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

1 2	View view = getLayoutInflater().inflate(ResUtil.getResofR(this).getLayout("activity_main"), null); set