Android/frameworks_base
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Make display density min/max scale an overridable resource.

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Fix: 205566509
Bug: 216792655
Test: manual
Change-Id: I70d1b88c78934c4b020c0cc21bacecdf17b2b220
This commit is contained in:
Pat Manning
2022-01-28 15:18:47 +00:00
parent 7315b7278c
commit 4e70e8ecfc
2 changed files with 15 additions and 13 deletions
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6
packages/SettingsLib/res/values/dimens.xml
View File

@@ -109,4 +109,10 @@
<dimen name="avatar_picker_icon_inset">25dp</dimen>
<!-- Minimum increment between density scales. -->
<fraction name="display_density_min_scale_interval">9%</fraction>
<!-- Maximum density scale. The actual scale used depends on the device. -->
<fraction name="display_density_max_scale">150%</fraction>
<!-- Minimum density scale. This is available on all devices. -->
<fraction name="display_density_min_scale">85%</fraction>
</resources>

22
packages/SettingsLib/src/com/android/settingslib/display/DisplayDensityUtils.java
View File

@@ -38,15 +38,6 @@ import java.util.Arrays;
public class DisplayDensityUtils {
private static final String LOG_TAG = "DisplayDensityUtils";
/** Minimum increment between density scales. */
private static final float MIN_SCALE_INTERVAL = 0.09f;
/** Minimum density scale. This is available on all devices. */
private static final float MIN_SCALE = 0.85f;
/** Maximum density scale. The actual scale used depends on the device. */
private static final float MAX_SCALE = 1.50f;
/** Summary used for "default" scale. */
public static final int SUMMARY_DEFAULT = R.string.screen_zoom_summary_default;
@@ -105,11 +96,16 @@ public class DisplayDensityUtils {
// Compute number of "larger" and "smaller" scales for this display.
final int minDimensionPx = Math.min(metrics.widthPixels, metrics.heightPixels);
final int maxDensity = DisplayMetrics.DENSITY_MEDIUM * minDimensionPx / MIN_DIMENSION_DP;
final float maxScale = Math.min(MAX_SCALE, maxDensity / (float) defaultDensity);
final float minScale = MIN_SCALE;
final int numLarger = (int) MathUtils.constrain((maxScale - 1) / MIN_SCALE_INTERVAL,
final float maxScaleDimen = context.getResources().getFraction(
R.fraction.display_density_max_scale, 1, 1);
final float maxScale = Math.min(maxScaleDimen, maxDensity / (float) defaultDensity);
final float minScale = context.getResources().getFraction(
R.fraction.display_density_min_scale, 1, 1);
final float minScaleInterval = context.getResources().getFraction(
R.fraction.display_density_min_scale_interval, 1, 1);
final int numLarger = (int) MathUtils.constrain((maxScale - 1) / minScaleInterval,
0, SUMMARIES_LARGER.length);
final int numSmaller = (int) MathUtils.constrain((1 - minScale) / MIN_SCALE_INTERVAL,
final int numSmaller = (int) MathUtils.constrain((1 - minScale) / minScaleInterval,
0, SUMMARIES_SMALLER.length);
String[] entries = new String[1 + numSmaller + numLarger];