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Developing Game

I have decided to recreate a game I was making on the PC for Google Android but I have run into some snags. Currently I have the menu partially created but am not exactly sure how the views and such work. So I have uploaded my source and was hoping someone could look at my source and help me. I have menu created through xml and have ninepatchdrawable button with a background set for the menu. What I am trying to figure out is clicking start and going to another view.
http://www.bobhoil.com/wp-content/uploads/2010/08/T-Dodger.zip
You can also visit my blog here: http://bobhoil.com/
Thanks! I hope I can get some assistance

I am also having some trouble installing it to my att Samsung Captivate. I tried using a program I have been using to install from the pc but it says wrong SDk version even though it is the same one I have been using.

Please Help?

look at this: http://dl.dropbox.com/u/2817943/T Dodger.rar
i have added an additional layout and an acitivity-class to your project. and i called that activity by clicking you start button!
i hope that helps you

Thanks that helps a ton! That was the main issue I was having. Now I can start connecting parts of my game together. I appreciate it a ton.

Also just a tip, root your captivated and turn on USB debugging. That will allow you to run your program right to your phone, rather than the slow emulator.
Sent from my HTC HD2 using XDA App

Okay that sounds good. One thing though that voids your warrenty and I bought an extended warrenty from At&t. So would it void my warrenty?
Also I am making some progress. I have the code laid out for detecting the accelerometer! Next I just need to use that data and apply it to the image that I will be moving around the screen.

It will not void warrenty as it is software based. Sounds good. Hope to see a beta soon.

Okay sounds great then. I will start working on that then.

I have run into another little problem. Now I have rooted my phone which makes testing a LOT easier! (Thanks Metastable!)
The following code seems to cause it to crash:
package com.bobhoil.tdodger;
import android.app.Activity;
import android.os.Bundle;
import android.hardware.Sensor;
import android.hardware.SensorEvent;
import android.hardware.SensorEventListener;
import android.hardware.SensorManager;
import android.widget.TextView;
public class TestActivity extends Activity implements SensorEventListener {
private TextView accelXValue;
private TextView accelYValue;
private TextView accelZValue;
private SensorManager sensorManager = null;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
sensorManager = (SensorManager) getSystemService(SENSOR_SERVICE);
setContentView(R.layout.test);
accelXValue = (TextView) findViewById(R.id.accel_x_value);
accelYValue = (TextView) findViewById(R.id.accel_y_value);
accelZValue = (TextView) findViewById(R.id.accel_z_value);
accelXValue.setText("0.00");
accelYValue.setText("0.00");
accelZValue.setText("0.00");
}
public void onSensorChanged(SensorEvent sensorEvent) {
synchronized (this) {
if (sensorEvent.sensor.getType() == Sensor.TYPE_ACCELEROMETER) {
accelXValue.setText(Float.toString(sensorEvent.values[0]));
accelYValue.setText(Float.toString(sensorEvent.values[1]));
accelZValue.setText(Float.toString(sensorEvent.values[2])); }
}
}
public void onAccuracyChanged(Sensor arg0, int arg1) {
}
@Override
protected void onResume() {
super.onResume();
sensorManager.registerListener(this, sensorManager.getDefaultSensor(Sensor.TYPE_ACCELEROMETER), SensorManager.SENSOR_DELAY_GAME);
}
@Override
protected void onStop() {
sensorManager.unregisterListener(this);
super.onStop();
}
}
Click to expand...
Click to collapse
This is supposed to capture movement through the accelerometer.

please zip the eclipse project and tell us the link to it.
i'm too lazy to build my own xml with 3 EditText's

OKay here is the link: http://www.bobhoil.com/wp-content/uploads/2010/09/T-Dodger2.zip
I have been busy working and hadn't had a chance to upload it.

Don't mean to be persistent I am just trying to figure out why it is crashing. I changed the code in the above file to some ibm examples just to test if that worked and it too seems to crash. Am I starting the activity wrong?

