Database Users

Direct X and PNG Transparency on WM6.1 with .Net CF3.5

Hi all,
I'm trying to have transparent PNGs on my screen.
What is the best way to doing this ? I'm in C#, I tried DirectX, but it doesn't work.
What am I doing wrong ?
My code :
Code:
using System;
using System.Drawing;
using System.Windows.Forms;
using Microsoft.WindowsMobile.DirectX;
using Microsoft.WindowsMobile.DirectX.Direct3D;
using System.Runtime.InteropServices;
namespace Microsoft.Samples.MD3DM
{
// The main class for this sample
public class SimpleSMS : Form
{
// Our global variables for this project
Device device = null;
Texture texture = null;
Sprite sprite = null;
Rectangle rect;
public SimpleSMS()
{
// Set the caption
this.Text = "SimpleSMS";
this.MinimizeBox = false;
}
// Prepare the rendering device
public bool InitializeGraphics()
{
try
{
// Now let's setup our D3D parameters
PresentParameters presentParams = new PresentParameters();
presentParams.Windowed = true;
presentParams.SwapEffect = SwapEffect.Discard;
device = new Device(0, DeviceType.Default, this, CreateFlags.None, presentParams);
this.OnCreateDevice(device, null);
}
catch (DirectXException)
{
return false;
}
return true;
}
void OnCreateDevice(object sender, EventArgs e)
{
texture = TextureLoader.FromFile(device, @"badge.png");
sprite = new Sprite(device);
rect = new Rectangle(0, 0, 48, 48);
}
// All rendering for each frame occurs here
private void Render()
{
if (device != null)
{
device.Clear(ClearFlags.Target, System.Drawing.Color.Black, 1.0f, 0);
//Begin the scene
device.BeginScene();
device.RenderState.SourceBlend = Blend.SourceAlpha;
device.RenderState.DestinationBlend = Blend.InvSourceAlpha;
device.RenderState.AlphaBlendEnable = true;
sprite.Begin(SpriteFlags.AlphaBlend);
sprite.Draw(texture, rect, new Vector3(0.0f, 0.0f, 0.0f), new Vector3(100.0f, 100.0f, 0.0f), Color.White.ToArgb());
sprite.End();
//End the scene
device.EndScene();
device.Present();
}
}
// Called to repaint the window
protected override void OnPaint(System.Windows.Forms.PaintEventArgs e)
{
// Render on painting
this.Render();
// Render again
this.Invalidate();
}
// Called to repaint the window background
protected override void OnPaintBackground(
System.Windows.Forms.PaintEventArgs e)
{
// Do nothing to ensure that the rendering area is not overdrawn
}
// Close the window when Esc is pressed
protected override void OnKeyPress(
System.Windows.Forms.KeyPressEventArgs e)
{
// Esc was pressed
if ((int)(byte)e.KeyChar == (int)System.Windows.Forms.Keys.Escape)
this.Close();
}
/// <summary>
/// The main entry point for the application.
/// </summary>
static void Main()
{
SimpleSMS frm = new SimpleSMS();
// Initialize Direct3D
if (!frm.InitializeGraphics())
{
MessageBox.Show("Could not initialize Direct3D. " +
"This tutorial will exit.");
return;
}
Application.Run(frm);
}
}
}
Thanks for answers,
Scuse my bad english :-/

Not sure this helps, but RLTODAY works very well with transparent pngs in any WM version, and recently he released the source code:
http://rotlaus-software.de/forum/index.php?topic=1847.0

You can use ImagingFactory in OpenNETCF or other wrapper over the internet. PNGs with alpha work work for me.

AlphaControls
There is a project on Codeplex that can help you with transparency called AlphaControls. Also have a look on codeproject at the iPhone app clone

moneytoo said:
You can use ImagingFactory in OpenNETCF or other wrapper over the internet. PNGs with alpha work work for me.
Click to expand...
Click to collapse
Thank you all for answers ...
I tried OpenNetCF, without any result.
Do you have a piece of code in example ?

Try this:
http://www.codeplex.com/alphamobilecontrols
Or this:
http://johan.andersson.net/blog/2007/10/solution-for-transparent-images-on.html

[Q] Android permissions inside the framework

Hi,
I added a system service into the framework (hence running in the system_process). Via Binder.getCallingUid() I can determine the calling process/app. So far so good.
But if my service tries to use other system services (e.g. the LocationManager) a SecurityException is thrown because LocationManager thinks it is called by the original app that called my service.
From what I understood, system services have all permissions by default, so this should not be the case, should it?
From programming4.us/Mobile/1304.aspx:
Binder services are free to make other binder calls, but these calls always occur with the service’s own identity (UID and PID) and not the identity of the caller.
Click to expand...
Click to collapse
Here some code to illustrate the problem:
Code:
public class MyService implements IInterface {
public IBinder asBinder() {
return mBinder;
}
private final IMyService.Stub mBinder = new IMyService.Stub() {
public Bundle doSomething() {
int uid = Binder.getCallingUid(); // uid of the calling app
int myUid = Process.myUid(); // my uid == 1000
...
try {
ILocationManager lm = ILocationManager.Stub.asInterface(ServiceManager.getService("location"));
Location myLocation = lm.getLastKnownLocation(LocationManager.GPS_PROVIDER);
} catch (Exception e) {
SecurityException is thrown. Requires ACCESS_FINE_LOCATION
}
}
};
}
Thanks in advance for any help or comments!

