Fast Integration with Smart Life App SDK for Android

This topic describes how to quickly integrate Tuya Smart Life App SDK for Android into your development environment, such as Android Studio. It also sheds light on the initialization method and how to enable the debugging mode with a few simple steps. This allows you to run the demo app and get started with your smart life app development by using the App SDK.

Prerequisites

• Before you start, make sure that you have performed the steps in Preparation.

  • Starting from the Smart Life App SDK for Android 3.29.5, SHA256 hash values are required. For more information, see How to Get SHA1 and SHA256 Keys.
    Note: If you need to launch apps on Google Play, check whether the app re-signing feature is enabled. If so, configure the SHA256 hash values generated by Google on the Tuya IoT Development Platform. Otherwise, the error “illegal client” will occur. For more information, see How to check app signing on Google Play?

  • Starting from the Smart Life App SDK for Android 4.0.0, the package name for Android configured on the Tuya IoT Development Platform must be the same as packageName in your project. Otherwise, the error ILLEGAL_CLIENT_ID will arise.

• If you have not installed Android Studio, visit the Android Studio official website to download Android Studio.

Integrate App SDK

Step 1: Create an Android project

Create a project in Android Studio.

Step 2: Configure build.gradle

Add dependencies to the build.gradle file of the Android project.

android {
	defaultConfig {
		ndk {
			abiFilters "armeabi-v7a", "arm64-v8a"
		}
	}
	packagingOptions {
		pickFirst 'lib/*/libc++_shared.so' // An Android Archive (AAR) file contains an Android library. If the .so file exists in multiple AAR files, select the first AAR file.
	}
}
dependencies {
	implementation 'com.alibaba:fastjson:1.1.67.android'
	implementation 'com.squareup.okhttp3:okhttp-urlconnection:3.14.9'

	// The latest stable App SDK for Android.
	implementation 'com.tuya.smart:tuyasmart:4.0.7'
}

Add the Tuya IoT Maven repository URL to the build.gradle file in the root directory.

repositories {
	jcenter()
        maven { url 'https://maven-other.tuya.com/repository/maven-releases/' }
        maven { url "https://maven-other.tuya.com/repository/maven-commercial-releases/" }
        maven { url 'https://jitpack.io' }
	google()
        mavenCentral()
	maven { url 'https://maven.aliyun.com/repository/public' }
	maven { url 'https://central.maven.org/maven2/' }
	maven { url 'https://oss.sonatype.org/content/repositories/snapshots/' }
	maven { url 'https://developer.huawei.com/repo/' }
	}
}

Step 3: Configure the security image, AppKey, and AppSecret

1. Log in to the Tuya IoT Development Platform, go to the SDK Development page, and then click the SDK to be managed.

2. On the page that appears, click the Get Key tab and click Download in the App Security Image for Android field.

   

3. Rename the security image as t_s.bmp and put the image in the assets folder of your project.

   

4. Return to the Android project, configure appkey and appSecret in AndroidManifest.xml, and then set permissions for the app.

   <meta-data
   android:name="TUYA_SMART_APPKEY"
   android:value="AppKey" />
   <meta-data
   android:name="TUYA_SMART_SECRET"
   android:value="AppSecret" />
   

Step 4: Obfuscate the code

Configure obfuscation in proguard-rules.pro.

#fastJson
-keep class com.alibaba.fastjson.**{*;}
-dontwarn com.alibaba.fastjson.**

#mqtt
-keep class com.tuya.smart.mqttclient.mqttv3.** { *; }
-dontwarn com.tuya.smart.mqttclient.mqttv3.**

#OkHttp3
-keep class okhttp3.** { *; }
-keep interface okhttp3.** { *; }
-dontwarn okhttp3.**

-keep class okio.** { *; }
-dontwarn okio.**

-keep class com.tuya.**{*;}
-dontwarn com.tuya.**

Step 5: Initialize the SDK

Initialize the SDK in Application. Make sure that all processes are initialized. Example:

public class TuyaSmartApp extends Application {
	@Override
	public void onCreate() {
		super.onCreate();
		TuyaHomeSdk.init(this);
	}
}

TuyaHomeSdk.init(Application application, String appkey, String appSerect)

Step 6: Disable the cloud connection

Before you exit the app, you must call the following operation to disable the cloud connection.

