public string queueAll()
{
var columns = new [] { KEY_CONTENT };
Cursor cursor = sqLiteDatabase.query(MYDATABASE_TABLE, columns,
null, null, null, null, null);
var result = new java.lang.StringBuilder();
int index_CONTENT = cursor.getColumnIndex(KEY_CONTENT);
for (cursor.moveToFirst(); !(cursor.isAfterLast()); cursor.moveToNext())
{
result.append( cursor.getString(index_CONTENT)).append( "\n");
}
return result.ToAndroidString();
}
static ApplicationWebService_poll_onnfc()
{
// http://lifehacker.com/run-an-action-when-you-remove-your-phone-from-an-nfc-ta-1208446359
// https://groups.google.com/forum/#!topic/android-developers/8-17f6ZLYJY
// enter ApplicationWebService { ManagedThreadId = 2029 }
Console.WriteLine("enter ApplicationWebService_poll_onnfc " + new { Thread.CurrentThread.ManagedThreadId });
// http://mobile.tutsplus.com/tutorials/android/reading-nfc-tags-with-android/
// http://stackoverflow.com/questions/10848134/android-on-nfc-read-close-activity-not-the-main-activity
// http://stackoverflow.com/questions/17989055/nfc-not-able-to-detect-a-tag
// http://stackoverflow.com/questions/5685946/nfc-broadcastreceiver-problem
var activity = ScriptCoreLib.Android.ThreadLocalContextReference.CurrentContext as ScriptCoreLib.Android.CoreAndroidWebServiceActivity;
var adapter = android.nfc.NfcAdapter.getDefaultAdapter(
activity
);
var isEnabled = adapter.isEnabled();
Console.WriteLine(new { isEnabled });
var intent = new Intent(
activity,
activity.GetType().ToClass()
);
intent.addFlags(Intent.FLAG_ACTIVITY_SINGLE_TOP);
var pendingIntent = PendingIntent.getActivity(
activity,
0,
intent,
0
);
var filters = new IntentFilter[1];
var techList = new[]
{
// [android.nfc.tech.MifareClassic, android.nfc.tech.NfcA, android.nfc.tech.Ndef]
// dispatch tag: TAG: Tech [android.nfc.tech.MifareClassic, android.nfc.tech.NfcA, android.nfc.tech.NdefFormatable] message: null
new [] { typeof(android.nfc.tech.MifareClassic).FullName },
new [] { typeof(android.nfc.tech.NfcA).FullName},
new [] { typeof(android.nfc.tech.Ndef).FullName},
new [] { typeof(android.nfc.tech.NdefFormatable).FullName },
// current javacards? (ISO 14443-4)
new [] { typeof(android.nfc.tech.IsoDep).FullName },
};
// http://124.16.139.131:24080/lxr/source/packages/apps/Nfc/src/com/android/nfc/NfcDispatcher.java?v=android-4.0.4
//String[][] techList = new String[][] { new String[] { NfcA.class.getName(),
//NfcB.class.getName(), NfcF.class.getName(),
//NfcV.class.getName(), IsoDep.class.getName(),
//MifareClassic.class.getName(),
//MifareUltralight.class.getName(), Ndef.class.getName() } };
// Notice that this is the same filter as in our manifest.
