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我正在使用 MyGauge 的自定义视图类和 RadialGauge 的自定义类导入。下面是我的课程代码。

import java.awt.Color;
import java.io.IOException;
import android.content.Context;
import android.graphics.Canvas;
import android.util.AttributeSet;
import android.util.Log;
import android.view.View;
import com.softwarefx.chartfx.gauge.FileFormat;
import com.softwarefx.chartfx.gauge.GaugeFont;
import com.softwarefx.chartfx.gauge.GaugeFontSize;
import com.softwarefx.chartfx.gauge.LayoutTarget;
import com.softwarefx.chartfx.gauge.Needle;
import com.softwarefx.chartfx.gauge.NeedleStyle;
import com.softwarefx.chartfx.gauge.RadialBorderStyle;
import com.softwarefx.chartfx.gauge.RadialCapStyle;
import com.softwarefx.chartfx.gauge.RadialGauge;
import com.softwarefx.chartfx.gauge.RangeType;
import com.softwarefx.chartfx.gauge.Section;
import com.softwarefx.chartfx.gauge.TickmarkStyle;
import com.softwarefx.chartfx.gauge.Title;
public class MyGauge extends View 
{

RadialGauge gauge;

public MyGauge(Context context, AttributeSet attrs) 
{
    super(context, attrs);
    // TODO Auto-generated constructor stub
    init();
}


public MyGauge(Context context)
{
    super(context);
    init();
}

public MyGauge(Context context, AttributeSet attrs, int defStyle) 
{
    super(context, attrs, defStyle);
    init();
}



public void init()
{
gauge = new RadialGauge();

//gauge.setBackColor = java.awt.Color.white;
gauge.getBorder().setColor(new java.awt.Color(230, 232, 250));  // Color Silver
Log.d("iiiiiiiiiiiiiiiii", "iiiiiiiiiiiii"+gauge);
gauge.getBorder().setGlare(true);
gauge.getBorder().setInsideColor(java.awt.Color.black) ;
gauge.getBorder().setStyle(RadialBorderStyle.getSemiCircularBorder07());
gauge.getBorder().setGlare(false);

//Setting the MainScale
gauge.getMainScale().setMax(300);

//Setting first Section
Section section1 = new Section();
section1.setMin(210);
section1.setMax(270);
section1.getBar().setColor(Color.yellow);
section1.getTickmarks().setColor(Color.white);
gauge.getMainScale().getSections().add(section1);

//Setting second Section
section1 = new Section();
section1.setMin(270);
section1.setMax(300);
section1.getBar().setColor(Color.red);
section1.getTickmarks().setColor(Color.white);
gauge.getMainScale().getSections().add(section1);

gauge.getMainScale().getBar().setVisible(false);

gauge.getMainScale().getCap().setStyle(RadialCapStyle.getRotatingCap02());
gauge.getMainScale().getCap().setColor(Color.darkGray);

Needle needle1 =(Needle) gauge.getMainIndicator();
needle1.setStyle(NeedleStyle.getNeedle10());
needle1.setUseRangeColor(RangeType.SECTION);
needle1.setValue("240");

gauge.getMainScale().getTickmarks().getMajor().setColor(Color.darkGray);
gauge.getMainScale().getTickmarks().getMajor().getLabel().setFont(new GaugeFont("Tahoma", GaugeFontSize.SMALLER, java.awt.Font.BOLD));
gauge.getMainScale().getTickmarks().getMajor().getLabel().setColor(Color.white);
gauge.getMainScale().getTickmarks().getMajor().setStep(30);
gauge.getMainScale().getTickmarks().getMajor().setStyle(TickmarkStyle.getTickmark01_2());
gauge.getMainScale().getTickmarks().getMedium().setColor(new java.awt.Color(230, 232, 250));  // Color Silver
gauge.getMainScale().getTickmarks().getMinor().setColor(Color.gray);

//Setting the titles:

