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Load wallpaper colors in a background thread.

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In WallpaperManagerService, it takes some time to load wallpaper colors
from image wallpapers since bitmap decoding will be involved. This will
block the UI thread and lead to app launch latency. So here we are
making it in another thread to avoid this.

Bug: 133396959
Test: robotest, reboot phone and look at boot trace
Change-Id: Ibd1952a4bf10431ba4be4dd69634d64354670daa
This commit is contained in:
Yi-Ling Chuang
2019-05-28 16:14:08 +08:00
parent 7b2897ff93
commit bef25b52fb
1 changed files with 33 additions and 10 deletions
Download Patch File Download Diff File Expand all files Collapse all files

43
src/com/android/settings/FallbackHome.java
View File

@@ -25,6 +25,7 @@ import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.content.pm.ResolveInfo;
import android.os.AsyncTask;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
@@ -65,7 +66,7 @@ public class FallbackHome extends Activity {
@Override
public void onColorsChanged(WallpaperColors colors, int which) {
if (colors != null) {
View decorView = getWindow().getDecorView();
final View decorView = getWindow().getDecorView();
decorView.setSystemUiVisibility(
updateVisibilityFlagsFromColors(colors, decorView.getSystemUiVisibility()));
mWallManager.removeOnColorsChangedListener(this);
@@ -81,7 +82,7 @@ public class FallbackHome extends Activity {
// we don't flash the wallpaper before SUW
mProvisioned = Settings.Global.getInt(getContentResolver(),
Settings.Global.DEVICE_PROVISIONED, 0) != 0;
int flags;
final int flags;
if (!mProvisioned) {
setTheme(R.style.FallbackHome_SetupWizard);
flags = View.SYSTEM_UI_FLAG_FULLSCREEN | View.SYSTEM_UI_FLAG_HIDE_NAVIGATION
@@ -91,18 +92,11 @@ public class FallbackHome extends Activity {
| View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION;
}
// Set the system ui flags to light status bar if the wallpaper supports dark text to match
// current system ui color tints. Use a listener to wait for colors if not ready yet.
mWallManager = getSystemService(WallpaperManager.class);
if (mWallManager == null) {
Log.w(TAG, "Wallpaper manager isn't ready, can't listen to color changes!");
} else {
WallpaperColors colors = mWallManager.getWallpaperColors(WallpaperManager.FLAG_SYSTEM);
if (colors == null) {
mWallManager.addOnColorsChangedListener(mColorsChangedListener, null /* handler */);
} else {
flags = updateVisibilityFlagsFromColors(colors, flags);
}
loadWallpaperColors(flags);
}
getWindow().getDecorView().setSystemUiVisibility(flags);
@@ -139,6 +133,33 @@ public class FallbackHome extends Activity {
}
};
private void loadWallpaperColors(int flags) {
final AsyncTask loadWallpaperColorsTask = new AsyncTask<Object, Void, Integer>() {
@Override
protected Integer doInBackground(Object... params) {
final WallpaperColors colors =
mWallManager.getWallpaperColors(WallpaperManager.FLAG_SYSTEM);
// Use a listener to wait for colors if not ready yet.
if (colors == null) {
mWallManager.addOnColorsChangedListener(mColorsChangedListener,
null /* handler */);
return null;
}
return updateVisibilityFlagsFromColors(colors, flags);
}
@Override
protected void onPostExecute(Integer flagsToUpdate) {
if (flagsToUpdate == null) {
return;
}
getWindow().getDecorView().setSystemUiVisibility(flagsToUpdate);
}
};
loadWallpaperColorsTask.execute();
}
private void maybeFinish() {
if (getSystemService(UserManager.class).isUserUnlocked()) {
final Intent homeIntent = new Intent(Intent.ACTION_MAIN)
@@ -162,6 +183,8 @@ public class FallbackHome extends Activity {
}
}
// Set the system ui flags to light status bar if the wallpaper supports dark text to match
// current system ui color tints.
private int updateVisibilityFlagsFromColors(WallpaperColors colors, int flags) {
if ((colors.getColorHints() & WallpaperColors.HINT_SUPPORTS_DARK_TEXT) != 0) {
return flags | View.SYSTEM_UI_FLAG_LIGHT_STATUS_BAR