filters[0] = new IntentFilter();
// https://code.google.com/p/android/issues/detail?id=37673
// http://www.xda-developers.com/android/activate-actions-upon-removal-of-nfc-tags/
//filters[0].addAction(NfcAdapter.ACTION_TAG_LOST);
// https://android.googlesource.com/platform/frameworks/base.git/+/android-4.2.2_r1/core/java/android/nfc/NfcAdapter.java
filters[0].addAction("android.nfc.action.TAG_LOST");
filters[0].addAction(NfcAdapter.ACTION_NDEF_DISCOVERED);
filters[0].addAction(NfcAdapter.ACTION_TAG_DISCOVERED);
filters[0].addAction(NfcAdapter.ACTION_TECH_DISCOVERED);
filters[0].addCategory(Intent.CATEGORY_DEFAULT);
//V:\src\AndroidNFCExperiment\ApplicationWebService.java:57: unreported exception android.content.IntentFilter.MalformedMimeTypeException; must be caught or declared to be thrown
try
{
filters[0].addDataType("*/*");
}
catch
{
throw;
}
activity.AtNewIntent +=
i =>
{
var action = i.getAction();
Console.WriteLine("AtNewIntent " + new { action });
//I/System.Console(25300): AtNewIntent { action = android.nfc.action.TECH_DISCOVERED }
if (action == NfcAdapter.ACTION_TECH_DISCOVERED)
{
// U:\src\AndroidNFCExperiment\ApplicationWebService___c__DisplayClass4.java:93: <identifier> expected
//private static Tag _<.cctor>b__0_Isinst_0064(Object _0064)
// ^
// I/System.Console(26970): AtPause
//D/NfcDispatcher( 747): Set Foreground Dispatch
//I/System.Console(26970): AtNewIntent { action = android.nfc.action.TECH_DISCOVERED }
//I/System.Console(26970): AtNewIntent { action = android.nfc.action.TECH_DISCOVERED, tag = }
//D/AndroidRuntime(26970): Shutting down VM
//W/dalvikvm(26970): threadid=1: thread exiting with uncaught exception (group=0x419dc700)
//I/ActivityManager( 440): START u0 {act=android.nfc.action.TECH_DISCOVERED flg=0x20000000 cmp=AndroidNFCExperiment.Activities/.ApplicationWebServiceActivity (has extras)} from pid -1
//W/ActivityManager( 440): startActivity called from non-Activity context; forcing Intent.FLAG_ACTIVITY_NEW_TASK for: Intent { act=android.nfc.action.TECH_DISCOVERED flg=0x20000000 cmp=AndroidNFCExperiment.Activities/.ApplicationWebServiceActivity (has extras) }
//var tag = (Tag)intent.getParcelableExtra(NfcAdapter.EXTRA_TAG);
//Console.WriteLine("AtNewIntent " + new { action, tag });
// D/NfcDispatcher( 747): dispatch tag: TAG: Tech [android.nfc.tech.MifareClassic, android.nfc.tech.NfcA, android.nfc.tech.Ndef]
// message: NdefMessage
// [NdefRecord tnf=4 type=70696C65742E65653A656B616172743A32 payload=66195F26063133303130385904202020205F28033233335F2701316E1B5A13333038363439303039303030333032313336315304FDCCD727,
// NdefRecord tnf=1 type=536967 payload=01020080B489DEDA8C2271386B7962250063A7C7C8612C3D58C8CD44D674F9D1615E80C72D961F8AC822C3188D48EFC7DA9DA3FF5C306E1EF54E0610F66D1C891CC59428A27CAA4211D4040527CF9BCD16F20E0B3116966AFC2390B7EF30CCC877B8532281CA3CBE286D295AECEA4447FD62874872A46099D6CEED99ED6766B829FD3FDF800025687474703A2F2F70696C65742E65652F6372742F33303836343930302D303030312E637274
// ]
// I/ActivityManager( 440): START u0 {act=android.nfc.action.TECH_DISCOVERED flg=0x20000000 cmp=AndroidNFCExperiment.Activities/.ApplicationWebServiceActivity (has extras)} from pid -1
//W/ActivityManager( 440): startActivity called from non-Activity context; forcing Intent.FLAG_ACTIVITY_NEW_TASK for: Intent { act=android.nfc.action.TECH_DISCOVERED flg=0x20000000 cmp=AndroidNFCExperiment.Activities/.ApplicationWebServiceActivity (has extras) }
//I/System.Console(30978): AtNewIntent { action = android.nfc.action.TECH_DISCOVERED }
//I/NfcDispatcher( 747): matched TECH override
//I/System.Console(30978): AtNewIntent { action = android.nfc.action.TECH_DISCOVERED, current = android.nfc.extra.TAG }
