在Android中获取屏幕宽度和高度
如何获取屏幕宽度和高度,并在以下情况下使用此值:在Android中获取屏幕宽度和高度,android,Android,如何获取屏幕宽度和高度,并在以下情况下使用此值: @Override protected void onMeasure(int widthSpecId, int heightSpecId) { Log.e(TAG, "onMeasure" + widthSpecId); setMeasuredDimension(SCREEN_WIDTH, SCREEN_HEIGHT - game.findViewById(R.id.flag).getHeight()); }
@Override protected void onMeasure(int widthSpecId, int heightSpecId) {
Log.e(TAG, "onMeasure" + widthSpecId);
setMeasuredDimension(SCREEN_WIDTH, SCREEN_HEIGHT -
game.findViewById(R.id.flag).getHeight());
}
使用此代码,可以获得运行时显示的宽度和高度:
DisplayMetrics displayMetrics = new DisplayMetrics();
getWindowManager().getDefaultDisplay().getMetrics(displayMetrics);
int height = displayMetrics.heightPixels;
int width = displayMetrics.widthPixels;
在视图中,您需要执行以下操作:
((Activity) getContext()).getWindowManager()
.getDefaultDisplay()
.getMetrics(displayMetrics);
在某些情况下,如果设备具有导航栏,则必须在运行时检查:
public boolean showNavigationBar(Resources resources)
{
int id = resources.getIdentifier("config_showNavigationBar", "bool", "android");
return id > 0 && resources.getBoolean(id);
}
如果设备有导航栏,则计算其高度:
private int getNavigationBarHeight() {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR1) {
DisplayMetrics metrics = new DisplayMetrics();
getWindowManager().getDefaultDisplay().getMetrics(metrics);
int usableHeight = metrics.heightPixels;
getWindowManager().getDefaultDisplay().getRealMetrics(metrics);
int realHeight = metrics.heightPixels;
if (realHeight > usableHeight)
return realHeight - usableHeight;
else
return 0;
}
return 0;
}
因此,设备的最终高度为:
int height = displayMetrics.heightPixels + getNavigationBarHeight();
只需更新parag和SpK的答案,以与不推荐使用的方法的当前SDK向后兼容性保持一致:
int Measuredwidth = 0;
int Measuredheight = 0;
Point size = new Point();
WindowManager w = getWindowManager();
if(Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB) {
w.getDefaultDisplay().getSize(size);
Measuredwidth = size.x;
Measuredheight = size.y;
}else{
Display d = w.getDefaultDisplay();
Measuredwidth = d.getWidth();
Measuredheight = d.getHeight();
}
请尝试以下代码:-
1.
Display display = getWindowManager().getDefaultDisplay();
Point size = new Point();
display.getSize(size);
int width = size.x;
int height = size.y;
Display display = getWindowManager().getDefaultDisplay();
int width = display.getWidth(); // deprecated
int height = display.getHeight(); // deprecated
DisplayMetrics metrics = new DisplayMetrics();
getWindowManager().getDefaultDisplay().getMetrics(metrics);
metrics.heightPixels;
metrics.widthPixels;
2.
Display display = getWindowManager().getDefaultDisplay();
Point size = new Point();
display.getSize(size);
int width = size.x;
int height = size.y;
Display display = getWindowManager().getDefaultDisplay();
int width = display.getWidth(); // deprecated
int height = display.getHeight(); // deprecated
DisplayMetrics metrics = new DisplayMetrics();
getWindowManager().getDefaultDisplay().getMetrics(metrics);
metrics.heightPixels;
metrics.widthPixels;
或
3.
