diff --git a/libs/binder/Value.cpp b/libs/binder/Value.cpp
index a28a618..19c57ba 100644
--- a/libs/binder/Value.cpp
+++ b/libs/binder/Value.cpp
@@ -97,7 +97,7 @@
 template<typename T> class Value::Content : public Value::ContentBase {
 public:
     Content() = default;
-    Content(const T & value) : mValue(value) { }
+    explicit Content(const T & value) : mValue(value) { }
 
     virtual ~Content() = default;
 
diff --git a/libs/binder/include/binder/BufferedTextOutput.h b/libs/binder/include/binder/BufferedTextOutput.h
index 9a7c43b..feae93d 100644
--- a/libs/binder/include/binder/BufferedTextOutput.h
+++ b/libs/binder/include/binder/BufferedTextOutput.h
@@ -32,7 +32,7 @@
         MULTITHREADED = 0x0001
     };
     
-                        BufferedTextOutput(uint32_t flags = 0);
+    explicit            BufferedTextOutput(uint32_t flags = 0);
     virtual             ~BufferedTextOutput();
     
     virtual status_t    print(const char* txt, size_t len);
diff --git a/libs/binder/include/binder/IpPrefix.h b/libs/binder/include/binder/IpPrefix.h
index dd5bc3a..c7e7a50 100644
--- a/libs/binder/include/binder/IpPrefix.h
+++ b/libs/binder/include/binder/IpPrefix.h
@@ -74,8 +74,8 @@
 private:
     union InternalUnion {
         InternalUnion() = default;
-        InternalUnion(const struct in6_addr &addr):mIn6Addr(addr) { };
-        InternalUnion(const struct in_addr &addr):mInAddr(addr) { };
+        explicit InternalUnion(const struct in6_addr &addr):mIn6Addr(addr) { };
+        explicit InternalUnion(const struct in_addr &addr):mInAddr(addr) { };
         struct in6_addr mIn6Addr;
         struct in_addr mInAddr;
     } mUnion;
diff --git a/libs/binder/include/binder/MemoryDealer.h b/libs/binder/include/binder/MemoryDealer.h
index fe5a31d..b483be0 100644
--- a/libs/binder/include/binder/MemoryDealer.h
+++ b/libs/binder/include/binder/MemoryDealer.h
@@ -34,7 +34,7 @@
 class MemoryDealer : public RefBase
 {
 public:
-    MemoryDealer(size_t size, const char* name = nullptr,
+    explicit MemoryDealer(size_t size, const char* name = nullptr,
             uint32_t flags = 0 /* or bits such as MemoryHeapBase::READ_ONLY */ );
 
     virtual sp<IMemory> allocate(size_t size);
diff --git a/libs/binder/include/binder/MemoryHeapBase.h b/libs/binder/include/binder/MemoryHeapBase.h
index 5e0a382..4be20a0 100644
--- a/libs/binder/include/binder/MemoryHeapBase.h
+++ b/libs/binder/include/binder/MemoryHeapBase.h
@@ -47,12 +47,12 @@
     /*
      * maps memory from the given device
      */
-    MemoryHeapBase(const char* device, size_t size = 0, uint32_t flags = 0);
+    explicit MemoryHeapBase(const char* device, size_t size = 0, uint32_t flags = 0);
 
     /*
      * maps memory from ashmem, with the given name for debugging
      */
-    MemoryHeapBase(size_t size, uint32_t flags = 0, char const* name = nullptr);
+    explicit MemoryHeapBase(size_t size, uint32_t flags = 0, char const* name = nullptr);
 
     virtual ~MemoryHeapBase();
 
