android 如何读取 assets、raws文件
1、读输入流的方法：通过读输入流返回一个String
/**
* 读输入流
*
* @param is
* @return
*/
public static String getStringByInputStream(InputStream is) {
String content = null;
try {
if (is != null) {
byte[] buffer = new byte[is.available()];
ByteArrayOutputStream arrayOutputStream = new ByteArrayOutputStream();
while (true) {
int readLength = is.read(buffer);
if (readLength == -1)
break;
arrayOutputStream.write(buffer, 0, readLength);
}
is.close();
arrayOutputStream.close();
content = new String(arrayOutputStream.toByteArray());
}
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
content = null;
} finally {
try {
if (is != null)
is.close();
} catch (IOException ioe) {
ioe.printStackTrace();
}
}
return content;
}
2、读assets文件的方法：
public static String readAssets(Context context, String fileName) {
InputStream is = null;
try {
is = context.getAssets().open(fileName);
} catch (IOException e) {
e.printStackTrace();
}
return getStringByInputStream(is);
}
3、读raw文件的方法：
public static String readRaws(Context context, int id) {
InputStream is = context.getResources().openRawResource(id);
return getStringByInputStream(is);
}