Display display = getWindowManager().getDefaultDisplay();
Point size = new Point();
display.getSize(size);
int width = size.x;
int height = size.y;
Display display = getWindowManager().getDefaultDisplay();
int width = display.getWidth(); // deprecated
int height = display.getHeight(); // deprecated
DisplayMetrics metrics = new DisplayMetrics();
getWindowManager().getDefaultDisplay().getMetrics(metrics);
metrics.heightPixels;
metrics.widthPixels;
为什么不呢
DisplayMetrics DisplayMetrics=getResources().getDisplayMetrics()
然后使用
displayMetrics.widthPixels(高度像素)
此处显示的方法已弃用/过时,但仍然有效。需要API 13 看看
Display disp= getWindowManager().getDefaultDisplay();
Point dimensions = new Point();
disp.getSize(size);
int width = size.x;
int height = size.y;
获取屏幕宽度和高度的值
Display display = getWindowManager().getDefaultDisplay();
Point size = new Point();
display.getSize(size);
width = size.x;
height = size.y;
public static int getWidth(Context context) {
DisplayMetrics displayMetrics = new DisplayMetrics();
Display display = context.getDisplay();
if (display != null) {
display.getRealMetrics(displayMetrics);
return displayMetrics.widthPixels;
}
return -1;
}
有一个非常简单的答案,没有背景
public static int getScreenWidth() {
return Resources.getSystem().getDisplayMetrics().widthPixels;
}
public static int getScreenHeight() {
return Resources.getSystem().getDisplayMetrics().heightPixels;
}
注意:如果希望高度包括导航栏,请使用下面的方法
WindowManager windowManager =
(WindowManager) BaseApplication.getApplication().getSystemService(Context.WINDOW_SERVICE);
final Display display = windowManager.getDefaultDisplay();
Point outPoint = new Point();
if (Build.VERSION.SDK_INT >= 19) {
// include navigation bar
display.getRealSize(outPoint);
} else {
// exclude navigation bar
display.getSize(outPoint);
}
if (outPoint.y > outPoint.x) {
mRealSizeHeight = outPoint.y;
mRealSizeWidth = outPoint.x;
} else {
mRealSizeHeight = outPoint.x;
mRealSizeWidth = outPoint.y;
}
只需使用下面的函数,它以整数数组的形式返回屏幕大小的宽度和高度
private int[] getScreenSIze(){
DisplayMetrics displaymetrics = new DisplayMetrics();
getWindowManager().getDefaultDisplay().getMetrics(displaymetrics);
int h = displaymetrics.heightPixels;
int w = displaymetrics.widthPixels;
int[] size={w,h};
return size;
}
在onCreate函数或按钮上,单击添加以下代码以输出屏幕大小,如下所示
int[] screenSize= getScreenSIze();
int width=screenSize[0];
int height=screenSize[1];
screenSizes.setText("Phone Screen sizes \n\n width = "+width+" \n Height = "+height);
以完整方式执行,返回真正的解决方案:
WindowManager wm = (WindowManager) context.getSystemService(Context.WINDOW_SERVICE);
Point size = new Point();
wm.getDefaultDisplay().getRealSize(size);
final int width = size.x, height = size.y;
由于这可能会在不同的方向上发生变化,这里有一个解决方案(在Kotlin中),无论方向如何,都可以使其正确:
/**
* returns the natural orientation of the device: Configuration.ORIENTATION_LANDSCAPE or Configuration.ORIENTATION_PORTRAIT .<br></br>
* The result should be consistent no matter the orientation of the device
*/
@JvmStatic
fun getScreenNaturalOrientation(context: Context): Int {
//based on : http://stackoverflow.com/a/9888357/878126
val windowManager = context.getSystemService(Context.WINDOW_SERVICE) as WindowManager
val config = context.resources.configuration
val rotation = windowManager.defaultDisplay.rotation
return if ((rotation == Surface.ROTATION_0 || rotation == Surface.ROTATION_180) && config.orientation == Configuration.ORIENTATION_LANDSCAPE || (rotation == Surface.ROTATION_90 || rotation == Surface.ROTATION_270) && config.orientation == Configuration.ORIENTATION_PORTRAIT)
Configuration.ORIENTATION_LANDSCAPE
else
Configuration.ORIENTATION_PORTRAIT
}
/**
* returns the natural screen size (in pixels). The result should be consistent no matter the orientation of the device
*/
@JvmStatic
fun getScreenNaturalSize(context: Context): Point {
val screenNaturalOrientation = getScreenNaturalOrientation(context)
val wm = context.getSystemService(Context.WINDOW_SERVICE) as WindowManager
val point = Point()
wm.defaultDisplay.getRealSize(point)
val currentOrientation = context.resources.configuration.orientation
if (currentOrientation == screenNaturalOrientation)
