本文介绍了无法解析符号 R的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我在 Android Studio 上工作以添加简短的 toast 消息.(我正在制作一个 Android Wear 应用程序)
I was working on Android Studio for adding a short toast message.(I was making an Android Wear Application)
我不知道为什么这段代码在 'symbol R' 上有错误.它说无法解析符号 R."
I couldn't know why this code has error on 'symbol R' .It says "Cannot Resolve Symbol R."
import android.app.Activity;
import android.content.Context;
import android.content.DialogInterface;
import android.os.Bundle;
import android.support.wearable.view.WatchViewStub;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;
import android.widget.Toast;
public class MyActivity extends Activity {
private TextView mTextView;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_my);
//getnextpage
Button getnextpage;
getnextpage = (Button) findViewById(R.id.getnextpage);
getnextpage.setOnClickListener(new OnclickListener() {
public void onClick(View v) {
Toast.makeText(getApplicationContext(), "Here is 2nd Page", Toast.LENGTH_LONG).show();
}
});
final WatchViewStub stub = (WatchViewStub) findViewById(R.id.watch_view_stub);
stub.setOnLayoutInflatedListener(new WatchViewStub.OnLayoutInflatedListener() {
@Override
public void onLayoutInflated(WatchViewStub stub) {
mTextView = (TextView) stub.findViewById(R.id.text);
}
});
}
}
推荐答案
下面提到了一些程序:
1) 尝试 Build
-> Clean/Rebuild
项目.
1) Try Build
-> Clean/Rebuild
project .
2) 手动输入 import .R
,如果 import R 丢失.
2) Manually typing import <package name>.R
, If in import R is missing.
3) 完成其对应的XML
文件的所有资源.
3) complete all resources of its corresponding XML
file .
我希望其中任何一个对您有所帮助,因为没有特定的方法可以解决此问题.
I hope any one of them would be helpful for you as there is no Particular way to resolve this issue.
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