DisplayMetrics.java revision f6d9cd19e28d78fe3f46914959932ea1244b04ed
19066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/* 29066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Copyright (C) 2006 The Android Open Source Project 39066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 49066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Licensed under the Apache License, Version 2.0 (the "License"); 59066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * you may not use this file except in compliance with the License. 69066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * You may obtain a copy of the License at 79066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 89066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * http://www.apache.org/licenses/LICENSE-2.0 99066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Unless required by applicable law or agreed to in writing, software 119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * distributed under the License is distributed on an "AS IS" BASIS, 129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * See the License for the specific language governing permissions and 149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * limitations under the License. 159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectpackage android.util; 189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19e2515eebf42c763c0a2d9f873a153711778cfc17Dianne Hackbornimport android.os.SystemProperties; 209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/** 239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * A structure describing general information about a display, such as its 249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * size, density, and font scaling. 2571d4b289a7a934ecd16c3036b812d40db6d3a74dScott Main * <p>To access the DisplayMetrics members, initialize an object like this:</p> 2671d4b289a7a934ecd16c3036b812d40db6d3a74dScott Main * <pre> DisplayMetrics metrics = new DisplayMetrics(); 2771d4b289a7a934ecd16c3036b812d40db6d3a74dScott Main * getWindowManager().getDefaultDisplay().getMetrics(metrics);</pre> 289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectpublic class DisplayMetrics { 309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 31a53b828635fce8b6b2d3e3377d74d72070056623Dianne Hackborn * Standard quantized DPI for low-density screens. 32a53b828635fce8b6b2d3e3377d74d72070056623Dianne Hackborn */ 33a53b828635fce8b6b2d3e3377d74d72070056623Dianne Hackborn public static final int DENSITY_LOW = 120; 34a53b828635fce8b6b2d3e3377d74d72070056623Dianne Hackborn 35a53b828635fce8b6b2d3e3377d74d72070056623Dianne Hackborn /** 36a53b828635fce8b6b2d3e3377d74d72070056623Dianne Hackborn * Standard quantized DPI for medium-density screens. 37a53b828635fce8b6b2d3e3377d74d72070056623Dianne Hackborn */ 38a53b828635fce8b6b2d3e3377d74d72070056623Dianne Hackborn public static final int DENSITY_MEDIUM = 160; 39a53b828635fce8b6b2d3e3377d74d72070056623Dianne Hackborn 40a53b828635fce8b6b2d3e3377d74d72070056623Dianne Hackborn /** 41493861dfa011f482987c7a49d147d6e50a90c692Dianne Hackborn * This is a secondary density, added for some common screen configurations. 