Android 无法解决此错误

Android 无法解决此错误,android,bluetooth,Android,Bluetooth,java生成,但java文件中的布局和字符串仍显示以下问题 安慰 button_scan cannot be resolved or is not a field DeviceListScan.java device_list cannot be resolved or is not a field DeviceListScan.java etc.... 下面是R.java文件,所有内容都是在其中生成的,但仍然存在问题,即对于所有布局和字符串,我访问它时说无法解决或不是fei

java生成,但java文件中的布局和字符串仍显示以下问题

安慰

button_scan cannot be resolved or is not a field    DeviceListScan.java 

device_list cannot be resolved or is not a field    DeviceListScan.java 
etc....
下面是R.java文件,所有内容都是在其中生成的,但仍然存在问题,即对于所有布局和字符串,我访问它时说无法解决或不是feild

r、 java文件

    package com.android.settings.bluetooth;

public final class R {
   public static final class attr {
}
public static final class drawable {
    public static final int ic_launcher=0x7f020000;
}
public static final class id {
    public static final int button_scan=0x7f060006;
    public static final int new_devices=0x7f060005;
    public static final int paired_devices=0x7f060003;
    public static final int title_left_text=0x7f060000;
    public static final int title_new_devices=0x7f060004;
    public static final int title_paired_devices=0x7f060002;
    public static final int title_right_text=0x7f060001;
}
public static final class layout {
    public static final int custom_title=0x7f030000;
    public static final int device_list=0x7f030001;
    public static final int device_name=0x7f030002;
}
public static final class string {
    public static final int app_name=0x7f040000;
    public static final int bt_not_enabled_leaving=0x7f040003;
    public static final int button_scan=0x7f04000d;
    public static final int discoverable=0x7f040010;
    public static final int insecure_connect=0x7f04000f;
    public static final int none_found=0x7f04000a;
    public static final int none_paired=0x7f040009;
    public static final int not_connected=0x7f040002;
    /**   DeviceListActivity 
     */
    public static final int scanning=0x7f040007;
    /**  Options Menu 
     */
    public static final int secure_connect=0x7f04000e;
    public static final int select_device=0x7f040008;
    /**   BluetoothChat 
     */
    public static final int send=0x7f040001;
    public static final int title_connected_to=0x7f040005;
    public static final int title_connecting=0x7f040004;
    public static final int title_not_connected=0x7f040006;
    public static final int title_other_devices=0x7f04000c;
    public static final int title_paired_devices=0x7f04000b;
}
public static final class style {
    /** 
    Base application theme, dependent on API level. This theme is replaced
    by AppBaseTheme from res/values-vXX/styles.xml on newer devices.


        Theme customizations available in newer API levels can go in
        res/values-vXX/styles.xml, while customizations related to
        backward-compatibility can go here.

     */
    public static final int AppBaseTheme=0x7f050000;
    /**  Application theme. 
  All customizations that are NOT specific to a particular API-level can go here. 
         */
        public static final int AppTheme=0x7f050001;
    }
}

尝试项目->清理

如果它不起作用,您的XML中可能有一个未显示的错误。日食有时很奇怪


还可以看到您没有导入android.R.

只需再次尝试
Project>Clean
您的项目&
Project>Build

还要确保您没有导入
importandroid.R在您的活动中。

检查