default no0 sampling rate

Author: leotianlizhan

firebase-perf/gradle.properties

@@ -1,3 +1,20 @@
-version=20.0.7-eap
+#
+# Copyright 2020 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+#
+
+version=20.0.7
 latestReleasedVersion=20.0.6
-android.enableUnitTestBinaryResources=true
+android.enableUnitTestBinaryResources=true

firebase-perf/src/main/java/com/google/firebase/perf/config/ConfigurationConstants.java

@@ -643,7 +643,7 @@ protected Float getDefault() {
       // Sampling rate range is [0.00f, 1.00f]. By default, sampling rate is 1.00f, which is 100%.
       // 0.00f means 0%, Fireperf will not capture any event for fragment trace from the device,
       // 1.00f means 100%, Fireperf will capture all events for fragment trace from the device.
-      return 1.00f;
+      return 0.00f;
     }
 
     @Override