1 files changed, 79 insertions, 0 deletions
diff --git a/main/src/cgeo/geocaching/utils/OOMDumpingUncaughtExceptionHandler.java b/main/src/cgeo/geocaching/utils/OOMDumpingUncaughtExceptionHandler.java
new file mode 100644
index 0000000..1401542
--- /dev/null
+++ b/main/src/cgeo/geocaching/utils/OOMDumpingUncaughtExceptionHandler.java
@@ -0,0 +1,79 @@
+package cgeo.geocaching.utils;
+
+import android.os.Environment;
+
+import java.io.IOException;
+import java.lang.Thread.UncaughtExceptionHandler;
+
+public class OOMDumpingUncaughtExceptionHandler implements UncaughtExceptionHandler {
+
+    private UncaughtExceptionHandler defaultHandler = null;
+    private boolean defaultReplaced = false;
+
+    public static boolean activateHandler() {
+
+        final OOMDumpingUncaughtExceptionHandler handler = new OOMDumpingUncaughtExceptionHandler();
+
+        return handler.activate();
+    }
+
+    private boolean activate() {
+
+        defaultHandler = Thread.getDefaultUncaughtExceptionHandler();
+
+        // replace default handler if that has not been done already
+        if (!(defaultHandler instanceof OOMDumpingUncaughtExceptionHandler)) {
+            Thread.setDefaultUncaughtExceptionHandler(this);
+            defaultReplaced = true;
+        } else {
+            defaultHandler = null;
+            defaultReplaced = false;
+        }
+
+        return defaultReplaced;
+    }
+
+    public static boolean resetToDefault() {
+
+        boolean defaultResetted = false;
+
+        final UncaughtExceptionHandler unspecificHandler = Thread.getDefaultUncaughtExceptionHandler();
+
+        if (unspecificHandler instanceof OOMDumpingUncaughtExceptionHandler) {
+            final OOMDumpingUncaughtExceptionHandler handler = (OOMDumpingUncaughtExceptionHandler) unspecificHandler;
+            defaultResetted = handler.reset();
+        }
+
+        return defaultResetted;
+    }
+
+    private boolean reset() {
+
+        final boolean resetted = defaultReplaced;
+
+        if (defaultReplaced) {
+            Thread.setDefaultUncaughtExceptionHandler(defaultHandler);
+            defaultReplaced = false;
+        }
+
+        return resetted;
+    }
+
+    @Override
+    public void uncaughtException(final Thread thread, final Throwable ex) {
+        Log.e("UncaughtException", ex);
+        Throwable exx = ex;
+        while (exx.getCause() != null) {
+            exx = exx.getCause();
+        }
+        if (exx.getClass().equals(OutOfMemoryError.class)) {
+            try {
+                Log.e("OutOfMemory");
+                android.os.Debug.dumpHprofData(Environment.getExternalStorageDirectory().getPath() + "/dump.hprof");
+            } catch (final IOException e) {
+                Log.e("Error writing dump", e);
+            }
+        }
+        defaultHandler.uncaughtException(thread, ex);
+    }
+}