvLog;
-    @BindView(R.id.progressBar) ProgressBar progressBar;
+    @BindView(R.id.recyclerView) RecyclerView rv;
 
     @Nullable
     @Override
@@ -42,7 +36,6 @@ public class MagiskLogFragment extends BaseFragment {
         View view = inflater.inflate(R.layout.fragment_magisk_log, container, false);
         unbinder = new MagiskLogFragment_ViewBinding(this, view);
         setHasOptionsMenu(true);
-        txtLog.setTextIsSelectable(true);
         return view;
     }
 
@@ -82,13 +75,7 @@ public class MagiskLogFragment extends BaseFragment {
 
     private void readLogs() {
         Shell.su("cat " + Const.MAGISK_LOG + " | tail -n 5000").submit(result -> {
-            progressBar.setVisibility(View.GONE);
-            if (result.getOut().isEmpty())
-                txtLog.setText(R.string.log_is_empty);
-            else
-                txtLog.setText(TextUtils.join("\n", result.getOut()));
-            svLog.postDelayed(() -> svLog.fullScroll(ScrollView.FOCUS_DOWN), 100);
-            hsvLog.postDelayed(() -> hsvLog.fullScroll(ScrollView.FOCUS_LEFT), 100);
+            rv.setAdapter(new MagiskLogAdapter(result.getOut()));
         });
     }
 
@@ -107,12 +94,11 @@ public class MagiskLogFragment extends BaseFragment {
         }
         Shell.su("cat " + Const.MAGISK_LOG + " > " + logFile)
                 .submit(result ->
-                        SnackbarMaker.make(txtLog, logFile.getPath(), Snackbar.LENGTH_SHORT).show());
+                        SnackbarMaker.make(rv, logFile.getPath(), Snackbar.LENGTH_SHORT).show());
     }
 
     private void clearLogs() {
         Shell.su("echo -n > " + Const.MAGISK_LOG).submit();
-        txtLog.setText(R.string.log_is_empty);
-        SnackbarMaker.make(txtLog, R.string.logs_cleared, Snackbar.LENGTH_SHORT).show();
+        SnackbarMaker.make(rv, R.string.logs_cleared, Snackbar.LENGTH_SHORT).show();
     }
 }

app/src/full/res/layout/fragment_magisk_log.xml

@@ -1,37 +1,16 @@
 <?xml version="1.0" encoding="utf-8"?>
-<ScrollView android:id="@+id/svLog"
+<HorizontalScrollView
     xmlns:android="http://schemas.android.com/apk/res/android"
-            xmlns:tools="http://schemas.android.com/tools"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
     android:layout_width="match_parent"
-            android:layout_height="wrap_content">
+    android:layout_height="match_parent">
 
-    <HorizontalScrollView
-        android:id="@+id/hsvLog"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content">
-
-        <LinearLayout
-            android:layout_width="match_parent"
+    <androidx.recyclerview.widget.RecyclerView
+        android:id="@+id/recyclerView"
+        android:layout_width="wrap_content"
         android:layout_height="match_parent"
-            tools:ignore="ScrollViewSize">
+        android:paddingStart="8dp"
+        android:paddingEnd="8dp"
+        app:layoutManager="androidx.recyclerview.widget.LinearLayoutManager" />
 
-            <TextView
-                android:id="@+id/txtLog"
-                android:layout_width="wrap_content"
-                android:layout_height="wrap_content"
-                android:fontFamily="monospace"
-                android:padding="8dp"
-                android:textIsSelectable="true"
-                android:textSize="10sp" />
-
-            <ProgressBar
-                android:id="@+id/progressBar"
-                android:layout_width="wrap_content"
-                android:layout_height="wrap_content"
-                android:layout_gravity="center"/>
-
-        </LinearLayout>
-
-    </HorizontalScrollView>
-
-</ScrollView>
+</HorizontalScrollView>

app/src/main/res/layout/list_item_magisk_log.xml

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="utf-8"?>
+<TextView xmlns:android="http://schemas.android.com/apk/res/android"
+    android:id="@+id/txt"
+    android:layout_width="wrap_content"
+    android:layout_height="wrap_content"
+    android:fontFamily="monospace"
+    android:textSize="10sp" />