Android obtains the resource Id through reflection, and android obtains the resource id

Android obtains the resource Id through reflection, and android obtains the resource id

When you compress a self-written tool into A. jar package, you sometimes need to reference the resources in res. At this time, you cannot package the resources together and can only obtain resources dynamically through the reflection mechanism.

Especially when you define a tool to compress it into a. jar package, pay special attention to resource acquisition.

 

1. encapsulated into a tool class

package com.cp.utils;import android.content.Context;public class CPResourceUtil {      public static int getLayoutId(Context paramContext, String paramString) {         return paramContext.getResources().getIdentifier(paramString, "layout",                 paramContext.getPackageName());     }      public static int getStringId(Context paramContext, String paramString) {         return paramContext.getResources().getIdentifier(paramString, "string",                 paramContext.getPackageName());     }      public static int getDrawableId(Context paramContext, String paramString) {         return paramContext.getResources().getIdentifier(paramString,                 "drawable", paramContext.getPackageName());     }          public static int getStyleId(Context paramContext, String paramString) {         return paramContext.getResources().getIdentifier(paramString,                 "style", paramContext.getPackageName());     }          public static int getId(Context paramContext, String paramString) {         return paramContext.getResources().getIdentifier(paramString,"id", paramContext.getPackageName());     }          public static int getColorId(Context paramContext, String paramString) {         return paramContext.getResources().getIdentifier(paramString,                 "color", paramContext.getPackageName());     }     public static int getArrayId(Context paramContext, String paramString) {         return paramContext.getResources().getIdentifier(paramString,                 "array", paramContext.getPackageName());     } }

　　

2. Resource Acquisition

<String name = "version_update_schedule"> % 1 $ s downloaded. Please wait... </String>

　　

3. java

String text = mContext. getResources (). getString (CPResourceUtil. getStringId (mContext, "version_update_schedule"); TextView. setText (String. format (text, p + "%"); version_update_schedule is the name in the string File