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Fix b/241872474 Battery usage page will crash when selecting the last hour chart bar, going to app detail page, and going back

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This bug is because we always use mHourlyChartIndex to construct
every view model in mHoulyViewModels. However, mHourlyChartIndex could
be got from saved instance. So mHourlyChartIndex may be out of bound in
some hourly view model which has not many hours data.

This fix removes the selectedIndex in BatteryChartViewModel constructor. Suppose the selectedIndex should be set everytime the view model is used.

Test: manual
Bug: 236101166
Bug: 241872474
Change-Id: I0bb5568ac33fcc23c406fe3af308b8d2706c5542
This commit is contained in:
Zaiyue Xue
2022-08-09 16:22:33 +08:00
parent 248895db72
commit 8d0030d874
4 changed files with 38 additions and 53 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
src/com/android/settings/fuelgauge/batteryusage/BatteryChartPreferenceControllerV2.java
View File

@@ -284,7 +284,6 @@ public class BatteryChartPreferenceControllerV2 extends AbstractPreferenceContro
generateTimestampDayOfWeekTexts(
mContext, batteryLevelData.getDailyBatteryLevels().getTimestamps(),
/* isAbbreviation= */ true),
mDailyChartIndex,
BatteryChartViewModel.AxisLabelPosition.CENTER_OF_TRAPEZOIDS);
mHourlyViewModels = new ArrayList<>();
for (BatteryLevelData.PeriodBatteryLevelData hourlyBatteryLevelsPerDay :
@@ -293,7 +292,6 @@ public class BatteryChartPreferenceControllerV2 extends AbstractPreferenceContro
hourlyBatteryLevelsPerDay.getLevels(),
generateTimestampHourTexts(
mContext, hourlyBatteryLevelsPerDay.getTimestamps()),
mHourlyChartIndex,
BatteryChartViewModel.AxisLabelPosition.BETWEEN_TRAPEZOIDS));
}
refreshUi();

34
src/com/android/settings/fuelgauge/batteryusage/BatteryChartViewModel.java
View File

@@ -41,22 +41,18 @@ class BatteryChartViewModel {
private final List<Integer> mLevels;
private final List<String> mTexts;
private final AxisLabelPosition mAxisLabelPosition;
private int mSelectedIndex;
private int mSelectedIndex = SELECTED_INDEX_ALL;
BatteryChartViewModel(
@NonNull List<Integer> levels, @NonNull List<String> texts, int selectedIndex,
@NonNull List<Integer> levels, @NonNull List<String> texts,
@NonNull AxisLabelPosition axisLabelPosition) {
Preconditions.checkArgument(
levels.size() == texts.size()
&& levels.size() >= MIN_LEVELS_DATA_SIZE
&& selectedIndex >= SELECTED_INDEX_ALL
&& selectedIndex < levels.size(),
String.format(Locale.ENGLISH, "Invalid BatteryChartViewModel"
+ " levels.size: %d\ntexts.size: %d\nselectedIndex: %d.",
levels.size(), texts.size(), selectedIndex));
levels.size() == texts.size() && levels.size() >= MIN_LEVELS_DATA_SIZE,
String.format(Locale.ENGLISH,
"Invalid BatteryChartViewModel levels.size: %d, texts.size: %d.",
levels.size(), texts.size()));
mLevels = levels;
mTexts = texts;
mSelectedIndex = selectedIndex;
mAxisLabelPosition = axisLabelPosition;
}
@@ -72,6 +68,10 @@ class BatteryChartViewModel {
return mTexts;
}
public AxisLabelPosition axisLabelPosition() {
return mAxisLabelPosition;
}
public int selectedIndex() {
return mSelectedIndex;
}
@@ -80,10 +80,6 @@ class BatteryChartViewModel {
mSelectedIndex = index;
}
public AxisLabelPosition axisLabelPosition() {
return mAxisLabelPosition;
}
@Override
public int hashCode() {
return Objects.hash(mLevels, mTexts, mSelectedIndex, mAxisLabelPosition);
@@ -99,15 +95,15 @@ class BatteryChartViewModel {
final BatteryChartViewModel batteryChartViewModel = (BatteryChartViewModel) other;
return Objects.equals(mLevels, batteryChartViewModel.mLevels)
&& Objects.equals(mTexts, batteryChartViewModel.mTexts)
&& mSelectedIndex == batteryChartViewModel.mSelectedIndex
&& mAxisLabelPosition == batteryChartViewModel.mAxisLabelPosition;
&& mAxisLabelPosition == batteryChartViewModel.mAxisLabelPosition
&& mSelectedIndex == batteryChartViewModel.mSelectedIndex;
}
@Override
public String toString() {
return String.format(Locale.ENGLISH,
"levels: %s\ntexts: %s\nselectedIndex: %d, axisLabelPosition: %s",
Objects.toString(mLevels), Objects.toString(mTexts), mSelectedIndex,
mAxisLabelPosition);
"levels: %s,\ntexts: %s,\naxisLabelPosition: %s, selectedIndex: %d",
Objects.toString(mLevels), Objects.toString(mTexts), mAxisLabelPosition,
mSelectedIndex);
}
}