there are some attributes missing in your test.xml (android:layout_width... and so on)
here is the correct test.xml
Code:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical">
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="@drawable/mobil"/>
<TableRow android:layout_width="fill_parent" android:layout_height="wrap_content">
<TextView
android:id="@+id/accelerometer_label"
android:layout_column="1"
android:text="Accelerometer"
android:textSize="9pt"
android:padding="3dip" />
</TableRow>
<TableRow android:layout_width="fill_parent" android:layout_height="wrap_content">
<TextView
android:id="@+id/accel_x_label"
android:layout_column="1"
android:text="X:"
android:textSize="8pt"
android:padding="3dip" />
<TextView
android:id="@+id/accel_x_value"
android:gravity="right"
android:textSize="8pt"
android:padding="3dip" />
</TableRow>
<TableRow android:layout_width="fill_parent" android:layout_height="wrap_content">
<TextView
android:id="@+id/accel_y_label"
android:layout_column="1"
android:text="Y:"
android:textSize="8pt"
android:padding="3dip" />
<TextView
android:id="@+id/accel_y_value"
android:gravity="right"
android:textSize="8pt"
android:padding="3dip" />
</TableRow>
<TableRow android:layout_width="fill_parent" android:layout_height="wrap_content">
<TextView
android:id="@+id/accel_z_label"
android:layout_column="1"
android:text="Z:"
android:textSize="8pt"
android:padding="3dip" />
<TextView
android:id="@+id/accel_z_value"
android:gravity="right"
android:textSize="8pt"
android:padding="3dip" />
</TableRow>
<View
android:layout_height="2dip" android:layout_width="fill_parent"
android:background="#FF909090" />
</LinearLayout>
by replacing the test.xml with the correct one, the activity opens like it should (you can check that by adding a breakpoint in the onCreate method).
But there is another error too that will cause the activity to close immediately. At the moment i have no idea what's the problem, but i try to figure it out!

Okay thanks. I have been trying to solve the problem for about a week now. I am having a hard time figuring out the problem.
EDIT:
Okay after doing some research maybe it is getting information from the accelerometer to quickly?

no, the problem is the test.xml again... something is wrong with your table-rows.
while executing your application, logcat shows some exceptions like "null-child" in a table row...
Code:
09-05 07:45:40.114: ERROR/AndroidRuntime(223): java.lang.NullPointerException
09-05 07:45:40.114: ERROR/AndroidRuntime(223): at android.widget.TableRow.measureNullChild(TableRow.java:182)
I'm afraid I have too little experience with <TableRow> in Android. I suggest to use simple <TextView> elements to display the sensor data. You only need one TextView, and in your java class file you can put all the sensor values in this TextView.
for example:
accelValue.setText("Accel X: " + values[0]+"\n" + "Accel Y: " + values[] +.....)
The TestActivity is for testing purposes only... so don't care about the layout

Okay I will change over to using TextView and see then if I can get something up and running.

Thanks for the help! I have finally got it fully working!

OKay one last question. Is there any way to change android:layout_y outside of the xml? From the activity?

Have you set up your activities in manifest.xml file??
Sent from my ADR6300 using XDA App

Webview app

anyone got some decent code for webview app? I want to put my site into an app the site already has a mobile view so just need to put it in a web view app. I did play with some code but just can't get it quite right. I would like it to not have a loading bar and be able to use back button to move back through web pages rather than hitting back and being tacken out of app, would be greatfull for any help.
Sent from my HTC Magic using XDA App

Would be great if anyone could help with this.
Sent from my HTC Magic using XDA App

Hey,
the official documentation has a Hello WebView section which basically
does all the things you want except for hiding the progressbar:
developer.android.com/guide/tutorials/views/hello-webview.html
(sry cant post links as a new user)
You may want to read and work through this.
The progressbar can be hidden by calling
Activity.setProgressBarVisibility(false)
for example inside onCreate().
Greets

Thanks I did have a go using the codes there but kept messing it up or getting confussed when trying to put all the bits tog just wondered if the code was out there all tog ready for me to use. Lazy I know but hey you don't ask you don't get.
Sent from my HTC Magic using XDA App

Alright, I dont do this usually, but since I wanted to open a blog for Android since a while (mainly for self-documentation how to do things in code), and needed a first post, I wrote a small template and a description how to use it.
Check it out at
alexsbraindump.blogspot.com/2010/10/simple-webview-app-template.html
You can also download the app code there.
Greets

thanks for that although i can not get the progress bar to show.

Hey,
mh yeah I see. You're right. It works on my HTC Desire w/ sense,
but it doesnt work on the emulator with various Android versions.
I couldn't figure out yet why, but I'll look into that a bit more later.
Greets

Thanks
Sent from my HTC Magic using XDA App

If you are still looking for another tutorial you may want to take a look here:
Building Android Apps with HTML, CSS, and JavaScrip
It starts with the very, very basic HTML and works its way on building a webapp to even converting it into an .apk

Web App
PhoneGap is an open source development framework for building cross-platform mobile apps.