TuyaHomeSdk.onDestroy();

Step 7: Enable or disable logging

• In debug mode, you can enable SDK logging to facilitate troubleshooting.

• We recommend that you disable logging in release mode.

  TuyaHomeSdk.setDebugMode(true);
  

implementation("com.tuya.smart:tuyasmart:3.32.5"){
        exclude group: 'com.tuya.smart', module: 'tuyasmart-log'
    }

Run the demo app

In the following example, a demo app is used to describe the process of app development with the App SDK and indicate the SDK capabilities that you can integrate to implement smart life scenarios. Before the development of your app, we recommend that you run the demo app as needed.

Feature overview

The demo app supports the following features:

• User management: Register and log in to the app account by mobile phone number or email address.

• Home and device management

  • Create a home and switch between homes.
  • Display a list of devices in the home and control data points (DPs) of the devices.
  • Rename and remove devices.

• Pair devices: Multiple pairing methods are supported, including EZ Mode, AP Mode, Bluetooth Low Energy, Zigbee Gateway, Zigbee Subdevice, QR Code, and Bluetooth LE Mesh Sub Device.

  

For more information, see the GitHub projects tuya-home-android-sdk-sample-java or tuya-home-android-sdk-sample-kotlin.

Run the sample

1. Choose app > build.gradle and change the value of applicationId to your app package name.

   

2. Make sure that you have finished the operations in Step 3: Configure the security image, AppKey, and AppSecret.

3. Click Run to run the sample.

FAQs

SING_VALIDATE_FALED

• Troubleshoot the error message: Permission Verification Failed

  • Problem: When the system runs the demo app, an error message is returned in the following response:

  {
  	"success": false,
  	"errorCode" : "SING_VALIDATE_FALED",
  	"status" : "error",
  	"errorMsg" : "Permission Verification Failed",
  	"t" : 1583208740059
  }
  

  • Solutions:

    • Check whether your security image, AppKey, and AppSecret are correctly configured and consistent with those obtained in Preparation.
    • Check whether the security image is placed in the correct directory and whether the file name is t_s.bmp.

ILLEGAL_CLIENT_ID

• After the Smart Life App SDK for Android is updated to v3.29.5, an error message is returned to indicate an illegal client. How do I troubleshoot this problem? (ILLEGAL_CLIENT_ID)

  • Starting from the Smart Life App SDK for Android 3.29.5, data security is enhanced and SHA256 hash values are required.
  • You must follow the steps in the documentation to get the SHA256 hash values and add the hash values to the Tuya IoT Development Platform. For more information, see Preparation.

• Why has the error ILLEGAL_CLIENT_ID occurred after the upgrade to Smart Life App SDK 4.0.0?

  • Starting from the Smart Life App SDK 4.0.0, data security is enhanced.
  • The package name for Android configured on the Tuya IoT Development Platform must be the same as packageName in your project. Otherwise, the error ILLEGAL_CLIENT_ID will arise.

• After SHA256 hash values are configured on the Tuya IoT Development Platform and the sample is run, the error message that indicates an illegal client is still returned. How do I troubleshoot the problem?

  • Solution: Before you run the sample, add the following signature information to build.gradle of the app module.

    	android {
    			...
    			signingConfigs {
    			debug {
    				storeFile file('xxxx.jks')
    				storePassword 'xxxxxx'
    				keyAlias 'xxx'
    				keyPassword 'xxxxxx'
    			}
    			release {
    				storeFile file('xxxx.jks')
    				storePassword 'xxxxxx'
    				keyAlias 'xxx'
    				keyPassword 'xxxxxx'
    			}
    	}
    }