Question

我想为gridview图像创建fling（滑动）动作。我使用此图像enter image description here实现了网格视图图像，当我点击网格视图图像时，它将转到全屏图像。现在显示完整图像然后用手指触摸从左到右滑动图像。这里不使用视图鳍状肢，因为这里有更多图像。点击哪个图像显示并向右或向左滑动。感谢

android image gridview swipe

Answer 1

试试此代码

public class MainActivity extends Activity  {
private Integer[] mImageIds = { R.drawable.img1, R.drawable.img2,R.drawable.img3 };
private static final String DEBUG_TAG = "MainActivity ";
ImageView imageView;
float startXValue = 1;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE);
setContentView(R.layout.gallery);
imageView = (ImageView) findViewById(R.id.image_place_holder);
imageView.setImageResource(mImageIds[num]);
}
@Override
public boolean onTouchEvent(MotionEvent event) {    
float endXValue = 0;
float x1 = event.getAxisValue(MotionEvent.AXIS_X);
int action = MotionEventCompat.getActionMasked(event);
switch (action) {
    case (MotionEvent.ACTION_DOWN):
        startXValue = event.getAxisValue(MotionEvent.AXIS_X);

        return true;

    case (MotionEvent.ACTION_UP):
        endXValue = event.getAxisValue(MotionEvent.AXIS_X);
        if (endXValue > startXValue) {
            if (endXValue - startXValue > 100) {
            System.out.println("Left-Right");
            imageView.setImageResource(mImageIds[2]);
            }
        }else {
            if (startXValue -endXValue> 100) {
            System.out.println("Right-Left");
            imageView.setImageResource(mImageIds[0]);

                 }
                     }
    return true;


       default:
    return super.onTouchEvent(event);
 }
}
}

从左到右滑动图像

1 个答案: