Question

在我的活动中，我有一个imageView（在顶部）和textView（在底部）。使用两个视图我显示图像及其相应的描述。我已经使用'SimpleOnGestureListener'实现了fling，以便用户可以浏览不同的图像及其相应的描述（在每次投掷时，我加载不同的图像并将其显示给用户）。

现在，当我为ImageView添加onClickListener时问题就开始了（我需要检测onClick，以便我可以显示带有图像描述的Toast）。但onClick似乎阻止了这一事件。我如何检测甩尾。

在这个论坛中已经完成了以下问题（以及其他一些问题）..

android - giving onTouch priority over onClick

Android onClick blocking onFling

但仍然无法确定解决方案。

以下是代码



public class MainActivity extends Activity{
    ImageView m_imageView;
    String[] m_imageNames = { "img1__", "img2__", "img2__"};
    int m_index = 0;
    Resources m_res;
    Drawable m_drawable;

    @Override
    public void onCreate(Bundle savedInstanceState) {
       super.onCreate(savedInstanceState);
       setContentView(R.layout.activity_main);
       Log.v("INFO", "Inside oncreate");

       m_imageView = (ImageView)findViewById(R.id.imageView1);
       m_res = getResources();
       int imageId = m_res.getIdentifier(m_imageNames[m_index], "drawable", getPackageName());
       Drawable drawable = m_res.getDrawable(imageId);
       m_imageView.setImageDrawable(drawable);

       m_imageView.setOnClickListener(new View.OnClickListener() {

       @Override
       public void onClick(View v) {
          Log.v("INFO", "Inside onClick");
       }
       });
  }

  @Override
  public boolean onTouchEvent(MotionEvent event) {
     Log.v("INFO", "onTouchEvent detected");
     return gestureDetector.onTouchEvent(event);
  }

  SimpleOnGestureListener simpleOnGestureListener
   = new SimpleOnGestureListener(){

    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;

    @Override
    public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX, 
        float velocityY) {
                //Fling code goes here
        }
   };

   GestureDetector gestureDetector = new GestureDetector(null, SimpleOnGestureListener);

}

public class MainActivity extends Activity{ ImageView m_imageView; String[] m_imageNames = { "img1__", "img2__", "img2__"}; int m_index = 0; Resources m_res; Drawable m_drawable; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); Log.v("INFO", "Inside oncreate"); m_imageView = (ImageView)findViewById(R.id.imageView1); m_res = getResources(); int imageId = m_res.getIdentifier(m_imageNames[m_index], "drawable", getPackageName()); Drawable drawable = m_res.getDrawable(imageId); m_imageView.setImageDrawable(drawable); m_imageView.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { Log.v("INFO", "Inside onClick"); } }); } @Override public boolean onTouchEvent(MotionEvent event) { Log.v("INFO", "onTouchEvent detected"); return gestureDetector.onTouchEvent(event); } SimpleOnGestureListener simpleOnGestureListener = new SimpleOnGestureListener(){ 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; @Override public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX, float velocityY) { //Fling code goes here } }; GestureDetector gestureDetector = new GestureDetector(null, SimpleOnGestureListener); }

Answer 1

这些方法通常有boolean个返回值，表示此事件已被使用，不应再传播。尝试更改返回值。

onClick阻止onFling

1 个答案: