Debugging example for Android Development

Package AndroidApi;

Import android. util. Log;

Class Monitoring implements Runnable

{

Public void run ()

{

While (! Thread. currentThread (). isInterrupted ())

{

Try

{

Thread. sleep (100 );

} Catch (InterruptedException s)

{

Thread. currentThread (). interrupt ();

}

AndroidDebug. printVaryMemory ();

}

}

}

Public class AndroidDebug

{

Private static boolean m_bIsDebug = false;

/**

* Set the debugging mode.

*

* @ Param bIsDebug

*/

Public static void setMode (boolean bIsDebug)

{

M_bIsDebug = bIsDebug;

}

/**

* Debug mode or not

* @ Return

*/

Public static boolean isDebug ()

{

Return m_bIsDebug;

}

/**

* Print information

*

* @ Param strTxt

*/

Public static void println (String strTxt)

{

If (m_bIsDebug)

{

System. out. println (strTxt );

}

}

/**

* Print information

*

* @ Param strTxt

*/

Public static void Log (String strTag, String strTxt)

{

If (m_bIsDebug)

{

Log. I (strTag, strTxt );

}

}

/**

* Forcibly recycle garbage, which can be used to detect destructor and detect whether unused objects have

*/

Public static void gc ()

{

If (m_bIsDebug)

{

System. gc ();

}

}

/**

* Print the total heap volume.

*/

Public static void printTotalMemory ()

{

Runtime r = Runtime. getRuntime ();

AndroidDebug. println ("Total memory is:" + r. totalMemory ());

}

/**

* Print heap remaining amount

*/

Public static void printFreeMemory ()

{

Gc (); // execute force reclaim to obtain accurate residual amount

Runtime r = Runtime. getRuntime ();

AndroidDebug. println ("Free memory is:" + r. freeMemory ());

}

/**

* Print heap changes

*/

Static long longPre = 0;

Public static void printVaryMemory ()

{

Gc (); // execute force reclaim to obtain accurate residual amount

Runtime r = Runtime. getRuntime ();

Long longNow = r. freeMemory ();

If (longNow> longPre)

{

AndroidDebug. println ("Free memory->:" + (longNow-longPre ));

LongPre = longNow;

} Else if (longNow <longPre)

{

AndroidDebug. println ("Free memory <-:" + (longPre-longNow ));

LongPre = longNow;

}

}

/**

* Monitoring memory

*

* @ Param bIsOpen

*/

Private static Thread m_pThread = null;

Public static void setMonitore (boolean bIsOpen)

{

If (bIsOpen)

{

If (null = m_pThread)

M_pThread = new Thread (new Monitoring ());

M_pThread.setDaemon (true );

M_pThread.start ();

}

Else

{

If (null! = M_pThread)

{

M_pThread.interrupt ();

M_pThread = null;

}

}

}