无法在Android中显示图表 [英] Unable to show graphs in android
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问题描述
我想在android中使用achartengine库创建一个图表。
运行一个模拟器后，它只显示抱歉你的应用程序意外关闭.try again.force关闭
I am trying to create a graph in android using achartengine library. After getting run of an emulator its just showing "sorry your app unexpectedly closed.try again.force close"
一个疑问只有在Manifest.xml文件，是我的清单文件wight？如果不请请让我清楚。
I have a doubt only on Manifest.xml file, is my manifest file wight?if not please make me clear.
请找到我的源，manifest.xml和logcat
Please find my sources,manifest.xml and logcat for reference
LOGCAT
08-22 11:47:05.763: D/AndroidRuntime(537): Shutting down VM
08-22 11:47:05.775: W/dalvikvm(537): threadid=1: thread exiting with uncaught exception (group=0x4001d800)
08-22 11:47:05.783: E/AndroidRuntime(537): FATAL EXCEPTION: main
08-22 11:47:05.783: E/AndroidRuntime(537): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.graphs_test/com.example.graphs_test.MainActivity}: android.content.ActivityNotFoundException: Unable to find explicit activity class {com.example.graphs_test/org.achartengine.GraphicalActivity}; have you declared this activity in your AndroidManifest.xml?
08-22 11:47:05.783: E/AndroidRuntime(537): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2663)
08-22 11:47:05.783: E/AndroidRuntime(537): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2679)
08-22 11:47:05.783: E/AndroidRuntime(537): at android.app.ActivityThread.access$2300(ActivityThread.java:125)
08-22 11:47:05.783: E/AndroidRuntime(537): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2033)
08-22 11:47:05.783: E/AndroidRuntime(537): at android.os.Handler.dispatchMessage(Handler.java:99)
08-22 11:47:05.783: E/AndroidRuntime(537): at android.os.Looper.loop(Looper.java:123)
08-22 11:47:05.783: E/AndroidRuntime(537): at android.app.ActivityThread.main(ActivityThread.java:4627)
08-22 11:47:05.783: E/AndroidRuntime(537): at java.lang.reflect.Method.invokeNative(Native Method)
08-22 11:47:05.783: E/AndroidRuntime(537): at java.lang.reflect.Method.invoke(Method.java:521)
08-22 11:47:05.783: E/AndroidRuntime(537): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868)
08-22 11:47:05.783: E/AndroidRuntime(537): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626)
08-22 11:47:05.783: E/AndroidRuntime(537): at dalvik.system.NativeStart.main(Native Method)
08-22 11:47:05.783: E/AndroidRuntime(537): Caused by: android.content.ActivityNotFoundException: Unable to find explicit activity class {com.example.graphs_test/org.achartengine.GraphicalActivity}; have you declared this activity in your AndroidManifest.xml?
08-22 11:47:05.783: E/AndroidRuntime(537): at android.app.Instrumentation.checkStartActivityResult(Instrumentation.java:1404)
08-22 11:47:05.783: E/AndroidRuntime(537): at android.app.Instrumentation.execStartActivity(Instrumentation.java:1378)
08-22 11:47:05.783: E/AndroidRuntime(537): at android.app.Activity.startActivityForResult(Activity.java:2817)
08-22 11:47:05.783: E/AndroidRuntime(537): at android.app.Activity.startActivity(Activity.java:2923)
08-22 11:47:05.783: E/AndroidRuntime(537): at com.example.graphs_test.MainActivity.onCreate(MainActivity.java:21)
08-22 11:47:05.783: E/AndroidRuntime(537): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047)
08-22 11:47:05.783: E/AndroidRuntime(537): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2627)
08-22 11:47:05.783: E/AndroidRuntime(537): ... 11 more
Manifest.xml
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.graphs_test"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="8"
android:targetSdkVersion="15" />
<application
android:icon="@drawable/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme" >
<activity
android:name=".MainActivity"
android:label="@string/title_activity_main" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
</manifest>
MainActivity.java
public class MainActivity extends Activity {
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Intent intent = buildIntent();
startActivity(intent);
}
public Intent buildIntent() {
int[] values = new int[] { 5, 15, 25, 50, 75 };
String[] bars = new String[] {"Francesca's", "King of Clubs",
"Zen Lounge", "Tied House", "Molly Magees"};
int[] colors = new int[] { Color.BLUE, Color.GREEN, Color.MAGENTA,
Color.YELLOW, Color.CYAN };
CategorySeries series = new CategorySeries("Pie Chart");
DefaultRenderer dr = new DefaultRenderer();
for (int v=0; v<5; v++){
series.add(bars[v], values[v]);
SimpleSeriesRenderer r = new SimpleSeriesRenderer();
r.setColor(colors[v]);
dr.addSeriesRenderer(r);
}
dr.setZoomButtonsVisible(true);
dr.setZoomEnabled(true);
dr.setChartTitleTextSize(20);
return ChartFactory.getPieChartIntent(
this, series, dr, "Pie of bars");
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.activity_main, menu);
return true;
}
}
感谢您的宝贵时间！ >
Thanks for your precious time!..
推荐答案
org.achartengine.GraphicalActivity
将以下行添加到您的 project.properties 文件中以启用清单的自动合并。
Add the following line to your project.properties file to enable automatic merging of manifests.
manifestmerger.enabled=true
编辑：
我认为achartengine是一个图书馆计划。
I thought achartengine was a library project. Turns out it's a JAR.
您需要将活动添加到您的清单：
You need to add the activity to your manifest:
<activity android:name="org.achartengine.GraphicalActivity" />
这篇关于无法在Android中显示图表的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
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