Android 从代码引用字符串资源
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Reference string resource from code
提问by scarhand
I have the following string declared in strings.xml:
我在 strings.xml 中声明了以下字符串：
<string name="last_msg">Your last click was on</string>
Now when someone clicks a button, I want a textview to show this string, with a space, then a variable value that is a timestamp.
现在当有人点击一个按钮时，我想要一个 textview 显示这个字符串，一个空格，然后是一个时间戳的变量值。
Unfortunately, using @string/last_msg isn't working, and I'm not sure how to do this properly so I'm not hardcoding in content.
不幸的是，使用 @string/last_msg 不起作用，我不确定如何正确执行此操作，因此我没有对内容进行硬编码。
Here's my code for the onClick function:
这是我的 onClick 函数代码：
public void showMsgNow(View view) {
TextView lastMsg = (TextView)findViewById(R.id.textView2);
long currentTimeStamp = System.currentTimeMillis();
lastMsg.setText(@string/last_msg + " " + currentTimeStamp);
}
I'm a newbie, any help would be great !
我是新手，任何帮助都会很棒！
回答by scarhand
I found the answer on Google:
我在谷歌上找到了答案：
getString(R.string.last_msg)
回答by Mohammed Azharuddin Shaikh
you cant access Stringdirectly by @, for that you need to have context resource and then just do this...
你不能String直接访问@，因为你需要有上下文资源，然后就这样做......
lastMsg.setText(context.getResources().getString(R.string.last_msg) + " " + currentTimeStamp);
in your case use
在你的情况下使用
<string name="last_msg">Your last click was on %1$s</string>
implementation:
执行：
public void showMsgNow(View view) {
TextView lastMsg = (TextView)findViewById(R.id.textView2);
long currentTimeStamp = System.currentTimeMillis();
lastMsg.setText(context.getResources()
.getString(R.string.last_msg, currentTimeStamp));
}
回答by Sandeep P
// getString is method of context
if (this instanceof Context)
//If you are in Activity or Service class
lastMsg.setText(getString(R.string.last_msg)+ " " + currentTimeStamp);
else
//you need to context to get the string
lastMsg.setText(getString(mContext,R.string.last_msg)+ " " + currentTimeStamp);
public String getString(Context mContext, int id){
return mContext.getResources().getString(id);
}
回答by AAnkit
use below line
使用下面的行
lastMsg.setText(getString(R.string.last_msg) + " " + currentTimeStamp);
回答by Kumar Vivek Mitra
Try this :
尝试这个 ：
lastMsg.setText(R.string.last_msg + " " + new SimpleDateFormat(d-MM-YYYY).format(new Date()));