diff --git a/libs/binder/include/binder/ParcelFileDescriptor.h b/libs/binder/include/binder/ParcelFileDescriptor.h
index ad950af..662e56e 100644
--- a/libs/binder/include/binder/ParcelFileDescriptor.h
+++ b/libs/binder/include/binder/ParcelFileDescriptor.h
@@ -31,7 +31,7 @@
 public:
     ParcelFileDescriptor();
     explicit ParcelFileDescriptor(android::base::unique_fd fd);
-    explicit ParcelFileDescriptor(ParcelFileDescriptor&& other) : mFd(std::move(other.mFd)) { }
+    ParcelFileDescriptor(ParcelFileDescriptor&& other) : mFd(std::move(other.mFd)) { }
     ~ParcelFileDescriptor() override;
 
     int get() const { return mFd.get(); }
diff --git a/libs/binder/include/binder/ProcessState.h b/libs/binder/include/binder/ProcessState.h
index 13f67ba..3712c84 100644
--- a/libs/binder/include/binder/ProcessState.h
+++ b/libs/binder/include/binder/ProcessState.h
@@ -80,7 +80,7 @@
 private:
     friend class IPCThreadState;
     
-                                ProcessState(const char* driver);
+            explicit            ProcessState(const char* driver);
                                 ~ProcessState();
 
                                 ProcessState(const ProcessState& o);
diff --git a/libs/binder/include/binder/TextOutput.h b/libs/binder/include/binder/TextOutput.h
index 851e01f..5b5f766 100644
--- a/libs/binder/include/binder/TextOutput.h
+++ b/libs/binder/include/binder/TextOutput.h
@@ -38,7 +38,7 @@
     
     class Bundle {
     public:
-        inline Bundle(TextOutput& to) : mTO(to) { to.pushBundle(); }
+        inline explicit Bundle(TextOutput& to) : mTO(to) { to.pushBundle(); }
         inline ~Bundle() { mTO.popBundle(); }
     private:
         TextOutput&     mTO;
@@ -80,7 +80,7 @@
 class TypeCode
 {
 public:
-    inline TypeCode(uint32_t code);
+    inline explicit TypeCode(uint32_t code);
     inline ~TypeCode();
 
     inline uint32_t typeCode() const;
diff --git a/libs/binder/include/binder/Value.h b/libs/binder/include/binder/Value.h
index 4dee3d8..735f40e 100644
--- a/libs/binder/include/binder/Value.h
+++ b/libs/binder/include/binder/Value.h
@@ -74,20 +74,20 @@
     bool operator!=(const Value& rhs) const { return !this->operator==(rhs); }
 
     Value(const Value& value);
-    Value(const bool& value);
-    Value(const int8_t& value);
-    Value(const int32_t& value);
-    Value(const int64_t& value);
-    Value(const double& value);
-    Value(const String16& value);
-    Value(const std::vector<bool>& value);
-    Value(const std::vector<uint8_t>& value);
-    Value(const std::vector<int32_t>& value);
-    Value(const std::vector<int64_t>& value);
-    Value(const std::vector<double>& value);
-    Value(const std::vector<String16>& value);
-    Value(const os::PersistableBundle& value);
-    Value(const binder::Map& value);
+    Value(const bool& value); // NOLINT(google-explicit-constructor)
+    Value(const int8_t& value); // NOLINT(google-explicit-constructor)
+    Value(const int32_t& value); // NOLINT(google-explicit-constructor)
+    Value(const int64_t& value); // NOLINT(google-explicit-constructor)
+    Value(const double& value); // NOLINT(google-explicit-constructor)
+    Value(const String16& value); // NOLINT(google-explicit-constructor)
+    Value(const std::vector<bool>& value); // NOLINT(google-explicit-constructor)
+    Value(const std::vector<uint8_t>& value); // NOLINT(google-explicit-constructor)
+    Value(const std::vector<int32_t>& value); // NOLINT(google-explicit-constructor)
+    Value(const std::vector<int64_t>& value); // NOLINT(google-explicit-constructor)
+    Value(const std::vector<double>& value); // NOLINT(google-explicit-constructor)
+    Value(const std::vector<String16>& value); // NOLINT(google-explicit-constructor)
+    Value(const os::PersistableBundle& value); // NOLINT(google-explicit-constructor)
+    Value(const binder::Map& value); // NOLINT(google-explicit-constructor)
 
