谷歌有一个关于移动设备分析数据的例子。此处提供了代码。我添加了 jar 文件，一切编译正常，但运行应用程序时出错。出于安全原因，我取出了 UA ID（不确定这是否重要）
LogCat 为我提供了以下信息：E/AndroidRuntime(1175): java.lang.NoClassDefFoundError: com.google.android.apps.analytics.GoogleAnalyticsTracker AND E/AndroidRuntime(1130):at com.google.android.apps.analytics。 sample.TestActivity.onCreate(TestActivity.java:19)
从它所说的来看，它找不到 googleAnalyticTracker？但如果它编译得很好，为什么它找不到呢？
package com.google.android.apps.analytics.sample;
import com.google.android.apps.analytics.GoogleAnalyticsTracker;
import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
public class TestActivity extends Activity {
GoogleAnalyticsTracker tracker;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
tracker = GoogleAnalyticsTracker.getInstance();
// Start the tracker in manual dispatch mode...
// tracker.startNewSession("", this);
// ...alternatively, the tracker can be started with a dispatch interval
// (in seconds).
tracker.startNewSession("", 20, this);
setContentView(R.layout.main);
Button createEventButton = (Button) findViewById(R.id.NewEventButton);
createEventButton.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
tracker.trackEvent("Clicks", // Category
"Button", // Action
"clicked", // Label
77); // Value
}
});
Button createPageButton = (Button) findViewById(R.id.NewPageButton);
createPageButton.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
// Add a Custom Variable to this pageview, with name of "Medium"
// and value "MobileApp"
tracker.setCustomVar(1, "Medium", "Mobile App");
// Track a page view. This is probably the best way to track
// which parts of your application
// are being used.
// E.g.
// tracker.trackPageView("/help"); to track someone looking at
// the help screen.
// tracker.trackPageView("/level2"); to track someone reaching
// level 2 in a game.
// tracker.trackPageView("/uploadScreen"); to track someone
// using an upload screen.
tracker.trackPageView("/testApplicationHomeScreen");
}
});
Button quitButton = (Button) findViewById(R.id.QuitButton);
quitButton.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
finish();
}
});
Button dispatchButton = (Button) findViewById(R.id.DispatchButton);
dispatchButton.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
// Manually start a dispatch, not needed if the tracker was
// started with a dispatch
// interval.
tracker.dispatch();
}
});
}
@Override
protected void onDestroy() {
super.onDestroy();
// Stop the tracker when it is no longer needed.
tracker.stopSession();
}
}