Question

所以我现在在我的程序中唯一的布局就是这个activity_main文件。我有一个MainActivity类。我在保存xml文件时遇到了构建错误，并且还没有生成我的R文件。我读取的R文件没有生成与xml错误有关。即使在构建时，错误也不会被我的cml中的eclipse捕获。我已经包含了我的字符串xml文件，布局文件和android清单。非常感谢帮助，谢谢。

字符串XML文件

<?xml version="1.0" encoding="utf-8"?>
<resources>

    <string name="app_name">django mouse</string>
    <string name="title_activity_main">MainActivity</string>
    <string name="hello_world">Hello world!</string>
    <string name="welcome_header">Welcome to Django</string>
    <string name="start_instructions">To begin enter your local ip address and then click the start button</string>
    <string name="pebb_accel_header">Pebble Accelerometer Data</string>
    <string name="main_x_coordinate">X: </string>
    <string name="main_y_coordinate">Y: </string>
    <string name="main_z_coordinate">Z: </string>
    <string name="up_button">up</string>
    <string name="down_button">down</string>
    <string name="left_button">left</string>
    <string name="right_button">right</string>
    <string name="click_button">click</string>
    <string name="start_button">start</string>

</resources>

activity_main

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    android:paddingBottom="20dp"
    tools:context=".MainActivity"
    tools:ignore="MergeRootFrame" >

    <TextView
        android:id="@+id/welcome_header"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_alignParentRight="true"
        android:gravity="center_horizontal"
        android:text="@string/welcome_header"
        android:textColor="@color/Black"
        android:textSize="22sp" />

    <RelativeLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:orientation="vertical" >

        <TextView
            android:id="@+id/start_stop_instructions"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:paddingTop="75dp"
            android:text="@string/start_instructions"
            android:textColor="@color/Black"
            android:textSize="18sp" />

        <TextView
            android:id="@+id/welcome_sub_header"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_below="@id/start_stop_instructions"
            android:paddingTop="16dp"
            android:text="@string/pebb_accel_header"
            android:textColor="@color/Black"
            android:textSize="18sp" />

        <LinearLayout
            android:id="@+id/accel_data"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_below="@id/pebb_accel_header"
            android:orientation="vertical" >

            <TextView
                android:id="@+id/main_x_coordinate"
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                android:text="@string/main_x_coordinate"
                android:textColor="@color/Black" />

            <TextView
                android:id="@+id/main_y_coordinate"
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                android:text="@string/main_y_coordinate"
                android:textColor="@color/Black" />

            <TextView
                android:id="@+id/main_z_coordinate"
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                android:text="@string/main_z_coordinate"
                android:textColor="@color/Black" />
        </LinearLayout>

        <Button
            android:id="@+id/up_button"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_below="@id/accel_data"
            android:layout_centerHorizontal="true"
            android:layout_marginTop="32dp"
            android:text="@string/up_button" />

        <Button
            android:id="@+id/down_button"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_below="@+id/up_button"
            android:layout_centerHorizontal="true"
            android:layout_marginTop="48dp"
            android:text="@string/down_button" />

        <Button
            android:id="@+id/left_button"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_below="@id/up_button"
            android:layout_toLeftOf="@id/up_button"
            android:text="@string/left_button" />

        <Button
            android:id="@+id/right_button"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_below="@id/up_button"
            android:layout_toRightOf="@id/up_button"
            android:text="@string/right_button" />

        <Button
            android:id="@+id/click_button"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_below="@id/up_button"
            android:layout_toLeftOf="@id/right_button"
            android:layout_toRightOf="@id/left_button"
            android:text="@string/click_button" />
    </RelativeLayout>

    <Button
        android:id="@+id/main_start_button"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentBottom="true"
        android:layout_centerHorizontal="true"
        android:text="@string/start_button"

</RelativeLayout>`

Android Manifest

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.housedroid.djangomouse"
    android:versionCode="1"
    android:versionName="1.0" >

    <uses-sdk
        android:minSdkVersion="8"
        android:targetSdkVersion="19" />

    <application
        android:allowBackup="true"
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name"
        android:theme="@style/AppTheme" >
        <activity
            android:name="com.housedroid.djangomouse.MainActivity"
            android:label="@string/title_activity_main" >
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
    </application>

</manifest>

Answer 1

检查Button

activity_main.xml

您是否定义了colors.xml？

Answer 2

正如Stephan所提到的，添加/＆gt;持续Button标签并执行清理和重建项目

构建android XML布局时出错，r文件无法生成

字符串XML文件

2 个答案: