cdzwm的专栏

Android应用程序全屏显示的方法

http://blog.goggb.com/tb.php?sc=bd864&id=82

try {String key = "1234567890", pass="pass";SecretKeySpec sks = new SecretKeySpec(key.getBytes(), "hmacmd5");Mac mac = Mac.getInstance("hmacmd5");mac.init(sks);mac.update(pass.getBytes()

<br />// get SharedPreferences object<br />// Activity.getPreferences(int mode)<br />SharedPreferences mPrefs = getPreferences(MODE_PRIVATE);<br />// read string value<br />String text = mPrefs.getString("test", "none");<br />// write string value<br />Sha

File f = new File("/sdcard", "test.txt");try { f.createNewFile();} catch (IOException e) { e.printStackTrace();}

<br />// HttpClient usage<br />AbstractHttpClient hc = new DefaultHttpClient();<br />HttpGet r = new HttpGet("http://www.baidu.com/");<br />try {<br /> hc.execute(r);<br />} catch (ClientProtocolException e) {<br /> e.printStackTrace();<br />} catch (IOExc

<br />Android中获得设备屏幕的横向和纵向物理象素数, 请在Activity.onCreate(Bundle bundle)中使用如下代码：<br /> <br />DisplayMetrics dm = new DisplayMetrics();<br />getWindowManager().getDefaultDisplay().getMetrics(dm);<br />int x = (int)(0.5+dm.widthPixels*dm.density);<br />int y = (i

在Android平台下，进行多线程编程时，经常需要在主线程之外的一个单独的线程中进行某些处理，然后更新用户界面显示。但是，在主线线程之外的线程中直接更新页面显示的问题是：系统会报这个异常，android.view.ViewRoot$CalledFromWrongThreadException: Only the original thread that created a view hierarchy can touch its views. (只有原始创建这个视图层次(view hierachy)的线程才

SmsManager sms = SmsManager.getDefault(); sms.sendTextMessage("接收短信的手机号码", null, "Hello, friend. I'm your friend. Android test.", null, null);

package com.zzz.Test;import java.io.DataOutputStream;import java.io.FileInputStream;import java.io.InputStream;import java.net.HttpURLConnection;import java.net.URL;import java.util.List;impor