Android读取文本原始资源文件
Android读取文本原始资源文件
提问于 2010-11-03 21:49:40
我添加了一个文本文件作为原始资源。文本文件包含如下文本：
b) IF APPLICABLE LAW REQUIRES ANY WARRANTIES WITH RESPECT TO THE
SOFTWARE, ALL SUCH WARRANTIES ARE
LIMITED IN DURATION TO NINETY (90)
DAYS FROM THE DATE OF DELIVERY.
(c) NO ORAL OR WRITTEN INFORMATION OR
ADVICE GIVEN BY VIRTUAL ORIENTEERING,
ITS DEALERS, DISTRIBUTORS, AGENTS OR
EMPLOYEES SHALL CREATE A WARRANTY OR
IN ANY WAY INCREASE THE SCOPE OF ANY
WARRANTY PROVIDED HEREIN.
(d) (USA only) SOME STATES DO NOT
ALLOW THE EXCLUSION OF IMPLIED
WARRANTIES, SO THE ABOVE EXCLUSION MAY
NOT APPLY TO YOU. THIS WARRANTY GIVES
YOU SPECIFIC LEGAL RIGHTS AND YOU MAY
ALSO HAVE OTHER LEGAL RIGHTS THAT
VARY FROM STATE TO STATE.在我的屏幕上，我有一个这样的布局：
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:gravity="center"
android:layout_weight="1.0"
android:layout_below="@+id/logoLayout"
android:background="@drawable/list_background">
<ScrollView android:layout_width="fill_parent"
android:layout_height="fill_parent">
<TextView android:id="@+id/txtRawResource"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:padding="3dip"/>
</ScrollView>
</LinearLayout>读取原始资源的代码为：
TextView txtRawResource= (TextView)findViewById(R.id.txtRawResource);
txtDisclaimer.setText(Utils.readRawTextFile(ctx, R.raw.rawtextsample);
public static String readRawTextFile(Context ctx, int resId)
{
InputStream inputStream = ctx.getResources().openRawResource(resId);
ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream();
int i;
try {
i = inputStream.read();
while (i != -1)
{
byteArrayOutputStream.write(i);
i = inputStream.read();
}
inputStream.close();
} catch (IOException e) {
return null;
}
return byteArrayOutputStream.toString();
}显示了文本，但是在每一行之后，我得到了奇怪的字符[]。如何删除字符？我想这是一句新的话。
回答 9
Stack Overflow用户
回答已采纳
发布于 2010-11-03 22:08:19
如果使用基于字符的BufferedReader而不是基于字节的InputStream呢？
BufferedReader reader = new BufferedReader(new InputStreamReader(inputStream));
String line = reader.readLine();
while (line != null) {
...
line = reader.readLine();
}别忘了readLine()跳过了换行符！
Stack Overflow用户
发布于 2011-04-15 19:22:19
您可以使用以下命令：
try {
Resources res = getResources();
InputStream in_s = res.openRawResource(R.raw.help);
byte[] b = new byte[in_s.available()];
in_s.read(b);
txtHelp.setText(new String(b));
} catch (Exception e) {
// e.printStackTrace();
txtHelp.setText("Error: can't show help.");
}Stack Overflow用户
发布于 2019-10-22 12:27:49
使用Kotlin，你只需要一行代码就可以做到：
resources.openRawResource(R.raw.rawtextsample).bufferedReader().use { it.readText() }或者甚至声明扩展函数：
fun Resources.getRawTextFile(@RawRes id: Int) =
openRawResource(id).bufferedReader().use { it.readText() }然后直接使用它：
val txtFile = resources.getRawTextFile(R.raw.rawtextsample)页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/4087674
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