You aren’t doing anything wrong. In fact, you are doing everything correct. You are encountering a Device-Specific issue that is very prevalent in the Android world. I have found the following behavioral patterns for FLASH_MODE_TORCH: Works fine in all cases Works fine, but not with autofocus on Doesn’t work at all Frustratingly, getSupportedFlashModes() will return … Read more
Comment is lack of formatting so i add an answer. Check if your computer had your phone driver. I assume that your use Windows. Open Device Manager At a command prompt, in the Start Search box, or in the Run box, type the following command: mmc devmgmt.msc . Other ways : check link If you … Read more
I will soon released a new version of my app to support to galaxy ace. You can download here: https://play.google.com/store/apps/details?id=droid.pr.coolflashlightfree In order to solve your problem you should do this: this._camera = Camera.open(); this._camera.startPreview(); this._camera.autoFocus(new AutoFocusCallback() { public void onAutoFocus(boolean success, Camera camera) { } }); Parameters params = this._camera.getParameters(); params.setFlashMode(Parameters.FLASH_MODE_ON); this._camera.setParameters(params); params = this._camera.getParameters(); … Read more
You probably need to index your files via MediaScannerConnection. Quoting myself from a blog post from last year: …the MTP contents are not based on the literal contents of external storage. Instead, MTP contents are based on what files have been scanned by MediaScannerConnection. If you write a file to external storage, until and unless … Read more