Question

我正在YouTube视频下面的帮助下构建位置跟踪器应用。 “ https://www.youtube.com/watch?v=17HqLBkuX-E” 在build.gradle模块中，我替换了CardView和recyclerview行，而不是视频中的行，因为它们用红色下划线表示“根据androix进行更改”。这些是我用于cardview和recyclerview的代码

def make_masks(trainloader,cam_dict):
    masks=[]
    print('start->', masks)
    for idx, (img, target) in enumerate(trainloader):
        if idx==10:
            datapath = './datab2/gradcam_masks.h5py'
            masks_tensor = np.asarray(masks)
            print('maksks->',masks_tensor.shape)
            with h5py.File(datapath, 'w') as hf:
                hf.create_dataset('saliencys', data=masks)

            break
        torch_img, normed_torch_img = normalize_image(img.cuda())

        for gradcam, gradcam_pp in cam_dict.values():
            mask, _ = gradcam(normed_torch_img)
            # print('mask->',mask.shape)
            # mask = cv2.resize(mask[0], (224, 224))
            mask = mask.squeeze()
            # print('mask->',mask)
            heatmap, result = visualize_cam(mask, torch_img)
            # print('heatpmap->',heatmap.shape,'result->',result.shape)
            # images.append(torch.stack([torch_img.squeeze().cpu(), heatmap, result], 0))
            img = img.squeeze()
            img = (img).permute(1, 2, 0)
            print(mask.shape)
            masks.append(mask)
        if idx % 10000 == 0: print(idx, '/', trainloader.dataset.data.shape[0], '%')

并且我已经用

更改了布局文件

androidx.cardview.widget.CardView
implementation 'androidx.recyclerview:recyclerview:1.0.0'

尝试同步该错误时，出现标题错误。这是我的布局文件

<androidx.recyclerview.widget.RecyclerView
.
.
.
</androidx.recyclerview.widget.RecyclerView>

这是我的build.gradle（Project：）

<?xml version="1.0" encoding="utf-8"?>
<androidx.recyclerview.widget.RecyclerView
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".MainActivity">

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Hello World!"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintLeft_toLeftOf="parent"
        app:layout_constraintRight_toRightOf="parent"
        app:layout_constraintTop_toTopOf="parent" />

</androidx.recyclerview.widget.RecyclerView>

这是我的buld.gradle（Module：app）

// Top-level build file where you can add configuration options common to all sub-projects/modules.

buildscript {
    repositories {
        google()
        jcenter()

    }
    dependencies {
        classpath 'com.android.tools.build:gradle:3.5.1'
        classpath 'com.google.gms:google-services:4.2.0'

        // NOTE: Do not place your application dependencies here; they belong
        // in the individual module build.gradle files
    }
}

allprojects {
    repositories {
        google()
        jcenter()
        maven{
            url "https://maven.google.com"
        }
        maven{
            url "https://maven.fabric.io/public"
        }

    }
}

task clean(type: Delete) {
    delete rootProject.buildDir
}

Answer 1

从应用程序gradle文件中删除行androidx.cardview.widget.CardView（在依赖关系中）

Answer 2

实现'androidx.recyclerview：recyclerview：1.0.0'
实现'androidx.cardview：cardview：1.0.0'

您尚未添加实现前缀。您可以如上所述使用。

无法获得类型为org.gradle.api.internal.artifacts.dsl.dependencies.DefaultDependencyHandler的对象的未知属性“ androidx”

2 个答案: