第一种。
Rect frame = new Rect();
getWindow().getDecorView().getWindowVisibleDisplayFrame(frame);
if (frame.top == 0) {
//tablet
} else {
//phone
}
这种要在onCreate走完之后才可以获取。而且不适合设置全屏的项目。
第二种。
public boolean isTablet(Context context) {
boolean xlarge = ((context.getResources().getConfiguration().screenLayout & Configuration.SCREENLAYOUT_SIZE_MASK) == 4);
boolean large = ((context.getResources().getConfiguration().screenLayout & Configuration.SCREENLAYOUT_SIZE_MASK) == Configuration.SCREENLAYOUT_SIZE_LARGE);
return (xlarge || large);
}
这种除了个别厂商做得特别恶心的设备，都可以判断。
第三种。
File res/values/screen.xml (assuming res/layout/ contains your layout files for handsets) <?xml version="1.0" encoding="utf-8"?>
<resources>
<string name="screen_type">phone</string>
</resources> File res/values-sw600dp/screen.xml (assuming res/layout-sw600dp/ contains your layout files for small tablets like the Nexus 7) <?xml version="1.0" encoding="utf-8"?>
<resources>
<string name="screen_type">7-inch-tablet</string>
</resources> File res/values-sw720dp/screen.xml (assuming res/layout-sw720dp/ contains your layout files for large tablets like the Nexus 10): <?xml version="1.0" encoding="utf-8"?>
<resources>
<string name="screen_type">10-inch-tablet</string>
</resources>
简单解释下：在res不同的values下创建不同的screen.xml,这样在不同的设备上取出的String值就不同了，这种比较好用，除了三星某超大屏机器。。。
第四种。
/**
* Checks if the device is a tablet or a phone
*
* @param activityContext
* The Activity Context.
* @return Returns true if the device is a Tablet
*/
public static boolean isTabletDevice(Context activityContext) {
// Verifies if the Generalized Size of the device is XLARGE to be
// considered a Tablet
boolean xlarge = ((activityContext.getResources().getConfiguration().screenLayout &
Configuration.SCREENLAYOUT_SIZE_MASK) ==
Configuration.SCREENLAYOUT_SIZE_XLARGE); // If XLarge, checks if the Generalized Density is at least MDPI
// (160dpi)
if (xlarge) {
DisplayMetrics metrics = new DisplayMetrics();
Activity activity = (Activity) activityContext;
activity.getWindowManager().getDefaultDisplay().getMetrics(metrics); // MDPI=160, DEFAULT=160, DENSITY_HIGH=240, DENSITY_MEDIUM=160,
// DENSITY_TV=213, DENSITY_XHIGH=320
if (metrics.densityDpi == DisplayMetrics.DENSITY_DEFAULT
|| metrics.densityDpi == DisplayMetrics.DENSITY_HIGH
|| metrics.densityDpi == DisplayMetrics.DENSITY_MEDIUM
|| metrics.densityDpi == DisplayMetrics.DENSITY_TV
|| metrics.densityDpi == DisplayMetrics.DENSITY_XHIGH) { // Yes, this is a tablet!
return true;
}
} // No, this is not a tablet!
return false;
}
和第二种类似，通过屏幕分辨率和像素密度，（貌似）判断的更细一些。。。。
第五种。
TelephonyManager manager = (TelephonyManager)context.getSystemService(Context.TELEPHONY_SERVICE);
if(manager.getPhoneType() == TelephonyManager.PHONE_TYPE_NONE){
return "Tablet";
}else{
return "Mobile";
}
这种除了某些pad可以打电话的(貌似不少)，都可以。。。
大概这几个比较可行，没有太好的方案暂时，求讨论求指导。。。。