A really simple app ^_^ - Java for Android App Development

Hello everyone!
I need help in making a really simple app that can copy a zip i provide in the apk to a folder on the sd card. Im using Android Studio and most of the github repos ive been trying to study and replicate have so far proven unhelpful because of one reason or another. So i would like a small step by step tutorial or just the codes to make that happen.
PS ive got Android Sudio all setup and ready.
I'll be very thankful if someone helps me out :3
Cheers

alicarbovader said:
Hello everyone!
I need help in making a really simple app that can copy a zip i provide in the apk to a folder on the sd card. Im using Android Studio and most of the github repos ive been trying to study and replicate have so far proven unhelpful because of one reason or another. So i would like a small step by step tutorial or just the codes to make that happen.
PS ive got Android Sudio all setup and ready.
I'll be very thankful if someone helps me out :3
Cheers
Click to expand...
Click to collapse
Hi,
you have to be aware that the user needs to open your app before you can start any services to do the copying. And I'm not sure whether extracting files from an apk (even if it's your own) is possible without root (maybe with an expansion file?). I would provide those files over the internet instead. Other than that, where exactly is your problem? If you have no clue of Android development I'd suggest you start reading the developer tutorials.

SimplicityApks said:
Hi,
you have to be aware that the user needs to open your app before you can start any services to do the copying. And I'm not sure whether extracting files from an apk (even if it's your own) is possible without root (maybe with an expansion file?). I would provide those files over the internet instead. Other than that, where exactly is your problem? If you have no clue of Android development I'd suggest you start reading the developer tutorials.
Click to expand...
Click to collapse
Okay about the part of not opening the app, zooper skins are able tp do just exactly that ie getting installed from playstore and bam all the files within the apk get copied to sd card. Im looking for exactly the same thing, but instead of zooper, i intend to have my own zip file being copied to the sdcard.

alicarbovader said:
Okay about the part of not opening the app, zooper skins are able tp do just exactly that ie getting installed from playstore and bam all the files within the apk get copied to sd card. Im looking for exactly the same thing, but instead of zooper, i intend to have my own zip file being copied to the sdcard.
Click to expand...
Click to collapse
Well the zooper apps I tried just now weren't copying something to my storage without me opening them, and I am sure this isn't possible since Android 3.1 (see here). However, something similar might be possible with the app extension files though I am not familiar with how that would work. Is not explicitly starting the app really such an issue?

SimplicityApks said:
Well the zooper apps I tried just now weren't copying something to my storage without me opening them, and I am sure this isn't possible since Android 3.1 (see here). However, something similar might be possible with the app extension files though I am not familiar with how that would work. Is not explicitly starting the app really such an issue?
Click to expand...
Click to collapse
Okay i decided to create a UI for the app, where i can show the screenshot and added a button which you can press to install the theme.
my question now is about this piece of code:
Code:
private void copyAssets() {
AssetManager assetManager = getAssets();
String[] files = null;
try {
files = assetManager.list("");
} catch (IOException e) {
Log.e("tag", "Failed to get asset file list.", e);
}
for(String filename : files) {
InputStream in = null;
OutputStream out = null;
try {
in = assetManager.open(filename);
File outFile = new File(getExternalFilesDir(null), filename);
out = new FileOutputStream(outFile);
copyFile(in, out);
} catch(IOException e) {
Log.e("tag", "Failed to copy asset file: " + filename, e);
}
finally {
if (in != null) {
try {
in.close();
} catch (IOException e) {
// NOOP
}
}
if (out != null) {
try {
out.close();
} catch (IOException e) {
// NOOP
}
}
}
}
}
private void copyFile(InputStream in, OutputStream out) throws IOException {
byte[] buffer = new byte[1024];
int read;
while((read = in.read(buffer)) != -1){
out.write(buffer, 0, read);
}
}
i found it on stackoverflow, and i wanna understand how to use it to copy stuff from my assets folder to /storage/MycolorSCreen/Theme/exported/zip folder