42493861dfa011f482987c7a49d147d6e50a90c692Dianne Hackborn * It is recommended that applications not generally target this as a first 43493861dfa011f482987c7a49d147d6e50a90c692Dianne Hackborn * class density -- that is, don't supply specific graphics for this 44493861dfa011f482987c7a49d147d6e50a90c692Dianne Hackborn * density, instead allow the platform to scale from other densities 45493861dfa011f482987c7a49d147d6e50a90c692Dianne Hackborn * (typically {@link #DENSITY_HIGH}) as 46493861dfa011f482987c7a49d147d6e50a90c692Dianne Hackborn * appropriate. In most cases (such as using bitmaps in 47493861dfa011f482987c7a49d147d6e50a90c692Dianne Hackborn * {@link android.graphics.drawable.Drawable}) the platform 48493861dfa011f482987c7a49d147d6e50a90c692Dianne Hackborn * can perform this scaling at load time, so the only cost is some slight 49493861dfa011f482987c7a49d147d6e50a90c692Dianne Hackborn * startup runtime overhead. 50493861dfa011f482987c7a49d147d6e50a90c692Dianne Hackborn * 51493861dfa011f482987c7a49d147d6e50a90c692Dianne Hackborn * <p>This density was original introduced to correspond with a 52493861dfa011f482987c7a49d147d6e50a90c692Dianne Hackborn * 720p TV screen: the density for 1080p televisions is 53493861dfa011f482987c7a49d147d6e50a90c692Dianne Hackborn * {@link #DENSITY_XHIGH}, and the value here provides the same UI 54493861dfa011f482987c7a49d147d6e50a90c692Dianne Hackborn * size for a TV running at 720p. It has also found use in 7" tablets, 55493861dfa011f482987c7a49d147d6e50a90c692Dianne Hackborn * when these devices have 1280x720 displays. 56b96cbbd11c4590bec846212c33361e02293f18b5Dianne Hackborn */ 57b96cbbd11c4590bec846212c33361e02293f18b5Dianne Hackborn public static final int DENSITY_TV = 213; 58b96cbbd11c4590bec846212c33361e02293f18b5Dianne Hackborn 59b96cbbd11c4590bec846212c33361e02293f18b5Dianne Hackborn /** 60a53b828635fce8b6b2d3e3377d74d72070056623Dianne Hackborn * Standard quantized DPI for high-density screens. 61a53b828635fce8b6b2d3e3377d74d72070056623Dianne Hackborn */ 62a53b828635fce8b6b2d3e3377d74d72070056623Dianne Hackborn public static final int DENSITY_HIGH = 240; 63a53b828635fce8b6b2d3e3377d74d72070056623Dianne Hackborn 64a53b828635fce8b6b2d3e3377d74d72070056623Dianne Hackborn /** 65f6d4045d6c386fe09eafb894aa1ff79ca6f04178Adam Powell * Intermediate density for screens that sit between {@link #DENSITY_HIGH} (240dpi) and 66f6d4045d6c386fe09eafb894aa1ff79ca6f04178Adam Powell * {@link #DENSITY_XHIGH} (320dpi). This is not a density that applications should target, 67f6d4045d6c386fe09eafb894aa1ff79ca6f04178Adam Powell * instead relying on the system to scale their {@link #DENSITY_XHIGH} assets for them. 68f6d4045d6c386fe09eafb894aa1ff79ca6f04178Adam Powell */ 69f6d4045d6c386fe09eafb894aa1ff79ca6f04178Adam Powell public static final int DENSITY_280 = 280; 70f6d4045d6c386fe09eafb894aa1ff79ca6f04178Adam Powell 71f6d4045d6c386fe09eafb894aa1ff79ca6f04178Adam Powell /** 72a0b46c9c441f017a2008ca8ee2c864987465996bDianne Hackborn * Standard quantized DPI for extra-high-density screens. 73a0b46c9c441f017a2008ca8ee2c864987465996bDianne Hackborn */ 74a0b46c9c441f017a2008ca8ee2c864987465996bDianne Hackborn public static final int DENSITY_XHIGH = 320; 75a0b46c9c441f017a2008ca8ee2c864987465996bDianne Hackborn 76a0b46c9c441f017a2008ca8ee2c864987465996bDianne Hackborn /** 7709acb7ca897c9f49dd65b7173688e4ca63ca5dd3Dianne Hackborn * Intermediate density for screens that sit somewhere between 78a3fb40d5f492825bb86769f541620baca5616e05Dianne Hackborn * {@link #DENSITY_XHIGH} (320 dpi) and {@link #DENSITY_XXHIGH} (480 dpi). 