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getSize()给我错误
EN

Stack Overflow用户
提问于 2012-03-11 18:03:38
回答 7查看 15.4K关注 0票数 17

当我实现时

代码语言:javascript
复制
WindowManager wm = ((WindowManager)context.getSystemService(context.WINDOW_SERVICE));
Display display = wm.getDefaultDisplay();
m_nDisplayWidth = display.getWidth();
m_nDisplayHeight    = display.getHeight();

我可以运行得很好,但是当我实现getSize时,我得到的是runtimeError

代码语言:javascript
复制
Point size = new Point();
display.getSize(size); //Error right here
m_nDisplayWidth = size.x;
m_nDisplayHeight = size.y;

Logcat:

代码语言:javascript
复制
03-11 01:45:25.865: E/AndroidRuntime(18835): FATAL EXCEPTION: main 
03-11 01:45:25.865: E/AndroidRuntime(18835): android.view.InflateException: Binary XML file line #7: Error inflating class com.brain.development.GameRun
03-11 01:45:25.865: E/AndroidRuntime(18835):    at android.view.LayoutInflater.createView(LayoutInflater.java:518)
03-11 01:45:25.865: E/AndroidRuntime(18835):    at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:570)
03-11 01:45:25.865: E/AndroidRuntime(18835):    at android.view.LayoutInflater.rInflate(LayoutInflater.java:623)
03-11 01:45:25.865: E/AndroidRuntime(18835):    at android.view.LayoutInflater.inflate(LayoutInflater.java:408)
03-11 01:45:25.865: E/AndroidRuntime(18835):    at android.view.LayoutInflater.inflate(LayoutInflater.java:320) 
03-11 01:45:25.865: E/AndroidRuntime(18835):    at android.view.LayoutInflater.inflate(LayoutInflater.java:276) 
03-11 01:45:25.865: E/AndroidRuntime(18835):    at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:215) 
03-11 01:45:25.865: E/AndroidRuntime(18835):    at android.app.Activity.setContentView(Activity.java:1679) 
03-11 01:45:25.865: E/AndroidRuntime(18835):    at com.brain.development.BrainDevelopmentActivity$1.onClick(BrainDevelopmentActivity.java:25) 03-11 01:45:25.865: E/AndroidRuntime(18835):  at android.view.View.performClick(View.java:2582) 
03-11 01:45:25.865: E/AndroidRuntime(18835):    at android.view.View$PerformClick.run(View.java:9252) 
03-11 01:45:25.865: E/AndroidRuntime(18835):    at android.os.Handler.handleCallback(Handler.java:587) 
03-11 01:45:25.865: E/AndroidRuntime(18835):    at android.os.Handler.dispatchMessage(Handler.java:92) 
03-11 01:45:25.865: E/AndroidRuntime(18835):    at android.os.Looper.loop(Looper.java:130) 03-11 01:45:25.865: E/AndroidRuntime(18835):     at android.app.ActivityThread.main(ActivityThread.java:3691) 
03-11 01:45:25.865: E/AndroidRuntime(18835):    at java.lang.reflect.Method.invokeNative(Native Method) 
03-11 01:45:25.865: E/AndroidRuntime(18835):    at java.lang.reflect.Method.invoke(Method.java:507) 
03-11 01:45:25.865: E/AndroidRuntime(18835):    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:907) 
03-11 01:45:25.865: E/AndroidRuntime(18835):    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:665) 
03-11 01:45:25.865: E/AndroidRuntime(18835):    at dalvik.system.NativeStart.main(Native Method) 
03-11 01:45:25.865: E/AndroidRuntime(18835): Caused by: java.lang.reflect.InvocationTargetException 
03-11 01:45:25.865: E/AndroidRuntime(18835):    at java.lang.reflect.Constructor.constructNative(Native Method) 
03-11 01:45:25.865: E/AndroidRuntime(18835):    at java.lang.reflect.Constructor.newInstance(Constructor.java:415) 
03-11 01:45:25.865: E/AndroidRuntime(18835):    at android.view.LayoutInflater.createView(LayoutInflater.java:505) 
03-11 01:45:25.865: E/AndroidRuntime(18835):    ... 19 more 
03-11 01:45:25.865: E/AndroidRuntime(18835): Caused by: java.lang.NoSuchMethodError: android.view.Display.getSize 
03-11 01:45:25.865: E/AndroidRuntime(18835):    at com.brain.development.GameRun$GameThread.<init>(GameRun.java:46) 
03-11 01:45:25.865: E/AndroidRuntime(18835):    at com.brain.development.GameRun.<init>(GameRun.java:97) 
03-11 01:45:25.865: E/AndroidRuntime(18835):    ... 22 more
EN

回答 7

Stack Overflow用户

回答已采纳

发布于 2012-05-12 21:24:24

这既支持旧设备,也支持新设备:

代码语言:javascript
复制
private static Point getDisplaySize(final Display display) {
    final Point point = new Point();
    try {
        display.getSize(point);
    } catch (java.lang.NoSuchMethodError ignore) { // Older device
        point.x = display.getWidth();
        point.y = display.getHeight();
    }
    return point;
}
票数 70
EN

Stack Overflow用户

发布于 2012-11-22 23:14:18

方法来获取所有设备的显示大小:

代码语言:javascript
复制
private static Point getDisplaySize(final Display display) {
    Point point = new Point();
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB_MR2) { // API LEVEL 13
        display.getSize(point);
    } else {    
        point.x = display.getWidth();
        point.y = display.getHeight();
    }
    return point;
}

gettin大小:

代码语言:javascript
复制
WindowManager wm = ((WindowManager)context.getSystemService(context.WINDOW_SERVICE));
Display display = wm.getDefaultDisplay();
Point myPoint = getDisplaySize(display);    
Log.i("***Size X::", String.valueOf(myPoint.x));
Log.i("***Size Y::", String.valueOf(myPoint.y));
票数 4
EN

Stack Overflow用户

发布于 2013-10-06 15:54:56

此版本也适用于API < 4:

代码语言:javascript
复制
@SuppressWarnings("deprecation")
@TargetApi(VERSION_CODES.HONEYCOMB_MR2)
public static Point getSize(Display display) {
    Point point = new Point();
    if (sdkInt() >= VERSION_CODES.HONEYCOMB_MR2) {
        display.getSize(point);
    } else {
        point.set(display.getWidth(), display.getHeight());
    }
    return point;
}

@SuppressWarnings("deprecation")
public static int sdkInt() {
    return Integer.parseInt(VERSION.SDK);
}
票数 2
EN
页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接:

https://stackoverflow.com/questions/9654016

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