Related

Cold boot auto install

How would I go about performing an automatic installation of several .CAB files after a cold boot of the XDA 2? These CAB files will be located on a storage card and are part of a commercial package.
Thanks
Tony Hudson
One can create a "autorun.exe" in a folder called "2577" on the memorycard..
But I'm really not sure how...
you can auto install
by putting the updates in the extented rom
http://wiki.xda-developers.com/index.php?pagename=ER2003Edit
not sure how you would go about making them be able to be located on the sd card unless you put in a program in the extented rom
which would again auto install the cab files located on the sd card
I have wrote an eVC app for installing multiple .CAB files on an SD card. I am wanting the CAB files to be installed synchronously then the device to be warm booted so I am calling ShellExecuteEx to open the CAB file, WaitForSingleObject to determine when the CAB file has finished and then KernelIoControl to reboot the device.
The problem is that WaitForSingleObject is returning before the CAB file has closed with an error code of 6 which is invalid handle.
info.cbSize = sizeof(info);
info.fMask = SEE_MASK_FLAG_NO_UI;
info.hwnd = NULL;
info.lpVerb = _T("open");
info.lpFile = (LPCWSTR) &szCAB;
info.lpParameters = _T("");
info.lpDirectory = _T("");
info.nShow = SW_SHOW;
// Call to perform an action
ShellExecuteEx(&info);
if ((long)info.hInstApp > 32)
{
dwRetVal = WaitForSingleObject(info.hProcess, INFINITE);
switch(dwRetVal)
{
case WAIT_ABANDONED:
iErrCode = 4;
break;
case WAIT_OBJECT_0:
iErrCode = 4;
break;
case WAIT_FAILED:
dwErr = GetLastError();
iErrCode = 4;
break;
default:
iErrCode = 0;
break;
}
}
When running this in debug mode the CAB file being executed has presented the user with a dialog box prompting to overwrite existing files and the WaitForSingleObject has already returned.
Any suggestions?
Thanks.
Install From Storage Card on Insertion
This details info about autoinstalls from a SD card...
But the application is also uninstalled on removal of the card?
http://msdn.microsoft.com/library/d...P/html/sp_programming_pocket_pc_2002_balr.asp
Thankyou but I have already read this, and the above listing is a section of my autorun.exe application. This does not answer the problem I have documented above but thanks for taking time to assist me.
Just to outline, the problem that I am witnessing is that all the CAB files are being opened before the previous CAB installation has completed and the device is being warm booted without all the CAB files being installed. I need to wait in the looping code until a CAB file has completed its installation. The waitforsingleobject call should do this but it appears to fail. The CAB file has been opened succesfully but the error is that an invalid handle has been provided to the call. Thanks for any help
Doh! How stupid am I - please dont everyone reply. The programming error is in that I assign the return value of WaitForSingleObject to a variable. Change the above code snippet from
dwRetVal = WaitForSingleObject(info.hProcess, INFINITE);
to
WaitForSingleObject(info.hProcess, INFINITE);
and remove the switch..case code and it works fine.
Ok. So I now have my autorun.exe program that installs my CAB files but where do I put it in order for it to automatically install after a cold boot? I have tried the .EXE in "\storage card\2577" and in "\storage\2577" neither of them working. Modifying extended ROM is not an option here as this is a commercial package that is distributed on an SD card. I simply want the user to insert the SD card and then do a cold boot that will then install the CAB files. Is this possible and if so how? Thanks.
Got it all working now, the .EXE does go into the SD card subdirectory \storage card\2577.
HI,
Have you (or someOne else) tried to call registry keys (mostly interested in network connections) from this autorun.exe?
Herman
autorun?
what did you use for an autorun.exe??
is the code u put up earlier comilable to an autrun.exe?
(not a coder per se ,but dibble little here and there)
or is it from the sdk?
It it possible for u to post it as a attachment here?
Re: autorun?
lynxlynx said:
what did you use for an autorun.exe??
is the code u put up earlier comilable to an autrun.exe?
(not a coder per se ,but dibble little here and there)
or is it from the sdk?
It it possible for u to post it as a attachment here?
Click to expand...
Click to collapse
The Autorun.exe file can be whatever exe file you want.
that I understand...but what if I wanna install more than 1 thing...I have a list of stuff I wanna do...like a couple of .cab and some .exe´s and maybe a .cpf.....how can I get them all to run automatically on cardinsert....
I gave the code to a programmer at work..I will see what he comes upp with...but I thinkthat there should be somekind of "public" autrun.exe with a .cfg file with it to download here at xda-dev.
If mine works I will post it later...

How to make Popup Message on CAB Files?

