我创建了一个应用程序，我想查看图表。但是当我点击指定的按钮时，应用程序停止了.. 代码如下..：
BloodSugarChart2.java
package com.example.app;
import org.achartengine.ChartFactory;
import org.achartengine.chart.BarChart.Type;
import org.achartengine.model.XYMultipleSeriesDataset;
import org.achartengine.model.XYSeries;
import org.achartengine.renderer.XYMultipleSeriesRenderer;
import org.achartengine.renderer.XYSeriesRenderer;
import android.app.Activity;
import android.content.Intent;
import android.graphics.Color;
import android.os.Bundle;
import android.view.Menu;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
public class BloodSugarChart2 extends Activity
{
private String[] mMonth = new String[] {
"Jan-10-14", "Jan-11-14" , "Jan-12-14", "Jan-13-14", "Jan-14-14", "Jan-15-14",
"Jan-16-14", "Jan-17-14" , "Jan-18-14", "Jan-19-14", "Jan-20-14", "Jan-21-14"
};
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.blood_sugar_chart2);
// Getting reference to the button btn_chart
Button btnChart = (Button) findViewById(R.id.btn_chart);
// Defining click event listener for the button btn_chart
OnClickListener clickListener = new OnClickListener() {
@Override
public void onClick(View v) {
// Draw the Income vs Expense Chart
openChart();
}
};
// Setting event click listener for the button btn_chart of the MainActivity layout
btnChart.setOnClickListener(clickListener);
}
private void openChart(){
int[] x = { 0,1,2,3,4,5,6,7 };
int[] BloodSugar = { 2000,2500,2700,3000,2800,3500,3700,3800};
// Creating an XYSeries for Income
//CategorySeries incomeSeries = new CategorySeries("Income");
XYSeries BloodSugarSeries = new XYSeries("Blood Sugar");
// Creating an XYSeries for Income
// Adding data to Income and Expense Series
for(int i=0;i<x.length;i++){
BloodSugarSeries.add(i,BloodSugar[i]);
}
// Creating a dataset to hold each series
XYMultipleSeriesDataset dataset = new XYMultipleSeriesDataset();
// Adding Income Series to the dataset
dataset.addSeries(BloodSugarSeries);
// Adding Expense Series to dataset
// Creating XYSeriesRenderer to customize incomeSeries
XYSeriesRenderer BloodSugarRenderer = new XYSeriesRenderer();
BloodSugarRenderer.setColor(Color.GREEN);
BloodSugarRenderer.setChartValuesSpacing((float) 0.5);
BloodSugarRenderer.setFillPoints(true);
BloodSugarRenderer.setLineWidth(2);
BloodSugarRenderer.setDisplayChartValues(true);
// Creating a XYMultipleSeriesRenderer to customize the whole chart
XYMultipleSeriesRenderer multiRenderer = new XYMultipleSeriesRenderer();
multiRenderer.setXLabels(0);
multiRenderer.setBarSpacing(1);
multiRenderer.setChartTitle("Blood Sugar Progress Analysis Report");
/*multiRenderer.setXTitle("Year 2012");*/
multiRenderer.setYTitle("Blood Sugar in mg/dL");
multiRenderer.setZoomButtonsVisible(true);
for(int i=0; i< x.length;i++){
multiRenderer.addXTextLabel(i, mMonth[i]);
}
// Adding incomeRenderer and expenseRenderer to multipleRenderer
// Note: The order of adding dataseries to dataset and renderers to multipleRenderer
// should be same
multiRenderer.addSeriesRenderer(BloodSugarRenderer);
// Creating an intent to plot bar chart using dataset and multipleRenderer
Intent intent = ChartFactory.getBarChartIntent(getBaseContext(), dataset, multiRenderer, Type.DEFAULT);
// Start Activity
startActivity(intent);
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.blood_sugar_chart2, menu);
return true;
}
}
blood_sugar_chart2.xml
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent" >
<Button
android:id="@+id/btn_chart"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:layout_centerVertical="true"
android:text="@string/str_btn_chart"
tools:context=".MainActivity" />
</RelativeLayout>
Manifestfile.xml
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.app"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="8"
android:targetSdkVersion="19" />
<application
android:allowBackup="true"
android:icon="@drawable/ic_launcher"
android:label="@string/app_name"
android:theme="@style/Theme.AppCompat" >
<activity
android:name="com.example.app.TabBar"
android:label="@string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity android:name="com.example.app.Tab1" >
</activity>
<activity android:name="com.example.app.Tab2" >
</activity>
<activity android:name="com.example.app.Tab3" >
</activity>
<activity
android:name="com.example.app.Person"
android:label="@string/title_activity_person" >
</activity>
<activity
android:name="com.example.app.History"
android:label="@string/title_activity_history" >
</activity>
<activity
android:name="com.example.app.Medications"
android:label="@string/title_activity_medications" >
</activity>
<activity
android:name="com.example.app.AddMedRecords"
android:label="@string/title_activity_add_med_records" >
</activity>
<activity
android:name="com.example.app.OfficeVisit"
android:label="@string/title_activity_office_visit" >
</activity>
<activity
android:name="com.example.app.AddOfficeVisit"
android:label="@string/title_activity_add_office_visit" >
