MultiTouching - 觸摸按鈕Horizo​​ntalScrollView - Android電子

Question

我儘量讓與multitouching的應用程序，我用這個代碼：

Multitouchng code

它的工作原理，但我有問題，因爲在我的應用我」我得到了Horizo​​ntalScrollView（HSV），當我按下HSV起始按鈕時，我在「downTouchedViewsIndex」中有按鈕Id（View.getId()），但是當我滾動我的HSV並按下任何按鈕時，我只有佈局的Id - 沒有任何按鈕。

我觸摸代碼：

package com.lacrima.pianoo; 

public class MainActivity extends Activity implements SeekBar.OnSeekBarChangeListener, OnTouchListener { 

    static private String TAG = "MainActivity"; 

    public View parent; 

    private final ArrayList[] recentTouchedViewsIndex = new ArrayList[10]; 

    private final ArrayList[] downTouchedViewsIndex = new ArrayList[10]; 

    private final ArrayList<View> moveOutsideEnabledViews = new ArrayList<View>(); 

    private List<Integer> list = new ArrayList<Integer>(); 

    private final int mTouchSlop = 24; 

    AssetFileDescriptor des; // deskryptor do opisu wczytywanego pliku muzycznego (miejsce gdzie jesta zapisany dlugość i inne takie) 
    MediaPlayer[] mp = new MediaPlayer[36];// = new MediaPlayer(); 

    //Pierwsza oktawa 
    Button button1, button2, button3, button4, button5, button6, button7; 
    Button button1_5, button2_5, button4_5, button5_5, button6_5; 
    //Druga oktawa 
    Button button8, button9, button10, button11, button12, button13, button14; 
    Button button8_5, button9_5, button11_5, button12_5, button13_5; 
    //Trzecia oktawa 
    Button button15, button16, button17, button18, button19, button20, button21; 
    Button button15_5, button16_5, button18_5, button19_5, button20_5; 

    SamplePlayer sound; 
    Integer[] soundIDs = new Integer[36]; 

    private boolean[] whitePlays = new boolean[21]; 
    private boolean[] blackPlays = new boolean[15]; 

    private View[] whiteViews = new View[21]; 
    private View[] blackViews = new View[15]; 

    private int lastButton; 

    @Override 
    protected void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 

     requestWindowFeature(Window.FEATURE_NO_TITLE); 
     getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN); 

     setContentView(R.layout.activity_main); 

     setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE); //Ustawienie ekranu horuzontalnie na sztywno 
     this.setVolumeControlStream(AudioManager.STREAM_MUSIC); 

     parent = findViewById(android.R.id.content).getRootView(); 
     parent.setOnTouchListener(this); 


     SeekBar seek = (SeekBar) findViewById(R.id.seekBar); 
     final LockedHorizontalScrollView hsv = (LockedHorizontalScrollView)findViewById(R.id.hsv); 

     seek.setMax(948); 
     seek.setProgress(474); 
     seek.setOnSeekBarChangeListener(this); 
     hsv.post(new Runnable() { 
      @Override 
      public void run() { 
       hsv.scrollTo(474, 0); 
      } 
     }); 

     sound = new SamplePlayer(this); 

     falsePlays(); 
     buttonListeners(); 
    } 


    @Override 
    public boolean onCreateOptionsMenu(Menu menu) { 
     getMenuInflater().inflate(R.menu.activity_main, menu); 
     return true; 
    } 

    @Override 
    public void onProgressChanged(SeekBar seekBar, int progress, boolean fromTouch) { 

     LockedHorizontalScrollView hsv = (LockedHorizontalScrollView)findViewById(R.id.hsv); 
     hsv.scrollTo(progress, 0); 
    } 

    @Override 
    public void onStartTrackingTouch(SeekBar seekBar) { 
     //uruchamiane w momencie kliknięcia na suwak 
     Log.d(TAG, "Tracking on"); 
    } 

    @Override 
    public void onStopTrackingTouch(SeekBar seekBar) { 
     //uruchamiane w momencie odkliknięcia suwaka 
     Log.d(TAG, "Tracking off"); 

    } 


    @Override 
    protected void onDestroy() { 
     sound.release(); 
     super.onDestroy(); 
    } 