Title title1 = new Title();
title1.setText("PSI");
title1.setColor(new java.awt.Color(211, 211, 211));  // Color LightGray
title1.setFont(new GaugeFont("Tahoma", GaugeFontSize.SMALLER, java.awt.Font.BOLD));
title1.getLayout().setTarget(LayoutTarget.ANCHOR_POINT);
title1.getLayout().getAnchorPoint().setLocation(0,0.225);
gauge.getTitles().add(title1);

gauge.setWidth(320);
gauge.setHeight(350);
gauge.setToolTipEnabled(false);
gauge.renderControl();
try {
    gauge.exportGauge(FileFormat.XML, "file:///assets/image.bmp");
} catch (IOException e) {
    Log.d("nnnnnnnnnnnnnnnnnn", "nnnnnnnnn"+gauge);
    // TODO Auto-generated catch block
    e.printStackTrace();
}
}
}

XML文件中的自定义视图代码如下：

   <LinearLayout android:id="@+id/gauge"
   android:layout_height="wrap_content"
   android:layout_width="fill_parent"
   android:layout_below="@id/valrow2">

   <view class="com.example.gaugesystems.MyGauge"
       android:id="@+id/gview"
       android:layout_width="fill_parent"
       android:layout_height="wrap_content" />

 </LinearLayout>

我在应用程序崩溃的 xml 中收到错误，因为“错误膨胀类 com.example.gaugesystems.MyGauge”。任何人都可以请帮助为什么会发生这种情况..