I received a CAB file from my friend, and when I tried to install it, I found that it has a popup message from my friend telling me a joke...
how he do that?
and how can I change that message?
Still No Comment...!
Please Help!
I asume you know how to make a cab to start with????
As you know there are exported functions in the dll that the cab uses (you make the dll). For example this is the normal look of whats exportd. Bellow is whats in the def file.
--------------------------------------------------------------------------
; TestSetup.def : Declares the module parameters for the DLL.
LIBRARY "TESTSETUP"
;DESCRIPTION 'TESTSETUP Windows CE Dynamic Link Library'
EXPORTS
Install_Init
Install_Exit
Uninstall_Init
Uninstall_Exit
now in the code for one of those you just make a dialog like normal.
The code below is cut out of one of my working cabs. Because its in Install_Init it is the first thing to happen. Changing the method to Install_Exit would give the message after the instalation.
#include "stdafx.h"
#include "TestSetup.h"
#include "ce_setup.h"
#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif
#include "MyAboutDialog.h"
BOOL CALLBACK gAboutDialogProc(HWND h_dlg, UINT my_message, WPARAM wpAram, LPARAM lpAram);
static CMyAboutDialog* myAbout= new CMyAboutDialog();
BOOL CALLBACK gAboutDialogProc(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
{
return myAbout->AboutProc(hWnd,uMsg,wParam,lParam);
}
/////////////////////////////////////////////////////////////////////////////
// CTestSetupApp
BEGIN_MESSAGE_MAP(CTestSetupApp, CWinApp)
//{{AFX_MSG_MAP(CTestSetupApp)
// NOTE - the ClassWizard will add and remove mapping macros here.
// DO NOT EDIT what you see in these blocks of generated code!
//}}AFX_MSG_MAP
END_MESSAGE_MAP()
/////////////////////////////////////////////////////////////////////////////
// CTestSetupApp construction
CTestSetupApp::CTestSetupApp()
{
}
/////////////////////////////////////////////////////////////////////////////
// The one and only CTestSetupApp object
CTestSetupApp theApp;
/////////////////////////////////////////////////////////////////////
codeINSTALL_INIT
Install_Init( HWND hwndParent,
BOOL fFirstCall,
BOOL fPreviouslyInstalled,
LPCTSTR pszInstallDir )
{
AFX_MANAGE_STATE(AfxGetStaticModuleState());
DialogBox:AfxGetInstanceHandle(),
MAKEINTRESOURCE(IDD_AboutDIALOG),
hwndParent,
(DLGPROC)gAboutDialogProc);
return codeINSTALL_INIT_CONTINUE;
}
//------------------------------------------------------------------
Of course the detail of the dialog is in the MyAboutDialog. You just make your own to do what you want.
You can do just about anything from the code you put in the cab's dll, but a lot of the instalation should be left up to cabwiz to generate. What ever you do put in the dll will permanently reside in the windows folder until the user removes the program, so don't make it too big.
Thanks Dear OdeeanRDeathshead...
your reply is more than an informative article.
however, I hope if you can answer my second part of the question...
how can I remove the message from a CAB file that i have?
I you want to remove the message on an existing cab then that is more complicated. If you know everything that the cab dose when it gets tapped (eg registry changes etc) then you could gather all the file that the cab installs and use them to re-write them into a new cab that has no messages. This is more trouble than its worth. Unless your friend is willing to give you detailed info on what his cab dose you would be bound to miss something.
Also many messages are as a result of the os, and these vary depending on the version of os. You can't stop some of those (on every platform).
Most people would not want their instalation packages tampered with.
Try to extract the .cab file with Win CE Cab manager. Remove the Setup.dll, hopefully it does not do anything else then showing the joke Then build your own version of it.
for any complex instalation I doubt that doing that would leave you with a working instalation. Still its worth a go if it saves time. What I would like to know (not having vis studio 2005 yet) is why dose the wm2005 device always ask where you want to put the software even when you have turned this feature off? When one's coding gets a bit lazy it can all fall appart when put in a location other than that you expect.
OdeeanRDeathshead, I assume you are referring to whether to install to main memory or to SD question (this dialog pups up on WM5 device with SD inserted or built in storage).
To avoid it remove the InstDir string from your inf file (or change the string name to something else). This will force the software installation to the directory you specify in the cab.
I did not want to hard code the directory, so I used
InstallDir="%CE2%"
That should get the location of the windows folder for the install. Are you saying that if I just put
InstallDir="\windows\"
it will force it there. Dose this mean that there is a new table of Windows CE Directory Identifiers or that installs just always ask if you use them?
No, what I meant was you don’t want a string call 'InstallDir' in your inf file.
The 'InstallDir' is just a string definition you may or may not use later in the inf (like #define in C).
What determines where the files are installed is what's in the [DestinationDirs] section.
For example:
Files.Windows = 0,%CE2%
You should delete the line InstallDir = completely from your inf file, or if this string appears else where (except [CEStrings] section) just change it to something like MyDir= (be sure to change it every ware it appears in the file)

[Q] Adding a new created m3u to MediaStore with MediaScannerConnection doesn't work

Hey everybody, hope you can help me ;-)
my app creates a playlist of type m3u in the folder /sdcard/playlists/filename.m3u.
I'm trying to add the playlist to the MediaStore using MediaScannerConnection, so the playlist is listed in Android's Stock Music App, but it doesn't work: the playlist doesn't show up in the Music App's Category "Playlists".
Here's my code:
Code:
void rescanSD(final File playlistFile) {
msc = new MediaScannerConnection(TracklistActivity.this, new MediaScannerConnectionClient() {
@Override
public void onScanCompleted(String arg0, Uri arg1) {
if (arg0.equals(playlistFile.getAbsolutePath())) {
Log.d("Activity", "File scanned");
msc.disconnect();
}
}
@Override
public void onMediaScannerConnected() {
msc.scanFile(playlistFile.getAbsolutePath(), null);
}
});
msc.connect();
}
The Fileobject File playlistFile is my created m3u-File.
playlistFile.getAbsolutePath() gives: /mnt/sdcard/Music/playlists/filename.m3u
Logcat shows "File scanned", when app has finished, but the playlist doesn't show up in my Music App.
If I initiate a SD-rescan using Tasker the playlist appears in the desired list, so Tasker must be using an other code for realizing that.
Can please anybody tell me where the bug in my code is and give me a suggestion how I can achieve what I want?
Thanks in advance ;-)
Regards ChemDroid

[Q] How do i incorporate these code below into my current existing codes?

I was task to allocate only 1GB of space to store my videos in a particular file directory where it is going to auto-delete the oldest video file in that directory once its about to reach/hit 1GB?
And i eventually found these code but i was left with a problem on how to incorporate these example 1/2 codes into my current existing mainActivity.java file because of the differences in names like "dirlist,tempFile" compared with other examples 1/2 given to perform the task of size checking and deleting.
Sorry i'm kinna new in android/java therefore i don't really know what "fields" to change to suit my current coding needs? Can someone help on how am i going to complie these set of codes into a single set of code which perform the above mention functions??
My Current existing mainActivity.java
Code:
File dirlist = new File(Environment.getExternalStorageDirectory() + "/VideoList");
if(!(dirlist.exists()))
dirlist.mkdir();
File TempFile = new File(Environment.getExternalStorageDirectory()
+ "/VideoList", dateFormat.format(date) + fileFormat);
mediaRecorder.setOutputFile(TempFile.getPath());
(Example 1) code for summing up directory file size in a given folder..
Code:
private static long dirSize(File dir) {
long result = 0;
Stack<File> dirlist= new Stack<File>();
dirlist.clear();
dirlist.push(dir);
while(!dirlist.isEmpty())
{
File dirCurrent = dirlist.pop();
File[] fileList = dirCurrent.listFiles();
for (int i = 0; i < fileList.length; i++) {
if(fileList[i].isDirectory())
dirlist.push(fileList[i]);
else
result += fileList[i].length();
}
}
return result;
}
(Example 2) set of code for getting all the files in an array, and sorts them depending on their modified/created date. Then the first file in your array is your oldest file and delete it.
Code:
// no idea what are the parameters i should enter
// here for my case in mainActivity??
File directory = new File((**String for absolute path to directory**);
File[] files = directory.listFiles();
Arrays.sort(files, new Comparator<File>() {
@Override
public int compare(File f1, File f2)
{
return Long.valueOf(f1.lastModified()).compareTo(f2.lastModified());
}});
file[0].delete();
imso said:
And i eventually found these code but i was left with a problem on how to incorporate these example 1/2 codes into my current existing mainActivity.java file because of the differences in names like "dirlist,tempFile" compared with other examples 1/2 given to perform the task of size checking and deleting.
Click to expand...
Click to collapse
if its a matter of variable names and discrepancies from the sample code to your code then i would recommend an ide with really good refactoring built in. it will let you in a couple clicks rename all the new vars to vars that are already in your code. i use IntelliJ (i know alot of people use Eclipse, but i cant stand it. IntelliJ is really way better to code on)
beyond that id have to sit down and look at what this code is doing to try and help. ill give it a look over but its hard to know whats going on when you havent written the code.

