Add LogsActivity

app/src/main/java/com/github/gotify/log/LogsActivity.java

@@ -0,0 +1,71 @@
+package com.github.gotify.log;
+
+import android.os.AsyncTask;
+import android.os.Bundle;
+import android.os.Handler;
+import android.view.Menu;
+import android.view.MenuItem;
+import android.widget.TextView;
+
+import com.github.gotify.R;
+
+import androidx.appcompat.app.ActionBar;
+import androidx.appcompat.app.AppCompatActivity;
+
+public class LogsActivity extends AppCompatActivity {
+
+    private Handler handler = new Handler();
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_logs);
+        Log.i("Entering " + getClass().getSimpleName());
+        updateLogs();
+        setSupportActionBar(findViewById(R.id.toolbar));
+        ActionBar actionBar = getSupportActionBar();
+        if (actionBar != null) {
+            actionBar.setDisplayHomeAsUpEnabled(true);
+            actionBar.setDisplayShowCustomEnabled(true);
+        }
+    }
+
+    private void updateLogs() {
+        new RefreshLogs().execute();
+        if (!isDestroyed()) {
+            handler.postDelayed(this::updateLogs, 1000);
+        }
+    }
+
+    @Override
+    public boolean onCreateOptionsMenu(Menu menu) {
+        getMenuInflater().inflate(R.menu.logs_action, menu);
+        return super.onCreateOptionsMenu(menu);
+    }
+
+    @Override
+    public boolean onOptionsItemSelected(MenuItem item) {
+        if (item.getItemId() == android.R.id.home) {
+            finish();
+        }
+        if (item.getItemId() == R.id.action_delete_logs) {
+            Log.clear();
+        }
+        return super.onOptionsItemSelected(item);
+    }
+
+    class RefreshLogs extends AsyncTask<Void, Void, String> {
+
+        @Override
+        protected String doInBackground(Void... voids) {
+            return com.github.gotify.log.Log.get();
+        }
+
+        @Override
+        protected void onPostExecute(String s) {
+            TextView content = findViewById(R.id.log_content);
+            content.setText(s);
+            super.onPostExecute(s);
+        }
+    }
+}