    @Override 
    public boolean onTouch(View v, MotionEvent event) { 


     // index of the pointer which starts this Event 
     final int actionPointerIndex = event.getActionIndex(); 

     // resolve the action as a basic type (up, down or move) 
     int actionResolved = event.getAction() & MotionEvent.ACTION_MASK; 
     if (actionResolved < 7 && actionResolved > 4) { 
      actionResolved = actionResolved - 5; 
     } 

     if (actionResolved == MotionEvent.ACTION_DOWN || actionResolved == MotionEvent.ACTION_UP 
       || actionResolved == MotionEvent.ACTION_CANCEL) { 
      dealEvent(actionPointerIndex, event, v, actionResolved); 
     } 

     return true; 
    } 


    private void dealEvent(final int actionPointerIndex, final MotionEvent event, final View eventView, 
      final int actionResolved) { 

     int rawX, rawY; 
     final int location[] = { 0, 0 }; 
     eventView.getLocationOnScreen(location); 
     // Log.v("tag", location + ""); 
     rawX = (int) event.getX(actionPointerIndex) + location[0]; 
     rawY = (int) event.getY(actionPointerIndex) + location[1]; 

     final int actionPointerID = event.getPointerId(actionPointerIndex); 
     ArrayList<View> hoverViews = getTouchedViews(rawX, rawY); 

     if (actionResolved == MotionEvent.ACTION_DOWN) { 
      downTouchedViewsIndex[actionPointerID] = (ArrayList<View>) hoverViews.clone(); 

      lastButton = hoverViews.get(k-1).getId(); 

     } 

     if(actionResolved == MotionEvent.ACTION_UP){ 
      int k = hoverViews.size(); 
      Log.d("klop", "Odklijniecie: " + hoverViews.get(k-1).getId()); 
      lastButton = eventView.getId(); 
     } 
     // deletes all views which where not clicked on ActionDown 
     if (downTouchedViewsIndex[actionPointerID] != null) { 
      final ArrayList<View> tempViews = (ArrayList<View>) hoverViews.clone(); 
      tempViews.removeAll(downTouchedViewsIndex[actionPointerID]); 
      hoverViews.removeAll(tempViews); 
     } 

     if (recentTouchedViewsIndex[actionPointerID] != null) { 
      final ArrayList<View> recentTouchedViews = recentTouchedViewsIndex[actionPointerID]; 

      final ArrayList<View> shouldTouchViews = (ArrayList<View>) hoverViews.clone(); 
      if (!shouldTouchViews.containsAll(recentTouchedViews)) { 
       shouldTouchViews.removeAll(recentTouchedViews); 
       shouldTouchViews.addAll(recentTouchedViews); 

       final ArrayList<View> outsideTouchedViews = (ArrayList<View>) shouldTouchViews.clone(); 
       outsideTouchedViews.removeAll(hoverViews); 
      } 

      recentTouchedViewsIndex[actionPointerID] = hoverViews; 
      hoverViews = shouldTouchViews; 
     } else { 
      recentTouchedViewsIndex[actionPointerID] = hoverViews; 
     } 

     if (actionResolved == MotionEvent.ACTION_UP) { 
      recentTouchedViewsIndex[actionPointerID] = null; 
      downTouchedViewsIndex[actionPointerID] = null; 
     } 
     for (final View view : hoverViews) { 
      int x, y; 
      view.getLocationOnScreen(location); 
      x = rawX - location[0]; 
      y = rawY - location[1]; 

      // View does not recognize that the Pointer is 
      // outside if the Pointer is not far away (>mTouchSlop) 
      if (recentTouchedViewsIndex[actionPointerID] != null) { 
       if (pointInView(x, y, mTouchSlop, view.getWidth(), view.getHeight())) { 


        if (!recentTouchedViewsIndex[actionPointerID].contains(view)) { 
         recentTouchedViewsIndex[actionPointerID].add(view); 
        } 
       } else if (moveOutsideEnabledViews.contains(view)) { 
        Log.v("tag", "outside but gets event"); 
        recentTouchedViewsIndex[actionPointerID].add(view); 
       } 
      } 
      final MotionEvent me = MotionEvent.obtain(event.getDownTime(), event.getEventTime(), actionResolved, x, y, 
        event.getPressure(actionPointerIndex), event.getPressure(actionPointerIndex), event.getMetaState(), 
        event.getXPrecision(), event.getYPrecision(), event.getDeviceId(), event.getEdgeFlags()); 
      me.setLocation(x, y); 

      if (!me.equals(event)) { 
       // deals the Event 
       view.onTouchEvent(me); 
      } 