[Tutorial][Xposed] make watchface for Quick Circle

How to create a watchface for Quick Circle
General info
The app that is responsible for the watchface is LGAlarmClock.apk from /system/priv-apps .
This guide will learn you how to create an xposed module to switch those files.
Requirements
To know how to compile source to apk
Android Stuio / gradle project / To know how to reference a jar on a regular project on eclipse
Tutorial:
Create the new watchfaces.
Since we doesn't edit the functionallity of the clock, your image should be compatible with the layout of the original watchface.
The original watchfaces are stored on raw-xxxhdpi folder on the apk. You can decompoile the apk by yourself, or take a look at this.
save the edited image in the same name as the original
Create new android project in your IDE.
add the edited file to raw-xxxhdpi folder inside res folder.
Download the xposed-bridge jar from here.
Reference the jar to your project. In a gradle project you need to add to the dependencies:
Code:
provided files('path to jar')
Note: you don't need to add to jar to the classpath, only reference since it already exists on the firmware.
Create a module class that implements IXposedHookZygoteInit and IXposedHookInitPackageResources. It should look like:
Java:
package com.yoavst.quickcirclemod;
import android.content.res.XModuleResources;
import de.robv.android.xposed.IXposedHookInitPackageResources;
import de.robv.android.xposed.IXposedHookZygoteInit;
import de.robv.android.xposed.callbacks.XC_InitPackageResources;
public class Module implements IXposedHookZygoteInit, IXposedHookInitPackageResources {
// Required for resources
private static String MODULE_PATH = null;
[user=439709]@override[/user]
public void initZygote(StartupParam startupParam) throws Throwable {
MODULE_PATH = startupParam.modulePath;
}
[user=439709]@override[/user]
public void handleInitPackageResources(XC_InitPackageResources.InitPackageResourcesParam resParam) throws Throwable {
// Only if it is the clock package, continue.
if (!resParam.packageName.equals("com.lge.clock")) return;
// Here we will put or modifications.
}
}
Now you need to replace the resources. for example, let's say you edited those files: b2_quickcircle_digital_bg and b2_quickcircle_analog_style01_hour.
Java:
[user=439709]@override[/user]
public void handleInitPackageResources(XC_InitPackageResources.InitPackageResourcesParam resParam) throws Throwable {
// Only if it is the clock package, continue.
if (!resParam.packageName.equals("com.lge.clock")) return;
// Create a reference to our resources
XModuleResources modRes = XModuleResources.createInstance(MODULE_PATH, resParam.res);
// Replace the raw resources with hour resources
resParam.res.setReplacement("com.lge.clock", "raw", "b2_quickcircle_analog_style01_hour", modRes.fwd(R.raw.b2_quickcircle_analog_style01_hour));
resParam.res.setReplacement("com.lge.clock", "raw", "b2_quickcircle_digital_bg", modRes.fwd(R.raw.b2_quickcircle_digital_bg));
}
add an assets folder (in gradle, it is under the "main" folder). add an xposed_init file, this file contain the full classname for your module class. in the example it is: com.yoavst.quickcirclemod.Module
Compile it and see it works (need to be applied in xposed and reboot)
You can check for the source here - https://github.com/yoavst/rolexquickcircle
Awesome thanks!
Nobody is going to take advantage with that?
Gabbyh28 said:
Nobody is going to take advantage with that?
Click to expand...
Click to collapse
http://forum.xda-developers.com/lg-g3/themes-apps/xposed-rolex-watchface-quick-circle-t2862715
Here are the 3 available watchfaces for now (the last one which is a paid one, have more then 1 watchface)

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