Just in case anyone faces the same problem:
Calling Binder.clearCallingIdentity() solves the problem.

Camera picture is very dark

Hi,
im playing around with the Camera Service. The preview mode works well, but if I take a picture and save it, it is a lot darker as in the preview. I tried it with the delivered camera app and there is no such problem.
I tried it with many diffrent values (iso, brightness, scenemode, whitebalance), but nothing changed, but the preview. It seems, that the preferences only have effect in the previewmode.
Device: altek A14 leo
OS: Android 2.1
Picture saved by the standard camera app:
abload.de/img/stdapp8uql.jpg
Preview mode:
abload.de/img/previewrne6.jpg
Picture saved by my app:
abload.de/img/myappiugc.jpg
parameters of the camera
Code:
atk-frame=0
brightness-max=12
brightness-min=0
brightness=6
camera-id=1
contrast-max=2
contrast-min=0
contrast=1
effect-values=none,mono,sepia,whiteboard
effect=none
flash-mode-values=off,auto,on,red-eye
flash-mode=off
focus-mode-values=auto,infinity
focus-mode=auto
gps-altitude=0
gps-latitude=0.0
gps-longitude=0.0
gps-timestamp=1199145600
iso-values=auto,80,100,200,400,800,1600,3200
iso=auto
jpeg-quality=100
jpeg-thumbnail-height=384
jpeg-thumbnail-quality=100
jpeg-thumbnail-width=512
max-zoom=9
metering-values=spot,center,matrix
metering=center
min-zoom=0
orientation=landscape
picture-format-values=jpeg
picture-format=jpeg
picture-size-values=2048x1536,1280x960
picture-size=2048x1536
preview-format-values=yuv420sp
preview-format=yuv420sp
preview-frame-rate-values=15
preview-frame-rate=15
preview-size-values=640x480
preview-size=640x480
rotation=0
saturation-max=0
saturation-min=2
saturation=1
scene-mode-values=auto,portrait,landscape,night,beach,snow,sunset,fireworks,sports,candlelight
scene-mode=auto
SD9-poweron-mode=0
sharpness-max=2
sharpness-min=0
sharpness=1
smooth-zoom-supported=true
whitebalance-values=auto,fluorescent,daylight,cloudy-daylight
whitebalance=auto
zoom-factors=100,130,160,190,220,250,280,310,340,360,400
zoom-supported=true
zoom=0
Code:
private OnClickListener cameraClickListener = new OnClickListener() {
public void onClick(View v) {
inPreview = false;
cam.takePicture(null, null, photoCallback);
}
};
PictureCallback photoCallback = new PictureCallback() {
public void onPictureTaken(byte[] data, Camera camera) {
new SavePhotoTask().execute(data);
startPreview();
}
};
class SavePhotoTask extends AsyncTask<byte[], String, String> {
protected String doInBackground(byte[]... imageData) {
File photo = new File(Environment.getExternalStorageDirectory(), "photo.jpg");
if (photo.exists()) {
photo.delete();
}
try {
FileOutputStream fos = new FileOutputStream(photo.getPath());
fos.write(imageData[0]);
fos.close();
Log.i("IMAGE SAVED ASYNC", photo.getPath());
} catch (java.io.IOException e) {
Log.e("Error", "Exception in photoCallback", e);
}
return (null);
}
}
Does anybody have an idea, what causes this behaviour?
thanks.
rgds

I am not sure what happening with you. But as far as your codes it should work well. try other camera apps. Like 360. But problem persist then go to service center. The problem is with hardware.

Hi,
sorry for the late response. It was no hardware issue. I just had to call autoFocus and takePicture in the AutoFocusCallback.
Code:
private OnClickListener cameraClickListener = new OnClickListener() {
public void onClick(View v) {
if (!isFocusing) {
isFocusing = true;
cam.autoFocus(autoFocusCallback);
}
}
};
AutoFocusCallback autoFocusCallback = new AutoFocusCallback() {
public void onAutoFocus(boolean success, Camera camera) {
if (success) {
isFocusing = false;
camera.takePicture(null, null, photoCallback);
}
}
};
regards

[Q] How do I display text from a messgae into a toast?