return point
else return Point(point.y, point.x)
}
[PX] screen width: 1440 , height: 2392
[DP] screen width: 360.0 , height: 598.0
[PX] physical screen width: 1440 , height: 2560
[DP] physical screen width: 360.0 , height: 640.0
[PX] screen width: 2392 , height: 1440
[DP] screen width: 598.0 , height: 360.0
[PX] physical screen width: 2560 , height: 1440
[DP] physical screen width: 640.0 , height: 360.0
/**
*返回设备的自然方向:Configuration.orientation\u横向或Configuration.orientation\u纵向。
*无论设备的方向如何,结果都应一致
*/
@JvmStatic
有趣的getScreenNaturalOrientation(上下文:context):Int{
//基于:http://stackoverflow.com/a/9888357/878126
val windowManager=context.getSystemService(context.WINDOW\u服务)作为windowManager
val config=context.resources.configuration
val rotation=windowManager.defaultDisplay.rotation
返回if((rotation==Surface.rotation|u 0 | rotation==Surface.rotation_180)和&config.orientation==Configuration.orientation_横向|(rotation==Surface.rotation_90 | rotation==Surface.rotation_270)和&config.orientation==Configuration.orientation_纵向)
配置.方向/景观
其他的
配置.方向图
}
/**
*返回自然屏幕大小(以像素为单位)。无论设备的方向如何,结果都应一致
*/
@JvmStatic
趣味getScreenNaturalSize(上下文:上下文):要点{
val screenNaturalOrientation=getScreenNaturalOrientation(上下文)
val wm=context.getSystemService(context.WINDOW\u服务)作为WindowManager
val点=点()
wm.defaultDisplay.getRealSize(点)
val currentOrientation=context.resources.configuration.orientation
如果(currentOrientation==ScreenNaturaloRitation)
返回点
else返回点(点y、点x)
}
我在本页找到了魏根的最佳答案,以下是你如何在Xamarin.Android中使用它:
public int GetScreenWidth()
{
return Resources.System.DisplayMetrics.WidthPixels;
}
public int GetScreenHeight()
{
return Resources.System.DisplayMetrics.HeightPixels;
}
屏幕分辨率是屏幕中像素的总数。以下程序将提取设备的屏幕分辨率。它将打印屏幕宽度和高度。这些值以像素为单位
public static Point getScreenResolution(Context context) {
// get window managers
WindowManager manager = (WindowManager)context.getSystemService(Context.WINDOW_SERVICE);
Display display = manager.getDefaultDisplay();
Point point = new Point();
display.getSize(point);
// get width and height
int width = point.x;
int height = point.y;
return point;
}这将与Android中的大小抽象配合使用
它包含一个类
您可以这样使用它:
ISize size = new SizeFromDisplay(getWindowManager().getDefaultDisplay());
size.width();
size.hight();
两步。首先,扩展活动类
class Example extends Activity
第二:使用这个代码
DisplayMetrics displayMetrics = new DisplayMetrics();
WindowManager windowmanager = (WindowManager) getApplicationContext().getSystemService(Context.WINDOW_SERVICE);
windowmanager.getDefaultDisplay().getMetrics(displayMetrics);
int deviceWidth = displayMetrics.widthPixels;
int deviceHeight = displayMetrics.heightPixels;
请为Kotlin尝试此代码
val display = windowManager.defaultDisplay
val size = Point()
display.getSize(size)
var DEVICE_WIDTH = size.x
var DEVICE_HEIGHT = size.y
val width: Int = context.resources.displayMetrics.widthPixels
val height: Int = context.resources.displayMetrics.heightPixels
这里没有一个答案适用于Chrome操作系统的多显示器或即将推出的可折叠显示器 查找当前配置时,请始终使用
getResources().getConfiguration()
中当前活动中的配置请勿使用后台活动或系统资源中的配置。后台活动没有大小,系统配置可能包含多个大小和方向冲突的窗口,因此无法提取可用数据
所以答案是
val config = context.getResources().getConfiguration()
val (screenWidthPx, screenHeightPx) = config.screenWidthDp.dp to config.screenHeightDp.dp
对于kotlin用户的
fun Activity.displayMetrics(): DisplayMetrics {
val displayMetrics = DisplayMetrics()
windowManager.defaultDisplay.getMetrics(displayMetrics)
return displayMetrics
}
在活动中,你可以像这样使用它
resources.displayMetrics.let { displayMetrics ->
val height = displayMetrics.heightPixels
val width = displayMetrics.widthPixels
}
还是碎片
activity?.displayMetrics()?.run {
val height = heightPixels
val width = widthPixels
}
使用Android非常容易:
int width = Resources.getSystem().getDisplayMetrics().widthPixels;
int height = Resources.getSystem().getDisplayMetrics().heightPixels;
我使用以下代码获得屏幕尺寸
getWindow().getDecorView().getWidth()
getWindow().getDecorView().getHeight()
我更新了Kotlin语言的答案
对于Kotlin:您应该调用窗口管理器并获取度量。在那简单的方法之后
val displayMetrics = DisplayMetrics()
windowManager.defaultDisplay.getMetrics(displayMetrics)
var width = displayMetrics.widthPixels
var height = displayMetrics.heightPixels