7909acb7ca897c9f49dd65b7173688e4ca63ca5dd3Dianne Hackborn * This is not a density that applications should target, instead relying 8009acb7ca897c9f49dd65b7173688e4ca63ca5dd3Dianne Hackborn * on the system to scale their {@link #DENSITY_XXHIGH} assets for them. 8109acb7ca897c9f49dd65b7173688e4ca63ca5dd3Dianne Hackborn */ 82f6d9cd19e28d78fe3f46914959932ea1244b04edAdam Powell public static final int DENSITY_360 = 360; 83f6d9cd19e28d78fe3f46914959932ea1244b04edAdam Powell 84f6d9cd19e28d78fe3f46914959932ea1244b04edAdam Powell /** 85f6d9cd19e28d78fe3f46914959932ea1244b04edAdam Powell * Intermediate density for screens that sit somewhere between 86f6d9cd19e28d78fe3f46914959932ea1244b04edAdam Powell * {@link #DENSITY_XHIGH} (320 dpi) and {@link #DENSITY_XXHIGH} (480 dpi). 87f6d9cd19e28d78fe3f46914959932ea1244b04edAdam Powell * This is not a density that applications should target, instead relying 88f6d9cd19e28d78fe3f46914959932ea1244b04edAdam Powell * on the system to scale their {@link #DENSITY_XXHIGH} assets for them. 89f6d9cd19e28d78fe3f46914959932ea1244b04edAdam Powell */ 9009acb7ca897c9f49dd65b7173688e4ca63ca5dd3Dianne Hackborn public static final int DENSITY_400 = 400; 9109acb7ca897c9f49dd65b7173688e4ca63ca5dd3Dianne Hackborn 9209acb7ca897c9f49dd65b7173688e4ca63ca5dd3Dianne Hackborn /** 9361a5a3f2c38ca908b7a607e7bc19b8553f59780eJeff Davidson * Standard quantized DPI for extra-extra-high-density screens. 94d96e3dfa02b203b1fc826e80d6f9aa074ba9c250Dianne Hackborn */ 95d96e3dfa02b203b1fc826e80d6f9aa074ba9c250Dianne Hackborn public static final int DENSITY_XXHIGH = 480; 96d96e3dfa02b203b1fc826e80d6f9aa074ba9c250Dianne Hackborn 97d96e3dfa02b203b1fc826e80d6f9aa074ba9c250Dianne Hackborn /** 98a3fb40d5f492825bb86769f541620baca5616e05Dianne Hackborn * Intermediate density for screens that sit somewhere between 99d561913798c6ee3c987f39fa19f70e53eeb93ce6Philip Nowell * {@link #DENSITY_XXHIGH} (480 dpi) and {@link #DENSITY_XXXHIGH} (640 dpi). 100a3fb40d5f492825bb86769f541620baca5616e05Dianne Hackborn * This is not a density that applications should target, instead relying 101a3fb40d5f492825bb86769f541620baca5616e05Dianne Hackborn * on the system to scale their {@link #DENSITY_XXXHIGH} assets for them. 102a3fb40d5f492825bb86769f541620baca5616e05Dianne Hackborn */ 103a3fb40d5f492825bb86769f541620baca5616e05Dianne Hackborn public static final int DENSITY_560 = 560; 104a3fb40d5f492825bb86769f541620baca5616e05Dianne Hackborn 105a3fb40d5f492825bb86769f541620baca5616e05Dianne Hackborn /** 10656a2301c7a1169a0692cadaeb48b9a6385d700f5Dianne Hackborn * Standard quantized DPI for extra-extra-extra-high-density screens. Applications 10756a2301c7a1169a0692cadaeb48b9a6385d700f5Dianne Hackborn * should not generally worry about this density; relying on XHIGH graphics 10856a2301c7a1169a0692cadaeb48b9a6385d700f5Dianne Hackborn * being scaled up to it should be sufficient for almost all cases. A typical 10956a2301c7a1169a0692cadaeb48b9a6385d700f5Dianne Hackborn * use of this density would be 4K television screens -- 3840x2160, which 11056a2301c7a1169a0692cadaeb48b9a6385d700f5Dianne Hackborn * is 2x a traditional HD 1920x1080 screen which runs at DENSITY_XHIGH. 11156a2301c7a1169a0692cadaeb48b9a6385d700f5Dianne Hackborn */ 11256a2301c7a1169a0692cadaeb48b9a6385d700f5Dianne Hackborn public static final int DENSITY_XXXHIGH = 640; 11356a2301c7a1169a0692cadaeb48b9a6385d700f5Dianne Hackborn 11456a2301c7a1169a0692cadaeb48b9a6385d700f5Dianne Hackborn /** 1159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The reference density used throughout the system. 