我在Android的初学者开发。 可以any1能请指导我如何调用一个类在其他包保存的方法。

I am a beginner in Android Developing. Can any1 please guide me how to call a Method of a class kept under other package.

像A类在包1调用该方法返回一个数组或对象包2的B类的方法。

Like class A in Package 1 calls a method in Class B of Package 2 which returns An array or object.

我要创建一个Intent为？其实我已经收集所有信息，从不同的类1级保持在不同的包。

Do i have to create an Intent for that?? actually i have to gather all information in 1 class from different classes kept under different packages.

在此先感谢。

package com.xyz.Master;


import android.app.Activity;
import android.content.Context;
import android.os.Build;
import android.telephony.CellLocation;
import android.telephony.TelephonyManager;
import android.telephony.gsm.GsmCellLocation;

public class PhoneInfo extends Activity {

TelephonyManager tm = (TelephonyManager)getSystemService(Context.TELEPHONY_SERVICE);
GsmCellLocation location = (GsmCellLocation) tm.getCellLocation();  
public int cellID, lac,mcc,mnc;
public String imei,manufacturer,model,product;
String[] phoneInfo;
int[] phoneLocationInfo;    

public String[] getHandsetInfo()
{
    manufacturer = Build.MANUFACTURER;
    model = Build.MODEL;
    product = Build.PRODUCT;
    imei=tm.getDeviceId();        

    String softwareVersion = tm.getDeviceSoftwareVersion();

    phoneInfo = new String[5];
    phoneInfo[0]=imei;
    phoneInfo[1]=product;
    phoneInfo[2]=model;
    phoneInfo[3]=manufacturer;
    phoneInfo[4]=softwareVersion;
    return phoneInfo;

}
public int[] getHandsetLocationInfo()
{
    phoneLocationInfo= new int[4];
    String networkOperator = tm.getNetworkOperator();
     if (networkOperator != null) {
            mcc = Integer.parseInt(networkOperator.substring(0, 3));
            mnc = Integer.parseInt(networkOperator.substring(3));
      }
     CellLocation.requestLocationUpdate(); 
     cellID = location.getCid();
     lac = location.getLac();

     phoneLocationInfo[0]=cellID;
     phoneLocationInfo[1]=lac;
     phoneLocationInfo[2]=mcc;
     phoneLocationInfo[3]=mnc;

     return phoneLocationInfo;

}
}

我要打电话上述其他类的方法，并得到这些阵列。 那怎么办，有没有在上面code ??

I want to call above methods from other class and get these arrays. How to do that, is there any error in above code??

推荐答案

假设，我们谈论了Java 包，然后我们有关于调用方法中的一些规则类包等。为了简单起见，这个作品：

Assuming, we're talking about the Java package, then we have several rules for calling methods on classes in other packages. To keep it simple, this works:

package com.example.one;
public class ArrayProvider {
  public String[] getArray() {
    return new String{"I'm ","inside ", "an ", "array "};
  }
  public static Object getObject() {
    return new String{"I'm ","inside ", "an ", "array "};
  }
}

现在你code访问类的方法 ArrayProvider 从其它的包：

Now your code to access the methods of class ArrayProvider from the other package:

package my.namespace.app;
import com.example.one.ArrayProvider;      // import the other class

public class MyClass {

  public static void main(String[] args) {

    // to access the static method
    Object result1 = ArrayProvider.getObject(); 

    // to access "the other" method
    ArrayProvider provider = new ArrayProvider();
    String[] result2 = provider.getArray();
  }
}

进一步阅读