Eclipse可以';我看不到listview的自定义布局 开始时,我是Android和java编程中的新手,但我有很多编程语言,如C、C++、Perl、PerlTk、OpenGL、Pascal、微控制器编程(C、汇编)等。我做了一项研究,做了很多尝试,但都没有效果
因此,我想更改listview中的字体大小和字体颜色。 我找到了两种解决方案:Eclipse可以';我看不到listview的自定义布局 开始时,我是Android和java编程中的新手,但我有很多编程语言,如C、C++、Perl、PerlTk、OpenGL、Pascal、微控制器编程(C、汇编)等。我做了一项研究,做了很多尝试,但都没有效果,java,android,eclipse,listview,layout,Java,Android,Eclipse,Listview,Layout,因此,我想更改listview中的字体大小和字体颜色。 我找到了两种解决方案: 改变风格。这是可行的,但是如果我修改了我的样式,那么我就必须修改所有其他元素,从这个样式生成什么呢。所以不,如果我选择这种方法,我仍然无法修改listview的已按下和未按下状态背景色 自定义布局。我更喜欢这种方法,但是如果我参考布局,eclipse会说:“无法解析,或者不是字段” 我的代码: public class Btcall extends Activity { private ListView lis
public class Btcall extends Activity
{
private ListView list;
final int REQUEST_ENABLE_BT = 1;
TextView kiirni;
TextView scanned;
View view2;
View view3;
Button connectbutton;
private ArrayAdapter<String> founddevices = null;
@Override
protected void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_btcall);
view2=(View) findViewById(R.id.view2);
view3=(View) findViewById(R.id.view3);
connectbutton=(Button) findViewById(R.id.button1);
kiirni=(TextView)findViewById(R.id.text1);
scanned=(TextView)findViewById(R.id.scanned);
list = (ListView) findViewById(R.id.list1);
}
public void irddki(View v)
{
BluetoothAdapter bluetooth = null;
BroadcastReceiver mReceiver = null;
bluetooth = BluetoothAdapter.getDefaultAdapter();
founddevices = null;
if(bluetooth != null)
{
String status;
if (bluetooth.isEnabled())
{
String mydeviceaddress = bluetooth.getAddress();
String mydevicename = bluetooth.getName();
status = mydevicename + " : " + mydeviceaddress;
Toast.makeText(this, status, Toast.LENGTH_LONG).show();
bluetooth.startDiscovery();
mReceiver = new BroadcastReceiver()
{
public void onReceive(Context context, Intent intent)
{
String action = intent.getAction();
if (BluetoothDevice.ACTION_FOUND.equals(action))
{
BluetoothDevice device = intent.getParcelableExtra(BluetoothDevice.EXTRA_DEVICE);
founddevices.add(device.getName() + "\n" + device.getAddress());
}
}
};
scanned.setVisibility(View.VISIBLE);
RelativeLayout.LayoutParams lp = new RelativeLayout.LayoutParams(RelativeLayout.LayoutParams.WRAP_CONTENT, RelativeLayout.LayoutParams.WRAP_CONTENT);
lp.setMargins(470, 270, 0, 0);
connectbutton.setLayoutParams(lp);
connectbutton.setText("Scan again");
kiirni.setVisibility(View.GONE);
list.setBackgroundResource(R.color.Lightgrayy);
list.setVisibility(View.VISIBLE);
view2.setVisibility(View.VISIBLE);
view3.setVisibility(View.VISIBLE);
/*HERE IS THE PROBLEM--->*/
founddevices = new ArrayAdapter<String>(this, android.R.layout.mylist);
list = (ListView) findViewById(R.id.list1);
list.setAdapter(founddevices);
IntentFilter filter = new IntentFilter(BluetoothDevice.ACTION_FOUND);
registerReceiver(mReceiver, filter);
}
else
{
if (!bluetooth.isEnabled())
{
Intent enableBtIntent = new Intent(BluetoothAdapter.ACTION_REQUEST_ENABLE);
startActivityForResult(enableBtIntent, REQUEST_ENABLE_BT);
}
}
}
}
public void close(View v)
{
moveTaskToBack(true);
}
}
公共类Btcall扩展活动
{
私有列表视图列表;
最终整数请求\启用\ BT=1;
文本视图基尔尼;
文本视图扫描;
视图2;
视图3;
按钮连接按钮;
专用ArrayAdapter founddevices=null;
@凌驾
创建时受保护的void(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_btcall);
view2=(视图)findViewById(R.id.view2);
view3=(视图)findViewById(R.id.view3);
connectbutton=(按钮)findViewById(R.id.button1);
kiirni=(TextView)findViewById(R.id.text1);
扫描=(TextView)findViewById(R.id.scanned);
列表=(ListView)findViewById(R.id.list1);
}
DKI公共区域(视图五)
{
蓝牙适配器蓝牙=空;
BroadcastReceiver mReceiver=null;
bluetooth=BluetoothAdapter.getDefaultAdapter();
founddevices=null;
如果(蓝牙!=null)
{
字符串状态;
如果(bluetooth.isEnabled())
{
字符串mydeviceaddress=bluetooth.getAddress();
字符串mydevicename=bluetooth.getName();
状态=mydevicename+”:“+mydeviceaddress;
Toast.makeText(this,status,Toast.LENGTH_LONG).show();
bluetooth.startDiscovery();
mReceiver=新广播接收器()
{
公共void onReceive(上下文、意图)
{
String action=intent.getAction();
if(BluetoothDevice.ACTION_FOUND.equals(ACTION))
{
BluetoothDevice=intent.getParcelableExtra(BluetoothDevice.EXTRA\u设备);
添加(device.getName()+“\n”+device.getAddress());
}
}
};
扫描。设置可见性(视图。可见);
RelativeLayout.LayoutParams lp=新的RelativeLayout.LayoutParams(RelativeLayout.LayoutParams.WRAP_内容,RelativeLayout.LayoutParams.WRAP_内容);
lp.设定利润率(470270,0,0);
connectbutton.setLayoutParams(lp);
connectbutton.setText(“再次扫描”);
kiirni.setVisibility(View.GONE);
列表.setBackgroundResource(R.color.浅灰色);
list.setVisibility(View.VISIBLE);
view2.setVisibility(View.VISIBLE);
view3.setVisibility(View.VISIBLE);
/*这就是问题所在--->*/
founddevices=new ArrayAdapter(这是android.R.layout.mylist);
列表=(ListView)findViewById(R.id.list1);
列表.setAdapter(founddevices);
IntentFilter筛选器=新的IntentFilter(BluetoothDevice.ACTION\u已找到);
registerReceiver(mrReceiver,过滤器);
}
其他的
{
如果(!bluetooth.isEnabled())
{
Intent enablebintent=新意图(BluetoothAdapter.ACTION\u REQUEST\u ENABLE);
startActivityForResult(启用BTIntent、请求\启用\ BT);
}
}
}
}
公共空间关闭(视图五)
{
moveTaskToBack(真);
}
}
我写了一个custum布局,我把它放在layouts文件夹中,它也在R文件夹中
但月食还是看不见它。。。也许我得进口点什么?我确信这是一个noob Q,但我会很感激您的回答。尝试使用以下方法:
R.layout.mylist
而不是:
android.R.layout.mylist
是的,我知道答案是这样的。。。谢谢你,雷纳德!改变使用eclipse右键单击中的布局样式