Develop Bugs

C# Battery State

Hi Everyone,
I'm making a windows mobile app in C# to help those affected by alzheimers disease and other dimentia related conditions
One function of the app is sending SMS text messages and so I'd really like to include the battery charge percentage in each text, but I can't find how to do so!
How can I put this in my program?
Thanks!
James

Use PowerBatteryStrength of Status.SystemProperty!

I know it's something to do with
Code:
Microsoft.WindowsMobile.Status.SystemState.PowerBatteryStrength.ToString();
but beyond that I'm lost! How do I put it in to my code so that I just get the string "Battery level: 42%" for example?

Signal strenght and battery level example
Hi,
Here is a simple example on how you can use the SystemState and SystemProperties.
Hope this will help you.
Code:
using System;
using System.Windows.Forms;
using Microsoft.WindowsMobile.Status;
namespace SignalAndBatteryLevel
{
public partial class BatteryAndSignalLevel : Form
{
private readonly SystemState _signalStrenght =
new SystemState(SystemProperty.PhoneSignalStrength);
private readonly SystemState _batteryLevel =
new SystemState(SystemProperty.PowerBatteryStrength);
private readonly SystemState _batteryState =
new SystemState(SystemProperty.PowerBatteryState);
public BatteryAndSignalLevel()
{
InitializeComponent();
SetSignalStrenght();
SetBatteryLevel();
_signalStrenght.Changed +=
SignalStrenghtChanged;
_batteryLevel.Changed += BatteryLevelChanged;
_batteryState.Changed += BatteryLevelChanged;
}
private void SignalStrenghtChanged(object sender,
EventArgs e)
{
SetSignalStrenght();
}
public void SetSignalStrenght()
{
_lblSignalStrenght.Text =
SystemState.PhoneSignalStrength.ToString();
}
private void BatteryLevelChanged(object sender,
EventArgs e)
{
SetBatteryLevel();
}
private void SetBatteryLevel()
{
_lblBatteryLevel.Text = GetBatteryLevel();
}
private string GetBatteryLevel()
{
string batteryLevel = "Unknown";
if (SystemState.PowerBatteryState ==
BatteryState.Charging)
{
return "Charging";
}
switch (SystemState.PowerBatteryStrength)
{
case BatteryLevel.VeryLow:
batteryLevel = "Very lowt";
break;
case BatteryLevel.Low:
batteryLevel = "Low";
break;
case BatteryLevel.Medium:
batteryLevel = "Medium";
break;
case BatteryLevel.High:
batteryLevel = "High";
break;
case BatteryLevel.VeryHigh:
batteryLevel = "Very High";
break;
}
return batteryLevel;
}
}
}

Hi PerOla,
This is really a good solution and working fine for me. Its really help me out in one of my project.
Thank you very much....
Vimal Panchal

[App] QuickSnap - Makes up for no hardware camera button

Very simple application that makes up (slightly) for not having a dedicated camera button.
Install the app, put a shortcut to it on your homepage. Shortcut will open (as quickly as possible) a preview window. Tapping anywhere on the screen will take a photo. Back button to exit.
QuickSnapNoAutofocus.apk - Takes pictures instantly, but you need a steady hand or your picture will be blurred!
QuickSnapAutoFocus.apk - Takes pictures using autofocus, so there is a delay while it focuses, but the pictures can't be blurred.
Saves the images to internal sd card as $DT.jpg on a seperate thread. Multiple taps on the screen to take lots of pictures quickly. (Supports multitouch! )
Source is in the next post - if anybody knows how to override the home or power button, give a shout!