     Value& operator=(const Value& rhs);
     Value& operator=(const int8_t& rhs);
@@ -153,8 +153,8 @@
     // String Convenience Adapters
     // ---------------------------
 
-    Value(const String8& value):               Value(String16(value)) { }
-    Value(const ::std::string& value):         Value(String8(value.c_str())) { }
+    explicit Value(const String8& value):               Value(String16(value)) { }
+    explicit Value(const ::std::string& value):         Value(String8(value.c_str())) { }
     void putString(const String8& value)       { return putString(String16(value)); }
     void putString(const ::std::string& value) { return putString(String8(value.c_str())); }
     Value& operator=(const String8& rhs)       { return *this = String16(rhs); }
diff --git a/libs/binder/ndk/ibinder_internal.h b/libs/binder/ndk/ibinder_internal.h
index ac592ea..7852298 100644
--- a/libs/binder/ndk/ibinder_internal.h
+++ b/libs/binder/ndk/ibinder_internal.h
@@ -34,7 +34,7 @@
 struct ABpBinder;
 
 struct AIBinder : public virtual ::android::RefBase {
-    AIBinder(const AIBinder_Class* clazz);
+    explicit AIBinder(const AIBinder_Class* clazz);
     virtual ~AIBinder();
 
     bool associateClass(const AIBinder_Class* clazz);
@@ -97,7 +97,7 @@
     ABpBinder* asABpBinder() override { return this; }
 
    private:
-    ABpBinder(const ::android::sp<::android::IBinder>& binder);
+    explicit ABpBinder(const ::android::sp<::android::IBinder>& binder);
 };
 
 struct AIBinder_Class {
@@ -141,7 +141,7 @@
         const AIBinder_DeathRecipient_onBinderDied& mOnDied;
     };
 
-    AIBinder_DeathRecipient(AIBinder_DeathRecipient_onBinderDied onDied);
+    explicit AIBinder_DeathRecipient(AIBinder_DeathRecipient_onBinderDied onDied);
     binder_status_t linkToDeath(AIBinder* binder, void* cookie);
     binder_status_t unlinkToDeath(AIBinder* binder, void* cookie);
 
diff --git a/libs/binder/ndk/include_ndk/android/binder_auto_utils.h b/libs/binder/ndk/include_ndk/android/binder_auto_utils.h
index ff1860e..80773f3 100644
--- a/libs/binder/ndk/include_ndk/android/binder_auto_utils.h
+++ b/libs/binder/ndk/include_ndk/android/binder_auto_utils.h
@@ -51,7 +51,7 @@
      * Convenience operator for implicitly constructing an SpAIBinder from nullptr. This is not
      * explicit because it is not taking ownership of anything.
      */
-    SpAIBinder(std::nullptr_t) : SpAIBinder() {}
+    SpAIBinder(std::nullptr_t) : SpAIBinder() {}  // NOLINT(google-explicit-constructor)
 
     /**
      * This will delete the underlying object if it exists. See operator=.
diff --git a/libs/binder/ndk/include_ndk/android/binder_interface_utils.h b/libs/binder/ndk/include_ndk/android/binder_interface_utils.h
index 1532725..a42c60b 100644
--- a/libs/binder/ndk/include_ndk/android/binder_interface_utils.h
+++ b/libs/binder/ndk/include_ndk/android/binder_interface_utils.h
@@ -137,7 +137,7 @@
 template <typename INTERFACE>
 class BpCInterface : public INTERFACE {
    public:
-    BpCInterface(const SpAIBinder& binder) : mBinder(binder) {}
+    explicit BpCInterface(const SpAIBinder& binder) : mBinder(binder) {}
     virtual ~BpCInterface() {}
 