Hi all skilled developers,
I am a newbie in coding, and I just want to make some small changes to my app.
It is a licensing feature.
1) Licensee information are stored at a very simple website. With columns for Names, IMEI and Remarks.
2) I have the following chunk of code:
Code:
if(hadLicense) {
new AlertDialog.Builder(InsuranceGuruSplash.this)
.setTitle("License")
.setMessage("Your device is registered.\nWelcome.")
.setPositiveButton("Send", new DialogInterface.OnClickListener()
Intent intent = new Intent(InsuranceGuruSplash.this, MainActivity.class);
startActivity(intent);
finish();
I want to show a toast saying,
Welcome, Shawn. Your device is registered till DD/MM/YY.
Click to expand...
Click to collapse
Can someone teach me how I can go about doing this?:silly:

You can show a toast using:
Code:
Toast.makeText(context, text, duration).show();
Just make the text String first with the text and time. For duration use Toast.LENGTH_SHORT

SimplicityApks,
Thanks for your reply. I still don't really know what you mean. how do I echo a text from a website into the app's toast?
This is the full code:
Code:
protected Void doInBackground(Void... params) {
String url_for_sale = "www(dot)heyfellas(dot)com/guru/index.php";
parseLicense(url_for_sale);
return null;
}
@Override
protected void onPostExecute(Void result) {
TelephonyManager mngr = (TelephonyManager)getSystemService(Context.TELEPHONY_SERVICE);
final String imei = mngr.getDeviceId();
boolean hadLicense = false;
for(LicenseInfo license: licenses) {
if(license.phoneIMEI.equals(imei))
hadLicense = true;
}
if(hadLicense) {
Intent intent = new Intent(InsuranceGuruSplash.this, MainActivity.class);
startActivity(intent);
finish();
} else {
new AlertDialog.Builder(InsuranceGuruSplash.this)
.setTitle("License")
.setMessage("Your device is not registered.\nPlease send your details to the admin.")
.setPositiveButton("Send", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
finish();
Intent i = new Intent(Intent.ACTION_SEND);
i.setType("message/rfc822");
i.putExtra(Intent.EXTRA_EMAIL , new String[]{"[email protected]"});
i.putExtra(Intent.EXTRA_SUBJECT, "Request for license");
i.putExtra(Intent.EXTRA_TEXT , "UserName: \n\nPhone Number: \n\nEmail: \n\nIMEI: " + imei);
try {
startActivity(Intent.createChooser(i, "Send mail..."));
} catch (android.content.ActivityNotFoundException ex) {
Toast.makeText(PropertyGuruSplash.this, "There are no email clients installed.", Toast.LENGTH_SHORT).show();
}
}
})
.setNegativeButton("Cancel", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
finish();
}
})
.create().show();
}
}
}

You need
[java]
String name = ...;
String date = ....;
Toast.makeToast(Activity.this, name + ", you have registered since "+date, Toast.LENGTH_SHORT).show();[/java]

I suppose, you are strong at server side than in client programming? Then echo the result in your desired format in your php and read it in java then display it in toast. Use the below snippet:
Code:
HttpClient httpclient=new DefaultHttpClient();
HttpPost httppost=new HttpPost("http://www(dot)heyfellas(dot)com/guru/index.php");
HttpResponse response = httpclient.execute(httppost);
String Result = EntityUtils.toString(response.getEntity());
Toast.makeText(Context, Result, Toast.LENGTH_SHORT).show();

Service terminates when app terminates

I am currently trying to implement an app that has a service running until the user explicitly ends it via the app. I would like the service to remain on otherwise. My current problem is that whenever the app is removed from the recent apps, it terminates the service as well. I have tried using START_STICKY in my onStartCommand but it doesn't change anything.
Code:
public class TriggerService extends Service{
@Override
public int onStartCommand(Intent intent, int flags, int startId) {
// We want this service to continue running until it is explicitly
// stopped, so return sticky.
return START_STICKY;
}
@Override
public IBinder onBind(Intent intent) {
// TODO Auto-generated method stub
return null;
}
and here is my code for when I call the service:
Code:
public void startServ(boolean state){
editor = sp.edit();
if (state == true) {
startService(new Intent(currentActivity, TriggerService.class));
editor.putBoolean("service_status", true);
toast = Toast.makeText(currentActivity, "Service Running", Toast.LENGTH_SHORT);
toast.show();
} else {
stopService(new Intent(currentActivity, TriggerService.class));
editor.putBoolean("service_status", false);
toast = Toast.makeText(currentActivity, "Service Not Running", Toast.LENGTH_SHORT);
toast.show();
}
editor.commit();
}
EDIT: I tried adding
Code:
android:isolatedProcess="true"
to the manifest but it didn't help. I tried a few things that were recommended over here but so far no dice

Check this article, it also suggests a potential solution
http://www.androidpolice.com/2014/03/07/bug-watch-stopping-apps-on-android-4-4-2-can-silently-kill-related-background-services-a-fix-is-on-the-way/
And this open issue
https://code.google.com/p/android/issues/detail?id=63793

painlessDeath said:
Check this article, it also suggests a potential solution
http://www.androidpolice.com/2014/0...ated-background-services-a-fix-is-on-the-way/
And this open issue
https://code.google.com/p/android/issues/detail?id=63793
Click to expand...
Click to collapse
You are a god send. Tested the app on JB and the service stayed when I closed the app. Thank god.