1169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 117a53b828635fce8b6b2d3e3377d74d72070056623Dianne Hackborn public static final int DENSITY_DEFAULT = DENSITY_MEDIUM; 1189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1192e3d3b9ce74cb9c906e5cc0e9898d757d45c4237Mitsuru Oshima /** 120908aecc3a63c5520d5b11da14a9383f885b7d126Dianne Hackborn * Scaling factor to convert a density in DPI units to the density scale. 121908aecc3a63c5520d5b11da14a9383f885b7d126Dianne Hackborn * @hide 122908aecc3a63c5520d5b11da14a9383f885b7d126Dianne Hackborn */ 123908aecc3a63c5520d5b11da14a9383f885b7d126Dianne Hackborn public static final float DENSITY_DEFAULT_SCALE = 1.0f / DENSITY_DEFAULT; 124908aecc3a63c5520d5b11da14a9383f885b7d126Dianne Hackborn 125908aecc3a63c5520d5b11da14a9383f885b7d126Dianne Hackborn /** 1262e3d3b9ce74cb9c906e5cc0e9898d757d45c4237Mitsuru Oshima * The device's density. 127908aecc3a63c5520d5b11da14a9383f885b7d126Dianne Hackborn * @hide because eventually this should be able to change while 128a53b828635fce8b6b2d3e3377d74d72070056623Dianne Hackborn * running, so shouldn't be a constant. 129908aecc3a63c5520d5b11da14a9383f885b7d126Dianne Hackborn * @deprecated There is no longer a static density; you can find the 130908aecc3a63c5520d5b11da14a9383f885b7d126Dianne Hackborn * density for a display in {@link #densityDpi}. 1312e3d3b9ce74cb9c906e5cc0e9898d757d45c4237Mitsuru Oshima */ 132908aecc3a63c5520d5b11da14a9383f885b7d126Dianne Hackborn @Deprecated 133dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn public static int DENSITY_DEVICE = getDeviceDensity(); 1349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The absolute width of the display in pixels. 1379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int widthPixels; 1399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The absolute height of the display in pixels. 1419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int heightPixels; 1439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The logical density of the display. This is a scaling factor for the 1459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Density Independent Pixel unit, where one DIP is one pixel on an 1469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * approximately 160 dpi screen (for example a 240x320, 1.5"x2" screen), 1479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * providing the baseline of the system's display. Thus on a 160dpi screen 1486b13bc043e715b5415b701e93141daa0d49fa364Dirk Dougherty * this density value will be 1; on a 120 dpi screen it would be .75; etc. 1499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 1509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * <p>This value does not exactly follow the real screen size (as given by 1519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #xdpi} and {@link #ydpi}, but rather is used to scale the size of 1529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the overall UI in steps based on gross changes in the display dpi. For 1539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * example, a 240x320 screen will have a density of 1 even if its width is 1549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 1.8", 1.3", etc. However, if the screen resolution is increased to 1559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 320x480 but the screen size remained 1.5"x2" then the density would be 1569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * increased (probably to 1.5). 