编辑：下面是Logcat：

01-15 12:32:56.515: E/AndroidRuntime(14795): FATAL EXCEPTION: main
01-15 12:32:56.515: E/AndroidRuntime(14795): java.lang.RuntimeException: Unable to start activity     ComponentInfo{com.example.gaugesystems/com.example.gaugesystems.MyViewStatus}: android.view.InflateException: Binary XML file line #128: Error inflating class com.example.gaugesystems.MyGauge
01-15 12:32:56.515: E/AndroidRuntime(14795):    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2100)
01-15 12:32:56.515: E/AndroidRuntime(14795):    at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2125)
01-15 12:32:56.515: E/AndroidRuntime(14795):    at android.app.ActivityThread.access$600(ActivityThread.java:140)
01-15 12:32:56.515: E/AndroidRuntime(14795):    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1227)
01-15 12:32:56.515: E/AndroidRuntime(14795):    at android.os.Handler.dispatchMessage(Handler.java:99)
01-15 12:32:56.515: E/AndroidRuntime(14795):    at     android.os.Looper.loop(Looper.java:137)
01-15 12:32:56.515: E/AndroidRuntime(14795):    at android.app.ActivityThread.main(ActivityThread.java:4898)
01-15 12:32:56.515: E/AndroidRuntime(14795):    at java.lang.reflect.Method.invokeNative(Native Method)
01-15 12:32:56.515: E/AndroidRuntime(14795):    at java.lang.reflect.Method.invoke(Method.java:511)
01-15 12:32:56.515: E/AndroidRuntime(14795):    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1006)
01-15 12:32:56.515: E/AndroidRuntime(14795):    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:773)
01-15 12:32:56.515: E/AndroidRuntime(14795):    at dalvik.system.NativeStart.main(Native Method)
01-15 12:32:56.515: E/AndroidRuntime(14795): Caused by: android.view.InflateException: Binary XML file line #128: Error inflating class com.example.gaugesystems.MyGauge
01-15 12:32:56.515: E/AndroidRuntime(14795):    at android.view.LayoutInflater.createView(LayoutInflater.java:613)
01-15 12:32:56.515: E/AndroidRuntime(14795):    at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:687)
01-15 12:32:56.515: E/AndroidRuntime(14795):    at android.view.LayoutInflater.rInflate(LayoutInflater.java:746)
01-15 12:32:56.515: E/AndroidRuntime(14795):    at android.view.LayoutInflater.rInflate(LayoutInflater.java:749)
01-15 12:32:56.515: E/AndroidRuntime(14795):    at android.view.LayoutInflater.inflate(LayoutInflater.java:489)
01-15 12:32:56.515: E/AndroidRuntime(14795):    at android.view.LayoutInflater.inflate(LayoutInflater.java:396)
01-15 12:32:56.515: E/AndroidRuntime(14795):    at android.view.LayoutInflater.inflate(LayoutInflater.java:352)
01-15 12:32:56.515: E/AndroidRuntime(14795):    at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:306)
01-15 12:32:56.515: E/AndroidRuntime(14795):    at android.app.Activity.setContentView(Activity.java:1916)
01-15 12:32:56.515: E/AndroidRuntime(14795):    at com.example.gaugesystems.MyViewStatus.onCreate(MyViewStatus.java:21)
01-15 12:32:56.515: E/AndroidRuntime(14795):    at android.app.Activity.performCreate(Activity.java:5184)
01-15 12:32:56.515: E/AndroidRuntime(14795):    at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1083)
01-15 12:32:56.515: E/AndroidRuntime(14795):    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2064)
01-15 12:32:56.515: E/AndroidRuntime(14795):    ... 11 more
01-15 12:32:56.515: E/AndroidRuntime(14795): Caused by: java.lang.reflect.InvocationTargetException
01-15 12:32:56.515: E/AndroidRuntime(14795):    at java.lang.reflect.Constructor.constructNative(Native Method)
01-15 12:32:56.515: E/AndroidRuntime(14795):    at java.lang.reflect.Constructor.newInstance(Constructor.java:417)
01-15 12:32:56.515: E/AndroidRuntime(14795):    at android.view.LayoutInflater.createView(LayoutInflater.java:587)
01-15 12:32:56.515: E/AndroidRuntime(14795):    ... 23 more
01-15 12:32:56.515: E/AndroidRuntime(14795): Caused by: java.lang.ExceptionInInitializerError
01-15 12:32:56.515: E/AndroidRuntime(14795):    at com.softwarefx.chartfx.gauge.RadialGauge.<init>(Unknown Source)
01-15 12:32:56.515: E/AndroidRuntime(14795):    at com.example.gaugesystems.MyGauge.init(MyGauge.java:55)
01-15 12:32:56.515: E/AndroidRuntime(14795):    at com.example.gaugesystems.MyGauge.<init>(MyGauge.java:36)
01-15 12:32:56.515: E/AndroidRuntime(14795):    ... 26 more
01-15 12:32:56.515: E/AndroidRuntime(14795): Caused by: java.lang.ExceptionInInitializerError
01-15 12:32:56.515: E/AndroidRuntime(14795):    at ChartFX.internal.WebForms.Gauge.BaseGauge.<clinit>(Unknown Source)
01-15 12:32:56.515: E/AndroidRuntime(14795):    ... 29 more
01-15 12:32:56.515: E/AndroidRuntime(14795): Caused by: java.lang.NoClassDefFoundError: java.awt.Color
01-15 12:32:56.515: E/AndroidRuntime(14795):    at SfxNETGauges.System.Drawing.Color.<clinit>(Unknown Source)
01-15 12:32:56.515: E/AndroidRuntime(14795):    ... 30 more
4

2 回答 2

0

以下看起来很可疑：

   <view class="com.example.gaugesystems.MyGauge"

当我使用自定义视图对象时，我使用以下语法：

   <com.example.gaugesystems.MyGauge ...>

不确定这是否是问题，但应该很快尝试。

于 2013-01-15T06:47:19.177 回答
0

根据 logcat 的说法，它似乎ChartFX.internal.WebForms.Gauge.BaseGauge试图创建 的静态实例java.awt.Color，但 JVM 无法加载后者，所以它抛出java.lang.NoClassDefFoundError.

编辑：看起来 Software FX 的库已移植到 Android： http: //www.softwarefx.com/mobile/pgm/clients/android.aspx。我认为你应该使用这个。另一方面，您可以切换到开源仪表库，例如http://android.codeandmagic.org/2012/08/android-gaugeview-library/。

于 2013-01-15T07:37:52.627 回答