Question

build.gradel文件收到我的通知 minifyEnabled错误，但是只要我们更改了在已签名的发行版APK中未收到的 minifyEnabled true 通知。这是我的 build.gradel 文件

android {
    compileSdkVersion 28
defaultConfig {
    applicationId "com.abc.xyz.test"
    minSdkVersion 15
    targetSdkVersion 28
    versionCode 10
    versionName "1.0.8"
    multiDexEnabled true
    testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
    signingConfig signingConfigs.brand_champs
}
lintOptions {
    disable 'GoogleAppIndexingWarning'
    warningsAsErrors true
    checkReleaseBuilds false
}
dexOptions {
    javaMaxHeapSize "4g"
}
buildTypes {
    release {
        minifyEnabled true
        proguardFiles getDefaultProguardFile('proguard-android.txt'), 
 'proguard-rules.pro'
        debuggable false
        jniDebuggable false
        renderscriptDebuggable false
        zipAlignEnabled false
    }
    debug {
        debuggable true
        zipAlignEnabled false
        jniDebuggable false
        minifyEnabled false
    }
 }

}

Answer 1

要在设备上启用推送通知，必须先在FCM中注册它。这可以通过两种方式完成：您可以让设备直接向Ably注册自己，也可以将注册工作委托给您的应用服务器，然后由应用服务器代表其向Ably注册设备。一些代码在这里：

import io.ably.lib.realtime.AblyRealtime;

公共类MainActivity扩展了AppCompatActivity {

public static final int SUCCESS = 0;
public static final int FAILURE = 1;
public static final int UPDATE_LOGS = 2;

public static final String STEP_1 = "Initialize Ably";
public static final String STEP_2 = "Activate Push";
public static final String STEP_3 = "Subscribe Channels";
public static final String STEP_4 = "Send Test Push";

public static final String TEST_PUSH_CHANNEL_NAME = "test_push_channel";
//Ensure that ngrok is setup, or modify xml/network_security_config.xml accordingly.
private static final String PRIVATE_SERVER_AUTH_URL = 'YOUR SERVER URL' + "/auth";
private AblyRealtime ablyRealtime;

private String getClientId() {
    String clientId = Settings.Secure.getString(getContentResolver(), Settings.Secure.ANDROID_ID);
    return clientId;
}

private void initAblyRuntime() throws AblyException {
    ClientOptions options = new ClientOptions();
    options.environment = BuildConfig.ABLY_ENV;
    options.key = BuildConfig.ABLY_KEY;
    //Token auth via server
    options.authUrl = PRIVATE_SERVER_AUTH_URL;
    options.authParams = new Param[]{new Param("clientId", getClientId())};

    ablyRealtime = new AblyRealtime(options);
    ablyRealtime.setAndroidContext(getApplicationContext());
    ablyRealtime.connect();
    ablyRealtime.connection.on(new ConnectionStateListener() {
        @Override
        public void onConnectionStateChanged(ConnectionStateChange state) {
            logMessage("Connection state changed to : " + state.current.name());
            switch (state.current) {
                case connected:
                    /* Perform device registration and subscription, this is described later in the tutorial */
                    break;
                case disconnected:
                case failed:
                    //handle failure
                    break;
            }
        }
    });
}

}

如果您发现这很有趣，可以访问this

Answer 2

朋友们解决了上述问题，

此问题与类迁移或启用proguard时从代码中删除未使用的类有关。

我们将保留规则写入proguard文件中，并保留与通知相关的应用程序的所有模型

-keepclassmembers class com.xyz.test.model.** {
 *;
}

这是我的课程模型“ com.xyz.test.model。**”，根据您的ID和软件包名称，您可以使用任何其他课程

在Android中，“ minifyEnabled true”后未收到通知，为什么？

2 个答案: