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Commit ded99003 authored by Roozbeh Pournader's avatar Roozbeh Pournader
Browse files

Don't use framework strings for formatting file sizes 

Modify various formatters to avoid using framework strings for
formatting file sizes.

Also update README instructions for running unit tests.

Bug: 36994779
Test: adb shell am instrument -w -e class com.android.settings.utils.FileSizeFormatterTest com.android.settings.tests.unit/android.support.test.runner.AndroidJUnitRunner
Test: make -j RunSettingsRoboTests
Change-Id: I4035f26d29408b64389892a4a2379b4823f8ac96
parent e7c20d6f

res/layout/data_usage_bytes_editor.xml

+1 −2
Original line number Diff line number Diff line
@@ -37,7 +37,6 @@ 
        android:id="@+id/size_spinner"

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:layout_gravity="center_vertical"

        android:entries="@array/bytes_picker_sizes" />

        android:layout_gravity="center_vertical" />



</LinearLayout>

res/values/strings.xml

+0 −5
Original line number Diff line number Diff line
@@ -8328,11 +8328,6 @@ 
    <!-- Text for the setting on whether you can type text into notifications without unlocking the device. -->

    <string name="lockscreen_remote_input">If device is locked, prevent typing replies or other text in notifications</string>









    <string-array name="bytes_picker_sizes" translatable="false">









        <item>@*android:string/megabyteShort</item>









        <item>@*android:string/gigabyteShort</item>









    </string-array>

















    <!-- [CHAR LIMIT=30] Label for setting to control the default spell checker -->









    <string name="default_spell_checker">Default spell checker</string>

































src/com/android/settings/datausage/BillingCycleSettings.java



+14
−0






























Original line number
Diff line number
Diff line







@@ -21,6 +21,8 @@ import android.app.Fragment;







import android.content.Context;









import android.content.DialogInterface;









import android.content.res.Resources;









import android.icu.text.MeasureFormat;









import android.icu.util.MeasureUnit;









import android.net.NetworkPolicy;









import android.net.NetworkTemplate;









import android.os.Bundle;








@@ -31,6 +33,7 @@ import android.text.format.Time;







import android.util.Log;









import android.view.LayoutInflater;









import android.view.View;









import android.widget.ArrayAdapter;









import android.widget.EditText;









import android.widget.NumberPicker;









import android.widget.Spinner;








@@ -248,6 +251,17 @@ public class BillingCycleSettings extends DataUsageBase implements







                    : editor.getPolicyWarningBytes(template);









            final long limitDisabled = isLimit ? LIMIT_DISABLED : WARNING_DISABLED;



















            final MeasureFormat formatter = MeasureFormat.getInstance(









                    getContext().getResources().getConfiguration().locale,









                    MeasureFormat.FormatWidth.SHORT);









            final String[] unitNames = new String[] {









                formatter.getUnitDisplayName(MeasureUnit.MEGABYTE),









                formatter.getUnitDisplayName(MeasureUnit.GIGABYTE)









            };









            final ArrayAdapter<String> adapter = new ArrayAdapter<String>(









                    getContext(), android.R.layout.simple_spinner_item, unitNames);









            type.setAdapter(adapter);



















            if (bytes > 1.5f * GB_IN_BYTES) {









                final String bytesText = formatText(bytes / (float) GB_IN_BYTES);









                bytesPicker.setText(bytesText);
































src/com/android/settings/deviceinfo/StorageItemPreference.java



+2
−5






























Original line number
Diff line number
Diff line







@@ -18,6 +18,7 @@ package com.android.settings.deviceinfo;

















import android.content.Context;









import android.content.res.Resources;









import android.icu.util.MeasureUnit;









import android.support.v7.preference.Preference;









import android.support.v7.preference.PreferenceViewHolder;









import android.util.AttributeSet;








@@ -51,7 +52,7 @@ public class StorageItemPreference extends Preference {







                FileSizeFormatter.formatFileSize(









                        getContext(),









                        size,









                        getGigabyteSuffix(getContext().getResources()),









                        MeasureUnit.GIGABYTE,









                        FileSizeFormatter.GIGABYTE_IN_BYTES));









        if (total == 0) {









            mProgressPercent = 0;








@@ -75,8 +76,4 @@ public class StorageItemPreference extends Preference {







        updateProgressBar();









        super.onBindViewHolder(view);









    }



















    private static int getGigabyteSuffix(Resources res) {









        return res.getIdentifier("gigabyteShort", "string", "android");









    }









}
























src/com/android/settings/utils/FileSizeFormatter.java



+80
−23






























Original line number
Diff line number
Diff line







@@ -16,11 +16,22 @@

















package com.android.settings.utils;



















import android.annotation.NonNull;









import android.annotation.Nullable;









import android.content.Context;









import android.content.res.Resources;









import android.icu.text.DecimalFormat;









import android.icu.text.MeasureFormat;









import android.icu.text.NumberFormat;









import android.icu.util.Measure;









import android.icu.util.MeasureUnit;









import android.text.BidiFormatter;









import android.text.TextUtils;









import android.text.format.Formatter;









import android.view.View;



















import java.math.BigDecimal;









import java.util.Locale;



















/**









 * Utility class to aid in formatting file sizes always with the same unit. This is modified from








