在寫 AndroidManifest.xml 的時候,到底什麼時候要給 Activity 添加android.intent.category.DEFAULT 過濾器呢? Android treats all implicit intents passed to startActivity() as if they contained at least one category: "android.intent.category.DEFAULT" (the CATEGORY_DEFAULT
最近項目中有個需求,就是判斷我們的應用是否被置於後台,以前只是簡單的以為在activty中判斷onUserLeaveHint()是否被執行即可,這個是被該方法的說明給騙了,說明如下:Called as part of the activity lifecycle when an activity is about to go into the background as the result of user choice. For example,when the user presses
http://www.pocketmagic.net/?p=762Android adb error: “device not found” on UbuntuBy Radu Motisan Posted on June 2nd, 2009I've been getting this error way too often recently, so I've decided to point out some of the causes.1) using my older desktop pc
在為ViewFlipper視圖切換增加動畫和Android中實現視圖隨手勢移動中實現了視圖隨手勢切換,現在Android中Compatibility Package提供了ViewPager可以更簡便的實現視圖切換,實現的效果如下:效果和ViewGroup一樣,但是實現過程更簡單.新版的Android Market和Google+都是用了ViewPager.說一下實現過程:工程目錄如下:MyPagerActivity的onCreate方法如下:@Override public void
public class HandLightActivity extends Activity implements OnClickListener{private ToggleButton toggleButton;private Camera m_Camera;@Overrideprotected void onCreate(Bundle savedInstanceState) {// TODO Auto-generated method