Database Users

[Q] help on eclipse app

Hi guys,
First of all i`m completly noob on this so don`t be much hard with me
ok. i`m trying to develop a simple app just to run 4 simple command to install another app but for now the only thing that i can get to work was asking for su permissions...
can someone help me with this?
Thks a lot
HTML:
try {
runtime.exec("su -c busybox mount -o rw,remount /system");
runtime.exec("cp /sdcard/gscript/xrecovery.sh /data/local/tmp/xrecovery.sh");
runtime.exec("chmod 777 /data/local/tmp/xrecovery.sh");
runtime.exec("/data/local/tmp/xrecovery.sh");
runtime.exec("reboot");
}
catch (IOException e) {
e.printStackTrace();

do not think anyone has the knowledge to help me: .- (
My intention is to create a simple program that installs a file which is in sh sdcard,
"sdcard / gscript / xrecovery.sh"
until now could only be granted access to the root but do not know where and what command should I put to run that sh file...
is that no one can / want help?
thks
HTML:
import java.io.DataOutputStream;
import java.io.IOException;
import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
public class xRecovery extends Activity {
Button app_name;
/** Called when the activity is first created. */
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
app_name = (Button)findViewById(R.id.TextView01);
xRecovery.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {;
}
});
setContentView(R.layout.main);
try {
Runtime.getRuntime().exec("/sdcard/gscript/xrecovery.sh");
} catch (IOException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
try {
Process process = Runtime.getRuntime().exec("su");
DataOutputStream os = new DataOutputStream(process.getOutputStream());
{
os.writeBytes("mount -o rw,remount -t yaffs2 /dev/block/mtdblock03 /system\n" +
"exit \n");
os.flush();
process.waitFor();
}
Runtime.getRuntime().exec("/sdcard/gscript/xrecovery.sh");
} catch (IOException e) {
e.printStackTrace();
} catch (InterruptedException e) {
e.printStackTrace();
}
}
protected String[] getPackageResourcePath(String string) {
// TODO Auto-generated method stub
return null;
}
private static void setOnClickListener(OnClickListener onClickListener) {
// TODO Auto-generated method stub
}
}

You should be able to execute a .sh file by using:
Code:
sh xrecovery.sh

spolfliet said:
You should be able to execute a .sh file by using:
Code:
sh xrecovery.sh
Click to expand...
Click to collapse
Without sdcard path! ?
And where should i put?
Thks; )
Sent from my AOSP on Xperia (US) using XDA App

Of course you need to specify the path (it cannot guess where your script is, unless you add it to your PATH). So I guess the following should work for you:
Code:
Runtime.getRuntime().exec("sh /sdcard/gscript/xrecovery.sh");

Unfortunely i cant make this work UK sure that im putting the command Sony the wrong place. I've allready try put Sony a different pplaces but never work: (
Thks anyway; )
Sent from my AOSP on Xperia (US) using XDA App

really need help!
here is my complete code for what i want to do
HTML:
package com.rendeiro2005.xRecovery;
import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.io.IOException;
import android.app.Activity;
import android.app.AlertDialog;
import android.content.DialogInterface;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.Toast;
public class xRecovery extends Activity {
Button INSTALL;
Button REMOVE;
AlertDialog.Builder builder;
AlertDialog Alert;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
try
{
Process process = Runtime.getRuntime().exec("su");
DataOutputStream outputStream = new DataOutputStream(process.getOutputStream());
DataInputStream inputStream = new DataInputStream(process.getInputStream());
outputStream.writeBytes("\n");
outputStream.flush();
outputStream.writeBytes("exit\n");
outputStream.flush();
process.waitFor();
process.waitFor();
if (process.exitValue() != 255) {
toastMessage("root");
}
else {
toastMessage("not root");
}
}
catch (IOException e)
{
try {
throw new Exception(e);
} catch (Exception e1) {
e1.printStackTrace();
}
}
catch (InterruptedException e)
{
try {
throw new Exception(e);
} catch (Exception e1) {
e1.printStackTrace();
}
}
INSTALL = (Button)findViewById(R.id.Button01);
REMOVE = (Button)findViewById(R.id.Button02);
builder = new AlertDialog.Builder(this);
builder.setMessage("Do you want to install xRecovery?");
builder.setCancelable(false);
builder.setPositiveButton("Yes", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
try {
Runtime.getRuntime().exec("sh /sdcard/gscript/xrecovery.sh");
} catch (IOException e) {
e.printStackTrace();
}
Toast.makeText(getApplicationContext(),
"Done",
Toast.LENGTH_SHORT).show();
}
});
builder.setNegativeButton("No", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
dialog.cancel();
}
});
Alert = builder.create();
INSTALL.setOnClickListener(new OnClickListener(){
@Override
public void onClick(View v) {
Alert.show();
}
});
REMOVE.setOnClickListener(new OnClickListener(){
@Override
public void onClick(View v) {
}
});
}
private void toastMessage(String string) {
}
}
i haven`t donne the uninstall part.
the problem here is everything work as it should exept the "sh" doesn`t do anything.
can anyone help me with this? i`m just trying to understand how the process works
thks a lot

