| /* |
| * Copyright (C) 2007 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package android.widget.scroll; |
| |
| import android.test.ActivityInstrumentationTestCase; |
| import android.view.KeyEvent; |
| import android.widget.Button; |
| import android.widget.LinearLayout; |
| import android.widget.ScrollView; |
| |
| import androidx.test.filters.LargeTest; |
| import androidx.test.filters.MediumTest; |
| import androidx.test.filters.Suppress; |
| |
| public class ScrollViewButtonsAndLabelsTest |
| extends ActivityInstrumentationTestCase<ScrollViewButtonsAndLabels> { |
| |
| private ScrollView mScrollView; |
| private LinearLayout mLinearLayout; |
| private int mScreenBottom; |
| private int mScreenTop; |
| |
| public ScrollViewButtonsAndLabelsTest() { |
| super("com.android.frameworks.coretests", |
| ScrollViewButtonsAndLabels.class); |
| } |
| |
| @Override |
| public void setUp() throws Exception { |
| super.setUp(); |
| mScrollView = getActivity().getScrollView(); |
| mLinearLayout = getActivity().getLinearLayout(); |
| |
| int origin[] = {0, 0}; |
| mScrollView.getLocationOnScreen(origin); |
| mScreenTop = origin[1]; |
| mScreenBottom = origin[1] + mScrollView.getHeight(); |
| } |
| |
| @MediumTest |
| @Suppress // Failing. |
| public void testPreconditions() { |
| assertTrue("vertical fading edge width needs to be non-zero for this " |
| + "test to be worth anything", |
| mScrollView.getVerticalFadingEdgeLength() > 0); |
| } |
| |
| // moving down to something off screen should move the element |
| // onto the screen just above the vertical fading edge |
| @LargeTest |
| public void testArrowScrollDownOffScreenVerticalFadingEdge() { |
| |
| int offScreenIndex = findFirstButtonOffScreenTop2Bottom(); |
| Button firstButtonOffScreen = getActivity().getButton(offScreenIndex); |
| |
| getActivity().runOnUiThread(() -> getActivity().getButton(0).requestFocus()); |
| getInstrumentation().waitForIdleSync(); |
| |
| for (int i = 0; i < offScreenIndex; i++) { |
| sendKeys(KeyEvent.KEYCODE_DPAD_DOWN); |
| } |
| getInstrumentation().waitForIdleSync(); |
| assertTrue(firstButtonOffScreen.hasFocus()); |
| |
| assertTrue("the button we've moved to off screen must not be the last " |
| + "button in the scroll view for this test to work (since we " |
| + "are expecting the fading edge to be there).", |
| offScreenIndex < getActivity().getNumButtons()); |
| |
| // now we are at the first button off screen |
| int buttonLoc[] = {0, 0}; |
| firstButtonOffScreen.getLocationOnScreen(buttonLoc); |
| int buttonBottom = buttonLoc[1] + firstButtonOffScreen.getHeight(); |
| |
| int verticalFadingEdgeLength = mScrollView |
| .getVerticalFadingEdgeLength(); |
| assertEquals("bottom of button should be verticalFadingEdgeLength " |
| + "above the bottom of the screen", |
| buttonBottom, mScreenBottom - verticalFadingEdgeLength); |
| } |
| |
| // there should be no offset for vertical fading edge |
| // if the item is the last one on screen |
| @LargeTest |
| public void testArrowScrollDownToBottomElementOnScreen() { |
| |
| int numGroups = getActivity().getNumButtons(); |
| Button lastButton = getActivity().getButton(numGroups - 1); |
| |
| assertEquals("button needs to be at the very bottom of the layout for " |
| + "this test to work", |
| mLinearLayout.getHeight(), lastButton.getBottom()); |
| |
| // move down to last button |
| for (int i = 0; i < numGroups; i++) { |
| sendKeys(KeyEvent.KEYCODE_DPAD_DOWN); |
| } |
| getInstrumentation().waitForIdleSync(); |
| assertTrue("last button should have focus", lastButton.hasFocus()); |
| |
| int buttonLoc[] = {0, 0}; |
| lastButton.getLocationOnScreen(buttonLoc); |
| int buttonBottom = buttonLoc[1] + lastButton.getHeight(); |
| assertEquals("button should be at very bottom of screen", |
| mScreenBottom, buttonBottom); |
| } |
| |
| @LargeTest |
| public void testArrowScrollUpOffScreenVerticalFadingEdge() { |
| // get to bottom button |
| int numGroups = goToBottomButton(); |
| |
| // go up to first off screen button |
| int offScreenIndex = findFirstButtonOffScreenBottom2Top(); |
| Button offScreenButton = getActivity().getButton(offScreenIndex); |
| int clicksToOffScreenIndex = numGroups - offScreenIndex - 1; |
| for (int i = 0; i < clicksToOffScreenIndex; i++) { |
| sendKeys(KeyEvent.KEYCODE_DPAD_UP); |
| } |
| getInstrumentation().waitForIdleSync(); |
| assertTrue("we want to be at offScreenButton", offScreenButton.hasFocus()); |
| |
| // top should take into account fading edge |
| int buttonLoc[] = {0, 0}; |
| offScreenButton.getLocationOnScreen(buttonLoc); |
| assertEquals("top should take into account fading edge", |
| mScreenTop + mScrollView.getVerticalFadingEdgeLength(), buttonLoc[1]); |
| } |
| |
| |
| @LargeTest |
| public void testArrowScrollUpToTopElementOnScreen() { |
| // get to bottom button |
| int numButtons = goToBottomButton(); |
| |
| // go back to the top |
| for (int i = 0; i < numButtons; i++) { |
| sendKeys(KeyEvent.KEYCODE_DPAD_UP); |
| } |
| getInstrumentation().waitForIdleSync(); |
| |
| Button topButton = getActivity().getButton(0); |
| assertTrue("should be back at top button", topButton.hasFocus()); |
| |
| |
| int buttonLoc[] = {0, 0}; |
| topButton.getLocationOnScreen(buttonLoc); |
| assertEquals("top of top button should be at top of screen; no need to take" |
| + " into account vertical fading edge.", |
| mScreenTop, buttonLoc[1]); |
| } |
| |
| private int goToBottomButton() { |
| int numButtons = getActivity().getNumButtons(); |
| Button lastButton = getActivity().getButton(numButtons - 1); |
| |
| for (int i = 0; i < numButtons; i++) { |
| sendKeys(KeyEvent.KEYCODE_DPAD_DOWN); |
| } |
| getInstrumentation().waitForIdleSync(); |
| assertTrue("we want to be at the last button", lastButton.hasFocus()); |
| return numButtons; |
| } |
| |
| // search from top to bottom for the first button off screen |
| private int findFirstButtonOffScreenTop2Bottom() { |
| int origin[] = {0, 0}; |
| mScrollView.getLocationOnScreen(origin); |
| int screenHeight = mScrollView.getHeight(); |
| |
| for (int i = 0; i < getActivity().getNumButtons(); i++) { |
| |
| int buttonLoc[] = {0, 0}; |
| Button button = getActivity().getButton(i); |
| button.getLocationOnScreen(buttonLoc); |
| |
| if (buttonLoc[1] - origin[1] > screenHeight) { |
| return i; |
| } |
| } |
| fail("couldn't find first button off screen"); |
| return -1; // this won't execute, but the compiler needs it |
| } |
| |
| private int findFirstButtonOffScreenBottom2Top() { |
| int origin[] = {0, 0}; |
| mScrollView.getLocationOnScreen(origin); |
| |
| for (int i = getActivity().getNumButtons() - 1; i >= 0; i--) { |
| |
| int buttonLoc[] = {0, 0}; |
| Button button = getActivity().getButton(i); |
| button.getLocationOnScreen(buttonLoc); |
| |
| if (buttonLoc[1] < 0) { |
| return i; |
| } |
| } |
| fail("couldn't find first button off screen"); |
| return -1; // this won't execute, but the compiler needs it |
| } |
| |
| } |