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Commit b0de412e authored by Catherine Liang's avatar Catherine Liang
Browse files

Fix Launcher preview display size 

When previewing the Launcher in the Wallpaper Picker for a different
display size than the current screen, the preview no longer adapts to
that screen size.

Flag: ACONFIG com.android.wallpaper.multi_crop_preview_ui_flag DEVELOPMENT
Bug: 316000567
Test: manually verified
Change-Id: Ib10f2c9acec98ed99cadd40a588e2ffdea900ba6
parent 820460b1

src/com/android/launcher3/graphics/LauncherPreviewRenderer.java

+17 −1
Original line number Diff line number Diff line
@@ -35,6 +35,7 @@ import android.appwidget.AppWidgetHostView; 
import android.appwidget.AppWidgetProviderInfo;

import android.content.Context;

import android.content.ContextWrapper;

import android.content.res.Configuration;

import android.content.res.TypedArray;

import android.graphics.PointF;

import android.graphics.Rect;
@@ -197,7 +198,7 @@ public class LauncherPreviewRenderer extends ContextWrapper 
        mUiHandler = new Handler(Looper.getMainLooper());

        mContext = context;

        mIdp = idp;

        mDp = idp.getDeviceProfile(context).toBuilder(context).setViewScaleProvider(

        mDp = getDeviceProfileForPreview(context).toBuilder(context).setViewScaleProvider(

                this::getAppWidgetScale).build();

        if (context instanceof PreviewContext) {

            Context tempContext = ((PreviewContext) context).getBaseContext();
@@ -259,6 +260,21 @@ public class LauncherPreviewRenderer extends ContextWrapper 
        mAppWidgetHost = new LauncherPreviewAppWidgetHost(context);

    }



    /**

     * Returns the device profile based on resource configuration for previewing various display

     * sizes

     */

    private DeviceProfile getDeviceProfileForPreview(Context context) {

        float density = context.getResources().getDisplayMetrics().density;

        Configuration config = context.getResources().getConfiguration();



        return mIdp.getBestMatch(

                config.screenWidthDp * density,

                config.screenHeightDp * density,

                WindowManagerProxy.INSTANCE.get(context).getRotation(context)

        );

    }



    /**

     * Returns the insets of the screen closest to the display given by the context

     */