Problem of flashlight app code (Eclipse)

Hello everyone ..
I have problem on developing a flashlight app
I tried the solutions that provided by Eclipse but none solved the problem
or even make any sense to me :angel:
every "Void" statement on the code appeared as an error
and i don't know why .. also i'm sure that everything on the code is correct
Examples of the errors:
private void playSound() {
private void toggleButtonImage() {
private void turnOffFlash() {
and .. etc , i got an error on every "Void" !
so.. i'm waiting for your opinions
Thanks in advance )​

Hi,
It is impossible for us to tell you what you have done wrong if you do not post your source code.
It could be just one character missing somewhere or one to much.
We need your code to help you.
(If you do not want to release it completely, copy your project and remove those parts you do not want us to see. This could also help you with finding the error yourself. )

nikwen said:
Hi,
It is impossible for us to tell you what you have done wrong if you do not post your source code.
It could be just one character missing somewhere or one to much.
We need your code to help you.
(If you do not want to release it completely, copy your project and remove those parts you do not want us to see. This could also help you with finding the error yourself. )
Click to expand...
Click to collapse
Thanks 4 answering me nikwen
i tried to post a screenshot of the problem but i'm a new member in the forum so i couldn't post an external link
anyway .. here's the Code
package com.mohamedsherif.flashlighttorch;
import android.app.Activity;
import android.app.AlertDialog;
import android.content.DialogInterface;
import android.content.pm.PackageManager;
import android.hardware.Camera;
import android.hardware.Camera.Parameters;
import android.media.MediaPlayer;
import android.os.Bundle;
import android.view.Menu;
import android.view.View;
import android.widget.Button;
import android.widget.ImageButton;
import android.widget.ToggleButton;
public class MainActivity extends Activity {
ImageButton switchButton;
private Camera camera;
private boolean isFlashOn;
private boolean hasFlash;
Parameters params;
MediaPlayer mp;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Button button = (Button) findViewById(R.id.switchButton);
//Check if the Device has Flash
hasFlash = getApplicationContext().getPackageManager().hasSystemFeature(PackageManager.FEATURE_CAMERA_FLASH);
if(!hasFlash) {
AlertDialog alert = new AlertDialog.Builder(MainActivity.this).create();
alert.setTitle("Error! ");
alert.setMessage("Sorry! .. Your device doesn't have a flash!");
alert.setButton("ok", new DialogInterface.OnClickListener() {
@Override
public void onClick(final DialogInterface dialog, final int which) {
finish();
}
});
alert.show();
return;
}
//Getting camera parameters
private void getCamera() {
if (camera == null) {
try {
camera = Camera.open();
params = camera.getParameters();
} catch (RuntimeException e) {
Log.e("Camera Error. Failed to open. Error", e.getMessage());
}
}
}
private void turnOnFlash() {
if (!hasFlash) {
if (camera == null || params == null) {
return;
}
playSound();
params = camera.getParameters();
params.setFlashMode(Parameters.FLASH_MODE_TORCH);
camera.setParameters(params);
camera.startPreview();
isFlashOn = true;
toggleButtonImage();
}
}
//Turning off flash
private void turnOffFlash() {
if (isFlashOn) {
if (camera == null || params == null) {
return;
}
playSound();
params = camera.getParameters();
params.setFlashMode(Parameters.FLASH_MODE_OFF);
camera.setParameters(params);
camera.stopPreview();
isFlashOn = false;
toggleButtonImage();
}
};
button.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
if (isFlashOn) {
turnOffFlash();
} else {
turnOnFlash();
}
}
});
// Toggle buttons images
private void toggleButtonImage() {
if (isFlashOn) {
switchButton.setImageResource(R.drawable.switch_on);
} else {
switchButton.setImageResource(R.drawable.switch_off);
}
}
// Playing Sound
private void playSound() {
if (isFlashOn) {
mp = MediaPlayer.create(MainActivity.this, R.raw.light_switch_off);
} else {
mp = MediaPlayer.create(MainActivity.this, R.raw.light_switch_on);
}
mp.setOnCompletionListener(new OnCompletionListener() {
@Override
public void onCompletion(MediaPlayer mp) {
mp.release();
}
});
mp.start();
}
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
}
Click to expand...
Click to collapse
the errors are in RED ​