Ok can someone tell what what the heck i am doing wrong, i ma just getting force close all the time.
Here is my code:
Manifest
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.luvdroid"
android:versionCode="1"
android:versionName="1.0">
<application android:icon="@drawable/icon" android:label="@string/app_name">
<activity android:name=".luvdroid"
android:label="@string/app_name">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
<uses-sdk android:minSdkVersion="4" />
<uses-permission android:name="android.permission.INTERNET" />
</manifest>
Java
package com.luvdroid;
import android.app.Activity;
import android.os.Bundle;
import android.view.Window;
import android.webkit.WebChromeClient;
import android.webkit.WebView;
import android.webkit.WebViewClient;
public class luvdroid extends Activity
{
final Activity activity = this;
@Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
this.getWindow().requestFeature(Window.FEATURE_PROGRESS);
setContentView(R.layout.main);
WebView webView = (WebView) findViewById(R.id.webView);
webView.getSettings().setJavaScriptEnabled(true);
webView.setWebChromeClient(new WebChromeClient() {
public void onProgressChanged(WebView view, int progress)
{
activity.setTitle("Loading...");
activity.setProgress(progress * 100);
if(progress == 100)
activity.setTitle(R.string.app_name);
}
});
webView.setWebViewClient(new WebViewClient() {
@Override
public void onReceivedError(WebView view, int errorCode, String description, String failingUrl)
{
// Handle the error
}
@Override
public boolean shouldOverrideUrlLoading(WebView view, String url)
{
view.loadUrl(url);
return true;
}
});
webView.loadUrl("http://developer.android.com");
}
}
Main.xml
<?xml version="1.0" encoding="utf-8"?>
<webView xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/webView"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
/>

Anybody know why I get force close?
Sent from my Desire HD using XDA App

[SOLVED] Broadcast receiver HEADSET_PLUG doesn't work

Dear developers,
After searching the whole internet and stackoverflow I didn't find the answer to my problem, so I need your help.
Problem
I'm trying to make an app that monitors your headset-jack-plug. To code below shows that i register the broadcast receiver and the Logcat output confirms that. But as soon as I test this app on my HTC Desire Bravo (connected to Eclipse), the onreceive method is never called.
When I replace the action.HEADSET_PLUG by action.ACTION_POWER_DISCONNECTED, the code DOES work. So when I unplug my powercable and plug it in again, my Logcat shows me the JackPlugReceiver_debug_tag.
Code
(urls replaced by #### )
Code:
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="####"
package="com.wassenaar.antitheft"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="8"
android:targetSdkVersion="17" />
<application
android:allowBackup="true"
android:icon="@drawable/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme"
android:debuggable="true" >
<activity
android:name="com.wassenaar.antitheft.MainActivity"
android:label="@string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<receiver android:name="JackPlugReceiver" >
<intent-filter>
<action android:name="android.intent.action.HEADSET_PLUG" />
</intent-filter>
</receiver>
</application>
</manifest>
Code:
package com.wassenaar.antitheft;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.util.Log;
public class JackPlugReceiver extends BroadcastReceiver {
[user=439709]@override[/user]
public void onReceive(Context context, Intent intent) {
Log.d("JackPlugReceiver_debug_tag", "onReceive method of JackPlugReceiver has run!");
if (intent.getAction().equals(Intent.ACTION_HEADSET_PLUG)) {
int state = intent.getIntExtra("state", -1);
switch (state) {
case 0:
Log.d("JackPlugReceiver_debug_tag", "Headset is unplugged");
break;
case 1:
Log.d("JackPlugReceiver_debug_tag", "Headset is plugged");
break;
default:
Log.d("JackPlugReceiver_debug_tag", "I have no idea what the headset state is");
}
}
}
}
Logcat
Code:
D/PackageManager(96): Receivers: com.wassenaar.antitheft.JackPlugReceiver
I hope you guys can help me out, I don't know what to do anymore.. Thanks!

Maybe you could share your BroadcastReceiver class and where you register it.

hgpb said:
Maybe you could share your BroadcastReceiver class and where you register it.
Click to expand...
Click to collapse
Stupid, forgot to post that! See the edit above. This is all the code I got.

From what I read, this intent is sent out FLAG_RECEIVER_REGISTERED_ONLY. You won't be able to define the intent in XML
http://stackoverflow.com/questions/6249023/detecting-whether-a-headset-is-plugged-into-an-android-device-or-not/6366238#6366238

Thanks for making this clear. Thought I already tried registering in run time, but apparently I did something wrong. Nevertheless, I learned something new. Thanks for the helpful link to stackoverflow!
Problem solved!