</activity>
<activity
android:name="com.example.app.OfficeInfo"
android:label="@string/title_activity_office_info" >
</activity>
<activity
android:name="com.example.app.AddOfficeInfo"
android:label="@string/title_activity_add_office_info" >
</activity>
<activity
android:name="com.example.app.OfficeInfoExtraDetails"
android:label="@string/title_activity_office_info_extra_details" >
</activity>
<activity android:name="com.example.app.AddPerson" >
</activity>
<activity
android:name="com.example.app.RenamePerson"
android:label="@string/title_activity_rename_person" >
</activity>
<activity
android:name="com.example.app.Weight"
android:label="@string/title_activity_weight" >
</activity>
<activity
android:name="com.example.app.WeightInfo"
android:label="@string/title_activity_weight_info" >
</activity>
<activity
android:name="com.example.app.BloodPressure"
android:label="@string/title_activity_blood_pressure" >
</activity>
<activity
android:name="com.example.app.AddBloodPressureInfo"
android:label="@string/title_activity_add_blood_pressure_info" >
</activity>
<activity
android:name="com.example.app.BloodSugarCharts"
android:label="@string/title_activity_blood_sugar_charts" >
</activity>
<activity
android:name="com.example.app.BloodSugar"
android:label="@string/title_activity_blood_sugar" >
</activity>
<activity
android:name="com.example.app.AddHistory"
android:label="@string/title_activity_add_history" >
</activity>
<activity
android:name="com.example.app.LabAndTestResults"
android:label="@string/title_activity_lab_and_test_results" >
</activity>
<activity
android:name="com.example.app.AddLabTestResult"
android:label="@string/title_activity_add_lab_test_result" >
</activity>
<activity android:name="com.example.app.DataAnalysis" >
</activity>
<activity
android:name="com.example.app.Welcome"
android:label="@string/title_activity_welcome" >
</activity>
<activity
android:name="com.example.app.SimpleListActivity"
android:label="@string/title_activity_simple_list" >
</activity>
<activity
android:name="com.example.app.WeightCharts"
android:label="@string/title_activity_weight_charts" >
</activity>
<activity
android:name="com.example.app.BMICharts"
android:label="@string/title_activity_bmicharts" >
</activity>
<activity
android:name="com.example.app.BloodSugarChart2"
android:label="@string/title_activity_blood_sugar_chart2" >
</activity>
</application>
</manifest>
logcat的
06-30 01:15:43.380: E/AndroidRuntime(795): FATAL EXCEPTION: main
06-30 01:15:43.380: E/AndroidRuntime(795): Process: com.example.app, PID: 795
06-30 01:15:43.380: E/AndroidRuntime(795): android.content.ActivityNotFoundException: Unable to find explicit activity class {com.example.app/org.achartengine.GraphicalActivity}; have you declared this activity in your AndroidManifest.xml?
06-30 01:15:43.380: E/AndroidRuntime(795): at android.app.Instrumentation.checkStartActivityResult(Instrumentation.java:1628)
06-30 01:15:43.380: E/AndroidRuntime(795): at android.app.Instrumentation.execStartActivity(Instrumentation.java:1424)
06-30 01:15:43.380: E/AndroidRuntime(795): at android.app.Activity.startActivityForResult(Activity.java:3424)
06-30 01:15:43.380: E/AndroidRuntime(795): at android.app.Activity.startActivityForResult(Activity.java:3385)
06-30 01:15:43.380: E/AndroidRuntime(795): at android.app.Activity.startActivity(Activity.java:3627)
06-30 01:15:43.380: E/AndroidRuntime(795): at android.app.Activity.startActivity(Activity.java:3595)
06-30 01:15:43.380: E/AndroidRuntime(795): at com.example.app.BloodSugarChart2.openChart(BloodSugarChart2.java:110)
06-30 01:15:43.380: E/AndroidRuntime(795): at com.example.app.BloodSugarChart2.access$0(BloodSugarChart2.java:47)
06-30 01:15:43.380: E/AndroidRuntime(795): at com.example.app.BloodSugarChart2$1.onClick(BloodSugarChart2.java:38)
06-30 01:15:43.380: E/AndroidRuntime(795): at android.view.View.performClick(View.java:4438)
06-30 01:15:43.380: E/AndroidRuntime(795): at android.view.View$PerformClick.run(View.java:18422)
06-30 01:15:43.380: E/AndroidRuntime(795): at android.os.Handler.handleCallback(Handler.java:733)
06-30 01:15:43.380: E/AndroidRuntime(795): at android.os.Handler.dispatchMessage(Handler.java:95)
06-30 01:15:43.380: E/AndroidRuntime(795): at android.os.Looper.loop(Looper.java:136)
06-30 01:15:43.380: E/AndroidRuntime(795): at android.app.ActivityThread.main(ActivityThread.java:5017)
06-30 01:15:43.380: E/AndroidRuntime(795): at java.lang.reflect.Method.invokeNative(Native Method)
06-30 01:15:43.380: E/AndroidRuntime(795): at java.lang.reflect.Method.invoke(Method.java:515)
06-30 01:15:43.380: E/AndroidRuntime(795): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:779)
06-30 01:15:43.380: E/AndroidRuntime(795): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:595)
06-30 01:15:43.380: E/AndroidRuntime(795): at dalvik.system.NativeStart.main(Native Method)
我已经在ManifestFile中提到了它，然后我也面临着问题..请帮助..