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  • 通过代码获取res里生成R.java中的值

    引用:http://my.eoe.cn/blue_rain/archive/552.html

    有的时候我们生成库文件,需要在里面加入一些UI,并提供出一些xml的资源,那如何在其他项目中使用呢?

    我们只需要在需要生成库文件的代码中不要直接是用R. ,而是使用自己写的方法获取。

    下面上代码:

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    import java.lang.reflect.Field;
    
    import android.content.Context;
    import android.util.Log;
    
    public class ResUtil {
         private static final String TAG = ResUtil.class.getName();
          private static ResUtil instance;
          private Context context;
          private static Class id= null;
          private static Class drawable = null;
          private static Class layout = null;
          private static Class anim = null;
          private static Class style = null;
          private static Class string = null;
          private static Class array = null;
    
          private ResUtil(Context paramContext)
          {
            this.context = paramContext.getApplicationContext();
            try
            {
                drawable = Class.forName(this.context.getPackageName() + ".R$drawable");
            }
            catch (ClassNotFoundException localClassNotFoundException1)
            {
              Log.i(TAG, localClassNotFoundException1.getMessage());
            }
            try
            {
                layout = Class.forName(this.context.getPackageName() + ".R$layout");
            }
            catch (ClassNotFoundException localClassNotFoundException2)
            {
              Log.i(TAG, localClassNotFoundException2.getMessage());
            }
            try
            {
              id = Class.forName(this.context.getPackageName() + ".R$id");
            }
            catch (ClassNotFoundException localClassNotFoundException3)
            {
              Log.i(TAG, localClassNotFoundException3.getMessage());
            }
            try
            {
                anim = Class.forName(this.context.getPackageName() + ".R$anim");
            }
            catch (ClassNotFoundException localClassNotFoundException4)
            {
              Log.i(TAG, localClassNotFoundException4.getMessage());
            }
            try
            {
                style = Class.forName(this.context.getPackageName() + ".R$style");
            }
            catch (ClassNotFoundException localClassNotFoundException5)
            {
              Log.d(TAG, localClassNotFoundException5.getMessage());
            }
            try
            {
                string = Class.forName(this.context.getPackageName() + ".R$string");
            }
            catch (ClassNotFoundException localClassNotFoundException6)
            {
              Log.d(TAG, localClassNotFoundException6.getMessage());
            }
            try
            {
                array = Class.forName(this.context.getPackageName() + ".R$array");
            }
            catch (ClassNotFoundException localClassNotFoundException7)
            {
              Log.d(TAG, localClassNotFoundException7.getMessage());
            }
          }
    
          public static ResUtil getResofR(Context paramContext)
          {
            if (instance == null)
                instance = new ResUtil(paramContext);
            return instance;
          }
    
          public int getAnim(String paramString)
          {
            return getResofR(anim, paramString);
          }
    
          public int getId(String paramString)
          {
            return getResofR(id, paramString);
          }
    
          public int getDrawable(String paramString)
          {
            return getResofR(drawable, paramString);
          }
    
          public int getLayout(String paramString)
          {
            return getResofR(layout, paramString);
          }
    
          public int getStyle(String paramString)
          {
            return getResofR(style, paramString);
          }
    
          public int getString(String paramString)
          {
            return getResofR(string, paramString);
          }
    
          public int getArray(String paramString)
          {
            return getResofR(array, paramString);
          }
    
          private int getResofR(Class<?> paramClass, String paramString)
          {
            if (paramClass == null)
            {
              Log.d(TAG, "getRes(null," + paramString + ")");
              throw new IllegalArgumentException("ResClass is not initialized.");
            }
            try
            {
              Field localField = paramClass.getField(paramString);
              int k = localField.getInt(paramString);
              return k;
            }
            catch (Exception localException)
            {
              Log.d(TAG, "getRes(" + paramClass.getName() + ", " + paramString + ")");
              Log.d(TAG, "Error getting resource. Make sure you have copied all resources (res/) from SDK to your project. ");
              Log.d(TAG, localException.getMessage());
            }
            return -1;
          }
    }
    

    使用方法:在要生成库文件的Java文件中,使用

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    View view = getLayoutInflater().inflate(ResUtil.getResofR(this).getLayout("activity_main"), null);
            set
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  • 原文地址:https://www.cnblogs.com/sode/p/3168929.html
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