我一直在阅读其他一些关于在另一个包中调用活动的帖子,看起来我做得对,但仍然从我的主要活动中得到这个错误:
AndroidTestProj1/src/com/testing/androidtest/TestProj1Activity.java:7: error: package com.testing.androidtest2 does not exist
我已经在我的清单中声明了其他活动,但它仍然找不到它。
=====================================
这是 AndroidTestProj1:AndroidManifest.xml:
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.testing.androidtest"
android:versionCode="1"
android:versionName="1.0">
<application android:label="@string/app_name" >
<activity android:name="TestProj1Activity"
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.testing.androidtest2.TestProj2Activity"
android:label="@string/app2_name" >
</activity>
</application>
和 AndroidTestProj1/src/com/testing/androidtest/TestProj1Activity.java:
package com.testing.androidtest;
import android.app.Activity;
import android.os.Bundle;
import android.content.Intent;
import com.testing.androidtest2.TestProj2Activity;
public class TestProj1Activity extends Activity
{
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
// do some stuff here then call other package activity
Intent i = new Intent(this, TestProj2Activity.class);
startActivity(i);
}
}
这是 AndroidTestProj2:AndroidManifest.xml:
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.testing.androidtest2"
android:versionCode="1"
android:versionName="1.0">
<application android:label="@string/app_name" >
<activity android:name="TestProj2Activity"
android:label="@string/app_name">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
和 AndroidTestProj2/src/com/testing/androidtest2/TestProj2Activity.java:
package com.testing.androidtest2;
import android.app.Activity;
import android.os.Bundle;
import com.testing.androidtest2.Helper;
public class TestProj2Activity extends Activity
{
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
}
private boolean somekeyvalue = Helper.getSomeKeyValue();
// do stuff with keyvalue
}
和AndroidTestProj2/src/com/testing/androidtest2/Helper.java:
package com.testing.androidtest2;
import android.content.Context;
import android.content.SharedPreferences;
import android.preference.PreferenceManager;
public class Helper {
private static final String SOMEKEY = "somekey";
private static SharedPreferences prefs;
public static void init(Context context)
{
prefs = PreferenceManager.getDefaultSharedPreferences(context);
initialize();
}
private static void initialize()
{
SharedPreferences.Editor editor = prefs.edit();
if (!prefs.contains(SOMEKEY)) editor.putBoolean(SOMEKEY, false);
editor.commit();
}
public static boolean getSomeKeyValue()
{
return prefs.getBoolean(SOMEKEY, true);
}
}