     SpAIBinder asBinder() override;
diff --git a/libs/binder/ndk/parcel_internal.h b/libs/binder/ndk/parcel_internal.h
index f292309..6b7295e 100644
--- a/libs/binder/ndk/parcel_internal.h
+++ b/libs/binder/ndk/parcel_internal.h
@@ -27,7 +27,8 @@
     const ::android::Parcel* get() const { return mParcel; }
     ::android::Parcel* get() { return mParcel; }
 
-    AParcel(const AIBinder* binder) : AParcel(binder, new ::android::Parcel, true /*owns*/) {}
+    explicit AParcel(const AIBinder* binder)
+        : AParcel(binder, new ::android::Parcel, true /*owns*/) {}
     AParcel(const AIBinder* binder, ::android::Parcel* parcel, bool owns)
         : mBinder(binder), mParcel(parcel), mOwns(owns) {}
 
diff --git a/libs/binder/ndk/status_internal.h b/libs/binder/ndk/status_internal.h
index d39f0d8..f6227f7 100644
--- a/libs/binder/ndk/status_internal.h
+++ b/libs/binder/ndk/status_internal.h
@@ -23,7 +23,7 @@
 
 struct AStatus {
     AStatus() {}  // ok
-    AStatus(::android::binder::Status&& status) : mStatus(std::move(status)) {}
+    explicit AStatus(::android::binder::Status&& status) : mStatus(std::move(status)) {}
 
     ::android::binder::Status* get() { return &mStatus; }
     const ::android::binder::Status* get() const { return &mStatus; }
diff --git a/libs/binder/ndk/test/iface.cpp b/libs/binder/ndk/test/iface.cpp
index 6ef964e..64832f3 100644
--- a/libs/binder/ndk/test/iface.cpp
+++ b/libs/binder/ndk/test/iface.cpp
@@ -74,7 +74,7 @@
 
 class BpFoo : public IFoo {
    public:
-    BpFoo(AIBinder* binder) : mBinder(binder) {}
+    explicit BpFoo(AIBinder* binder) : mBinder(binder) {}
     virtual ~BpFoo() { AIBinder_decStrong(mBinder); }
 
     virtual binder_status_t doubleNumber(int32_t in, int32_t* out) {
diff --git a/libs/binder/tests/binderLibTest.cpp b/libs/binder/tests/binderLibTest.cpp
index 2dd86ba..99a71bd 100644
--- a/libs/binder/tests/binderLibTest.cpp
+++ b/libs/binder/tests/binderLibTest.cpp
@@ -230,7 +230,7 @@
 {
     public:
         BinderLibTestBundle(void) {}
-        BinderLibTestBundle(const Parcel *source) : m_isValid(false) {
+        explicit BinderLibTestBundle(const Parcel *source) : m_isValid(false) {
             int32_t mark;
             int32_t bundleLen;
             size_t pos;
@@ -941,7 +941,7 @@
 class BinderLibTestService : public BBinder
 {
     public:
-        BinderLibTestService(int32_t id)
+        explicit BinderLibTestService(int32_t id)
             : m_id(id)
             , m_nextServerId(id + 1)
             , m_serverStartRequested(false)
diff --git a/libs/binder/tests/schd-dbg.cpp b/libs/binder/tests/schd-dbg.cpp
index 6cf7f36..ec9534a 100644
--- a/libs/binder/tests/schd-dbg.cpp
+++ b/libs/binder/tests/schd-dbg.cpp
@@ -218,7 +218,7 @@
   uint64_t m_total_time = 0;
   uint64_t m_miss = 0;
   bool tracing;
-  Results(bool _tracing) : tracing(_tracing) {
+  explicit Results(bool _tracing) : tracing(_tracing) {
   }
   inline bool miss_deadline(uint64_t nano) {
     return nano > deadline_us * 1000;