1579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 158a53b828635fce8b6b2d3e3377d74d72070056623Dianne Hackborn * @see #DENSITY_DEFAULT 1599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public float density; 1619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 16211ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * The screen density expressed as dots-per-inch. May be either 16311ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * {@link #DENSITY_LOW}, {@link #DENSITY_MEDIUM}, or {@link #DENSITY_HIGH}. 16411ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn */ 16511ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn public int densityDpi; 16611ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn /** 1679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * A scaling factor for fonts displayed on the display. This is the same 1689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * as {@link #density}, except that it may be adjusted in smaller 1699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * increments at runtime based on a user preference for the font size. 1709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public float scaledDensity; 1729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The exact physical pixels per inch of the screen in the X dimension. 1749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public float xdpi; 1769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The exact physical pixels per inch of the screen in the Y dimension. 1789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public float ydpi; 1809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18181e56d535c853d73ff537357da5b935f51cb779dDianne Hackborn /** 18281e56d535c853d73ff537357da5b935f51cb779dDianne Hackborn * The reported display width prior to any compatibility mode scaling 18381e56d535c853d73ff537357da5b935f51cb779dDianne Hackborn * being applied. 18481e56d535c853d73ff537357da5b935f51cb779dDianne Hackborn * @hide 18581e56d535c853d73ff537357da5b935f51cb779dDianne Hackborn */ 1862b31d53161789358de57fd396716a6503855c5daDianne Hackborn public int noncompatWidthPixels; 18781e56d535c853d73ff537357da5b935f51cb779dDianne Hackborn /** 18881e56d535c853d73ff537357da5b935f51cb779dDianne Hackborn * The reported display height prior to any compatibility mode scaling 18981e56d535c853d73ff537357da5b935f51cb779dDianne Hackborn * being applied. 19081e56d535c853d73ff537357da5b935f51cb779dDianne Hackborn * @hide 19181e56d535c853d73ff537357da5b935f51cb779dDianne Hackborn */ 1922b31d53161789358de57fd396716a6503855c5daDianne Hackborn public int noncompatHeightPixels; 1932b31d53161789358de57fd396716a6503855c5daDianne Hackborn /** 1942b31d53161789358de57fd396716a6503855c5daDianne Hackborn * The reported display density prior to any compatibility mode scaling 1952b31d53161789358de57fd396716a6503855c5daDianne Hackborn * being applied. 1962b31d53161789358de57fd396716a6503855c5daDianne Hackborn * @hide 1972b31d53161789358de57fd396716a6503855c5daDianne Hackborn */ 1982b31d53161789358de57fd396716a6503855c5daDianne Hackborn public float noncompatDensity; 1992b31d53161789358de57fd396716a6503855c5daDianne Hackborn /** 200908aecc3a63c5520d5b11da14a9383f885b7d126Dianne Hackborn * The reported display density prior to any compatibility mode scaling 201908aecc3a63c5520d5b11da14a9383f885b7d126Dianne Hackborn * being applied. 