Code:
package com.rc.QuickSnap;
import java.io.FileOutputStream;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import android.app.Activity;
import android.hardware.Camera;
import android.hardware.Camera.AutoFocusCallback;
import android.hardware.Camera.PictureCallback;
import android.hardware.Camera.ShutterCallback;
import android.os.Bundle;
import android.util.Log;
import android.view.MotionEvent;
import android.view.SurfaceHolder;
import android.view.SurfaceHolder.Callback;
import android.view.SurfaceView;
public class QuickSnap extends Activity {
Camera cam;
ExecutorService executorService;
SimpleDateFormat sdf = new SimpleDateFormat("yyyyMMdd_HHmmss");
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
}
@Override
protected void onPause() {
super.onPause();
try {
cam.stopPreview();
} catch (Exception ex) {
ex.printStackTrace();
}
try {
cam.release();
} catch (Exception ex) {
ex.printStackTrace();
}
try {
executorService.shutdown();
} catch (Exception ex) {
ex.printStackTrace();
}
}
@Override
protected void onResume() {
super.onResume();
executorService = Executors.newSingleThreadExecutor();
try {
SurfaceView surface = (SurfaceView) findViewById(R.id.surface);
SurfaceHolder sh = surface.getHolder();
sh.setKeepScreenOn(true);
sh.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS);
sh.addCallback(new Callback() {
@Override
public void surfaceDestroyed(SurfaceHolder holder) {
Log.i("QuickSnap", "surfaceDestroyed");
}
@Override
public void surfaceCreated(SurfaceHolder holder) {
Log.i("QuickSnap", "surfaceCreated");
try {
cam = Camera.open();
cam.setPreviewDisplay(holder);
cam.startPreview();
} catch (Exception ex) {
ex.printStackTrace();
}
}
@Override
public void surfaceChanged(SurfaceHolder holder, int format, int width, int height) {
Log.i("QuickSnap", "surfaceChanged");
try {
cam.setPreviewDisplay(holder);
} catch (Exception ex) {
ex.printStackTrace();
}
}
});
} catch (Exception ex) {
ex.printStackTrace();
}
}
@Override
public boolean onTouchEvent(MotionEvent event) {
if (event.getAction() == MotionEvent.ACTION_DOWN) {
Log.i("QuickSnap", "TouchEvent");
cam.autoFocus(new AutoFocusCallback() {
@Override
public void onAutoFocus(boolean success, Camera camera) {
cam.takePicture(new ShutterCallback() {
@Override
public void onShutter() {
Log.i("QuickSnap", "Shutter");
}
}, null, new PictureCallback() {
@Override
public void onPictureTaken(byte[] data, Camera camera) {
Log.i("QuickSnap", "JPEG");
final byte[] finaldata = data;
executorService.submit(new Runnable() {
@Override
public void run() {
try {
FileOutputStream fileOutputStream = new FileOutputStream("/sdcard/" + sdf.format(new Date()) + ".jpg");
fileOutputStream.write(finaldata);
fileOutputStream.close();
} catch (Exception ex) {
ex.printStackTrace();
}
}
});
camera.startPreview();
}
});
}
});
}
return true;
}
}

thx a lot !!

Looks great, gotta try. Thanks!

Has anyone got a mod that takes control of the Vol+ key for use with a camera?

Closing gps in gps event handler - endless loop

In my application when I get position latitude and longitude from GPS, I am downloading bing map to a picture box. I've been trying now to protect my application in case there is no internet connection. I've done that in the GetMap function and it works fine. After that I want to close gps - the problem is that I'm trying to do that in gps event handler - it is so because I update the picture box constantly:
Code:
void UpdateData(object sender, System.EventArgs args)
{
menuGPS.Text = "Enable GPS";
menuZoom.Enabled = false;
menuView.Enabled = false;
}
void gps_LocationChanged(object sender, Microsoft.WindowsMobile.Samples.Location.LocationChangedEventArgs args)
{
if (args.Position.LatitudeValid && args.Position.LongitudeValid)
{
if (isCameraEnabled == false)
{
try
{
pbMap.Invoke((UpdateMap)delegate()
{
pbMap.Image = bingMap.GetMap(args.Position.Latitude,
args.Position.Longitude,
zoom,
mapStyle);
});
if (pbMap.Image == null)
{
Invoke(updateDataHandler);
gpsData.gps.LocationChanged -= gps_LocationChanged;
gpsData.closeGPS();
}
}
catch (ArgumentException ex)
{
MessageBox.Show("An error has occured:" + ex.Message , "Error");
}
}
else
{
}
}
}
So after the gpsData.gps.LocationChanged -= gps_LocationChanged; and gpsData.closeGPS(); are being called in the event handler the gps gets stuck in the WaitForGpsEvents() method in GPS.cs in the while loop because bool lisening value is not changed to false.
If I put gpsData.gps.LocationChanged -= gps_LocationChanged; and gpsData.closeGPS(); to the void UpdateData(object sender, System.EventArgs args) then it stops in the Close() method on the lock condition:
// block until our event thread is finished before
// we close our native event handles
lock (this)
How can I close the GPS?

