Android Android to determine whether to swipe

(Transferred from: http://blog.csdn.net/angle_rupert/article/details/6255522)

Statement:

1     float x_temp01 = 0.0f; 2     float y_temp01 = 0.0f; 3     float x_temp02 = 0.0f; 4     float

Ontouchevent method for overriding activity:

1 @Override2      Public Booleanontouchevent (motionevent event)3     {4         //get current coordinates5             floatx =event.getx ();6             floaty =event.gety ();7             8             Switch(Event.getaction ())9             {Ten                      CaseMotionevent.action_down: One                     { AX_TEMP01 =x; -Y_TEMP01 =y; -                     } the                      Break; -                      Casemotionevent.action_up: -                     { -X_TEMP02 =x; +Y_TEMP02 =y; -                          +                         if(X_temp01!=0 && y_temp01!=0)// A                         { at                                 //Compare X_TEMP01 and X_temp02 -                                 //X_TEMP01>X_TEMP02//left -                                 //X_TEMP01==X_TEMP02//In a vertical direction or not moving . -                                 //X_TEMP01<X_TEMP02//Right -                                  -                                 if(X_TEMP01&GT;X_TEMP02)//left in                                 { -                                         //moved the X_TEMP01-X_TEMP02 to                                 } +                                  -                                 if(X_TEMP01&LT;X_TEMP02)//Right the                                 { *                                         //moved the X_TEMP02-X_TEMP01 $                                 }Panax Notoginseng                         } -                     } the                      Break; +                      CaseMotionevent.action_move: A                     { the                              +                     } -                      Break; $  $             } -             return Super. Ontouchevent (event); -}

Note that the test is feasible, simple and useful;

Change your own decision whether to swipe:

1          CaseMotionevent.action_down: {2Ismove =false;3downx=x;4downy=y;5                          Break;6                      }7          Casemotionevent.action_up: {8UpX =x;9upy=y;Ten             if((upx-downx!=0) | | (upy-downy!=0)) OneIsmove=true; A             Else -Ismove=false; -                          Break; the}

Android Android to determine whether to swipe