202908aecc3a63c5520d5b11da14a9383f885b7d126Dianne Hackborn * @hide 203908aecc3a63c5520d5b11da14a9383f885b7d126Dianne Hackborn */ 204908aecc3a63c5520d5b11da14a9383f885b7d126Dianne Hackborn public int noncompatDensityDpi; 205908aecc3a63c5520d5b11da14a9383f885b7d126Dianne Hackborn /** 2062b31d53161789358de57fd396716a6503855c5daDianne Hackborn * The reported scaled density prior to any compatibility mode scaling 2072b31d53161789358de57fd396716a6503855c5daDianne Hackborn * being applied. 2082b31d53161789358de57fd396716a6503855c5daDianne Hackborn * @hide 2092b31d53161789358de57fd396716a6503855c5daDianne Hackborn */ 2102b31d53161789358de57fd396716a6503855c5daDianne Hackborn public float noncompatScaledDensity; 2112b31d53161789358de57fd396716a6503855c5daDianne Hackborn /** 2122b31d53161789358de57fd396716a6503855c5daDianne Hackborn * The reported display xdpi prior to any compatibility mode scaling 2132b31d53161789358de57fd396716a6503855c5daDianne Hackborn * being applied. 2142b31d53161789358de57fd396716a6503855c5daDianne Hackborn * @hide 2152b31d53161789358de57fd396716a6503855c5daDianne Hackborn */ 2162b31d53161789358de57fd396716a6503855c5daDianne Hackborn public float noncompatXdpi; 2172b31d53161789358de57fd396716a6503855c5daDianne Hackborn /** 2182b31d53161789358de57fd396716a6503855c5daDianne Hackborn * The reported display ydpi prior to any compatibility mode scaling 2192b31d53161789358de57fd396716a6503855c5daDianne Hackborn * being applied. 2202b31d53161789358de57fd396716a6503855c5daDianne Hackborn * @hide 2212b31d53161789358de57fd396716a6503855c5daDianne Hackborn */ 2222b31d53161789358de57fd396716a6503855c5daDianne Hackborn public float noncompatYdpi; 223e2515eebf42c763c0a2d9f873a153711778cfc17Dianne Hackborn 2249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public DisplayMetrics() { 2259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setTo(DisplayMetrics o) { 2289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project widthPixels = o.widthPixels; 2299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project heightPixels = o.heightPixels; 2309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project density = o.density; 23111ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn densityDpi = o.densityDpi; 2329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scaledDensity = o.scaledDensity; 2339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project xdpi = o.xdpi; 2349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ydpi = o.ydpi; 2352b31d53161789358de57fd396716a6503855c5daDianne Hackborn noncompatWidthPixels = o.noncompatWidthPixels; 2362b31d53161789358de57fd396716a6503855c5daDianne Hackborn noncompatHeightPixels = o.noncompatHeightPixels; 2372b31d53161789358de57fd396716a6503855c5daDianne Hackborn noncompatDensity = o.noncompatDensity; 238908aecc3a63c5520d5b11da14a9383f885b7d126Dianne Hackborn noncompatDensityDpi = o.noncompatDensityDpi; 2392b31d53161789358de57fd396716a6503855c5daDianne Hackborn noncompatScaledDensity = o.noncompatScaledDensity; 2402b31d53161789358de57fd396716a6503855c5daDianne Hackborn noncompatXdpi = o.noncompatXdpi; 2412b31d53161789358de57fd396716a6503855c5daDianne Hackborn noncompatYdpi = o.noncompatYdpi; 2429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setToDefaults() { 2459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project widthPixels = 0; 