安卓读取数据库内容然后点击内容跳转到内容详情

可以按照以下步骤实现：

1. 创建一个数据库，包含要显示的内容的表。

2. 在安卓应用程序中使用SQLiteOpenHelper类打开和读取数据库。

3. 从表中读取内容，并将其显示在ListView或RecyclerView等列表视图中。

4. 实现列表项的点击事件，当用户点击列表项时，获取该项的唯一标识符并将其传递到下一个活动中。

5. 在下一个活动中，使用唯一标识符从数据库中检索详细信息，并将其显示在TextView或WebView中。

这里有一些代码片段可以帮助你开始：

1. 创建数据库和表：

public class MyDatabaseHelper extends SQLiteOpenHelper {
    private static final String DATABASE_NAME = "mydatabase.db";
    private static final int DATABASE_VERSION = 1;

    public MyDatabaseHelper(Context context) {
        super(context, DATABASE_NAME, null, DATABASE_VERSION);
    }

    @Override
    public void onCreate(SQLiteDatabase db) {
        String sql = "CREATE TABLE mytable (_id INTEGER PRIMARY KEY AUTOINCREMENT, title TEXT, content TEXT)";
        db.execSQL(sql);
    }

    @Override
    public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
        // Upgrade database here
    }
}

2. 从表中读取内容并显示在列表视图中：

public class MyListAdapter extends ArrayAdapter<MyItem> {
    public MyListAdapter(Context context, List<MyItem> items) {
        super(context, 0, items);
    }

    @Override
    public View getView(int position, View convertView, ViewGroup parent) {
        if (convertView == null) {
            convertView = LayoutInflater.from(getContext()).inflate(R.layout.list_item, parent, false);
        }

        MyItem item = getItem(position);

        TextView titleTextView = convertView.findViewById(R.id.titleTextView);
        TextView contentTextView = convertView.findViewById(R.id.contentTextView);

        titleTextView.setText(item.getTitle());
        contentTextView.setText(item.getContent());

        return convertView;
    }
}

3. 实现列表项的点击事件：

public class MainActivity extends AppCompatActivity {
    private ListView listView;
    private MyListAdapter adapter;
    private SQLiteDatabase database;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        listView = findViewById(R.id.listView);
        adapter = new MyListAdapter(this, new ArrayList<MyItem>());
        listView.setAdapter(adapter);

        MyDatabaseHelper dbHelper = new MyDatabaseHelper(this);
        database = dbHelper.getReadableDatabase();

        listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
            @Override
            public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
                MyItem item = adapter.getItem(position);

                Intent intent = new Intent(MainActivity.this, DetailActivity.class);
                intent.putExtra("id", item.getId());
                startActivity(intent);
            }
        });

        loadData();
    }

    private void loadData() {
        Cursor cursor = database.query("mytable", null, null, null, null, null, null);
        List<MyItem> items = new ArrayList<>();

        while (cursor.moveToNext()) {
            long id = cursor.getLong(cursor.getColumnIndex("_id"));
            String title = cursor.getString(cursor.getColumnIndex("title"));
            String content = cursor.getString(cursor.getColumnIndex("content"));

            MyItem item = new MyItem(id, title, content);
            items.add(item);
        }

        adapter.clear();
        adapter.addAll(items);
        adapter.notifyDataSetChanged();

        cursor.close();
    }
}

4. 在下一个活动中检索详细信息并显示：

public class DetailActivity extends AppCompatActivity {
    private TextView titleTextView;
    private WebView contentWebView;
    private SQLiteDatabase database;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_detail);

        titleTextView = findViewById(R.id.titleTextView);
        contentWebView = findViewById(R.id.contentWebView);

        MyDatabaseHelper dbHelper = new MyDatabaseHelper(this);
        database = dbHelper.getReadableDatabase();

        Intent intent = getIntent();
        long id = intent.getLongExtra("id", -1);

        if (id != -1) {
            Cursor cursor = database.query("mytable", null, "_id=?", new String[] { String.valueOf(id) }, null, null, null);

            if (cursor.moveToFirst()) {
                String title = cursor.getString(cursor.getColumnIndex("title"));
                String content = cursor.getString(cursor.getColumnIndex("content"));

                titleTextView.setText(title);
                contentWebView.loadData(content, "text/html", "UTF-8");
            }

            cursor.close();
        }
    }
}

这些代码片段应该能帮助你开始实现你的应用程序。当然，具体实现还需要根据你的具体需求进行调整。