//I/System.Console(30978): AtNewIntent { action = android.nfc.action.TECH_DISCOVERED, current = android.nfc.extra.TAG, p = TAG: Tech [android.nfc.tech.MifareClassic, android.nfc.tech.NfcA, android.nfc.tech.NdefFormatable], FullName = android.nfc.Tag }
//I/System.Console(30978): AtNewIntent { action = android.nfc.action.TECH_DISCOVERED, current = android.nfc.extra.ID }
//I/System.Console(30978): AtNewIntent { action = android.nfc.action.TECH_DISCOVERED, current = android.nfc.extra.ID, p = [B@4212cfc8, FullName = [B }
//I/System.Console(30978): AtNewIntent { action = android.nfc.action.TECH_DISCOVERED, current = android.nfc.extra.ID, p = [B@4212cfc8, FullName = [B, HexString = fc4969f9 }
//I/System.Console(30978): AtResume
// https://groups.google.com/forum/#!topic/android-developers/8-17f6ZLYJY
//http://stackoverflow.com/questions/9009043/android-nfc-intercept-all-tags
var extras = i.getExtras();
var ks = extras.keySet();
var iterator = ks.iterator();
while (iterator.hasNext())
{
var current = (string)iterator.next();
Console.WriteLine("AtNewIntent " + new { action, current });
// I/System.Console(29237): AtNewIntent { action = android.nfc.action.TECH_DISCOVERED, current = android.nfc.extra.TAG, p = TAG: Tech [android.nfc.tech.MifareClassic, android.nfc.tech.NfcA, android.nfc.tech.Ndef], FullName = android.nfc.Tag }
// http://stackoverflow.com/questions/5968896/listing-all-extras-of-an-intent
extras.get(current).With(
p =>
{
Console.WriteLine("AtNewIntent " + new { action, current, p, p.GetType().FullName });
(p as Tag).With(
tag =>
{
var id = (byte[])(object)tag.getId();
Console.WriteLine("AtNewIntent " + new { action, current, id = id.ToHexString(), Thread.CurrentThread.ManagedThreadId });
History.Add(
id.ToHexString()
);
//I/System.Console(32331): AtNewIntent { action = android.nfc.action.TECH_DISCOVERED, current = android.nfc.extra.TAG, p = TAG: Tech [android.nfc.tech.MifareClassic, android.nfc.tech.NfcA, android.nfc.tech.Ndef], id = fdccd727, tech = android.nfc.tech.MifareClassic }
//I/System.Console(32331): AtNewIntent { action = android.nfc.action.TECH_DISCOVERED, current = android.nfc.extra.TAG, p = TAG: Tech [android.nfc.tech.MifareClassic, android.nfc.tech.NfcA, android.nfc.tech.Ndef], id = fdccd727, tech = android.nfc.tech.NfcA }
//I/System.Console(32331): AtNewIntent { action = android.nfc.action.TECH_DISCOVERED, current = android.nfc.extra.TAG, p = TAG: Tech [android.nfc.tech.MifareClassic, android.nfc.tech.NfcA, android.nfc.tech.Ndef], id = fdccd727, tech = android.nfc.tech.Ndef }
//I/System.Console(32331): AtNewIntent { action = android.nfc.action.TECH_DISCOVERED, current = android.nfc.extra.TAG, p = TAG: Tech [android.nfc.tech.MifareClassic, android.nfc.tech.NfcA, android.nfc.tech.NdefFormatable], id = fc4969f9, tech = android.nfc.tech.MifareClassic }
//I/System.Console(32331): AtNewIntent { action = android.nfc.action.TECH_DISCOVERED, current = android.nfc.extra.TAG, p = TAG: Tech [android.nfc.tech.MifareClassic, android.nfc.tech.NfcA, android.nfc.tech.NdefFormatable], id = fc4969f9, tech = android.nfc.tech.NfcA }
//I/System.Console(32331): AtNewIntent { action = android.nfc.action.TECH_DISCOVERED, current = android.nfc.extra.TAG, p = TAG: Tech [android.nfc.tech.MifareClassic, android.nfc.tech.NfcA, android.nfc.tech.NdefFormatable], id = fc4969f9, tech = android.nfc.tech.NdefFormatable }
tag.getTechList().WithEach(
tech =>
{
Console.WriteLine("AtNewIntent " + new { action, current, id = id.ToHexString(), tech });
if (tech == typeof(android.nfc.tech.MifareClassic).FullName)
{
android.nfc.tech.MifareClassic.get(tag).With(
m =>
{
}
);
}
if (tech == typeof(android.nfc.tech.NfcA).FullName)
{
android.nfc.tech.NfcA.get(tag).With(
m =>
{
}
);
}
}
);
//tag.