little changes
private static Camera camera;
private boolean isFlashOn;
private boolean hasFlash;
Parameters params;
MediaPlayer mp;
ToggleButton switchButton;
@override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_flashlight);
getCamera();
switchButton = (ToggleButton) findViewById(R.id.tglOnOffFlashlight);
switchButton.setOnClickListener(new View.OnClickListener() {
@override
public void onClick(View v) {
if (isFlashOn) {
turnOffFlash();
} else {
turnOnFlash();
}
}
});
//Check if the Device has Flash
hasFlash = getApplicationContext().getPackageManager().hasSystemFeature(PackageManager.FEATURE_CAMERA_FLASH);
if(!hasFlash) {
AlertDialog alert = new AlertDialog.Builder(FlashlightActivity.this).create();
alert.setTitle("Error! ");
alert.setMessage("Sorry! .. Your device doesn't have a flash!");
alert.setButton("ok", new DialogInterface.OnClickListener() {
@override
public void onClick(final DialogInterface dialog, final int which) {
finish();
}
});
alert.show();
return;
}
}
//Getting camera parameters
private void getCamera() {
if (camera == null) {
try {
camera = Camera.open();
params = camera.getParameters();
} catch (RuntimeException e) {
Log.e("Camera Error. Failed to open. Error", e.getMessage());
}
}
}
private void turnOnFlash() {
if (hasFlash) {
if (camera == null || params == null) {
return;
}
playSound();
params = camera.getParameters();
params.setFlashMode(Parameters.FLASH_MODE_TORCH);
camera.setParameters(params);
camera.startPreview();
isFlashOn = true;
toggleButtonImage();
}
}
//Turning off flash
private void turnOffFlash() {
if (isFlashOn) {
if (camera == null || params == null) {
return;
}
playSound();
params = camera.getParameters();
params.setFlashMode(Parameters.FLASH_MODE_OFF);
camera.setParameters(params);
camera.stopPreview();
isFlashOn = false;
toggleButtonImage();
}
}
// Toggle buttons images
private void toggleButtonImage() {
if (isFlashOn) {
switchButton.setBackgroundResource(R.drawable.on_yellow );
} else {
switchButton.setBackgroundResource(R.drawable.off_white);
}
}
// Playing Sound
private void playSound() {
if (isFlashOn) {
mp = MediaPlayer.create(FlashlightActivity.this, R.raw.light_switch_off);
} else {
mp = MediaPlayer.create(FlashlightActivity.this, R.raw.light_switch_on);
}
mp.setOnCompletionListener(new MediaPlayer.OnCompletionListener() {
@override
public void onCompletion(MediaPlayer mp) {
mp.release();
}
});
mp.start();
}
these work

Does it work on other projects?
It is working for him, so I guess that the errors are not in the code but maybe your project setup or your installation of Eclipse and the Android SDK is the reason for that.
So to quote myself " Does it work on other projects?".
---------- Post added at 09:59 PM ---------- Previous post was at 09:55 PM ----------
Oh no, there are mistakes with the brackets.
For example you set a listener somewhere inside a methods. However, you forgot to close the bracket (I mean these ones {}). So it ends with a semicolon. It wants more lines of code.
So check your brackets.

Void methods should not return anything. So you can remove all 'return' words in the void methods.
Sent from my NexusHD2 using xda app-developers app

Eztys said:
Void methods should not return anything. So you can remove all 'return' words in the void methods.
Sent from my NexusHD2 using xda app-developers app
Click to expand...
Click to collapse
These returns ARE allowed. They are not necessary but allowed. You can stop the method by this.
It is really a problem with these brackets {}.

