Add ExceptionHandler and ShowErrorActivity

2022-05-15 16:19:34 +02:00
parent 3b71212905
commit 17ad13d559
9 changed files with 269 additions and 0 deletions
@@ -0,0 +1,80 @@
+package de.dennisguse.opentracks.util;
+
+import android.content.Context;
+import android.content.Intent;
+import android.os.Build;
+
+import androidx.annotation.NonNull;
+
+import java.io.PrintWriter;
+import java.io.StringWriter;
+import java.io.Writer;
+
+import de.dennisguse.opentracks.BuildConfig;
+import de.dennisguse.opentracks.ShowErrorActivity;
+
+public class ExceptionHandler implements Thread.UncaughtExceptionHandler {
+
+    private final Context context;
+    private final Thread.UncaughtExceptionHandler defaultExceptionHandler;
+
+    public ExceptionHandler(final Context context, final Thread.UncaughtExceptionHandler defaultExceptionHandler) {
+        this.context = context;
+        this.defaultExceptionHandler = defaultExceptionHandler;
+    }
+
+    @Override
+    public void uncaughtException(@NonNull final Thread thread, @NonNull final Throwable exception) {
+        try {
+            String errorReport = generateErrorReport(formatException(thread, exception));
+            Intent intent = new Intent(context, ShowErrorActivity.class);
+            intent.putExtra(ShowErrorActivity.EXTRA_ERROR_TEXT, errorReport);
+            intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
+            context.startActivity(intent);
+            // Pass exception to OS for graceful handling - OS will report it via ADB
+            // and close all activities and services.
+            defaultExceptionHandler.uncaughtException(thread, exception);
+        } catch (final Exception fatalException) {
+            // do not recurse into custom handler if exception is thrown during
+            // exception handling. Pass this ultimate fatal exception to OS
+            defaultExceptionHandler.uncaughtException(thread, fatalException);
+        }
+    }
+
+    private String formatException(final Thread thread, final Throwable exception) {
+        StringBuilder stringBuilder = new StringBuilder();
+        stringBuilder.append(String.format("Exception in thread \"%s\": ", thread.getName()));
+
+        // print available stacktrace
+        Writer writer = new StringWriter();
+        exception.printStackTrace(new PrintWriter(writer));
+        stringBuilder.append(writer);
+
+        return stringBuilder.toString();
+    }
+
+    private String generateErrorReport(final String stackTrace) {
+        return
+            "### App information\n" +
+            "* ID: " + BuildConfig.APPLICATION_ID + "\n" +
+            "* Version: " + BuildConfig.VERSION_CODE + " " + BuildConfig.VERSION_NAME + "\n" +
+            "\n" +
+            "### Device information\n" +
+            "* Brand: " + Build.BRAND + "\n" +
+            "* Device: " + Build.DEVICE + "\n" +
+            "* Model: " + Build.MODEL + "\n" +
+            "* Id: " + Build.ID + "\n" +
+            "* Product: " + Build.PRODUCT + "\n" +
+            "\n" +
+            "### Firmware\n" +
+            "* SDK: " + Build.VERSION.SDK_INT + "\n" +
+            "* Release: " + Build.VERSION.RELEASE + "\n" +
+            "* Incremental: " + Build.VERSION.INCREMENTAL + "\n" +
+            "\n" +
+            "### Cause of error\n" +
+            "```java\n" +
+            stackTrace +
+            "```\n";
+    }
+
+}