}
);
(p as byte[]).With(
bytes =>
{
var HexString = bytes.ToHexString();
Console.WriteLine("AtNewIntent " + new { action, current, p, p.GetType().FullName, HexString });
}
);
// https://android.googlesource.com/platform/packages/apps/Nfc/+/android-4.2.1_r1.2/nci/src/com/android/nfc/dhimpl/NativeNfcTag.java
//(p as android.os.Parcelable[]).With(
// m =>
// {
// Console.WriteLine("AtNewIntent " + new { action, current, records = m.getRecords().Length });
// m.getRecords().WithEach(
// r =>
// {
// Console.WriteLine("AtNewIntent " + new { action, current, id = ((byte[])(object)r.getId()).ToHexString() });
// }
// );
// }
// );
}
);
}
// I/System.Console(29527): AtNewIntent { action = android.nfc.action.TECH_DISCOVERED }
//I/System.Console(29527): AtNewIntent { action = android.nfc.action.TECH_DISCOVERED, current = android.nfc.extra.TAG }
//I/System.Console(29527): AtNewIntent { action = android.nfc.action.TECH_DISCOVERED, current = android.nfc.extra.TAG, p = TAG: Tech [android.nfc.tech.MifareClassic, android.nfc.tech.NfcA, android.nfc.tech.Ndef], FullName = android.nfc.Tag }
//I/System.Console(29527): AtNewIntent { action = android.nfc.action.TECH_DISCOVERED, current = android.nfc.extra.ID }
//I/System.Console(29527): AtNewIntent { action = android.nfc.action.TECH_DISCOVERED, current = android.nfc.extra.ID, p = [B@42156c88, FullName = [B }
//I/System.Console(29527): AtNewIntent { action = android.nfc.action.TECH_DISCOVERED, current = android.nfc.extra.NDEF_MESSAGES }
//I/System.Console(29527): AtNewIntent { action = android.nfc.action.TECH_DISCOVERED, current = android.nfc.extra.NDEF_MESSAGES, p = [Landroid.os.Parcelable;@42156e98, FullName = [Landroid.os.Parcelable; }
//I/System.Console(29527): AtResume
// I/System.Console(28867): AtNewIntent { action = android.nfc.action.TECH_DISCOVERED }
//I/System.Console(28867): AtNewIntent { action = android.nfc.action.TECH_DISCOVERED, current = android.nfc.extra.TAG }
//I/System.Console(28867): AtNewIntent { action = android.nfc.action.TECH_DISCOVERED, current = android.nfc.extra.ID }
//I/System.Console(28867): AtNewIntent { action = android.nfc.action.TECH_DISCOVERED, current = android.nfc.extra.NDEF_MESSAGES }
//var id = tag.getId();
//Console.WriteLine("AtNewIntent " + new { action, tag, id.Length, id = ((byte[])(object)id).ToHexString() });
//tag.getTechList().WithEach(
// tech =>
// {
// Console.WriteLine("AtNewIntent " + new { action, tech });
// }
//);
//tag.get
}
};
// who is using it?
activity.AtResume +=
delegate
{
Console.WriteLine();
Console.WriteLine();
Console.WriteLine("AtResume");
Console.WriteLine();
adapter.enableForegroundDispatch(activity, pendingIntent, filters, techList);
};
Console.WriteLine();
Console.WriteLine();
Console.WriteLine("before enableForegroundDispatch");
adapter.enableForegroundDispatch(activity, pendingIntent, filters, techList);
activity.AtPause +=
delegate
{
Console.WriteLine();
Console.WriteLine();
Console.WriteLine("AtPause");
adapter.disableForegroundDispatch(activity);
};
}
// can we send a zip file?
public static void Invoke(int index, Action<string> y, int frames = 4)
{
#region log
var st = new Stopwatch();
st.Start();
Action<string> log =
x =>
{
var z = (st.Elapsed + " " + x);
Console.WriteLine(z);
y(z);
};
#endregion
log("getting ready...");
var DIRECTORY_DCIM = global::android.os.Environment.DIRECTORY_DCIM;
var path = global::android.os.Environment.getExternalStoragePublicDirectory(DIRECTORY_DCIM).getAbsolutePath();
path += "/Camera";
//var n = DateTime.Now;
//var f = new java.io.File(path + "/shot" + n.Ticks + ".jpg");
var camera = default(android.hardware.Camera);
var surface = default(SurfaceView);
try
{
// PreviewCallbackWithBuffer { cc = 0, Length = 1048576 }
// W/CameraService( 84): CameraService::connect X (pid 2117) rejected (existing client).
log("android.hardware.Camera.open... " + new { index });
camera = android.hardware.Camera.open(index);
log("android.hardware.Camera.open... done ");
var PreviewFormat = ImageFormat.UNKNOWN;
#region setParameters
var p = camera.getParameters();
// The size of the buffer must match the values described above.
