我禁用tabBar项目然后栏按钮变为灰色。
我想改变它的颜色但是无法做到。默认为灰色。
当我setEnabled为true时，它显示原始颜色为白色。
[[[[self.tabBarController tabBar]items]objectAtIndex:0]setEnabled:FALSE];
答案 0 :(得分：1)
我在// Original version of this file was part of InterClient 2.01 examples
//
// Copyright InterBase Software Corporation, 1998.
// Written by com.inprise.interbase.interclient.r&d.PaulOstler :-)
//
// Code was modified by Roman Rokytskyy to show that Firebird JCA-JDBC driver
// does not introduce additional complexity in normal driver usage scenario.
//
// An example of using a JDBC 2 Standard Extension DataSource.
// The DataSource facility provides an alternative to the JDBC DriverManager,
// essentially duplicating all of the driver manager’s useful functionality.
// Although, both mechanisms may be used by the same application if desired,
// JavaSoft encourages developers to regard the DriverManager as a legacy
// feature of the JDBC API.
// Applications should use the DataSource API whenever possible.
// A JDBC implementation that is accessed via the DataSource API is not
// automatically registered with the DriverManager.
// The DriverManager, Driver, and DriverPropertyInfo interfaces
// may be deprecated in the future.
public final class DataSourceExample
{
static public void main (String args[]) throws Exception
{
// Create an Firebird data source manually;
org.firebirdsql.pool.FBWrappingDataSource dataSource =
new org.firebirdsql.pool.FBWrappingDataSource();
// Set the standard properties
dataSource.setDatabase ("localhost/3050:c:/database/test_charset.fdb");
dataSource.setDescription ("An example database of employees");
/*
* Following properties were not deleted in order to show differences
* between InterClient 2.01 data source implementation and Firebird one.
*/
//dataSource.setDataSourceName ("Employee");
//dataSource.setPortNumber (3060);
//dataSource.setNetworkProtocol ("jdbc:interbase:");
//dataSource.setRoleName (null);
// Set the non-standard properties
//dataSource.setCharSet (interbase.interclient.CharacterEncodings.NONE);
//dataSource.setSuggestedCachePages (0);
//dataSource.setSweepOnConnect (false);
// this some kind of equivalent to dataSource.setNetworkProtocol(String)
// possible values are "type4", "type2" and "embedded".
dataSource.setType("TYPE4");
// SQL Role can be set like this:
//
// dataSource.setRoleName("USER");
// Character encoding for the connection is set to NONE
dataSource.setEncoding("ISO8859_1");
// other non-standard properties do not have setters
// you can pass any DPB parameter
//
// dataSource.setNonStandardProperty("isc_dpb_sweep", null);
// dataSource.setNonStandardProperty("isc_dpb_num_buffers", "75");
// Connect to the Firebird DataSource
try {
dataSource.setLoginTimeout (10);
java.sql.Connection c = dataSource.getConnection ("sysdba", "masterkey");
java.sql.Statement stmt = c.createStatement();
java.sql.ResultSet rs = stmt.executeQuery("SELECT * FROM test_charset");
while(rs.next())
System.out.println("a1 = " + rs.getString(1) + ", a2 = " + rs.getString(2));
stmt.close();
// At this point, there is no implicit driver instance
// registered with the driver manager!
System.out.println ("got connection");
c.close ();
}
catch (java.sql.SQLException e) {
e.printStackTrace();
System.out.println ("sql exception: " + e.getMessage ());
}
}
}
中使用了它，它对我来说很好。
appDelegate但是当我在 [[UIView appearanceWhenContainedIn:[UITabBar class], nil] setTintColor:[UIColor whiteColor]];
[[UITabBar appearance] setTintColor:[UIColor whiteColor]];
课程中设置启用False时，它将变为灰色。
答案 1 :(得分：0)
// this will generate a red tab bar
tabBarController.tabBar.barTintColor = [UIColor redColor];
// this will give selected icons and text your apps tint color
tabBarController.tabBar.tintColor = [UIColor redColor];
更新：
self.tabBarController.tabBar.barTintColor = [UIColor blackColor];
self.tabBarController.tabBar.translucent = false;
self.tabBarController.tabBar.tintColor = [UIColor blueColor];