android - 将图像从 URL 共享到其他应用程序

Question

不要把它当作重复..我已经尝试了每个链接，我将按照我到目前为止所尝试的内容进行展示

我将简要解释我的代码-->

从适配器获取图像到活动-->

     val bundle: Bundle = getIntent().getExtras()!!

     val imgUrl: String = bundle.getString("image")!!
     val imageUri = Uri.parse(imgUrl)

1-->>>

完整代码：--> 引用自--> https://stackoverflow.com/questions/49011212/sharing-image-using-intent-on-whats-app-getting-error-sharing-failed

 val bundle: Bundle = getIntent().getExtras()!!

                val imgUrl: String = bundle.getString("image")!!
                 val imageUri = Uri.parse(imgUrl)

                shareiamge.setOnClickListener {

                    shareImage(imageUri)
                      }
                    private fun shareImage(imagePath: Uri) {
    val sharingIntent = Intent(Intent.ACTION_SEND)
    sharingIntent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_WHEN_TASK_RESET)
    sharingIntent.type = "image/*"
    sharingIntent.putExtra(Intent.EXTRA_STREAM, imagePath)
    //sharingIntent.setPackage("com.whatsapp"); for whatsapp only
    startActivity(
        Intent.createChooser(
            sharingIntent,
            "Share Image Using"
        )
    ) // for all generic options
}

清单-->

 <activity
        android:name=".ProductDetails.Product_details"
        android:launchMode="singleInstance" >
        <intent-filter>
            <action android:name="android.intent.action.SEND" /> <!-- Send
     action required to display activity in share list -->
            <category android:name="android.intent.category.DEFAULT" /> <!--
      Make activity default to launch -->
            <!-- Mime type i.e. what can be shared with this activity only image and text -->
            <data android:mimeType="image/*" />
            <data android:mimeType="text/*" />
        </intent-filter>
    </activity>

上面的代码输出：-->

分享到 whatsapp 或任何应用程序时，不支持文件格式

2--->>>引用自此-->>> 在 Android 中的 Whatsapp 上分享文本或图像

               shareiamge.setOnClickListener {


                    val whatsappIntent = Intent(Intent.ACTION_SEND)
                    whatsappIntent.type = "image/*"
                    whatsappIntent.putExtra(
                        Intent.EXTRA_STREAM,
                        imageUri
                    ) //add image path

                    startActivity(Intent.createChooser(whatsappIntent, "Share image using"))
               }

上面的代码输出：-->

分享到 whatsapp 或任何应用程序时，不支持文件格式

3-->>>

                val bundle: Bundle = getIntent().getExtras()!!

                val imgUrl: String = bundle.getString("image")!!
                val imageUri = Uri.parse(imgUrl)

                shareiamge.setOnClickListener {


                    val whatsappIntent = Intent(Intent.ACTION_SEND)
                    whatsappIntent.type = "image/*"
                    whatsappIntent.putExtra(
                        Intent.EXTRA_STREAM,
                        Uri.parse(res?.body()!!.data.product_images.get(0).image)
                    ) //direct image from retrofit response

                    startActivity(Intent.createChooser(whatsappIntent, "Share image using"))

上面的代码输出：-->

分享到 whatsapp 或任何应用程序时，不支持文件格式

4-->>引用自此--> https://stackoverflow.com/a/25136183/12553303

val bundle: Bundle = getIntent().getExtras()!!

                val imgUrl: String = bundle.getString("image")!!
                val imageUri = Uri.parse(imgUrl)

                shareiamge.setOnClickListener {
                    val intent = Intent(Intent.ACTION_SEND)
                    intent.putExtra(Intent.EXTRA_TEXT, "Hey view/download this image")
                    val path: String =
                        MediaStore.Images.Media.getContentUri(imgUrl).toString()
                    val screenshotUri = Uri.parse(path)

                    intent.putExtra(Intent.EXTRA_STREAM, screenshotUri)
                    intent.type = "image/*"
                    startActivity(Intent.createChooser(intent, "Share image via..."))

上面的代码输出：-->

分享到 whatsapp 或任何应用时 --> 分享失败，请稍后再试

5-->但它只分享文本而不是图像

                   val sendIntent = Intent()
                    sendIntent.action = Intent.ACTION_SEND
                    sendIntent.putExtra(Intent.EXTRA_TEXT, imgUrl)
                    sendIntent.type = "text/plain"
                    startActivity(sendIntent)

日志中的值：-

   Log.e("imgUrl",imgUrl)
   Log.e("imageUri", imageUri.toString())

E/imgUrl: http://....../uploads/prod_img/thumb/medium/9dc6234da018916e545011fa1.jpeg
E/imageUri: http://..../uploads/prod_img/thumb/medium/9dc6234da018916e545011fa1.jpeg

我想分享一张图片需要帮助提前谢谢

标签： androidimagekotlinandroid-intentshare

Answer 1

您必须从 url 构建内容 URI。有几种方法可以做到这一点。

一种方法是构建从 url 下载图像并从下载的文件构建 URI。

如果您使用Glide从 url 加载图像，则可以通过以下方式完成：

Glide.with(context).asBitmap().load(photoUrl)
        .into(object: CustomTarget<Bitmap>() {

            override fun onLoadCleared(placeholder: Drawable?) {
                // do your stuff, you can load placeholder image here
            }

            override fun onResourceReady(resource: Bitmap, transition: Transition<in Bitmap>?) {


                val cachePath = File(context.cacheDir, "images")
                cachePath.mkdirs() // don't forget to make the directory
                val stream = FileOutputStream(cachePath.toString() + "/image.png") // overwrites this image every time
                resource.compress(Bitmap.CompressFormat.PNG, 100, stream)
                stream.close()

                val imagePath = File(context.cacheDir, "images")
                val newFile = File(imagePath, "image.png")
                val contentUri: Uri = FileProvider.getUriForFile(context, "${BuildConfig.APPLICATION_ID}.provider", newFile)

                val intent = Intent(Intent.ACTION_SEND)
                intent.type = "image/*"
                intent.putExtra(Intent.EXTRA_STREAM, contentUri)
                context.startActivity(Intent.createChooser(intent, "Choose..."))

            }
        })

不要忘记provider在清单中添加：

    <provider
        android:name="androidx.core.content.FileProvider"
        android:authorities="${applicationId}.provider"
        android:exported="false"
        android:grantUriPermissions="true">
        <meta-data
            android:name="android.support.FILE_PROVIDER_PATHS"
            android:resource="@xml/provider_paths" />
    </provider>

并且在provider_paths

<paths xmlns:android="http://schemas.android.com/apk/res/android">
    <cache-path name="cache" path="/" />
</paths>