常用的小方法，避免忘记，在此记录一上

常用的小方法，避免忘记，在此记录一下
1. 将Activity设置为对话框模式
例如:

<activity android:name=".DeviceListActivity"
                  android:theme="@android:style/Theme.Dialog"
                  android:configChanges="orientation|keyboardHidden" />

2. 设置Activity的进度条

protected void onCreate(Bundle savedInstanceState) {
	// TODO Auto-generated method stub
	super.onCreate(savedInstanceState);
	requestWindowFeature(Window.FEATURE_INDETERMINATE_PROGRESS);
	setContentView(R.layout.loading);
}

setProgressBarIndeterminateVisibility(true);   //打开
setProgressBarIndeterminateVisibility(false);  //关闭

3. Activity之间传递数据

//第一个activity,发送
	Intent i = new Intent();
	i.setClass(LoadingActivity.this, DetailsInfo.class);
	Bundle bundle = new Bundle(); 
	bundle.putString("xml", strXML);		//xml数据作为参数，传递给另一个activity
	i.putExtras(bundle);
	startActivity(i);
//第二个activity,接收
public void onCreate(Bundle savedInstanceState)
{
        super.onCreate(savedInstanceState);
        
        Bundle bunde = this.getIntent().getExtras();
        String strXML = bunde.getString("xml"); 
}

4. int String 之间的转换

  // String转换为int
    int i = Integer.parseInt([String]); 或  
    i = Integer.parseInt([String],[int radix]); 

    int i = Integer.valueOf(my_str).intValue(); 
  
  // int转换为String
    String s = String.valueOf(i); 
    String s = Integer.toString(i);  
    String s = "" + i; 

5. HttpURLConnection连接超时设置

URL url = null;
HttpURLConnection urlConn = null;
url = new URL(AppConstant.URL.Url_AgtTotalInfo);
urlConn = (HttpURLConnection) url.openConnection();
urlConn.setConnectTimeout(10 * 1000);
System.out.println("time out is 10 seconds");
try{
	if (urlConn.getResponseCode() != 200){
		throw new SocketTimeoutException("request url failed!");
	}
}catch(SocketTimeoutException e){
	System.out.println(e);
//	System.out.println("not connected");
	urlConn.disconnect();
}