比例系数为xxhdpi机器人？ [英] Scale factor for xxhdpi android?

问题描述

根据<一href="http://developer.android.com/training/multiscreen/screendensities.html">http://developer.android.com/training/multiscreen/screendensities.html

以下规模的因素提到

xhdpi：2.0 华电国际：1.5 MDPI：1.0（基线） LDPI：0.75

xhdpi: 2.0 hdpi: 1.5 mdpi: 1.0 (baseline) ldpi: 0.75

我想知道的比例因子是什么xxhdpi？

I was wondering what the scale factor would be for xxhdpi?

推荐答案

在<一个href="https://android.googlesource.com/platform/frameworks/base/+/master/core/java/android/util/DisplayMetrics.java">android.util.DisplayMetrics,你可以看到，比例因子是 0.00625

In android.util.DisplayMetrics, you can see that scaling factor is 0.00625:

/**
 * Scaling factor to convert a density in DPI units to the density scale.
 * @hide
 */
public static final float DENSITY_DEFAULT_SCALE = 1.0f / DENSITY_DEFAULT;

凡为<一个href="http://developer.android.com/reference/android/util/DisplayMetrics.html#DENSITY_DEFAULT">DENSITY_DEFAULT 160 - >缩放因子= 1.0F / 160 = 0.00625

Where as DENSITY_DEFAULT is 160 --> scaling factor = 1.0f / 160 = 0.00625.

sizeScale = DENSITY_DEFAULT_SCALE * DENSITY_DPI

这是这样的：

• LDPI = 0.00625 * 120 - > < STRONG> 0.75
• MDPI = 0.00625 * <一href="http://developer.android.com/reference/android/util/DisplayMetrics.html#DENSITY_MEDIUM">160 - > 1.0
• 华电国际 = 0.00625 * 240 - > < STRONG> 1.5
• xhdpi = 0.00625 * 320 - > < STRONG> 2.0
• xxhdpi = 0.00625 * <一href="http://developer.android.com/reference/android/util/DisplayMetrics.html#DENSITY_XXHIGH">480 - > 3.0
• xxxhdpi = 0.00625 * <一href="http://developer.android.com/reference/android/util/DisplayMetrics.html#DENSITY_XXXHIGH">640 - > 4.0

• ldpi = 0.00625 * 120 -> 0.75
• mdpi = 0.00625 * 160 -> 1.0
• hdpi = 0.00625 * 240 -> 1.5
• xhdpi = 0.00625 * 320 -> 2.0
• xxhdpi = 0.00625 * 480 -> 3.0
• xxxhdpi = 0.00625 * 640 -> 4.0

不完全是火箭科学，但希望这将是有用的人：）

Not exactly a rocket science, but hope this will be useful for someone :)

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