[Android] connect and disconnect it necessary functions used in pairs ?

Problem Description:
If you run this code "connect (sendBtn, SIGNAL (clicked ()), this, SLOT (sendMsg ()));" n times , so that when the button click sendBtn , sendMsg ( ) is executed n times ...
I do not know the signals and slots mechanism for internal implementation mechanism , but from the point of view of this phenomenon , when sendBtn is clicked , the system will traverse the clicked () signal is maintained with the slot ( signal ) contact form , to executing the corresponding slots (signal ) function. Because of the above connect the function executes n times , and the slot function are sendMsg (), so we performed n times .

trouble connect function under expert advice and disconnect functions are what had been done ?
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your thread will not be run N times, leading to a press button, the actual trigger N times clicked ()
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you think Qt would like to achieve it , or say you think that the reality of the library would anyone use it ?


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that not all one-time thing , signal is clicked, slot is sendMsg. How are there so many times performed

See signal - slot explain enough . This stuff is not the same for each person to understand .
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will indeed perform a click function n times slots , you can try.