krsln said:
private static Camera camera;
private boolean isFlashOn;
private boolean hasFlash;
Parameters params;
MediaPlayer mp;
ToggleButton switchButton;
@override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_flashlight);
getCamera();
switchButton = (ToggleButton) findViewById(R.id.tglOnOffFlashlight);
switchButton.setOnClickListener(new View.OnClickListener() {
@override
public void onClick(View v) {
if (isFlashOn) {
turnOffFlash();
} else {
turnOnFlash();
}
}
these work
Click to expand...
Click to collapse
the same problem with the Void errors !! -.-
nikwen said:
Does it work on other projects?
It is working for him, so I guess that the errors are not in the code but maybe your project setup or your installation of Eclipse and the Android SDK is the reason for that.
So to quote myself " Does it work on other projects?".
---------- Post added at 09:59 PM ---------- Previous post was at 09:55 PM ----------
Oh no, there are mistakes with the brackets.
For example you set a listener somewhere inside a methods. However, you forgot to close the bracket (I mean these ones {}). So it ends with a semicolon. It wants more lines of code.
So check your brackets.
Click to expand...
Click to collapse
i tried the code on a new project but i got the same errors
also i don't think there's any problem with the brackets ?
Eztys said:
Void methods should not return anything. So you can remove all 'return' words in the void methods.
Sent from my NexusHD2 using xda app-developers app
Click to expand...
Click to collapse
the return is not the problem ​

i just solved the void errors but the app is not running on the virtual device !
"the app has stopped unexpectedly"
can anyone try the code ? or even tell me what's wrong ?
BTW the code doesn't contain any errors now .. not even the void errors
package com.mohamedsherif.flashlighttorch;
import android.app.Activity;
import android.app.AlertDialog;
import android.content.DialogInterface;
import android.content.pm.PackageManager;
import android.hardware.Camera;
import android.hardware.Camera.Parameters;
import android.media.MediaPlayer;
import android.media.MediaPlayer.OnCompletionListener;
import android.os.Bundle;
import android.util.Log;
import android.view.Menu;
import android.view.View;
import android.widget.Button;
import android.widget.ImageButton;
public class MainActivity extends Activity {
ImageButton switchButton;
private Camera camera;
private boolean isFlashOn;
private boolean hasFlash;
Parameters params;
MediaPlayer mp;
@SuppressWarnings("deprecation")
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Button button = (Button) findViewById(R.id.switchButton);
//Check if the Device has Flash
hasFlash = getApplicationContext().getPackageManager().hasSystemFeature(PackageManager.FEATURE_CAMERA_FLASH);
if(!hasFlash) {
AlertDialog alert = new AlertDialog.Builder(MainActivity.this).create();
alert.setTitle("Error! ");
alert.setMessage("Sorry! .. Your device doesn't have a flash!");
alert.setButton("ok", new DialogInterface.OnClickListener() {
@Override
public void onClick(final DialogInterface dialog, final int which) {
finish();
}
});
alert.show();
return;
}
getCamera();
toggleButtonImage();
button.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if (isFlashOn) {
turnOffFlash();
} else {
turnOnFlash();
}
}
});
}
//Getting camera parameters
private void getCamera() {
if (camera == null) {
try {
camera = Camera.open();
params = camera.getParameters();
} catch (RuntimeException e) {
Log.e("Camera Error. Failed to open. Error: ", e.getMessage());
}
}
}
private void turnOnFlash() {
if (!hasFlash) {
if (camera == null || params == null) {
return;
}
playSound();
params = camera.getParameters();
params.setFlashMode(Parameters.FLASH_MODE_TORCH);
camera.setParameters(params);
camera.startPreview();
isFlashOn = true;
toggleButtonImage();
}
}
//Turning off flash
private void turnOffFlash() {
if (isFlashOn) {
if (camera == null || params == null) {
return;
}
playSound();
params = camera.getParameters();
params.setFlashMode(Parameters.FLASH_MODE_OFF);
camera.setParameters(params);
camera.stopPreview();
isFlashOn = false;
toggleButtonImage();
}
};
// Toggle buttons images
private void toggleButtonImage() {
if (isFlashOn) {
switchButton.setImageResource(R.drawable.switch_on);
} else {
switchButton.setImageResource(R.drawable.switch_off);
}
}
// Playing Sound
private void playSound() {
if (isFlashOn) {
mp = MediaPlayer.create(MainActivity.this, R.raw.light_switch_off);
} else {
mp = MediaPlayer.create(MainActivity.this, R.raw.light_switch_on);
}
mp.setOnCompletionListener(new OnCompletionListener() {
@Override
public void onCompletion(MediaPlayer mp) {
mp.release();
}
});
mp.start();
}
@Override
protected void onDestroy() {
super.onDestroy();
}
@Override
protected void onPause() {
// TODO Auto-generated method stub
super.onPause();
turnOffFlash();
}
@Override
protected void onRestart() {
// TODO Auto-generated method stub
super.onRestart();
}
@Override
protected void onResume() {
// TODO Auto-generated method stub
super.onResume();
if (hasFlash)
turnOnFlash();
}
@Override
protected void onStart() {
// TODO Auto-generated method stub
super.onStart();
getCamera();
}
@Override
protected void onStop() {
// TODO Auto-generated method stub
super.onStop();
if (camera != null) {
camera.release();
camera = null;
}
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
}
Click to expand...
Click to collapse

