Question

当我从MyActivity中的java方法返回一个字符串时，我可以用

打印它

QAndroidJniObject asdf = QtAndroid::androidActivity().callObjectMethod("getPath", "(I)Ljava/lang/String;", 10)

qInfo() << asdf.toString();

但是如果我想返回一个数组怎么办？如何使用C ++操作它以及如何将其打印出来？

public class MyActivity extends QtActivity
{

    private String [] imagePaths = new String[100];

    @Override
    public void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

       //some code
    }

    public String [] getPath (int index) {

        /*some code*/
        return imagePaths;
    }
}

Answer 1

为您的任务更好地使用

jobjectArray asdf = QtAndroid::androidActivity()
        .callMethod<jobjectArray>("getPath", "(I)Ljava/lang/String;", 10);

相反

QAndroidJniObject asdf = QtAndroid::androidActivity()
        .callObjectMethod("getPath", "(I)Ljava/lang/String;", 10)

操作QAndroidJniObject数组

1 个答案: