Merge pull request #4 from acious/feature/kotlin-crash-app

Converted firebase crash app from Java to Kotlin

Author: cwdoh

crash/app/build.gradle

@@ -1,4 +1,5 @@
 apply plugin: 'com.android.application'
+apply plugin: 'kotlin-android'
 check.dependsOn 'assembleDebugAndroidTest'
 
 android {
@@ -40,6 +41,10 @@ dependencies {
     testCompile 'junit:junit:4.12'
     androidTestCompile 'com.android.support.test.espresso:espresso-core:2.2.2'
     androidTestCompile 'com.android.support.test:runner:0.5'
+    compile "org.jetbrains.kotlin:kotlin-stdlib-jre7:$kotlin_version"
 }
 
 apply plugin: 'com.google.gms.google-services'
+repositories {
+    mavenCentral()
+}

crash/app/src/main/java/com/google/samples/quickstart/crash/MainActivity.java

@@ -0,0 +1,84 @@
+/*
+ * Copyright Google Inc. All Rights Reserved.
+ *
+ * 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.
+ */
+
+package com.google.samples.quickstart.crash
+
+import android.os.Bundle
+import android.support.v7.app.AppCompatActivity
+import android.util.Log
+import android.widget.Button
+import android.widget.CheckBox
+
+import com.google.firebase.crash.FirebaseCrash
+
+/**
+ * This Activity shows the different ways of reporting application crashes.
+ * - Report caught crashes with Crash.report().
+ * - Automatically Report uncaught crashes.
+ *
+ *
+ * It also shows how to add log messages to crash reports using Crash.log().
+ *
+ *
+ * Check https://console.firebase.google.com to view and analyze your crash reports.
+ *
+ *
+ * Check https://firebase.google.com/docs/crash/android for more on
+ * Firebase Crash on Android.
+ */
+class MainActivity : AppCompatActivity() {
+    private val TAG = "MainActivity"
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        setContentView(R.layout.activity_main)
+
+        // Checkbox to indicate when to catch the thrown exception.
+        val catchCrashCheckBox = findViewById(R.id.catchCrashCheckBox) as CheckBox?
+
+        // Button that causes the NullPointerException to be thrown.
+        (findViewById(R.id.crashButton) as Button).setOnClickListener {
+            // Log that crash button was clicked. This version of Crash.log() will include the
+            // message in the crash report as well as show the message in logcat.
+            FirebaseCrash.logcat(Log.INFO, TAG, "Crash button clicked")
+
+            // If catchCrashCheckBox is checked catch the exception and report is using
+            // Crash.report(). Otherwise throw the exception and let Firebase Crash automatically
+            // report the crash.
+            when (catchCrashCheckBox?.isChecked) {
+                true -> {
+                    try {
+                        throw NullPointerException()
+                    } catch (ex: NullPointerException) {
+                        // [START log_and_report]
+                        FirebaseCrash.logcat(Log.ERROR, TAG, "NPE caught")
+                        FirebaseCrash.report(ex)
+                        // [END log_and_report]
+                    }
+                }
+                false -> {
+                    throw NullPointerException()
+                }
+            }
+        }
+
+        // Log that the Activity was created. This version of Crash.log() will include the message
+        // in the crash report but will not be shown in logcat.
+        // [START log_event]
+        FirebaseCrash.log("Activity created")
+        // [END log_event]
+    }
+}