// Gets the supported preview formats. NV21 is always supported.
// http://developer.android.com/reference/android/hardware/Camera.Parameters.html#getSupportedPreviewFormats()
#region SupportedPictureFormat
foreach (int SupportedPictureFormat in p.getSupportedPictureFormats().AsEnumerable())
{
Console.WriteLine(new { SupportedPictureFormat });
}
//p.getSupportedPictureFormats().With(
// pformats =>
// {
// for (int i = 0; i < pformats.size(); i++)
// {
// var SupportedPictureFormat = (int)pformats.get(i);
// Console.WriteLine(new { SupportedPictureFormat });
// }
// }
// );
#endregion
#region SupportedPreviewFormat
foreach (int SupportedPreviewFormat in p.getSupportedPreviewFormats().AsEnumerable())
{
if (SupportedPreviewFormat == ImageFormat.NV21)
PreviewFormat = SupportedPreviewFormat;
else if (PreviewFormat == ImageFormat.UNKNOWN)
PreviewFormat = SupportedPreviewFormat;
log("" + new { SupportedPreviewFormat });
Console.WriteLine(new { SupportedPreviewFormat });
}
//p.getSupportedPreviewFormats().With(
// pformats =>
// {
// for (int i = 0; i < pformats.size(); i++)
// {
// var SupportedPreviewFormat = (int)pformats.get(i);
// if (SupportedPreviewFormat == ImageFormat.NV21)
// PreviewFormat = SupportedPreviewFormat;
// else if (PreviewFormat == ImageFormat.UNKNOWN)
// PreviewFormat = SupportedPreviewFormat;
// log("" + new { SupportedPreviewFormat });
// }
// }
//);
#endregion
//p.setPictureFormat(ImageFormat.YV12);
p.setPreviewFormat(PreviewFormat);
//D/DOMX ( 127): ERROR: failed check:(eError == OMX_ErrorNone) || (eError == OMX_ErrorNoMore) - returning error: 0x80001005 - Error returned from OMX API in ducati
//E/CameraHAL( 127): Error while configuring rotation 0x80001005
// http://questiontrack.com/galaxy-nexus-specificaly-camera-startpreview-failed-993603.html
// http://stackoverflow.com/questions/16839869/orientation-error-causing-crash
////p.setRotation(0);
#region getSupportedPreviewSizes
//var s = p.getSupportedPreviewSizes();
var min = default(android.hardware.Camera.Size);
//for (int i = 0; i < s.size(); i++)
foreach (android.hardware.Camera.Size size in p.getSupportedPreviewSizes().AsEnumerable())
{
//var size = (android.hardware.Camera.Size)s.get(i);
// I/System.Console( 6058): before takePicture { f = /mnt/sdcard/Pictures/shot.jpg }
//I/System.Console( 6058): { size = android.hardware.Camera$Size@4fde180 }
var SupportedPreviewSize = new { size.width, size.height };
log("" + new { SupportedPreviewSize });
if (min == null)
min = size;
else if (min.width > size.width)
min = size;
}
#endregion
p.setPreviewSize(min.width, min.height);
//For formats besides YV12, the size of the buffer is determined by multiplying the
// preview image width, height, and bytes per pixel. The width and height can be read
// from getPreviewSize(). Bytes per pixel can be computed from getBitsPerPixel(int) / 8,
// using the image format from getPreviewFormat().
//p.setPictureSize(min.width, min.height);
// I/System.Console( 2860): { width = 640, height = 480, bytesperpixel = 0, buffersize = 0 }
// the number of bits per pixel of the given format or -1 if the format doesn't exist or is not supported.
