@Override protected void onCreate(Bundle icicle) { super.onCreate(icicle); final LinearLayout testBed = new LinearLayout(this); testBed.setOrientation(LinearLayout.VERTICAL); testBed.setLayoutParams( new ViewGroup.LayoutParams( ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.WRAP_CONTENT)); final int cacheSize = ViewConfiguration.getMaximumDrawingCacheSize(); final Display display = getWindowManager().getDefaultDisplay(); final int screenWidth = display.getWidth(); final int screenHeight = display.getHeight(); final View tiny = new View(this); tiny.setId(R.id.a); tiny.setBackgroundColor(0xFFFF0000); tiny.setLayoutParams(new LinearLayout.LayoutParams(screenWidth, screenHeight)); final View large = new View(this); large.setId(R.id.b); large.setBackgroundColor(0xFF00FF00); // Compute the height of the view assuming a cache size based on ARGB8888 final int height = 2 * (cacheSize / 2) / screenWidth; large.setLayoutParams(new LinearLayout.LayoutParams(screenWidth, height)); final ScrollView scroller = new ScrollView(this); scroller.setLayoutParams( new ViewGroup.LayoutParams( ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT)); testBed.addView(tiny); testBed.addView(large); scroller.addView(testBed); setContentView(scroller); }
@Test public void methodsShouldReturnAndroidConstants() { Activity context = new Activity(); ViewConfiguration viewConfiguration = ViewConfiguration.get(context); assertEquals(10, ViewConfiguration.getScrollBarSize()); assertEquals(250, ViewConfiguration.getScrollBarFadeDuration()); assertEquals(300, ViewConfiguration.getScrollDefaultDelay()); assertEquals(12, ViewConfiguration.getFadingEdgeLength()); assertEquals(125, ViewConfiguration.getPressedStateDuration()); assertEquals(500, ViewConfiguration.getLongPressTimeout()); assertEquals(115, ViewConfiguration.getTapTimeout()); assertEquals(500, ViewConfiguration.getJumpTapTimeout()); assertEquals(300, ViewConfiguration.getDoubleTapTimeout()); assertEquals(12, ViewConfiguration.getEdgeSlop()); assertEquals(16, ViewConfiguration.getTouchSlop()); assertEquals(16, ViewConfiguration.getWindowTouchSlop()); assertEquals(50, ViewConfiguration.getMinimumFlingVelocity()); assertEquals(4000, ViewConfiguration.getMaximumFlingVelocity()); assertEquals(320 * 480 * 4, ViewConfiguration.getMaximumDrawingCacheSize()); assertEquals(3000, ViewConfiguration.getZoomControlsTimeout()); assertEquals(500, ViewConfiguration.getGlobalActionKeyTimeout()); assertEquals(0.015f, ViewConfiguration.getScrollFriction()); assertEquals(1f, context.getResources().getDisplayMetrics().density); assertEquals(10, viewConfiguration.getScaledScrollBarSize()); assertEquals(12, viewConfiguration.getScaledFadingEdgeLength()); assertEquals(12, viewConfiguration.getScaledEdgeSlop()); assertEquals(16, viewConfiguration.getScaledTouchSlop()); assertEquals(32, viewConfiguration.getScaledPagingTouchSlop()); assertEquals(100, viewConfiguration.getScaledDoubleTapSlop()); assertEquals(16, viewConfiguration.getScaledWindowTouchSlop()); assertEquals(50, viewConfiguration.getScaledMinimumFlingVelocity()); assertEquals(4000, viewConfiguration.getScaledMaximumFlingVelocity()); }