[Q] Can't get ACTION_PACKAGE_ADDED intent to fire

[Solved] I didn't see a place to mark the problem solved, so I did it here so no one would waste their time. Thanks.
I'm trying to get my app to respond anytime a new package is installed.
I have registered the intent in the manifest and created the receiver class, but I can't get onReceive to fire.
While I was playing around with it and trying to debug, I added a constructor to my receiver, and the constructor fires every time that a package is installed. The onReceive method never fires with the constructor in or out though.
I'm not sure where I am going wrong. Anyone have any ideas on what I am doing wrong? Thanks.
Code:
<receiver android:name=".InstallReceiver">
<intent-filter >
<category android:name="android.intent.category.DEFAULT" />
<action android:name="android.intent.action.PACKAGE_ADDED" />
<action android:name="android.intent.action.PACKAGE_CHANGED" />
<action android:name="android.intent.action.PACKAGE_INSTALL" />
<action android:name="android.intent.action.PACKAGE_REMOVED" />
<action android:name="android.intent.action.PACKAGE_REPLACED" />
<data android:scheme="package" />
</intent-filter>
</receiver>
Code:
public class InstallReceiver extends BroadcastReceiver {
public InstallReceiver()
{
//This log will display in the logcat
Log.d("InstallReceiver", "InstallReceiver constructor called.");
}
[user=439709]@override[/user]
public void onReceive(Context context, Intent intent) {
//This log never displays if the constructor is in or commented out
Log.d("InstallReceiver", "Install detected.");
}
}

Why do you have <category android:name="android.intent.category.DEFAULT" /> in your receiver definition? I assume your app isn't just a broadcast receiver??

It was one of the suggested fixes I found in the hours I've spent searching the internet for answers. It still has the same problem if you remove it though. I guess I just forgot to take that one out before I pasted my code.

I created a new project, and cleared all the data from my phone before uninstalling and then re-installing, and it magically started working. So, I'm not sure what the issue was.

I love the mysterious fixes!

What am I doing wrong?

I am trying to combine 2 android apps through a button. The first app is just a regular screen that has one button on it. The second app is an app launcher that shows all apps and opens them when clicked on. I want to make it so that when i click the button in the first app it opens up the second app. I have looked at questions similiar to mine on Stackexchange and have taken their advice by making the second app into a library and importing it, but when i click the button the app shuts down. Am i missing something?
This is the manifest file for the first app:
<uses-sdk
android:minSdkVersion="14"
android:targetSdkVersion="17" />
<application
android:allowBackup="true"
android:icon="@drawable/symbol"
android:label="@string/app_name">
<activity
android:theme="@android:style/Theme.Holo.Wallpaper.NoTitleBar"
android:launchMode="singleTask"
android:name="com.Fuku.Eiko.MainActivity"
android:clearTaskOnLaunch="true"
android:stateNotNeeded="true"
android:screenOrientation="portrait"
android:configChanges="keyboardHidden|orientation|screenSize">
<intent-filter >
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.DEFAULT" />
<category android:name="android.intent.category.HOME" />
</intent-filter>
</activity>
<activity
android:theme="@android:style/Theme.Holo.Wallpaper.NoTitleBar"
android:launchMode="singleTask"
android:name="com.Assistant.Eiko.AppDrawer"
android:clearTaskOnLaunch="true"
android:stateNotNeeded="true"
android:screenOrientation="portrait"
android:configChanges="keyboardHidden|orientation|screenSize">
<intent-filter >
<action android:name="android.intent.action.MAIN" />
</intent-filter>
</activity>
</application>
This is my xml for button:
<Button
android:id="@+id/button"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="@drawable/symbol_button"
android:layout_alignParentBottom="true"
android:layout_centerHorizontal="true"
/>
This is the java file for the first app:
import android.app.*;
import android.os.*;
import android.view.*;
import android.widget.*;
import com.assistant.Eiko.*;
import android.content.*;
public class MainActivity extends Activity
{
/** Called when the activity is first created. */ @override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
Button button = (Button) findViewById(com.assistant.Eiko.R.id.button);
button.setOnClickListener
(new Button.OnClickListener()
{
public void onClick(View v)
{
Intent intent = new Intent(MainActivity.this, com.assistant.Eiko.AppDrawer.class);
startActivity(intent);
}
});
}
I have asked this question on StackExchange but no answers yet. Thank you in advance for any help given. Please be as descriptive as possible. Also I am not using eclipse i am using AIDE( android app editor).
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