      // debug 
      if (actionResolved == MotionEvent.ACTION_MOVE) { 
       Log.v("tag", "#" + actionPointerIndex + " Rawx:" + rawX + " rawy:" + rawY + " x:" + x + " y:" + y + " " 
         + view.toString()); 
      } 
     } 
    } 

    private ArrayList<View> getTouchedViews(final int x, final int y) { 

     final ArrayList<View> touchedViews = new ArrayList<View>(); 
     final ArrayList<View> possibleViews = new ArrayList<View>(); 

     if (parent instanceof ViewGroup) { 
      possibleViews.add(parent); 
      for (int i = 0; i < possibleViews.size(); i++) { 
       final View view = possibleViews.get(i); 

       final int location[] = { 0, 0 }; 
       view.getLocationOnScreen(location); 

       if (((view.getHeight() + location[1] >= y) & (view.getWidth() + location[0] >= x) & (view.getLeft() <= x) & (view 
         .getTop() <= y)) || view instanceof FrameLayout) { 
        touchedViews.add(view); 
        possibleViews.addAll(getChildViews(view)); 
       } 

      } 
     } 

     return touchedViews; 

    } 

    private ArrayList<View> getChildViews(final View view) { 
     final ArrayList<View> views = new ArrayList<View>(); 
     if (view instanceof ViewGroup) { 
      final ViewGroup v = ((ViewGroup) view); 
      if (v.getChildCount() > 0) { 
       for (int i = 0; i < v.getChildCount(); i++) { 
        views.add(v.getChildAt(i)); 
       } 

      } 
     } 
     return views; 
    } 


    private boolean pointInView(final float localX, final float localY, final float slop, final float width, 
      final float height) { 
     return localX >= -slop && localY >= -slop && localX < ((width) + slop) && localY < ((height) + slop); 
    } 

    public void addMoveOutsideEnabledViews(final View view) { 
     moveOutsideEnabledViews.add(view); 
    } 

和XML文件：

<?xml version="1.0" encoding="utf-8"?> 
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" 
    android:layout_width="fill_parent" 
    android:layout_height="fill_parent" 
    android:background="#0A0A0A" 
    android:orientation="vertical" > 

    <SeekBar 
     android:id="@+id/seekBar" 
     android:layout_width="fill_parent" 
     android:layout_height="53dp" /> 

    <com.lacrima.pianoo.LockedHorizontalScrollView 
     android:id="@+id/hsv" 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     android:scrollbars="none" > 

     <RelativeLayout 
      android:layout_width="fill_parent" 
      android:layout_height="fill_parent" 
      android:orientation="horizontal" > 

      <Button... 

</RelativeLayout> 
    </com.lacrima.pianoo.LockedHorizontalScrollView> 

</LinearLayout> 

我的代碼是很長，所以我puttet它的Dropbox（整個項目），你可以看到發生了什麼

Project

Answer 1

我解決了我的問題。

您不需要在觸摸下查找按鈕。你必須取得你的觸摸位置的X和Y，並從scrollView中添加你的值。然後，你必須檢查，有任何按鍵，啓動方法：

rawX = (int) event.getX(actionPointerIndex) + location[0]; 
rawY = (int) event.getY(actionPointerIndex) + location[1]; 

    scrollX = seek.getProgress() + rawX; 

    if (actionResolved == MotionEvent.ACTION_DOWN) { 
     findButton(scrollX, rawY, true); 
    } 

    if(actionResolved == MotionEvent.ACTION_UP || actionResolved == MotionEvent.ACTION_CANCEL) { 
     findButton(scrollX, rawY, false); 
    } 

Answer 2

我想如果你移動滾動條你失去焦點第一次點擊按鈕。兩個原因： - Scrollview覆蓋onTouchEvent並返回true。 - >觸摸消耗 - 您失去了第一個按鈕的焦點。嘗試使用addMoveOutsideEnabledViews Methode添加按鈕，看看會發生什麼。