获取屏幕的宽高 android,Android获取屏幕宽高的方法

1. 实现代码

private intmWidth;private intmHeight;

@TargetApi(Build.VERSION_CODES.JELLY_BEAN_MR1)public voidgetDisplayMetrics() {

WindowManager wm=(WindowManager) mContext.getSystemService(Context.WINDOW_SERVICE);

Display display=wm.getDefaultDisplay();int API_LEVEL =android.os.Build.VERSION.SDK_INT;//方法1

DisplayMetrics displayMetrics = newDisplayMetrics();if (API_LEVEL >= 17) {

display.getRealMetrics(displayMetrics);

}else{

display.getMetrics(displayMetrics);

}

mWidth=displayMetrics.widthPixels;

mHeight=displayMetrics.heightPixels;//方法2

Point outSize = newPoint();if (API_LEVEL >= 17) {

display.getRealSize(outSize);

}else{

display.getSize(outSize);

}

mWidth=outSize.x;

mHeight=outSize.y;//方法3

mWidth =mContext.getResources().getDisplayMetrics().widthPixels;

mHeight=mContext.getResources().getDisplayMetrics().heightPixels;

}

2. 说明

Display

Provides information about the size and density of a logical display.

The display area is described in two different ways.

The application display area specifies the part of the display that may contain an application window, excluding the system decorations. The application display area may be smaller than the real display area because the system subtracts the space needed for decor elements such as the status bar. Use the following methods to query the application display area:

The real display area specifies the part of the display that contains contentincluding the system decorations. Even so, the real display area may be smaller than the physical size of the display if the window manager is emulating a smaller display using (adb shell am display-size). Use the following methods to query the real display area:

3. Note

public void getRealMetrics

Gets display metrics based on the real size of this display.

The size is adjusted based on the current rotation of the display.

The real size may be smaller than the physical size of the screen when the window manager is emulating a smaller display (using adb shell am display-size).

public void getRealSize (Point outSize)

Gets the real size of the display without subtracting any window decor or applying any compatibility scale factors.

The size is adjusted based on the current rotation of the display.

The real size may be smaller than the physical size of the screen when the window manager is emulating a smaller display (using adb shell am display-size).

原文：http://www.cnblogs.com/veins/p/4208603.html