In Android, Is It Possible To Capture Screenshots From Service

I'm developing an Android application to capture screenshots. What I'm trying to do is make a service with a button on the top of the screen and taking screenshot by tapping it. I

Solution 1:

Here is the code that allowed my screenshot to be stored on sd card and used later for whatever your needs are:

First, add proper permission to save file:

<uses-permissionandroid:name="android.permission.WRITE_EXTERNAL_STORAGE"/>

And this is the code (running in an Activity):

privatevoidtakeScreenshot() {
    Datenow=newDate();
    android.text.format.DateFormat.format("yyyy-MM-dd_hh:mm:ss", now);

    try {
        // image naming and path  to include sd card  appending name you choose for fileStringmPath= Environment.getExternalStorageDirectory().toString() + "/" + now + ".jpg";

        // create bitmap screen captureViewv1= getWindow().getDecorView().getRootView();
        v1.setDrawingCacheEnabled(true);
        Bitmapbitmap= Bitmap.createBitmap(v1.getDrawingCache());
        v1.setDrawingCacheEnabled(false);

        FileimageFile=newFile(mPath);

        FileOutputStreamoutputStream=newFileOutputStream(imageFile);
        intquality=100;
        bitmap.compress(Bitmap.CompressFormat.JPEG, quality, outputStream);
        outputStream.flush();
        outputStream.close();

        openScreenshot(imageFile);
    } catch (Throwable e) {
        // Several error may come out with file handling or OOM
        e.printStackTrace();
    }
}

And this is how you can open the recently generated image:

privatevoidopenScreenshot(File imageFile) {
    Intentintent=newIntent();
    intent.setAction(Intent.ACTION_VIEW);
    Uriuri= Uri.fromFile(imageFile);
    intent.setDataAndType(uri, "image/*");
    startActivity(intent);
}

to exclude the button, you can make button hide and then take screen show after some time interval.