2469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project heightPixels = 0; 247a492c3a7b2c18426fd0cb4d017eacbc368195dc5Jeff Brown density = DENSITY_DEVICE / (float) DENSITY_DEFAULT; 248a492c3a7b2c18426fd0cb4d017eacbc368195dc5Jeff Brown densityDpi = DENSITY_DEVICE; 2499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scaledDensity = density; 250a492c3a7b2c18426fd0cb4d017eacbc368195dc5Jeff Brown xdpi = DENSITY_DEVICE; 251a492c3a7b2c18426fd0cb4d017eacbc368195dc5Jeff Brown ydpi = DENSITY_DEVICE; 252a492c3a7b2c18426fd0cb4d017eacbc368195dc5Jeff Brown noncompatWidthPixels = widthPixels; 253a492c3a7b2c18426fd0cb4d017eacbc368195dc5Jeff Brown noncompatHeightPixels = heightPixels; 254a492c3a7b2c18426fd0cb4d017eacbc368195dc5Jeff Brown noncompatDensity = density; 255a492c3a7b2c18426fd0cb4d017eacbc368195dc5Jeff Brown noncompatDensityDpi = densityDpi; 256a492c3a7b2c18426fd0cb4d017eacbc368195dc5Jeff Brown noncompatScaledDensity = scaledDensity; 257a492c3a7b2c18426fd0cb4d017eacbc368195dc5Jeff Brown noncompatXdpi = xdpi; 258a492c3a7b2c18426fd0cb4d017eacbc368195dc5Jeff Brown noncompatYdpi = ydpi; 259a492c3a7b2c18426fd0cb4d017eacbc368195dc5Jeff Brown } 260a492c3a7b2c18426fd0cb4d017eacbc368195dc5Jeff Brown 261a492c3a7b2c18426fd0cb4d017eacbc368195dc5Jeff Brown @Override 262a492c3a7b2c18426fd0cb4d017eacbc368195dc5Jeff Brown public boolean equals(Object o) { 263a492c3a7b2c18426fd0cb4d017eacbc368195dc5Jeff Brown return o instanceof DisplayMetrics && equals((DisplayMetrics)o); 264a492c3a7b2c18426fd0cb4d017eacbc368195dc5Jeff Brown } 265a492c3a7b2c18426fd0cb4d017eacbc368195dc5Jeff Brown 266a492c3a7b2c18426fd0cb4d017eacbc368195dc5Jeff Brown /** 267a492c3a7b2c18426fd0cb4d017eacbc368195dc5Jeff Brown * Returns true if these display metrics equal the other display metrics. 268a492c3a7b2c18426fd0cb4d017eacbc368195dc5Jeff Brown * 269a492c3a7b2c18426fd0cb4d017eacbc368195dc5Jeff Brown * @param other The display metrics with which to compare. 270a492c3a7b2c18426fd0cb4d017eacbc368195dc5Jeff Brown * @return True if the display metrics are equal. 271a492c3a7b2c18426fd0cb4d017eacbc368195dc5Jeff Brown */ 272a492c3a7b2c18426fd0cb4d017eacbc368195dc5Jeff Brown public boolean equals(DisplayMetrics other) { 2737ac8bbddfcaa2539f6311be54323d22f2dcc4a35Dianne Hackborn return equalsPhysical(other) 2747ac8bbddfcaa2539f6311be54323d22f2dcc4a35Dianne Hackborn && scaledDensity == other.scaledDensity 2757ac8bbddfcaa2539f6311be54323d22f2dcc4a35Dianne Hackborn && noncompatScaledDensity == other.noncompatScaledDensity; 2767ac8bbddfcaa2539f6311be54323d22f2dcc4a35Dianne Hackborn } 2777ac8bbddfcaa2539f6311be54323d22f2dcc4a35Dianne Hackborn 2787ac8bbddfcaa2539f6311be54323d22f2dcc4a35Dianne Hackborn /** 2797ac8bbddfcaa2539f6311be54323d22f2dcc4a35Dianne Hackborn * Returns true if the physical aspects of the two display metrics 2807ac8bbddfcaa2539f6311be54323d22f2dcc4a35Dianne Hackborn * are equal. This ignores the scaled density, which is a logical 2817ac8bbddfcaa2539f6311be54323d22f2dcc4a35Dianne Hackborn * attribute based on the current desired font size. 2827ac8bbddfcaa2539f6311be54323d22f2dcc4a35Dianne Hackborn * 2837ac8bbddfcaa2539f6311be54323d22f2dcc4a35Dianne Hackborn * @param other The display metrics with which to compare. 2847ac8bbddfcaa2539f6311be54323d22f2dcc4a35Dianne Hackborn * @return True if the display metrics are equal. 