android —— Handler的内存泄漏

private class MyHandler extends Handler {

//弱引用防止内存泄漏

WeakReferencem Activity;

public MyHandler(MainActivity activity){

mActivity=newWeakReference(activity);

}

public void handleMessage(android.os.Message msg) {

MainActivity activity =mActivity.get();

switch(msg.what) {

caseERROR:

Toast.makeText(activity,"网络异常",Toast.LENGTH_SHORT).show();

break;

caseERROR_CITY:

String str = (String) msg.obj;

urlLog.setText(str);

Toast.makeText(activity,"检查url是否正确",Toast.LENGTH_SHORT).show();

break;

caseSUCCESS:

String strw = (String) msg.obj;

urlLog.setText(strw);

break;

caseTIMEOK:

String strTime = (String) msg.obj;

time.setText(strTime);

break;

caseMD5:

String md = (String) msg.obj;

urlLog.setText(md);

break;

}

}

}