这个标题对我的问题不公平,但我们开始吧。我遵循教程并在我的应用程序内的 Activity 中添加了滑动操作。现在此 Activity 嵌套在 TabHost 中。但是,当应用程序运行时,滑动操作在 TabHost 内不起作用,但在单独调用 Activity 时它会起作用。
如果您需要代码,我会发布它,但出于商业原因我宁愿不发布。
最佳答案
好吧,我明白了。这是代码:
public class services extends Activity {
private static final int SWIPE_MIN_DISTANCE = 120;
private static final int SWIPE_MAX_OFF_PATH = 250;
private static final int SWIPE_THRESHOLD_VELOCITY = 200;
private GestureDetector gestureDetector;
View.OnTouchListener gestureListener;
private Animation slideLeftIn;
private Animation slideLeftOut;
private Animation slideRightIn;
private Animation slideRightOut;
private ViewFlipper viewFlipper;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
viewFlipper = (ViewFlipper)findViewById(R.id.viewFlipper1);
slideLeftIn = AnimationUtils.loadAnimation(this, R.anim.slide_left_in);
slideLeftOut = AnimationUtils.loadAnimation(this, R.anim.slide_left_out);
slideRightIn = AnimationUtils.loadAnimation(this, R.anim.slide_right_in);
slideRightOut = AnimationUtils.loadAnimation(this, R.anim.slide_right_out);
gestureDetector = new GestureDetector(new MyGestureDetector());
gestureListener = new View.OnTouchListener() {
public boolean onTouch(View v, MotionEvent event) {
if (gestureDetector.onTouchEvent(event)) {
return true;
}
return false;
}
};
}
class MyGestureDetector extends SimpleOnGestureListener {
@Override
public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX, float velocityY) {
try {
if (Math.abs(e1.getY() - e2.getY()) > SWIPE_MAX_OFF_PATH)
return false;
// right to left swipe
if(e1.getX() - e2.getX() > SWIPE_MIN_DISTANCE && Math.abs(velocityX) > SWIPE_THRESHOLD_VELOCITY) {
viewFlipper.setInAnimation(slideLeftIn);
viewFlipper.setOutAnimation(slideLeftOut);
viewFlipper.showNext();
} else if (e2.getX() - e1.getX() > SWIPE_MIN_DISTANCE && Math.abs(velocityX) > SWIPE_THRESHOLD_VELOCITY) {
viewFlipper.setInAnimation(slideRightIn);
viewFlipper.setOutAnimation(slideRightOut);
viewFlipper.showPrevious();
}
} catch (Exception e) {
// nothing
}
return false;
}
}
@Override
public boolean onTouchEvent(MotionEvent event) {
gestureDetector.onTouchEvent(event);
return true;
}
在 onTouchEvent(MotionEvent event)
中发生的事情我不得不删除 if()
语句和 else()
语句并打开gestureDetector.onTouchEvent(事件);
return false;
语句到 return true;
我希望这对其他人有帮助。我正在继续努力以获得恒定的流畅运动,以便 View 跟随用户的手势。
关于android - TabHost,滑动 Intent 失败,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/7325231/