XClasses - A Xposed Library

Hello guys,
I want to share my library XClasses.
My idea was to see every XClass as an extension of the original class.
My aim was to improve the user experience during the development.
Also I wanted to increase the readability of xposed code.
So it's nothing special.
It's just my personal opinion how readable code should look like.
A small example:
Code:
public class XposedMain implements IXposedHookLoadPackage
{
@Override
public void handleLoadPackage(XC_LoadPackage.LoadPackageParam lpparam)
throws Throwable {
if(lpparam.packageName.equals("com.android.systemui"))
{
XposedHelpers.findAndHookMethod(TextView.class, "setText", CharSequence.class, TextView.BufferType.class, boolean.class, int.class, new XC_MethodHook() {
@Override
protected void beforeHookedMethod(MethodHookParam param)
throws Throwable {
TextView tv = (TextView)param.thisObject;
CharSequence text = (CharSequence)param.args[0];
TextView.BufferType type = (TextView.BufferType)param.args[1];
boolean notifyBefore = (Boolean)param.args[2];
int oldlen = (Integer)param.args[3];
XposedBridge.log("setText "+text+" with size "+tv.getTextSize());
}
});
}
}
}
The same code with XClasses:
Code:
// class 1
public class XposedMain implements IXposedHookLoadPackage
{
@Override
public void handleLoadPackage(XC_LoadPackage.LoadPackageParam lpparam)
throws Throwable {
if(lpparam.packageName.equals("com.android.systemui"))
{
setup(lpparam.classLoader);
hook(XTextView.class);
}
}
}
// class 2
public class XTextView
extends AbstractXClass<TextView>
{
public static String getOriginalClassName() { return TextView.class.getCanonicalName(); }
public XTextView(TextView objectThis) { super(objectThis); }
@BeforeOriginalMethod
private void setText_Before(CharSequence text, TextView.BufferType type,
boolean notifyBefore, int oldlen) throws Throwable {
XposedBridge.log("setText "+text+" with size "+getThis().getTextSize());
}
}
If you would like to know more you should visit the following site: https://github.com/seebye/XClasses
Regards,
Seebye

[Q] How to use a variable from one hook in another? (Why is this an NPE?)

Hello, I have made this code
Link : http://hastebin.com/hiyupafibi.java
Duplicated here :
Code:
//In my module, I have this activity MainActivity, which has a function to generate random number
private int randomNumber() {
return (new Random()).nextInt(3);
}
//Toast this random number somewhere in the main activity
Toast.makeText(MainActivity.this, " " + randomNumber(), Toast.LENGTH_LONG).show();
//In XposedMod, make a hook
public class XposedMod implements IXposedHookLoadPackage {
private TextView tv;
public static final String PACKAGE_NAME = ".......";
@Override
public void handleLoadPackage(LoadPackageParam lpparam) throws Throwable {
if (lpparam.packageName.equals(PACKAGE_NAME)) {
Class<?> MainActivityClass = XposedHelpers.findClass(PACKAGE_NAME + ".MainActivity", lpparam.classLoader);
XposedHelpers.findAndHookMethod(MainActivityClass, "randomNumber", new XC_MethodReplacement() {
@Override
protected Object replaceHookedMethod(MethodHookParam methodHookParam) throws Throwable {
try {
tv.setText("No NPE");
return 45;
} catch (NullPointerException e) {
return 44;
}
}
});
} else if (lpparam.packageName.equals("com.android.systemui")) {
Class<?> someClass = XposedHelpers.findClass("com.android.systemui.SomeClass", lpparam.classLoader);
XposedHelpers.findAndHookMethod(someClass, "someMethod", Context.class, new XC_MethodHook() {
@Override
protected Object beforeHookedMethod(MethodHookParam methodHookParam) throws Throwable {
tv = new TextView((Context) param.args[0]);
if (tv==null)
XposedBridge.log("tv is null, apologies!");
}
});
}
}
}
Everytime that toast is supposed to be shown, I get the answer to be 44 (that is, tv is null), but that should not be the case, because the log statement when tv is null is not shown. What am I doing wrong?
Thanks for the help, I appreciate it.
Cheers!