【Android】根据包名返回对应dpi

Android学习笔记：Zcutie’s知识空间

问题：由于系统会强制统一dpi，所以当应用自适配时需要对应的dpi时无法获取
代码地址：\frameworks\base\core\java\android\content\res\ResourcesImpl.java

    DisplayMetrics getDisplayMetrics() {
   
        if (DEBUG_CONFIG) Slog.v(TAG, "Returning DisplayMetrics: " + mMetrics.widthPixels
                        + "x" + mMetrics.heightPixels + " " + mMetrics.density);
        //add for dpi 20231204 start
        if (ActivityThread.currentOpPackageName().contains("com.xxx")
                    ||ActivityThread.currentOpPackageName().equals("com.android.launcher")
                        || ActivityThread.currentOpPackageName().equals("com.android.systemui")) {
   
            mMetrics.density = (float) 2.5;
            mMetrics.scaledDensity = (float) 2.5;
            mMetrics.densityDpi = 400;
        }
        //add for dpi 20231204 end

        return mMetrics;
    }