[connectivity]remove AndroidX constraint (flutter#2212)

After 0.4.5, we introduced a constraint that the app uses the plugin has to be migrated to androidx.
This patch removes the constraint.

Author: Chris Yang

packages/connectivity/CHANGELOG.md

@@ -1,3 +1,7 @@
+## 0.4.5+1
+
+* Android: Use android.arch.lifecycle instead of androidx.lifecycle:lifecycle in `build.gradle` to support apps that has not been migrated to AndroidX.
+
 ## 0.4.5
 
 * Support the v2 Android embedder.

packages/connectivity/android/build.gradle

@@ -63,9 +63,10 @@ afterEvaluate {
     if (!containsEmbeddingDependencies) {
         android {
             dependencies {
-                def lifecycle_version = "2.1.0"
-                api "androidx.lifecycle:lifecycle-common-java8:$lifecycle_version"
-                api "androidx.lifecycle:lifecycle-runtime:$lifecycle_version"
+                def lifecycle_version = "1.1.1"
+                api "android.arch.lifecycle:runtime:$lifecycle_version"
+                api "android.arch.lifecycle:common:$lifecycle_version"
+                api "android.arch.lifecycle:common-java8:$lifecycle_version"
             }
         }
     }

packages/connectivity/android/src/main/java/io/flutter/plugins/connectivity/Connectivity.java

@@ -11,8 +11,6 @@
 import android.net.wifi.WifiInfo;
 import android.net.wifi.WifiManager;
 import android.os.Build;
-import androidx.annotation.NonNull;
-import androidx.annotation.Nullable;
 
 /** Reports connectivity related information such as connectivity type and wifi information. */
 class Connectivity {
@@ -24,7 +22,6 @@ class Connectivity {
     this.wifiManager = wifiManager;
   }
 
-  @NonNull
   String getNetworkType() {
     if (android.os.Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
       Network network = connectivityManager.getActiveNetwork();
@@ -44,7 +41,6 @@ String getNetworkType() {
     return getNetworkTypeLegacy();
   }
 
-  @Nullable
   String getWifiName() {
     WifiInfo wifiInfo = getWifiInfo();
     String ssid = null;
@@ -53,7 +49,6 @@ String getWifiName() {
     return ssid;
   }
 
-  @Nullable
   String getWifiBSSID() {
     WifiInfo wifiInfo = getWifiInfo();
     String bssid = null;
@@ -63,7 +58,6 @@ String getWifiBSSID() {
     return bssid;
   }
 
-  @Nullable
   String getWifiIPAddress() {
     WifiInfo wifiInfo = null;
     if (wifiManager != null) wifiInfo = wifiManager.getConnectionInfo();
@@ -81,7 +75,6 @@ String getWifiIPAddress() {
     return ip;
   }
 
-  @Nullable
   private WifiInfo getWifiInfo() {
     return wifiManager == null ? null : wifiManager.getConnectionInfo();
   }

packages/connectivity/android/src/main/java/io/flutter/plugins/connectivity/ConnectivityBroadcastReceiver.java

@@ -9,7 +9,6 @@
 import android.content.Intent;
 import android.content.IntentFilter;
 import android.net.ConnectivityManager;
-import androidx.annotation.NonNull;
 import io.flutter.plugin.common.EventChannel;
 
 /**
@@ -26,7 +25,7 @@ class ConnectivityBroadcastReceiver extends BroadcastReceiver
   private Connectivity connectivity;
   private EventChannel.EventSink events;
 
-  ConnectivityBroadcastReceiver(@NonNull Context context, @NonNull Connectivity connectivity) {
+  ConnectivityBroadcastReceiver(Context context, Connectivity connectivity) {
     this.context = context;
     this.connectivity = connectivity;
   }

packages/connectivity/android/src/main/java/io/flutter/plugins/connectivity/ConnectivityMethodChannelHandler.java

@@ -4,7 +4,6 @@
 
 package io.flutter.plugins.connectivity;
 
-import androidx.annotation.NonNull;
 import io.flutter.plugin.common.MethodCall;
 import io.flutter.plugin.common.MethodChannel;
 
@@ -21,7 +20,7 @@ class ConnectivityMethodChannelHandler implements MethodChannel.MethodCallHandle
    * Construct the ConnectivityMethodChannelHandler with a {@code connectivity}. The {@code
    * connectivity} must not be null.
    */
-  ConnectivityMethodChannelHandler(@NonNull Connectivity connectivity) {
+  ConnectivityMethodChannelHandler(Connectivity connectivity) {
     assert (connectivity != null);
     this.connectivity = connectivity;
   }

packages/connectivity/example/android/app/gradle.properties

@@ -3,7 +3,7 @@ description: Flutter plugin for discovering the state of the network (WiFi &
   mobile/cellular) connectivity on Android and iOS.
 author: Flutter Team <flutter-dev@googlegroups.com>
 homepage: https://github.com/flutter/plugins/tree/master/packages/connectivity
-version: 0.4.5
+version: 0.4.5+1
 
 flutter:
   plugin: