@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());
}