Glide download image and save as file synchronously

Question

I'm trying to download an image from a URL using Glide and get the path of the file and forward it to WallpaperManager.getCropAndSetWallpaperIntent to be set as a wallpaper.

I found that this can be done using asFile method of Glide

Kotlin:

val data = Glide
    .with(context)
    .asFile()
    .load(url)
    .submit()

But when I call data.get() I get the error

java.lang.IllegalArgumentException: You must call this method on a background thread

So followed this answer and implemented MyAsyncTask

interface AsyncResponse {
    fun processFinish(output: File?)
}

class MyAsyncTask(delegate: AsyncResponse) : AsyncTask<FutureTarget<File>, Void, File?>() {
    override fun doInBackground(vararg p0: FutureTarget<File>?): File? {
        return p0[0]?.get()
    }

    private var delegate: AsyncResponse? = null

    init {
        this.delegate = delegate
    }

    override fun onPostExecute(result: File?) {
        delegate!!.processFinish(result)
    }
}

And I'm doing this now

fun getFile(context: Context, url: String) : File {
    val data = Glide
        .with(context)
        .asFile()
        .load(url)
        .submit()

    val asyncTask = MyAsyncTask(object : AsyncResponse {
        override fun processFinish(output: File?) {
            println(output?.path)
        }
    }).execute(data)

  return asyncTask.get()
}

But I can't seem to get the File

Edit: It was working but now there's a new error

 android.content.ActivityNotFoundException: No Activity found to handle Intent { act=android.service.wallpaper.CROP_AND_SET_WALLPAPER dat=content://com.rithvij.scrolltest.provider/cache/image_manager_disk_cache/efebce47b249d7d92fd17340ecf91eb6b7ff86f91d71aabf50468f9e74d0e324.0 flg=0x1 pkg=is.shortcut }

Full stack trace

E/AndroidRuntime: FATAL EXCEPTION: main
    Process: com.rithvij.scrolltest, PID: 2760
    android.content.ActivityNotFoundException: No Activity found to handle Intent { act=android.service.wallpaper.CROP_AND_SET_WALLPAPER dat=content://com.rithvij.scrolltest.provider/cache/image_manager_disk_cache/efebce47b249d7d92fd17340ecf91eb6b7ff86f91d71aabf50468f9e74d0e324.0 flg=0x1 pkg=is.shortcut }
        at android.app.Instrumentation.checkStartActivityResult(Instrumentation.java:1816)
        at android.app.Instrumentation.execStartActivity(Instrumentation.java:1525)
        at android.app.Activity.startActivityForResult(Activity.java:4396)
        at androidx.fragment.app.FragmentActivity.startActivityForResult(FragmentActivity.java:767)
        at android.app.Activity.startActivityForResult(Activity.java:4355)
        at androidx.fragment.app.FragmentActivity.startActivityForResult(FragmentActivity.java:754)
        at android.app.Activity.startActivity(Activity.java:4679)
        at android.app.Activity.startActivity(Activity.java:4647)
        at com.rithvij.scrolltest.MainActivity$onCreate$1.onClick(MainActivity.kt:71)
        at android.view.View.performClick(View.java:5619)
        at android.view.View$PerformClick.run(View.java:22298)
        at android.os.Handler.handleCallback(Handler.java:754)
        at android.os.Handler.dispatchMessage(Handler.java:95)
        at android.os.Looper.loop(Looper.java:165)
        at android.app.ActivityThread.main(ActivityThread.java:6375)
        at java.lang.reflect.Method.invoke(Native Method)
        at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:912)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:802)

Now my question is is this the preferred way to set wallpaper from a url?
How to deal with the other error?

what is the result of WallpaperManager.isWallpaperSupported() and isSetWallpaperAllowed() ? — Umar Hussain, Jul 12 '19 at 14:33
Yes, it is. I did request `SET_WALLPAPER` permission and it did work with other URIs eg: from a drawable — Phani Rithvij, Jul 12 '19 at 14:36
Then its most probably due to URI. Sharing file with other apps has changed in android and directly sharing url of file may not work. — Umar Hussain, Jul 12 '19 at 14:38
See this tutorial if your not following it already: https://developer.android.com/training/secure-file-sharing — Umar Hussain, Jul 12 '19 at 14:38
I did spend 3 hours on this to lose rep and gain nothing. thanks, people. — Phani Rithvij, Jul 12 '19 at 15:17

score 0 · Answer 1 · answered Jul 12 '19 at 14:32

0

Regarding your first question about getting image from url, instead of using asFile, it is recommended that you use the method downloadOnly(). Then, rather than using an AsyncTask, you can leverage a RequestListener to get an async callback when the resource is loaded.

As for your second question, you are broadcasting an Implicit Intent that is not registered by the OS or any apps on your device. Rather than broadcasting an intent, you can try leveraging the WallpaperManager System Service.

answered Jul 12 '19 at 14:32

Elli White

1,440
1
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I am using WallpaperManager as `wallpaperManager.getCropAndSetWallpaperIntent()` mentioned [here](https://developer.android.com/reference/android/app/WallpaperManager.html#getCropAndSetWallpaperIntent(android.net.Uri)) – Phani Rithvij Jul 12 '19 at 14:35
Is that an Implicit Intent that is not registered by the OS? – Phani Rithvij Jul 12 '19 at 14:37
I missed that part of your question, my apologies! – Elli White Jul 12 '19 at 15:30

score 0 · Accepted Answer · answered Jul 12 '19 at 15:14

Answering my own question

It is better to use downloadOnly() as suggested by Elli White here. But I wasted enough time on researching this question and I got a working solution so I decided not to start from scratch.
The error I got was because of the image file name that's being returned by Glide.

I fixed it by copying the file somewhere and using it as the source.

        val file = asyncTask.get()
//        copy file
        val tempFile = File.createTempFile("image", ".png")
        copyFile(file!!.inputStream(), FileOutputStream(tempFile))

And for my use case i.e. to set the image as wallpaper I need not worry about the file extension as long as I specify that it's an image .png in this case.

Glide download image and save as file synchronously

2 Answers2