android - 无法在内容 View 布局中解析资源文件(.R)

Question

我在 setcontentview 处遇到错误，它没有采用布局 main。资源文件未创建，任何人都可以解决我的问题。

这是我的主屏幕代码。

SqlitetestActivity.java 文件

public class SqlitetestActivity extends ListActivity {
protected EditText searchText;
protected SQLiteDatabase db;
protected Cursor cursor;  
protected ListAdapter adapter;

public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main);
    searchText = (EditText) findViewById(R.id.searchText);
    db = (new DatabaseHelper(this)).getWritableDatabase();
}

public void onListItemClick(ListView parent, View view, int position, long id) {
    Intent intent = new Intent(this, StudentDetails.class);
    Cursor cursor = (Cursor) adapter.getItem(position);
    intent.putExtra("EMPLOYEE_ID", cursor.getInt(cursor.getColumnIndex("_id")));
    startActivity(intent);
}

public void search(View view) {
    // || is the concatenation operation in SQLite
    cursor = db.rawQuery("SELECT _id, firstName, lastName, title FROM employee WHERE firstName || ' ' || lastName LIKE ?", 
                    new String[]{"%" + searchText.getText().toString() + "%"});
    adapter = new SimpleCursorAdapter(
            this, 
            R.layout.employee_list_item, 
            cursor, 
            new String[] {"firstName", "lastName", "title"}, 
            new int[] {R.id.firstName, R.id.lastName, R.id.title});
    setListAdapter(adapter);
}

}

我的main.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" 
android:paddingTop="4dp">

<include android:id="@+id/search" layout="@layout/search" />

<ListView
    android:id="@android:id/list"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:layout_below="@id/search"
    android:drawSelectorOnTop="false"/>

</RelativeLayout>

我尝试过重新启动 eclipse..这不起作用。任何能够解决这个问题的人。请坚持我..提前谢谢

Answer 1

只需执行 2 个步骤，问题就更有可能得到解决:

Step 1: Clean your project by clicking Project -> Clean.

Step 2: Rebuild your project by clicking Project -> Build All.

还要确保您的布局 xml 文件没有语法错误，并且您没有任何具有 Not Acceptable 名称的图像(例如图像名称之间的“-”)。