1：查看是否有存儲卡插入
String status=Environment.getExternalStorageState(); if(status.equals(Enviroment.MEDIA_MOUNTED)) { ;//說明有SD卡插入 }
在OnCreate
中不設Layout,然後this.setTheme(R.style.Theme_Transparent);
3：獲取屏幕寬高
DisplayMetrics dm = new DisplayMetrics(); //獲取窗口屬性 getWindowManager().getDefaultDisplay().getMetrics(dm); int screenWidth = dm.widthPixels; int screenHeight = dm.heightPixels;
4:發送短信
String body=”this is mms demo”; Intent mmsIntent = new Intent(Intent.ACTION_SENDTO, Uri.fromParts(”smsto”, number, null)); mmsIntent.putExtra(Messaging.KEY_ACTION_SENDTO_MESSAGE_BODY, body); mmsIntent.putExtra(Messaging.KEY_ACTION_SENDTO_COMPOSE_MODE, true); mmsIntent.putExtra(Messaging.KEY_ACTION_SENDTO_EXIT_ON_SENT, true); startActivity(mmsIntent);
5:發送彩信
StringBuilder sb = new StringBuilder(); sb.append(”file://”); sb.append(fd.getAbsoluteFile()); Intent intent = new Intent(Intent.ACTION_SENDTO, Uri.fromParts(”mmsto”, number, null)); // Below extra datas are all optional. intent.putExtra(Messaging.KEY_ACTION_SENDTO_MESSAGE_SUBJECT, subject); intent.putExtra(Messaging.KEY_ACTION_SENDTO_MESSAGE_BODY, body); intent.putExtra(Messaging.KEY_ACTION_SENDTO_CONTENT_URI, sb.toString()); intent.putExtra(Messaging.KEY_ACTION_SENDTO_COMPOSE_MODE, composeMode); intent.putExtra(Messaging.KEY_ACTION_SENDTO_EXIT_ON_SENT, exitOnSent); startActivity(intent);
6：發送Mail
mime = “img/jpg”; shareIntent.setDataAndType(Uri.fromFile(fd), mime); shareIntent.putExtra(Intent.EXTRA_STREAM, Uri.fromFile(fd)); shareIntent.putExtra(Intent.EXTRA_SUBJECT, subject); shareIntent.putExtra(Intent.EXTRA_TEXT, body);
7:註冊一個
BroadcastReceiver
registerReceiver(mMasterResetReciever, new IntentFilter(”oms.action.MASTERRESET”)); private BroadcastReceiver mMasterResetReciever = new BroadcastReceiver() { public void onReceive(Context context, Intent intent){ String action = intent.getAction(); if(”oms.action.MASTERRESET”.equals(action)){ RecoverDefaultConfig(); } } };
8:定義ContentObserver，監聽某個數據表
private ContentObserver mDownloadsObserver = new DownloadsChangeObserver(Downloads.CONTENT_URI); private class DownloadsChangeObserver extends ContentObserver { public DownloadsChangeObserver(Uri uri) { super(new Handler()); } @Override public void onChange(boolean selfChange) {｝ }
9:獲得
手機UA
public String getUserAgent() { String user_agent = ProductProperties.get(ProductProperties.USER_AGENT_KEY, null); return user_agent; }
10：清空手機上Cookie
CookieSyncManager.createInstance(getApplicationContext()); CookieManager.getInstance().removeAllCookie(); |
11：建立GPRS 連接
private boolean openDataConnection() { DataConnection conn = DataConnection.getInstance(); if (connectMode == 0) { ret = conn.openConnection(mContext, “cmwap”, “cmwap”, “cmwap”); } else { ret = conn.openConnection(mContext, “cmnet”, “”, “”); } }
12：PreferenceActivity
用法
public class Setting extends PreferenceActivity｛ public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); addPreferencesFromResource(R.xml.settings)； } ｝ |
Setting.xml:
android:key=”seting2″ android:title=”@string/seting2″ android:summary=”@string/seting2″/> android:key=”seting1″ android:title=”@string/seting1″ android:summaryOff=”@string/seting1summaryOff” android:summaryOn=”@stringseting1summaryOff”/> |
13:通過 HttpClient從指定server獲取數據
DefaultHttpClient httpClient = new DefaultHttpClient(); HttpGet method = new HttpGet(“http://www.baidu.com/1.html”); HttpResponse resp; Reader reader = null; try { // AllClientPNames.TIMEOUT HttpParams params = new BasicHttpParams(); params.setIntParameter(AllClientPNames.CONNECTION_TIMEOUT, 10000); httpClient.setParams(params); resp = httpClient.execute(method); int status = resp.getStatusLine().getStatusCode(); if (status != HttpStatus.SC_OK) return false; // HttpStatus.SC_OK; return true; } catch (ClientProtocolException e) { // TODO Auto-generated catch block e.printStackTrace(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } finally { if (reader != null) try { reader.close(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } }