espresso Seekbar

 1 package test.utils;
 2 
 3 import android.support.test.espresso.PerformException;
 4 import android.support.test.espresso.ViewAction;
 5 import android.support.test.espresso.action.CoordinatesProvider;
 6 import android.support.test.espresso.action.GeneralSwipeAction;
 7 import android.support.test.espresso.action.Press;
 8 import android.support.test.espresso.action.Swipe;
 9 import android.support.test.espresso.util.HumanReadables;
10 import android.view.View;
11 import android.widget.SeekBar;
12 
13 import static android.support.test.espresso.action.ViewActions.actionWithAssertions;
14 
15 /**
16  * Created by qiantao on 17-10-19.
17  */
18 
19 public class SeekBarActions {
20     public static ViewAction scrubSeekBarAction(int progress) {
21         return actionWithAssertions(new GeneralSwipeAction(
22                 Swipe.SLOW,
23                 new SeekBarThumbCoordinatesProvider(-1),
24                 new SeekBarThumbCoordinatesProvider(progress),
25                 Press.PINPOINT));
26     }
27 
28     /**
29      * -1 表示起始位置
30      */
31     private static class SeekBarThumbCoordinatesProvider implements CoordinatesProvider {
32         int mProgress;
33 
34         public SeekBarThumbCoordinatesProvider(int progress) {
35             mProgress = progress;
36         }
37 
38         private static float[] getVisibleLeftTop(View view) {
39             final int[] xy = new int[2];
40             view.getLocationOnScreen(xy);
41             return new float[]{(float) xy[0], (float) xy[1]};
42         }
43 
44         @Override
45         public float[] calculateCoordinates(View view) {
46             if (!(view instanceof SeekBar)) {
47                 throw new PerformException.Builder()
48                         .withViewDescription(HumanReadables.describe(view))
49                         .withCause(new RuntimeException(String.format("SeekBar expected"))).build();
50             }
51             SeekBar seekBar = (SeekBar) view;
52             int width = seekBar.getWidth() - seekBar.getPaddingLeft() - seekBar.getPaddingRight();
53             LogUtils.i("seekBar.getProgress():" + seekBar.getProgress());
54             double progress = mProgress == -1 ? seekBar.getProgress() : (mProgress * seekBar.getMax() / 100);
55             int xPosition = (int) (seekBar.getPaddingLeft() + (width * progress / seekBar.getMax()));
56             float[] xy = getVisibleLeftTop(seekBar);
57             return new float[]{xy[0] + xPosition, xy[1]};
58         }
59     }
60 }

检查Mtacher

    public static Matcher<View> withSeekBarProgress(final int expectedProgress) {
        return new BoundedMatcher<View, SeekBar>(SeekBar.class) {
            @Override
            public void describeTo(Description description) {
                description.appendText("expected: ");
                description.appendText("" + expectedProgress);
            }

            @Override
            public boolean matchesSafely(SeekBar seekBar) {
                LogUtils.i("seekBar.getProgress():" + seekBar.getProgress());
                return seekBar.getProgress()*100/seekBar.getMax() == expectedProgress;
            }
        };
    }

用法

for (int i = 0; i <= 100; i += 50) {    
　　onView(seekBarViewMatcher).perform(SeekBarActions.scrubSeekBarAction(i));    
　　onView(seekBarViewMatcher).check(matches(withSeekBarProgress(i)));
}