我们如何用Kotlin语言以独立活动的方式有效地使用它
在这里,我在general Kotlin类中创建了一个方法。您可以在所有活动中使用它
private val T_GET_SCREEN_WIDTH:String = "screen_width"
private val T_GET_SCREEN_HEIGHT:String = "screen_height"
private fun getDeviceSizes(activity:Activity, whichSize:String):Int{
val displayMetrics = DisplayMetrics()
activity.windowManager.defaultDisplay.getMetrics(displayMetrics)
return when (whichSize){
T_GET_SCREEN_WIDTH -> displayMetrics.widthPixels
T_GET_SCREEN_HEIGHT -> displayMetrics.heightPixels
else -> 0 // Error
}
}
在某些情况下,这可能不起作用。对于:
获取描述此文件大小和密度的显示度量
展示。此方法返回的大小不一定
表示显示器的实际原始大小(本机分辨率)
- 如果从非活动上下文(例如通过(WindowManager)的应用程序上下文)请求 getApplicationContext().getSystemService(Context.WINDOW\u服务)) metrics将根据当前数据报告整个显示的大小 旋转和减去系统装饰区域
- 如果从活动(使用getWindowManager()或(WindowManager)getSystemService(Context.WINDOW_服务)请求)生成 指标将与当前应用程序窗口指标相对应。在这种情况下,大小可以小于多窗口模式下的物理大小
class MainActivity : AppCompatActivity() {
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
setContentView(R.layout.activity_main)
val widthPx = screenRectPx.width()
val heightPx = screenRectPx.height()
println("[PX] screen width: $widthPx , height: $heightPx")
val widthDp = screenRectDp.width()
val heightDp = screenRectDp.height()
println("[DP] screen width: $widthDp , height: $heightDp")
println()
val physicalWidthPx = physicalScreenRectPx.width()
val physicalHeightPx = physicalScreenRectPx.height()
println("[PX] physical screen width: $physicalWidthPx , height: $physicalHeightPx")
val physicalWidthDp = physicalScreenRectDp.width()
val physicalHeightDp = physicalScreenRectDp.height()
println("[DP] physical screen width: $physicalWidthDp , height: $physicalHeightDp")
}
}
[PX] screen width: 1440 , height: 2392
[DP] screen width: 360.0 , height: 598.0
[PX] physical screen width: 1440 , height: 2560
[DP] physical screen width: 360.0 , height: 640.0
[PX] screen width: 2392 , height: 1440
[DP] screen width: 598.0 , height: 360.0
[PX] physical screen width: 2560 , height: 1440
[DP] physical screen width: 640.0 , height: 360.0
public static int getWidth(Context context) {
DisplayMetrics displayMetrics = new DisplayMetrics();
Display display = context.getDisplay();
if (display != null) {
display.getRealMetrics(displayMetrics);
return displayMetrics.widthPixels;
}
return -1;
}
public static int getHeight(Context context) {
DisplayMetrics displayMetrics = new DisplayMetrics();
Display display = context.getDisplay();
if (display != null) {
display.getRealMetrics(displayMetrics);
return displayMetrics.heightPixels;
}
return -1;
}
fun getWidth(context: Context): Int {
var width:Int = 0
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.R) {
val displayMetrics = DisplayMetrics()
val display: Display? = context.getDisplay()
display!!.getRealMetrics(displayMetrics)
return displayMetrics.widthPixels
}else{
val displayMetrics = DisplayMetrics()
this.windowManager.defaultDisplay.getMetrics(displayMetrics)
width = displayMetrics.widthPixels
return width
}
}
fun getHeight(context: Context): Int {
var height: Int = 0
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.R) {
val displayMetrics = DisplayMetrics()
val display = context.display
display!!.getRealMetrics(displayMetrics)
return displayMetrics.heightPixels
}else {
val displayMetrics = DisplayMetrics()
this.windowManager.defaultDisplay.getMetrics(displayMetrics)
height = displayMetrics.heightPixels
return height
}
}
@RequiresApi(api = Build.VERSION_CODES.JELLY_BEAN_MR1)
public static double getHeight() {
DisplayMetrics displayMetrics = new DisplayMetrics();
WindowManager wm = (WindowManager) context.getSystemService(Context.WINDOW_SERVICE);
Display display = wm.getDefaultDisplay();
display.getRealMetrics(displayMetrics);
//int height = displayMetrics.heightPixels;
//int width = displayMetrics.widthPixels;
return displayMetrics.heightPixels;
}
int width= context.getResources().getDisplayMetrics().widthPixels;
int height= context.getResources().getDisplayMetrics().heightPixels;
val width: Int = context.resources.displayMetrics.widthPixels
val height: Int = context.resources.displayMetrics.heightPixels