[android-developers] Re: Accelerometer/Orientation sensor problem
I have noticed that the speaker output does effect the magnetic
compass reading a bit. Not too surprising, since the speaker uses an
electromagnet. This is probably what is causing the sensor to jitter
around. As for the accelerometers, I would guess that the movement of
the speaker cone itself is what is causing the fluctuations there.
Perhaps its not a problem, but more of a filtering issue, have your
tried any simple averaging on the sensor output?
chow
On Mar 31, 11:55 am, Liz wrote:
> On my T-Mobile G1 (firmware 1.1, build PLAT-RC33), developing in
> SDK1.1r1, I am experiencing a problem where playing sounds causes the
> output of the accelerometer and orientation sensors to fluctuate
> wildly. The degree of fluctuation is directly proportional to the
> volume of the sound being played.
>
> I am using SensorManager per the documentation and examples :
>
> <= From my implementation of SensorListener>
> public void init() {
> SensorManager sm = (SensorManager) cx..getSystemService
> (Context.SENSOR_SERVICE);
> boolean success = sm.registerListener(this,
> SensorManager.SENSOR_ORIENTATION,
> SensorManager.SENSOR_DELAY_GAME);
> // success is true, i.e. no problems acquiring the sensor
>
> }
>
> public void onSensorChanged(int sensor, float[] values) {
> if (sensor == SensorManager.SENSOR_ORIENTATION) {
> // print/draw/do something with the sensor output in values[]
> }}
>
> <==>
>
> I have tried playing sounds with both SoundPool and MediaPlayer, with
> identical results. When a sample is played at max volume the
> Orientation sensor outputs will bounce around as much as +-/30
> degrees. All axes are affected.
>
> I have tested and confirmed this behaviour for SENSOR_ACCELEROMETER,
> SENSOR_ORIENTATION, and SENSOR_ORIENTATION_RAW. Other sensors may
> also be impacted, but I haven't tested them.
>
> I have also tested with all of the available sensor sampling rates --
> SENSOR_DELAY_FASTEST through SENSOR_DELAY_UI. All result in the same
> behavior.
>
> On a random guess I tried muting the microphone with
> AudioManager.setMicrophoneMute(true) -- same results.
>
> I thought to try testing this in the Android emulator to see if it
> might be hardware-related, but unfortunately there is currently no
> accelerometer/orientation sensor support in the emulator.
>
> Is this a known problem? Or am I doing something wrong here?
>
> Thanks
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[android-developers] Re: Obtaining Frequency from Mic on Android
Well so far, I think you can defiantly record some audio, and take that raw data and do a fft to get the freq, but im not too sure about getting more "live" than that. im looking for a solution to get freqencies from the microphone as well. any luck checking out some code associated with the various guitar tuner programs out there? On Jun 9, 3:27 am, Tez wrote: > Hi, > > I wish to obtain the frequency of an input signal from the mic. Can > anyone send me some pointers on how this may be accomplished. > > Earlence --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en -~--~~~~--~~--~--~---
[android-developers] I want to join the group
HI, please let me join . thanks very much -- You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
[android-developers] How to change the background color of ToggleButton?
Hello, How can I change the background color of a ToggleButton? -- You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
[android-developers] Re: How to change the background color of ToggleButton?
Yes, I just want to change the button background. How can I do it at runtime? Would you please to give me a simple example? Best regards, Eric On Jan 29, 2:17 am, Kostya Vasilyev wrote: > If you only want tochangethe way aToggleButtonlooks (not behaves), > you can replace the background from XML with your own. > > Note thatToggleButtonuses a layer-list drawable to overlay the toggle > state over the standard button background, to reduce the number of > needed images. > > You can find the resource in "data" directory inside the > platforms\platform-\data\res folder on your computer. > > -- Kostya > > 28.01.2011 21:08, Roger Podacter пишет: > > > > > I was interested in doing something like this as well. My app has 6 > > toggle buttons in a row on one line, and it doesn't quite fit on > > portrait screen. I wanted to make a custom toggle button, color, > > width, etc. > > > You could also make your own state-list drawable I think It's called. > > Anyway in the source of the s d k I think you can find the toggle > > button and then edit it, not sure though. > > > On Jan 27, 7:08 pm, TreKing wrote: > >> On Tue, Jan 25, 2011 at 10:43 PM, Eric Chow wrote: > >>> How can Ichangethe background color of aToggleButton? > >> Go to the documentation, find the entry forToggleButton, then start > >> reading. There-in lies the answer. > > >> --- > >> -- > >> TreKing<http://sites.google.com/site/rezmobileapps/treking> - Chicago > >> transit tracking app for Android-powered devices > > -- > Kostya Vasilyev -- WiFi Manager + pretty widget > --http://kmansoft.wordpress.com -- You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
[android-developers] How to pass parameters to the AlarmService?
Hello,
Please see the following code. It could not pass those extra
parameters to the intent.
When I tried show the keys in the intent, it only gets the key
"android.intent.extra.ALARM_COUNT".
Anything I did wrong?
Please teach me how can I pass some parameters to the AlarmService
when the alarm activate?
Best regards,
Eric
AlarmManager alarmManager =
(AlarmManager)getSystemService(ALARM_SERVICE);
Intent myIntent = new Intent(this, TVAlarmService.class);
PendingIntent pendingIntent = PendingIntent.getService(Main.MAIN, 0,
myIntent, PendingIntent.FLAG_UPDATE_CURRENT);
myIntent.putExtra("name", lValue);
myIntent.putExtra("program", program);
myIntent.putExtra("today", today);
alarmManager.set(AlarmManager.RTC_WAKEUP, calendar.getTimeInMillis(),
pendingIntent);
===
public class MyAlarmService extends Service {
@Override
public void onStart(Intent intent, int startId) {
Bundle extras = intent.getExtras();
for(String k : extras.keySet()) {
Log.i(TAG, "key >>> " + k);
}
}
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[android-developers] it doesn't fire, setOnLongClickListener on AppWidgetHostView
i set OnLongClickListner, but it doesn't fire. Can anybody help me?
i just follow
[url]http://www.anddev.org/appwidgethost_tutorial-t10329.html[/url], and
change some, as it is posted in 2010.
