getExternalStorageDirectory（）不被识别

private Context mContext; 


public Upload(Context context, DropboxAPI<?> api, String dropboxPath) 
    { 

     // We set the context this way so we don't accidentally leak activities 
     mContext = context.getApplicationContext(); 

     String outPath = mContext.getExternalStorageDirectory(null).getAbsolutePath() + "/" +"a1.jpg";

错误：方法getExternalStorageDirectory（）是未定义的类型上下文getExternalStorageDirectory（）不被识别

String outPath = mContext.getExternalFilesDir("mnt/sdcard").getAbsolutePath() + "/" +"a1.jpg";

工作正常..

来源

2012-06-22 Amel Jose

其静态的环境类没有上下文http://stackoverflow.com/questions/5453708/android-how-to-use-environment- getexternalstoragedirectory – Slartibartfast

使用

String outPath = Environment.getExternalStorageDirectory(null).getAbsolutePath() + "/" +"a1.jpg";

，而不是

String outPath = mContext.getExternalStorageDirectory(null).getAbsolutePath() + "/" +"a1.jpg";

来源

2012-06-22 15:39:37

getExternalStorageDirectory()没有为语境类型定义的。它在Environment类中定义，它是一种静态方法。

来源

2012-06-22 15:34:20 nullpotent

getExternalStorageDirectory（）不被识别

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