M. Sherif said:
i just solved the void errors but the app is not running on the virtual device !
"the app has stopped unexpectedly"
can anyone try the code ? or even tell me what's wrong ?
BTW the code doesn't contain any errors now .. not even the void errors
​
Click to expand...
Click to collapse
There will be a logcat. Post it here.

[NEWBIE] App is crashing, Please Help....

Code:
package com.example.dolaog;
import android.location.GpsStatus.Listener;
import android.os.Bundle;
import android.app.Activity;
import android.app.AlertDialog;
import android.app.AlertDialog.Builder;
import android.app.Dialog;
import android.app.ProgressDialog;
import android.content.DialogInterface;
import android.view.Menu;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.ProgressBar;
import android.widget.Toast;
import android.os.Handler;
public class MainActivity extends Activity implements OnClickListener {
Button b, b2, b3;
View a;
ProgressDialog d;
Handler handler;
Thread t = new Thread() {
public void run() {
// TODO Auto-generated method stub
try {
sleep(5000);
handler.post(new Runnable() {
public void run() {
d.dismiss();
}
});
} catch (InterruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
};
protected void onCreate(Bundle savedInstanceState) {
handler = new Handler();
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
b = (Button) findViewById(R.id.button1);
b3 = (Button) findViewById(R.id.button3);
b2 = (Button) findViewById(R.id.button2);
b.setOnClickListener(this);
b2.setOnClickListener(this);
b3.setOnClickListener(this);
}
public void onClick(View arg0) {
switch (arg0.getId()) {
case R.id.button1:
showDialog(0);
break;
case R.id.button2:
d = ProgressDialog.show(this, "Initialising", " Please wait...",
true);
t.start();
break;
case R.id.button3:
showDialog(1);
d.setProgress(0);
new Thread(new Runnable() {
public void run() {
for (int i = 1; i <= 15; i++) {
try {
// ---simulate doing something lengthy---
Thread.sleep(1000);
// ---update the dialog---
d.incrementProgressBy((int) (100 / 15));
} catch (InterruptedException e) {
e.printStackTrace();
}
}
d.dismiss();
}
}).start();
break;
}
}
protected Dialog onCreateDialog(int g) {
Builder b = new AlertDialog.Builder(this);
switch (g) {
case 0:
b.setIcon(R.drawable.ic_launcher);
b.setTitle("From Crazyandroidgalaxy, please hit me !!");
b.setPositiveButton("asd", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface arg0, int arg1) {
// TODO Auto-generated method stub
Toast.makeText(getBaseContext(),
"I am Tanmay aka Crazyandroidgalaxy admin!",
Toast.LENGTH_LONG).show();
}
});
return b.create();
case 1:
d.setIcon(R.drawable.ic_launcher);
d.setTitle("Downloading");
d.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);
d.setButton(DialogInterface.BUTTON_POSITIVE, "OK",
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog,
int whichButton) {
Toast.makeText(getBaseContext(), "OK clicked",
Toast.LENGTH_SHORT).show();
}
});
d.setButton(DialogInterface.BUTTON_NEGATIVE, "cancel",
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog,
int whichButton) {
Toast.makeText(getBaseContext(), "cancel clicked",
Toast.LENGTH_SHORT).show();
}
});
return d;
}
return null;
}
}
________________
Obviously, the above code is not working. The app is crashing, when i click the b3 button...
Please help me out!
Thanks in advance...

