摘要： 从一个activity A跳转到另一个activity B,需要获取B的数据时,就使用startActivityForResult去启动B比如从当前activity跳转到系统联系人的activity,并获取联系人信息public class DemoActivity extends Activity { EditText et, et2; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContent... 阅读全文

摘要： 执行下载的主程序MainActivitypublic class DemoActivity extends Activity implements OnClickListener { private ProgressBar pb; private Button bt; private TextView tv; private EditText et; boolean flag = true; boolean stopflag = false; private Handler handler = new Handler() {//进度条下面是-- 当前下... 阅读全文