//var bytesperpixel = (ImageFormat.getBitsPerPixel(ImageFormat.NV21) / 8);
// http://stackoverflow.com/questions/13703596/mediacodec-and-camera-colorspaces-dont-match
// https://code.google.com/p/android/issues/detail?id=37655
var bitsperpixel = (ImageFormat.getBitsPerPixel(PreviewFormat));
var buffersize = min.width * min.height / 8 * bitsperpixel;
// 12
// http://www.fourcc.org/yuv.php
//var buffersize = 460800;
log("" + new { min.width, min.height, bitsperpixel, buffersize });
#region setFocusMode
var focusModes = p.getSupportedFocusModes();
var NextFocus = android.hardware.Camera.Parameters.FOCUS_MODE_FIXED;
for (int i = 0; i < focusModes.size(); i++)
{
var focusMode = (string)focusModes.get(i);
if (focusMode == android.hardware.Camera.Parameters.FOCUS_MODE_INFINITY)
NextFocus = android.hardware.Camera.Parameters.FOCUS_MODE_INFINITY;
System.Console.WriteLine(new { focusMode });
}
p.setFocusMode(NextFocus);
#endregion
camera.setParameters(p);
#endregion
// preview layout size: 736/1216
buffersize = 1843200;
// E/Camera-JNI( 3148): Manually set buffer was too small! Expected 460800 bytes, but got 307200!
camera.addCallbackBuffer(new sbyte[buffersize]);
camera.addCallbackBuffer(new sbyte[buffersize]);
camera.addCallbackBuffer(new sbyte[buffersize]);
camera.addCallbackBuffer(new sbyte[buffersize]);
camera.addCallbackBuffer(new sbyte[buffersize]);
var a = new EventWaitHandle(false, EventResetMode.ManualReset);
// Task.ContinueWith
// await
(ScriptCoreLib.Android.ThreadLocalContextReference.CurrentContext as Activity).StartNew(
aa =>
{
log("at runOnUiThread...");
// solve issue with callback not being called: release the camera and try again. It usually works.
//To solve issue with rotation 0x80001005: restart app / service
// http://stackoverflow.com/questions/13546788/camera-takepicture-not-working-on-my-jb-gb-froyo-phones
aa.setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE);
#region setErrorCallback
camera.setErrorCallback(
new XErrorCallback
{
yield = (err, c) =>
{
log("" + new { err });
}
}
);
#endregion
surface = new SurfaceView(ScriptCoreLib.Android.ThreadLocalContextReference.CurrentContext);
var holder = surface.getHolder();
// http://developer.android.com/reference/android/view/SurfaceHolder.html#SURFACE_TYPE_PUSH_BUFFERS
var SURFACE_TYPE_PUSH_BUFFERS = 0x00000003;
holder.setType(SURFACE_TYPE_PUSH_BUFFERS);
log("setPreviewCallbackWithBuffer");
var cc = 0;
//E/CameraHardwareSec( 84): int android::CameraHardwareSec::previewThread(): mSkipFrame(3) > 0
//E/CameraHardwareSec( 84): int android::CameraHardwareSec::previewThread(): mSkipFrame(2) > 0
//E/CameraHardwareSec( 84): int android::CameraHardwareSec::previewThread(): mSkipFrame(1) > 0
// http://stackoverflow.com/questions/16878042/camera-not-working-in-google-nexus-tablet
#region camera.PreviewCallbackWithBuffer
camera.PreviewCallbackWithBuffer(
(rawdata, c) =>
{
if (surface == null)
{
// W/CameraHardwareSec( 84): virtual android::status_t android::CameraHardwareSec::cancelPicture() : not supported, just returning NO_ERROR
return;
}
// 10080.0ms PreviewCallbackWithBuffer enter { cc = 58, Length = 460800 }
//10119.0ms PreviewCallbackWithBuffer compressToJpeg done { cc = 58, Elapsed = 39.0ms }
//10174.0ms PreviewCallbackWithBuffer ToBase64String done { cc = 58, Elapsed = 94.0ms }
var xcc = cc;
log("PreviewCallbackWithBuffer enter " + new { xcc, rawdata.Length });
// failed to flush { Length = 14619 }
//new Thread(
// delegate()
{
if (surface == null)
{
// W/CameraHardwareSec( 84): virtual android::status_t android::CameraHardwareSec::cancelPicture() : not supported, just returning NO_ERROR
return;
}
var cst = new Stopwatch();
cst.Start();
