public class NetWorkHelper { private static String LOG_TAG = "NetWorkHelper"; public static Uri uri = Uri.parse("content://telephony/carriers"); /** * 判断是否有网络连接 */ public static boolean isNetworkAvail

需求：点击Edittext，输入法弹出，此时点击返回键，必先响应输入法，输入法隐藏。 要求在输入法弹出的情况下，点击返回键，我们的View也能收到信息从而处理事件。与输入法隐藏同步。 解决方案： 需要重写自己的View的dispatchKeyEventPreIme方法。以我自己的EditText为例，在输入法界面，点击一次返回键，输入法隐藏，同时EditText也要收到消息去处理事件。代码如下，自

// 监听类 private final BroadcastReceiver sdcardListener = new BroadcastReceiver() { @Override public void onReceive(Context context, Intent intent) { String action = intent.getAction(); Log.d("TAG", "sd

/** * * 判断网络状态是否可用 * * @return true: 网络可用 ; false: 网络不可用 */ public boolean isConnectInternet() { ConnectivityManager conManager = (ConnectivityManager) test.this .getSystemService(Context.CONNECTIVITY

/** * 判断服务是否处于运行状态. * @param servicename * @param context * @return */ public static boolean isServiceRunning(String servicename,Context context){ ActivityManager am = (ActivityManager) context.getSys

现在的App就用越来越人性化了，为了满足用户的体验欲望，从各个方面都进行了仔细处理。比如我们点击第一次点击Back键的时候，会温馨提示“再按一次返回键退出应用”等，今天 就记录下自己在项目中写的这个小功能： 首先写个工具类： public class DoubleClickExitApp { private Context mcontext; /**是否是再次点击back键*/ private b

public class GetBroadcast extends BroadcastReceiver { private static GetBroadcast mReceiver = new GetBroadcast(); private static IntentFilter mIntentFilter; public static void registerReceiver(Context

/** * 更新相册某个文件 */ public static void photoUpdates(Context context, File file) { if (!file.exists()) { return; } try { MediaStore.Images.Media.insertImage(context.getContentResolver(), file.getAbsolute

// 监听类 private final BroadcastReceiver sdcardListener = new BroadcastReceiver() { @Override public void onReceive(Context context, Intent intent) { String action = intent.getAction(); Log.d("TAG", "sd

客户端： public class HttpUtil { //创建HttpClient对象 public static HttpClient httpClient = new DefaultHttpClient(); public static final String BASE_URL="http://xxx.xxxx.xx.xx:8080/ticket/"; // public static

public static ArrayList<String> getActivities(Context ctx) { ArrayList<String> result = new ArrayList<String>(); Intent intent = new Intent(Intent.ACTION_MAIN, null); intent.setPackage(ctx.getPackageN

public class PhoneSIMCInfo { /**手机管理工具类*/ private TelephonyManager telephonyManager; /**国际移动用户识别码*/ private String mImsi; public PhoneSIMCInfo(Context context) { telephonyManager = (TelephonyManager)

import java.io.BufferedReader; import java.io.IOException; import java.io.InputStream; import java.io.InputStreamReader; import java.io.Reader; import java.net.HttpURLConnection; import java.net.Malfo

public class DemoActivity extends FinalActivity { @ViewInject(id=R.id.imageView) ImageView imageView; //无需findViewById @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedI

private float startx; private float starty; private float upoffset; @Override public boolean onTouchEvent(MotionEvent event) { switch (event.getAction()) { case MotionEvent.ACTION_DOWN: startx = event

第一种： DisplayMetrics dm = new DisplayMetrics(); getWindowManager().getDefaultDisplay().getMetrics(dm); System.out.println("heigth : " + dm.heightPixels); System.out.println("width : " + dm.widthPixels)

/** 获取存储卡路径 */ File sdcardDir=Environment.getExternalStorageDirectory(); /** StatFs 看文件系统空间使用情况 */ StatFs statFs=new StatFs(sdcardDir.getPath()); /** Block 的 size*/ Long blockSize=statFs.getBlockSize(

下面的代码通过Environment.getExternalStorageState获取SD卡的状态，如果SD卡不存在或者不可用则提示SD卡不可用，如果可用，则写入数据到SD中的sharejs.com.txt文件 public boolean saveToSD(String tel,String content){ Boolean result = true; if (Environment.ge

private class ErweimaAsyncTask extends AsyncTask<String, Integer, String>{ @Override protected String doInBackground(String... paramArray) { URL picUrl; try { picUrl = new URL(Constant.ERWEIMA_URL + "

public static String getDisplayMetrics(Context cx) { String str = ""; DisplayMetrics dm = new DisplayMetrics(); dm = cx.getApplicationContext().getResources().getDisplayMetrics(); int screenWidth = dm