Some part of code:
//declare under class
private AppWidgetHostView widgets[] = new AppWidgetHostView[16];
widgets[widgCount] = attachWidget(mAppWidgetHost.createView(this,
appWidgetId, appWidgetInfo), width, height);
parent.addView(widgets[widgCount]);
widgets[widgCount].setOnLongClickListener(new OnLongClickListener() {
public boolean onLongClick(View v) {
Toast.makeText(MainActivity.this, "hello hello ",
Toast.LENGTH_SHORT).show();
return true;
}
});
My code:
package com.example.test5;
import java.util.ArrayList;
import android.os.Bundle;
import android.app.Activity;
import android.appwidget.AppWidgetHost;
import android.appwidget.AppWidgetHostView;
import android.appwidget.AppWidgetManager;
import android.appwidget.AppWidgetProviderInfo;
import android.content.ComponentName;
import android.content.Intent;
import android.util.Log;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.View.OnLongClickListener;
import android.view.ViewGroup.LayoutParams;
import android.widget.Button;
import android.widget.RelativeLayout;
import android.widget.Toast;
public class MainActivity extends Activity {
private Button b1;
private AppWidgetManager mAppWidgetManager;
private AppWidgetHost mAppWidgetHost;
static final int APPWIDGET_HOST_ID = 2037;
private static final int REQUEST_CREATE_APPWIDGET = 5;
private static final int REQUEST_PICK_APPWIDGET = 9;
private AppWidgetHostView widgets[] = new AppWidgetHostView[16];
private int widgCount = 0;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
b1=(Button)findViewById(R.id.button1);
b1.setOnLongClickListener(new OnLongClickListener() {
public boolean onLongClick(View v) {
doWidgetPick();
return false;
}
});
mAppWidgetManager = AppWidgetManager.getInstance(this);
mAppWidgetHost = new AppWidgetHost(this, APPWIDGET_HOST_ID);
mAppWidgetHost.startListening();
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.activity_main, menu);
menu.add(0, 1, 0, "Add Widget");
return true;
}
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case 1:
doWidgetPick();
return true;
}
return false;
}
protected void doWidgetPick() {
int appWidgetId = this.mAppWidgetHost.allocateAppWidgetId();
Intent pickIntent = new Intent(AppWidgetManager.ACTION_APPWIDGET_PICK);
pickIntent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, appWidgetId);
/* custom extra that has to be there or else NPE will happen due to
android bug */
//this is pulled from the Launcher source, I just changed a few things as
it's just a dummy entry at this point
ArrayList customInfo =
new ArrayList();
AppWidgetProviderInfo info = new AppWidgetProviderInfo();
info.provider = new ComponentName(getPackageName(), "XXX.YYY");
info.label = "i love android";
info.icon = R.drawable.ic_launcher;
customInfo.add(info);
pickIntent.putParcelableArrayListExtra(
AppWidgetManager.EXTRA_CUSTOM_INFO, customInfo);
ArrayList customExtras = new ArrayList();
Bundle b = new Bundle();
b.putString("custom_widget", "search_widget");
customExtras.add(b);
pickIntent.putParcelableArrayListExtra(
AppWidgetManager.EXTRA_CUSTOM_EXTRAS, customExtras);
/* that's a lot of lines that are there for no function at all */
// start the pick activity
startActivityForResult(pickIntent, REQUEST_PICK_APPWIDGET);
//because we've defined ourselves as a singleTask activity, it will
allow this intent to be part of the task
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent
data) {
Log.v("result",requestCode + ", " + resultCode + ", " + data);
//when the user completes the pick process, both these cases come back,
according to log.
//looks like this is happening because Pick does a check to see if a
config needs to be launched first
//if not it just sends the create intent
if (resultCode == RESULT_OK) {
switch (requestCode) {
case REQUEST_PICK_APPWIDGET:
addAppWidget(data);
break;
case REQUEST_CREATE_APPWIDGET:
completeAddAppWidget(data);
break;
}
}
else if ((requestCode == REQUEST_PICK_APPWIDGET ||
r
[android-developers] it can't scroll after i set OnTouchListener to its child, i add Google Calender appWidgetHostView in app
It is a application that can add appWidget. The widget can be deleted by long press. This function, i set onTouchListener and GestureDetector to do it and set onTouchListener per 3s to prevent it become invaild after update. However, i found that the google calender can't be scroll, Could anyone help me? any ideas for this situation? -- You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
Re: [android-developers] Re: L2TP/IPSEC PSK with Android 4
Thank you buddy. 在 2011-12-28 上午9:12，"Nikolay Elenkov" 写道： > On Mon, Dec 26, 2011 at 6:19 PM, Franklin wrote: > > I also met this problem. It shows "Time out" in Galaxy Nexus but the > > same setting works fine with my Nexus One. > > > > Check the logcat, that might give you an idea about the error (if any). > Other than that, try different settings, and if none work, go to > http://b.andorid.com and file a bug. > > BTW, this does not seem related to development, so this is probably > not the right list to discuss it. > > -- > You received this message because you are subscribed to the Google > Groups "Android Developers" group. > To post to this group, send email to android-developers@googlegroups.com > To unsubscribe from this group, send email to > android-developers+unsubscr...@googlegroups.com > For more options, visit this group at > http://groups.google.com/group/android-developers?hl=en -- You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