// http://stackoverflow.com/questions/3426614/android-converting-from-nv21-preview-format-on-nexus-one-to-jpeg
// http://developer.android.com/reference/android/graphics/YuvImage.html
//Caused by: java.lang.IllegalArgumentException: only support ImageFormat.NV21 and ImageFormat.YUY2 for now
//at android.graphics.YuvImage.<init>(YuvImage.java:82)
// https://code.google.com/p/android/issues/detail?id=823
// https://code.google.com/p/android-source-browsing/source/browse/graphics/java/android/graphics/YuvImage.java?repo=platform--frameworks--base&name=android-cts-4.1_r1
var yuv = new YuvImage(
rawdata,
PreviewFormat,
min.width,
min.height,
null
);
var m = new java.io.ByteArrayOutputStream();
yuv.compressToJpeg(
new Rect(0, 0, min.width, min.height),
20,
m);
var data = (byte[])(object)m.toByteArray();
log("PreviewCallbackWithBuffer compressToJpeg done " + new { xcc, cst.Elapsed });
Console.WriteLine("compressToJpeg "
+ new { data.Length }
);
var src = "data:image/jpg;base64," +
Convert.ToBase64String(
data
);
log("PreviewCallbackWithBuffer ToBase64String done " + new { xcc, cst.Elapsed });
y(src);
//PreviewCallbackWithBuffer { cc = 0, Length = 1048576 }
if (surface == null)
{
// W/CameraHardwareSec( 84): virtual android::status_t android::CameraHardwareSec::cancelPicture() : not supported, just returning NO_ERROR
return;
}
//camera.addCallbackBuffer();
camera.addCallbackBuffer(new sbyte[buffersize]);
log("PreviewCallbackWithBuffer exit " + new { xcc, cst.Elapsed });
if (xcc == frames)
{
//dummy.setVisibility(View.GONE);
//dummy = null;
// Caused by: android.view.ViewRoot$CalledFromWrongThreadException: Only the original thread that created a view hierarchy can touch its views.
aa.StartNew(
delegate
{
if (surface != null)
{
surface.setVisibility(View.GONE);
surface = null;
}
a.Set();
}
);
}
}
//).Start();
cc++;
}
);
#endregion
#region holder.surfaceChanged
holder.surfaceChanged(
delegate
{
log("surfaceChanged?");
}
);
#endregion
#region holder.surfaceCreated
holder.surfaceCreated(
delegate
{
log("surfaceCreated!");
// http://stackoverflow.com/questions/12098298/android-camera-app-passed-null-surface
// http://stackoverflow.com/questions/16945524/app-passed-null-surface-while-taking-a-picture-without-a-surfaceview
// app passed NULL surface
log("before setPreviewDisplay, delay");
Thread.Sleep(400);
// https://code.google.com/p/zxing/source/browse/trunk/android/src/com/google/zxing/client/android/camera/CameraManager.java
// http://stackoverflow.com/questions/16945524/app-passed-null-surface-while-taking-a-picture-without-a-surfaceview
// http://stackoverflow.com/questions/4852740/surfaceview-getholder-not-returning-surfaceholder
log("before setPreviewDisplay " + new { holder });
// inside surface changed?
//if (surface == 0)
//{
// LOGE("app passed NULL surface");
// return NO_INIT;
//}
// https://android.googlesource.com/platform/frameworks/native/+/a6938bab1f6fa76ae98ebbe44f4e534e05fa0993/libs/ui/Camera.cpp
camera.setTryPreviewDisplay(holder);
log("after setPreviewDisplay");
log("startPreview, delay");
Thread.Sleep(200);
log("startPreview");
camera.startPreview();
log("after startPreview");
}
);
#endregion
#region addContentView
//surface.setBackgroundColor(Color.argb(0x0F, 255, 0, 0));
var pp = new android.widget.LinearLayout.LayoutParams(
android.widget.LinearLayout.LayoutParams.FILL_PARENT,
android.widget.LinearLayout.LayoutParams.FILL_PARENT
);
//pp.setMargins(64, 64, 64, 64);
aa.addContentView(surface, pp);
#endregion
}
);
a.WaitOne();
log("PreviewCallbackWithBuffer done");
}
catch (Exception ex)
{
log("error: " + new { ex.Message, ex.StackTrace });
throw new Exception("", ex);
}
finally
{
log("finally");
// using
if (camera != null)
{
camera.stopPreview();
camera.release();
camera = null;
}
}
}