Question

http://s10.postimg.org/knckl2n4p/Untitled.png [^]

我喜欢这个结果。请帮我。我尝试过，但我不是这样的。我是android的新手。感谢..

Answer 1

由于您不需要标签功能，因此可以使用GestureDetector.SimpleOnGestureListener

在您的活动类中：

class MyGestureDetector extends SimpleOnGestureListener {
        @Override
        public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX,
                float velocityY) {
            try {
                float slope = (e1.getY() - e2.getY()) / (e1.getX() - e2.getX());
                float angle = (float) Math.atan(slope);
                float angleInDegree = (float) Math.toDegrees(angle);
                // left to right
                if (e1.getX() - e2.getX() > 20 && Math.abs(velocityX) > 20) {
                    if ((angleInDegree < 45 && angleInDegree > -45)) {                      
          //code for left to right swipe should go here
        }
                    // right to left fling
                } else if (e2.getX() - e1.getX() > 20
                        && Math.abs(velocityX) > 20) {
                    if ((angleInDegree < 45 && angleInDegree > -45)) {
      //code for right to left swipe should go here

                    }
                }
                return true;
            } catch (Exception e) {
                // nothing
            }
            return false;
        }
    }

然后，您可以注册任何视图以接收/收听手势：

 final GestureDetector  gestureDetector = new GestureDetector(new MyGestureDetector());
                gameView.setOnTouchListener(new View.OnTouchListener() {
                    @Override
                    public boolean onTouch(View v, MotionEvent event) {
                        if (gestureDetector.onTouchEvent(event)) return false;
                        return false;
                    }
                });
         //the parent layout   
                findViewById(R.id.parent_layout).setOnTouchListener(new View.OnTouchListener() {
                    @Override
                    public boolean onTouch(View v, MotionEvent event) {
                        if (gestureDetector.onTouchEvent(event)) return false;
                        return false;
                    }
                });
         //an image view
        findViewById(R.id.image_view).setOnTouchListener(new View.OnTouchListener() {
                    @Override
                    public boolean onTouch(View v, MotionEvent event) {
                        if (gestureDetector.onTouchEvent(event)) return false;
                        return false;
                    }
                });

Answer 2

我知道你很困惑并希望得到答案，但我们非常感谢您发布自己的代码和错误（如果有的话），以便我们可以通过查看错误的位置直接帮助您。！

可能是这个（我这样做了）会帮助你：

1-根据需要制作任意数量的页面。在您的布局中，即page1.xml，page2.xml .....

2-将此内容写入您的activity_main.xml

<android.support.v4.view.ViewPager
    android:id="@+id/customviewpager"
    android:layout_width="match_parent"
    android:layout_height="match_parent" />

3-在主要班级

protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    // Create and set adapter
    Pager adapter = new Pager();
    ViewPager myPager = (ViewPager) findViewById(R.id.customviewpager);
    myPager.setAdapter(adapter);
    myPager.setCurrentItem(0); // 0 shows starting page which you have on switch case index 0

    }

4-在同一个包中创建另一个类我

public class Pager extends PagerAdapter {
public Object instantiateItem(View collection, int position) {
    LayoutInflater inflater = (LayoutInflater) collection.getContext()
            .getSystemService(Context.LAYOUT_INFLATER_SERVICE);
    int resId = 0;
    switch (position) {
    case 0: {
        resId = R.layout.page1;
        break;
    }
    case 1: {
        resId = R.layout.page2;
        break;
    }
    case 2: {
        resId = R.layout.page3;
        break;
    }

    }
    View view = inflater.inflate(resId, null);
    ((ViewPager) collection).addView(view, 0);
    return view;
}

@Override
public void destroyItem(View arg0, int arg1, Object arg2) {
    ((ViewPager) arg0).removeView((View) arg2);
}

@Override
public boolean isViewFromObject(View arg0, Object arg1) {
    return arg0 == ((View) arg1);
}

@Override
public Parcelable saveState() {
    return null;
}

@Override
public int getCount() {
    return 3; //total page count
    }
}

5-导入所需的库。！

希望这会对你有所帮助，我以前也学到了这一点：）

如何在Android和滑动中向右滑动

2 个答案: