aixan/lawnchair
1
0
Fork 0
mirror of https://github.com/LawnchairLauncher/lawnchair.git synced 2026-02-28 15:56:49 +00:00
Code Issues Packages Projects Releases Wiki Activity

Handling configuration changes at runtime instead of killing the process

Browse Source 
Change-Id: I0c7f7e58ddb690f371c257b6142a4e918e9acb7f
This commit is contained in:
Sunny Goyal
2018-10-12 11:42:33 -07:00
parent 6e11a2d9f2
commit 87dc48b7bf
7 changed files with 168 additions and 48 deletions
Download Patch File Download Diff File Expand all files Collapse all files

71
src/com/android/launcher3/InvariantDeviceProfile.java
View File

@@ -16,6 +16,8 @@
package com.android.launcher3;
import static com.android.launcher3.config.FeatureFlags.APPLY_CONFIG_AT_RUNTIME;
import android.annotation.TargetApi;
import android.content.Context;
import android.content.res.Configuration;
@@ -23,6 +25,7 @@ import android.content.res.TypedArray;
import android.content.res.XmlResourceParser;
import android.graphics.Point;
import android.util.DisplayMetrics;
import android.util.Log;
import android.util.Xml;
import android.view.Display;
import android.view.WindowManager;
@@ -45,13 +48,13 @@ public class InvariantDeviceProfile {
// We do not need any synchronization for this variable as its only written on UI thread.
public static final MainThreadInitializedObject<InvariantDeviceProfile> INSTANCE =
new MainThreadInitializedObject<>((c) -> {
new ConfigMonitor(c).register();
return new InvariantDeviceProfile(c);
});
new MainThreadInitializedObject<>(InvariantDeviceProfile::new);
private static final float ICON_SIZE_DEFINED_IN_APP_DP = 48;
public static final int CHANGE_FLAG_GRID = 1 << 0;
public static final int CHANGE_FLAG_ICON_SIZE = 1 << 1;
// Constants that affects the interpolation curve between statically defined device profile
// buckets.
private static float KNEARESTNEIGHBOR = 3;
@@ -61,9 +64,9 @@ public class InvariantDeviceProfile {
private static float WEIGHT_EFFICIENT = 100000f;
// Profile-defining invariant properties
String name;
float minWidthDps;
float minHeightDps;
private String name;
private float minWidthDps;
private float minHeightDps;
/**
* Number of icons per row and column in the workspace.
@@ -95,9 +98,11 @@ public class InvariantDeviceProfile {
public Point defaultWallpaperSize;
private final ArrayList<OnIDPChangeListener> mChangeListeners = new ArrayList<>();
private ConfigMonitor mConfigMonitor;
@VisibleForTesting
public InvariantDeviceProfile() {
}
public InvariantDeviceProfile() {}
private InvariantDeviceProfile(InvariantDeviceProfile p) {
this(p.name, p.minWidthDps, p.minHeightDps, p.numRows, p.numColumns,
@@ -125,6 +130,12 @@ public class InvariantDeviceProfile {
@TargetApi(23)
private InvariantDeviceProfile(Context context) {
initGrid(context);
mConfigMonitor = new ConfigMonitor(context,
APPLY_CONFIG_AT_RUNTIME.get() ? this::onConfigChanged : this::killProcess);
}
private void initGrid(Context context) {
WindowManager wm = (WindowManager) context.getSystemService(Context.WINDOW_SERVICE);
Display display = wm.getDefaultDisplay();
DisplayMetrics dm = new DisplayMetrics();
@@ -185,6 +196,44 @@ public class InvariantDeviceProfile {
}
}
public void addOnChangeListener(OnIDPChangeListener listener) {
mChangeListeners.add(listener);
}
private void killProcess(Context context) {
Log.e("ConfigMonitor", "restarting launcher");
android.os.Process.killProcess(android.os.Process.myPid());
}
private void onConfigChanged(Context context) {
// Config changes, what shall we do?
InvariantDeviceProfile oldProfile = new InvariantDeviceProfile(this);
// Re-init grid
initGrid(context);
int changeFlags = 0;
if (numRows != oldProfile.numRows ||
numColumns != oldProfile.numColumns ||
numFolderColumns != oldProfile.numFolderColumns ||
numFolderRows != oldProfile.numFolderRows ||
numHotseatIcons != oldProfile.numHotseatIcons) {
changeFlags |= CHANGE_FLAG_GRID;
}
if (iconSize != oldProfile.iconSize || iconBitmapSize != oldProfile.iconBitmapSize) {
changeFlags |= CHANGE_FLAG_ICON_SIZE;
}
// Create a new config monitor
mConfigMonitor.unregister();
mConfigMonitor = new ConfigMonitor(context, this::onConfigChanged);
for (OnIDPChangeListener listener : mChangeListeners) {
listener.onIdpChanged(changeFlags, this);
}
}
ArrayList<InvariantDeviceProfile> getPredefinedDeviceProfiles(Context context) {
ArrayList<InvariantDeviceProfile> profiles = new ArrayList<>();
try (XmlResourceParser parser = context.getResources().getXml(R.xml.device_profiles)) {
@@ -356,4 +405,8 @@ public class InvariantDeviceProfile {
return x * aspectRatio + y;
}
public interface OnIDPChangeListener {
void onIdpChanged(int changeFlags, InvariantDeviceProfile profile);
}
}