2857ac8bbddfcaa2539f6311be54323d22f2dcc4a35Dianne Hackborn * @hide 2867ac8bbddfcaa2539f6311be54323d22f2dcc4a35Dianne Hackborn */ 2877ac8bbddfcaa2539f6311be54323d22f2dcc4a35Dianne Hackborn public boolean equalsPhysical(DisplayMetrics other) { 288a492c3a7b2c18426fd0cb4d017eacbc368195dc5Jeff Brown return other != null 289a492c3a7b2c18426fd0cb4d017eacbc368195dc5Jeff Brown && widthPixels == other.widthPixels 290a492c3a7b2c18426fd0cb4d017eacbc368195dc5Jeff Brown && heightPixels == other.heightPixels 291a492c3a7b2c18426fd0cb4d017eacbc368195dc5Jeff Brown && density == other.density 292a492c3a7b2c18426fd0cb4d017eacbc368195dc5Jeff Brown && densityDpi == other.densityDpi 293a492c3a7b2c18426fd0cb4d017eacbc368195dc5Jeff Brown && xdpi == other.xdpi 294a492c3a7b2c18426fd0cb4d017eacbc368195dc5Jeff Brown && ydpi == other.ydpi 295a492c3a7b2c18426fd0cb4d017eacbc368195dc5Jeff Brown && noncompatWidthPixels == other.noncompatWidthPixels 296a492c3a7b2c18426fd0cb4d017eacbc368195dc5Jeff Brown && noncompatHeightPixels == other.noncompatHeightPixels 297a492c3a7b2c18426fd0cb4d017eacbc368195dc5Jeff Brown && noncompatDensity == other.noncompatDensity 298a492c3a7b2c18426fd0cb4d017eacbc368195dc5Jeff Brown && noncompatDensityDpi == other.noncompatDensityDpi 299a492c3a7b2c18426fd0cb4d017eacbc368195dc5Jeff Brown && noncompatXdpi == other.noncompatXdpi 300a492c3a7b2c18426fd0cb4d017eacbc368195dc5Jeff Brown && noncompatYdpi == other.noncompatYdpi; 301a492c3a7b2c18426fd0cb4d017eacbc368195dc5Jeff Brown } 302a492c3a7b2c18426fd0cb4d017eacbc368195dc5Jeff Brown 303a492c3a7b2c18426fd0cb4d017eacbc368195dc5Jeff Brown @Override 304a492c3a7b2c18426fd0cb4d017eacbc368195dc5Jeff Brown public int hashCode() { 305a492c3a7b2c18426fd0cb4d017eacbc368195dc5Jeff Brown return widthPixels * heightPixels * densityDpi; 30658feea74b42bbaaa0552d76af23873bdd0b5dca2Mitsuru Oshima } 30758feea74b42bbaaa0552d76af23873bdd0b5dca2Mitsuru Oshima 30864f59342d41849bd365cb43fad7505d5e3daa417Mitsuru Oshima @Override 30958feea74b42bbaaa0552d76af23873bdd0b5dca2Mitsuru Oshima public String toString() { 31058feea74b42bbaaa0552d76af23873bdd0b5dca2Mitsuru Oshima return "DisplayMetrics{density=" + density + ", width=" + widthPixels + 31158feea74b42bbaaa0552d76af23873bdd0b5dca2Mitsuru Oshima ", height=" + heightPixels + ", scaledDensity=" + scaledDensity + 31258feea74b42bbaaa0552d76af23873bdd0b5dca2Mitsuru Oshima ", xdpi=" + xdpi + ", ydpi=" + ydpi + "}"; 31358feea74b42bbaaa0552d76af23873bdd0b5dca2Mitsuru Oshima } 3142a578ae518ff3d8a2d4768b3d190e4702509e82cDavid 'Digit' Turner 3152a578ae518ff3d8a2d4768b3d190e4702509e82cDavid 'Digit' Turner private static int getDeviceDensity() { 3162a578ae518ff3d8a2d4768b3d190e4702509e82cDavid 'Digit' Turner // qemu.sf.lcd_density can be used to override ro.sf.lcd_density 3172a578ae518ff3d8a2d4768b3d190e4702509e82cDavid 'Digit' Turner // when running in the emulator, allowing for dynamic configurations. 3182a578ae518ff3d8a2d4768b3d190e4702509e82cDavid 'Digit' Turner // The reason for this is that ro.sf.lcd_density is write-once and is 3192a578ae518ff3d8a2d4768b3d190e4702509e82cDavid 'Digit' Turner // set by the init process when it parses build.prop before anything else. 3202a578ae518ff3d8a2d4768b3d190e4702509e82cDavid 'Digit' Turner return SystemProperties.getInt("qemu.sf.lcd_density", 321a53b828635fce8b6b2d3e3377d74d72070056623Dianne Hackborn SystemProperties.getInt("ro.sf.lcd_density", DENSITY_DEFAULT)); 3222a578ae518ff3d8a2d4768b3d190e4702509e82cDavid 'Digit' Turner } 3239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 324