@@ -31,6 +42,61 @@ public final class FileSizeFormatter {







    public static final long MEGABYTE_IN_BYTES = KILOBYTE_IN_BYTES * 1000;









    public static final long GIGABYTE_IN_BYTES = MEGABYTE_IN_BYTES * 1000;



















    private static class RoundedBytesResult {









        public final float value;









        public final MeasureUnit units;









        public final int fractionDigits;









        public final long roundedBytes;



















        public RoundedBytesResult(









                float value, MeasureUnit units, int fractionDigits, long roundedBytes) {









            this.value = value;









            this.units = units;









            this.fractionDigits = fractionDigits;









            this.roundedBytes = roundedBytes;









        }









    }



















    private static Locale localeFromContext(@NonNull Context context) {









        return context.getResources().getConfiguration().locale;









    }



















    private static String bidiWrap(@NonNull Context context, String source) {









        final Locale locale = localeFromContext(context);









        if (TextUtils.getLayoutDirectionFromLocale(locale) == View.LAYOUT_DIRECTION_RTL) {









            return BidiFormatter.getInstance(true /* RTL*/).unicodeWrap(source);









        } else {









            return source;









        }









    }



















    private static NumberFormat getNumberFormatter(Locale locale, int fractionDigits) {









        final NumberFormat numberFormatter = NumberFormat.getInstance(locale);









        numberFormatter.setMinimumFractionDigits(fractionDigits);









        numberFormatter.setMaximumFractionDigits(fractionDigits);









        numberFormatter.setGroupingUsed(false);









        if (numberFormatter instanceof DecimalFormat) {









            // We do this only for DecimalFormat, since in the general NumberFormat case, calling









            // setRoundingMode may throw an exception.









            numberFormatter.setRoundingMode(BigDecimal.ROUND_HALF_UP);









        }









        return numberFormatter;









    }



















    private static String formatMeasureShort(Locale locale, NumberFormat numberFormatter,









            float value, MeasureUnit units) {









        final MeasureFormat measureFormatter = MeasureFormat.getInstance(









                locale, MeasureFormat.FormatWidth.SHORT, numberFormatter);









        return measureFormatter.format(new Measure(value, units));









    }



















    private static String formatRoundedBytesResult(









            @NonNull Context context, @NonNull RoundedBytesResult input) {









        final Locale locale = localeFromContext(context);









        final NumberFormat numberFormatter = getNumberFormatter(locale, input.fractionDigits);









        return formatMeasureShort(locale, numberFormatter, input.value, input.units);









    }



















    /**









     * Formats a content size to be in the form of bytes, kilobytes, megabytes, etc.









     *








@@ -47,23 +113,17 @@ public final class FileSizeFormatter {







     *









     * @param context Context to use to load the localized units









     * @param sizeBytes size value to be formatted, in bytes









     * @param suffix String id for the unit suffix.









     * @param mult Amount of bytes in the unit. * @return formatted string with the number









     * @param unit The unit used for formatting.









     * @param mult Amount of bytes in the unit.









     * @return formatted string with the number









     */









    public static String formatFileSize(









            @Nullable Context context, long sizeBytes, int suffix, long mult) {









            @Nullable Context context, long sizeBytes, MeasureUnit unit, long mult) {









        if (context == null) {









            return "";









        }









        final Formatter.BytesResult res =









                formatBytes(context.getResources(), sizeBytes, suffix, mult);









        return BidiFormatter.getInstance()









                .unicodeWrap(context.getString(getFileSizeSuffix(context), res.value, res.units));









    }



















    private static int getFileSizeSuffix(Context context) {









        final Resources res = context.getResources();









        return res.getIdentifier("fileSizeSuffix", "string", "android");









        final RoundedBytesResult res = formatBytes(sizeBytes, unit, mult);









        return bidiWrap(context, formatRoundedBytesResult(context, res));









    }



















    /**








@@ -76,8 +136,8 @@ public final class FileSizeFormatter {







     * @param suffix String id for the unit suffix.









     * @param mult Amount of bytes in the unit.









     */









    private static Formatter.BytesResult formatBytes(









            Resources res, long sizeBytes, int suffix, long mult) {









    private static RoundedBytesResult formatBytes(









            long sizeBytes, MeasureUnit unit, long mult) {









        final boolean isNegative = (sizeBytes < 0);









        float result = isNegative ? -sizeBytes : sizeBytes;









        result = result / mult;








@@ -85,32 +145,29 @@ public final class FileSizeFormatter {







        // compute the rounded value. String.format("%f", 0.1) might not return "0.1" due to









        // floating point errors.









        final int roundFactor;









        final String roundFormat;









        final int roundDigits;









        if (mult == 1) {









            roundFactor = 1;









            roundFormat = "%.0f";









            roundDigits = 0;









        } else if (result < 1) {









            roundFactor = 100;









            roundFormat = "%.2f";









            roundDigits = 2;









        } else if (result < 10) {









            roundFactor = 10;









            roundFormat = "%.1f";









            roundDigits = 1;









        } else { // 10 <= result < 100









            roundFactor = 1;









            roundFormat = "%.0f";









            roundDigits = 0;









        }



















        if (isNegative) {









            result = -result;









        }









        final String roundedString = String.format(roundFormat, result);



















        // Note this might overflow if abs(result) >= Long.MAX_VALUE / 100, but that's like 80PB so









        // it's okay (for now)...









        final long roundedBytes = (((long) Math.round(result * roundFactor)) * mult / roundFactor);



















        final String units = res.getString(suffix);



















        return new Formatter.BytesResult(roundedString, units, roundedBytes);









        return new RoundedBytesResult(result, unit, roundDigits, roundedBytes);









    }









}