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Code Pull Requests 1 Activity

app: [Android] Set high refresh rate on startup

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Some devices with high refresh rates limit SurfaceView apps to 60hz
and need a specific API call to set it back. Same approach is used by
https://github.com/ajinasokan/flutter_displaymode. The extra work is
skipped on the devices that don't need it.

Signed-off-by: Ilia Demianenko <ilia.demianenko@gmail.com>
This commit is contained in:
Ilia Demianenko
2023-04-17 20:47:53 -07:00
committed by Elias Naur
parent 816bda7ac7
commit bcb123a05e
1 changed files with 56 additions and 0 deletions
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app/GioView.java
+56
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@@ -26,6 +26,7 @@ import android.text.SpannableStringBuilder;
import android.util.AttributeSet;
import android.util.TypedValue;
import android.view.Choreographer;
import android.view.Display;
import android.view.KeyCharacterMap;
import android.view.KeyEvent;
import android.view.MotionEvent;
@@ -105,6 +106,8 @@ public final class GioView extends SurfaceView implements Choreographer.FrameCal
scrollYScale = px;
}
setHighRefreshRate();
accessManager = (AccessibilityManager)context.getSystemService(Context.ACCESSIBILITY_SERVICE);
imm = (InputMethodManager)context.getSystemService(Context.INPUT_METHOD_SERVICE);
nhandle = onCreateView(this);
@@ -255,6 +258,59 @@ public final class GioView extends SurfaceView implements Choreographer.FrameCal
this.setBarColor(Bar.NAVIGATION, color, luminance);
}
private void setHighRefreshRate() {
Context context = getContext();
Display display = context.getDisplay();
Display.Mode[] supportedModes = display.getSupportedModes();
if (supportedModes.length <= 1) {
// Nothing to set
return;
}
Display.Mode currentMode = display.getMode();
int currentWidth = currentMode.getPhysicalWidth();
int currentHeight = currentMode.getPhysicalHeight();
float minRefreshRate = -1;
float maxRefreshRate = -1;
float bestRefreshRate = -1;
int bestModeId = -1;
for (Display.Mode mode : supportedModes) {
float refreshRate = mode.getRefreshRate();
float width = mode.getPhysicalWidth();
float height = mode.getPhysicalHeight();
if (minRefreshRate == -1 || refreshRate < minRefreshRate) {
minRefreshRate = refreshRate;
}
if (maxRefreshRate == -1 || refreshRate > maxRefreshRate) {
maxRefreshRate = refreshRate;
}
boolean refreshRateIsBetter = bestRefreshRate == -1 || refreshRate > bestRefreshRate;
if (width == currentWidth && height == currentHeight && refreshRateIsBetter) {
int modeId = mode.getModeId();
bestRefreshRate = refreshRate;
bestModeId = modeId;
}
}
if (bestModeId == -1) {
// Not expecting this but just in case
return;
}
if (minRefreshRate == maxRefreshRate) {
// Can't improve the refresh rate
return;
}
Window window = ((Activity) context).getWindow();
WindowManager.LayoutParams layoutParams = window.getAttributes();
layoutParams.preferredDisplayModeId = bestModeId;
window.setAttributes(layoutParams);
}
@Override protected boolean dispatchHoverEvent(MotionEvent event) {
if (!accessManager.isTouchExplorationEnabled()) {
return super.dispatchHoverEvent(event);