Please read this to help yourself: [GUIDE] Debugging apps
At least read this for posting your problem on XDA: http://forum.xda-developers.com/showpost.php?p=42601921&postcount=9
---------- Post added at 01:24 PM ---------- Previous post was at 12:51 PM ----------
You cannot modify the UI/ dismiss a dialog from another thread.
Use a Handler and its post method.
However, please read the debugging thread. After reading that, you would have easily figured out what is wrong.

nikwen said:
Please read this to help yourself: [GUIDE] Debugging apps
At least read this for posting your problem on XDA: http://forum.xda-developers.com/showpost.php?p=42601921&postcount=9
---------- Post added at 01:24 PM ---------- Previous post was at 12:51 PM ----------
You cannot modify the UI/ dismiss a dialog from another thread.
Use a Handler and its post method.
However, please read the debugging thread. After reading that, you would have easily figured out what is wrong.
Click to expand...
Click to collapse
Oh! thanks. I completely forgot about the last correction you made, in my code

Dynamically loading an external library at runtime

I am using and android 2.2 phone for testing and getting an error which is driving me crazy
07-27 01:24:55.692: W/System.err(14319): java.lang.ClassNotFoundException: com.shoaib.AndroidCCL.MyClass in loader [email protected]
Can someone help me what to do now..i have tried various suggested solutions on different posts
First I wrote the following class:
Code:
package org.shoaib.androidccl;
import android.util.Log;
public class MyClass {
public MyClass() {
Log.d(MyClass.class.getName(), "MyClass: constructor called.");
}
public void doSomething() {
Log.d(MyClass.class.getName(), "MyClass: doSomething() called.");
}
}
And I packaged it in a DEX file that I saved on my device's SD card as `/sdcard/testdex.jar`.
Then I wrote the program below, after having removed `MyClass` from my Eclipse project and cleaned it:
Code:
public class Main extends Activity {
[user=1299008]@supp[/user]ressWarnings("unchecked")
[user=439709]@override[/user]
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
try {
final String libPath = Environment.getExternalStorageDirectory() + "/testdex.jar";
final File tmpDir = getDir("dex", 0);
final DexClassLoader classloader = new DexClassLoader(libPath, tmpDir.getAbsolutePath(), null, this.getClass().getClassLoader());
final Class<Object> classToLoad = (Class<Object>) classloader.loadClass("org.shoaib.androidccl.MyClass");
final Object myInstance = classToLoad.newInstance();
final Method doSomething = classToLoad.getMethod("doSomething");
doSomething.invoke(myInstance);
} catch (Exception e) {
e.printStackTrace();
}
}
}

As far as I know you can't load external dex classes (and certainly not a jar file), the only ones that can be loaded are the ones packaged in the classes.dex file inside the APK and protected by its signature and certificate.
This would be quite a security flaw if your app could be "clean" at install but then download malicious classes and execute them.

[Q] rmtp / mms player

hi friends
i can't play rtmp or mss protocol in android project (just audio live stream )
my code :
Code:
package sample.media.player;
import java.io.IOException;
import android.app.Activity;
import android.media.AudioManager;
import android.media.MediaPlayer;
import android.media.MediaPlayer.OnErrorListener;
import android.media.MediaPlayer.OnPreparedListener;
import android.os.Bundle;
public class SampleMediaPlayerActivity extends Activity implements OnErrorListener, OnPreparedListener {
private MediaPlayer player;
[user=439709]@override[/user]
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
player = new MediaPlayer();
player.setAudioStreamType(AudioManager.STREAM_MUSIC);
try {
player.setDataSource("rtmp://199.103.63.202/live&file=irib3"); // rtmp link
player.setOnErrorListener(this);
player.setOnPreparedListener(this);
player.prepareAsync();
}
catch (IllegalArgumentException e) {
e.printStackTrace();
}
catch (IllegalStateException e) {
e.printStackTrace();
}
catch (IOException e) {
e.printStackTrace();
}
}
[user=439709]@override[/user]
public void onDestroy() {
super.onDestroy();
player.release();
player = null;
}
[user=439709]@override[/user]
public void onPrepared(MediaPlayer play) {
play.start();
}
[user=439709]@override[/user]
public boolean onError(MediaPlayer arg0, int arg1, int arg2) {
return false;
}
}
please help me / thanks:good:

Is it crashing or does it do nothing? Logcat?

LogCat:
Level : E
PID : 222
Application : Simple.Media.Player
Tag : MediaPlayer
Text : Error(1,-1)

help me plzzzzzzzzzzzz

nobodyyyyyy ????

takname said:
LogCat:
Level : E
PID : 222
Application : Simple.Media.Player
Tag : MediaPlayer
Text : Error(1,-1)
Click to expand...
Click to collapse
There should be more log code which is important. In every case there should be an Exception which is thrown.
I just found this library: http://www.aftek.com/afteklab/aftek-RTMP-library.shtml
Might be helpful.
(Both formats are not natively supported by the Android platform: http://developer.android.com/guide/appendix/media-formats.html)