Fix some null safety issues from converting to Kotlin

app/src/main/java/com/commit451/gitlab/api/GitLab.kt

@@ -358,11 +358,11 @@ interface GitLab {
     /* --- BUILDS --- */
     @GET(API_VERSION + "/projects/{id}/builds")
     fun getBuilds(@Path("id") projectId: Long,
-                  @Query("scope") scope: String): Single<Response<List<Build>>>
+                  @Query("scope") scope: String?): Single<Response<List<Build>>>
     @GET
     fun getBuilds(@Url url: String,
-                  @Query("scope") state: String): Single<Response<List<Build>>>
+                  @Query("scope") state: String?): Single<Response<List<Build>>>
     @GET(API_VERSION + "/projects/{id}/builds/{build_id}")
     fun getBuild(@Path("id") projectId: Long,

app/src/main/java/com/commit451/gitlab/fragment/BuildsFragment.kt

@@ -58,9 +58,9 @@ class BuildsFragment : ButterKnifeFragment() {
     lateinit var adapterBuilds: BuildAdapter
     lateinit var layoutManagerBuilds: LinearLayoutManager
-    var project: Project? = null
-    lateinit var scope: String
     lateinit var scopes: Array<String>
+    var scope: String? = null
+    var project: Project? = null
     var nextPageUrl: Uri? = null
     var loading: Boolean = false
@@ -110,13 +110,12 @@ class BuildsFragment : ButterKnifeFragment() {
         spinnerIssue.adapter = ArrayAdapter(activity, android.R.layout.simple_list_item_1,
                 android.R.id.text1, resources.getStringArray(R.array.build_scope_names))
         spinnerIssue.onItemSelectedListener = object : AdapterView.OnItemSelectedListener {
-            override fun onItemSelected(parent: AdapterView<*>, view: View, position: Int, id: Long) {
+            override fun onItemSelected(parent: AdapterView<*>?, view: View?, position: Int, id: Long) {
                 scope = scopes[position]
                 loadData()
             }
-            override fun onNothingSelected(parent: AdapterView<*>) {
-
+            override fun onNothingSelected(parent: AdapterView<*>?) {
             }
         }

app/src/main/java/com/commit451/gitlab/fragment/IssuesFragment.kt

@@ -120,12 +120,12 @@ class IssuesFragment : ButterKnifeFragment() {
         spinnerIssue.adapter = ArrayAdapter(activity, android.R.layout.simple_list_item_1, android.R.id.text1, resources.getStringArray(R.array.issue_state_names))
         spinnerIssue.onItemSelectedListener = object : AdapterView.OnItemSelectedListener {
-            override fun onItemSelected(parent: AdapterView<*>, view: View, position: Int, id: Long) {
+            override fun onItemSelected(parent: AdapterView<*>?, view: View?, position: Int, id: Long) {
                 state = states[position]
                 loadData()
             }
-            override fun onNothingSelected(parent: AdapterView<*>) {
+            override fun onNothingSelected(parent: AdapterView<*>?) {
             }
         }

app/src/main/java/com/commit451/gitlab/fragment/MergeRequestsFragment.kt

@@ -59,12 +59,12 @@ class MergeRequestsFragment : ButterKnifeFragment() {
     var loading = false
     val onItemSelectedListener = object : AdapterView.OnItemSelectedListener {
-        override fun onItemSelected(parent: AdapterView<*>, view: View, position: Int, id: Long) {
+        override fun onItemSelected(parent: AdapterView<*>?, view: View?, position: Int, id: Long) {
             state = states[position]
             loadData()
         }
-        override fun onNothingSelected(parent: AdapterView<*>) {}
+        override fun onNothingSelected(parent: AdapterView<*>?) {}
     }
     val onScrollListener = object : RecyclerView.OnScrollListener() {

app/src/main/java/com/commit451/gitlab/fragment/MilestonesFragment.kt

@@ -113,12 +113,12 @@ class MilestonesFragment : ButterKnifeFragment() {
         spinnerStates.adapter = ArrayAdapter(activity, android.R.layout.simple_list_item_1, android.R.id.text1, resources.getStringArray(R.array.milestone_state_names))
         spinnerStates.onItemSelectedListener = object : AdapterView.OnItemSelectedListener {
-            override fun onItemSelected(parent: AdapterView<*>, view: View, position: Int, id: Long) {
+            override fun onItemSelected(parent: AdapterView<*>?, view: View?, position: Int, id: Long) {
                 state = states[position]
                 loadData()
             }
-            override fun onNothingSelected(parent: AdapterView<*>) {
+            override fun onNothingSelected(parent: AdapterView<*>?) {
             }
         }

app/src/main/java/com/commit451/gitlab/fragment/SnippetsFragment.kt

@@ -111,14 +111,12 @@ class SnippetsFragment : ButterKnifeFragment() {
         spinnerState.adapter = ArrayAdapter(activity, android.R.layout.simple_list_item_1, android.R.id.text1, resources.getStringArray(R.array.milestone_state_names))
         spinnerState.onItemSelectedListener = object : AdapterView.OnItemSelectedListener {
-            override fun onItemSelected(parent: AdapterView<*>, view: View, position: Int, id: Long) {
+            override fun onItemSelected(parent: AdapterView<*>?, view: View?, position: Int, id: Long) {
                 state = states[position]
                 loadData()
             }
-            override fun onNothingSelected(parent: AdapterView<*>) {
-
-            }
+            override fun onNothingSelected(parent: AdapterView<*>?) {}
         }
         swipeRefreshLayout.setOnRefreshListener { loadData() }