String clientkey = "xxxxxx"; // 需要到开发者网站申请
  DouYinOpenApiFactory.init(new DouYinOpenConfig(clientkey));

<uses-permission android:name="android.permission.INTERNET" />
<activity
    android:name=".douyinapi.DouYinEntryActivity"
    android:launchMode="singleTask"
    android:taskAffinity="你的包名"
    android:exported="true">
</activity>

        DouYinOpenApi douyinOpenApi = DouYinOpenApiFactory.create(this);

        Authorization.Request request = new Authorization.Request();
        request.scope = "user_info";                          // 用户授权时必选权限
        //request.state = "ww";                                 // 用于保持请求和回调的状态，授权请求后原样带回给第三方。
        //request.callerLocalEntry = "com.xxx.xxx...activity"; 
        return douyinOpenApi.authorize(request);                    // 优先使用抖音app进行授权，如果抖音app因版本或者其他原因无法授权，则使用web页授权

public class DouYinEntryActivity extends Activity implements IApiEventHandler {

    DouYinOpenApi douYinOpenApi;

    @Override
    public void onCreate(@Nullable Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        douYinOpenApi = DouYinOpenApiFactory.create(this);
        douYinOpenApi.handleIntent(getIntent(), this);
    }

    @Override
    public void onReq(BaseReq req) {

    }

    @Override
    public void onResp(BaseResp resp) {
        // 授权成功可以获得authCode
        if (resp.getType() == CommonConstants.ModeType.SEND_AUTH_RESPONSE) {
            Authorization.Response response = (Authorization.Response) resp;
            if (resp.isSuccess()) {
                Toast.makeText(this, "授权成功，获得权限：" + response.grantedPermissions,
                        Toast.LENGTH_LONG).show();

            } else {
                Toast.makeText(this, "授权失败" + response.grantedPermissions,
                        Toast.LENGTH_LONG).show();
            }
            finish();
        }
    }

    @Override
    public void onErrorIntent(@Nullable Intent intent) {
        // 错误数据
        Toast.makeText(this, "intent出错啦", Toast.LENGTH_LONG).show();
        finish();
    }

dependencies {
    implementation 'com.bytedance.ies.ugc.aweme:opensdk-china-external:0.1.1.0'
    implementation 'com.bytedance.ies.ugc.aweme:opensdk-common:0.1.1.0'
}