Android上Google地图的动态API密钥

// Android端示例
Retrofit retrofit = new Retrofit.Builder()
    .baseUrl("https://your-api-server/")
    .addConverterFactory(GsonConverterFactory.create())
    .build();

MapService service = retrofit.create(MapService.class);
Call<ApiKeyResponse> call = service.getDynamicKey(deviceId);

call.enqueue(new Callback<ApiKeyResponse>() {
    @Override
    public void onResponse(Call<ApiKeyResponse> call, Response<ApiKeyResponse> response) {
        if (response.isSuccessful()) {
            String dynamicKey = response.body().key;
            // 使用动态密钥初始化地图
            MapsInitializer.initialize(context, dynamicKey, MapsInitializer.Renderer.LATEST);
        }
    }
});

fun generateDynamicKey(baseKey: String, deviceId: String): String {
    val combined = "$baseKey:$deviceId:${System.currentTimeMillis() / 3600000}"
    return SHA256.digest(combined).substring(0, 40)
}

# Flask示例
@app.route('/get_map_key')
def get_map_key():
    device_id = request.args.get('device_id')
    if not validate_device(device_id):
        return abort(403)
    
    key = generate_temporary_key(
        origin=request.headers.get('Origin'),
        expires=datetime.now() + timedelta(hours=1)
    )
    return jsonify({'key': key})

<!-- 在debug构建类型使用测试密钥 -->
buildTypes {
    debug {
        resValue "string", "google_maps_key", "TEST_KEY"
    }
    release {
        resValue "string", "google_maps_key", "${System.env.DYNAMIC_KEY}"
    }
}

客户端 → API网关 → 密钥管理服务 → Google Maps API
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