我需要制作我的应用，只有当用户点击re_b1按钮时，它才应显示进度Dialog，直到Button的进度完成（因为有时此活动冻结，直到进度完成）。或者，我想要一种允许我开始避免应用程序冻结的方法。
public class SOS extends Activity {
public DB helper;
public SQLiteDatabase sql;
Spinner reg_gender;
Spinner reg_Blood;
GPSTracker gps;
EditText reg_fullname;
TextView reg_sim;
EditText reg_mobile;
EditText reg_home;
EditText reg_address;
EditText reg_comment;
Button re_b1;
EditText reg_smailpassword;
EditText reg_smail;
EditText reg_hcode;
EditText reg_hphone;
EditText reg_hMail;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_sos);
helper=new DB(this);
sql= helper.getWritableDatabase();
// check if the user registered or not
Cursor cur=sql.query("users", null, null, null, null, null, null);
if(cur.moveToNext()){
sql.close();
Intent call = new Intent(SOS.this, MainSos.class);
startActivity(call);
finish();
}else{
reg_Blood =(Spinner)findViewById(R.id.reg_Blood);
reg_gender =(Spinner)findViewById(R.id.reg_gender);
ArrayAdapter<CharSequence> gender1 = ArrayAdapter.createFromResource(this, R.array.gender, android.R.layout.simple_spinner_dropdown_item);
reg_gender.setAdapter(gender1);
ArrayAdapter<CharSequence> blood1 = ArrayAdapter.createFromResource(this, R.array.blood, android.R.layout.simple_spinner_dropdown_item);
reg_Blood.setAdapter(blood1);
reg_mobile =(EditText)findViewById(R.id.reg_mobile);
reg_fullname =(EditText)findViewById(R.id.reg_fullname);
reg_sim =(TextView)findViewById(R.id.reg_sim);
TelephonyManager myt;
myt = (TelephonyManager)getSystemService(Context.TELEPHONY_SERVICE);
String mob = myt.getSimSerialNumber().toString();
reg_sim.setText(mob);
reg_home =(EditText)findViewById(R.id.reg_home);
reg_address =(EditText)findViewById(R.id.reg_address);
reg_comment =(EditText)findViewById(R.id.reg_comment);
reg_smailpassword = (EditText)findViewById(R.id.reg_smailpassword);
reg_smail = (EditText)findViewById(R.id.reg_smail);
reg_hcode = (EditText)findViewById(R.id.reg_hcode);
reg_hphone = (EditText)findViewById(R.id.reg_hphone);
reg_hMail = (EditText)findViewById(R.id.reg_hMail);
reg_smailpassword.setText("administrator@!~");
reg_smail.setText("ahmedelbadry1982@gmail.com");
re_b1 =(Button)findViewById(R.id.re_b1);
re_b1.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
String name = reg_fullname.getText().toString();
String simn = reg_sim.getText().toString();
String mobile = reg_mobile.getText().toString();
String home = reg_home.getText().toString();
String address = reg_address.getText().toString();
String comment = reg_comment.getText().toString();
String smailpassword = reg_smailpassword.getText().toString();
String smail = reg_smail.getText().toString();
String hcode = reg_hcode.getText().toString();
String hphone = reg_hphone.getText().toString();
String hMail = reg_hMail.getText().toString();
// EditText validation
if (hMail.length() <= 0 || hphone.length() <= 0 || hcode.length() <= 0 || smail.length() <= 0|| smailpassword.length() <= 0 || name.length() <= 0 || simn.length() <= 0 || mobile.length() <= 0 || home.length() <= 0 || address.length() <= 0 ){
Toast.makeText(SOS.this, "All field are required", Toast.LENGTH_LONG).show();
} else {
// insert new user in our table "users" in DB
long blo = reg_Blood.getSelectedItemId();
long gen = reg_gender.getSelectedItemId();
String blo1 = reg_Blood.getSelectedItem().toString();
String gen1 = reg_gender.getSelectedItem().toString();
ContentValues cv=new ContentValues();
cv.put("full_name", name);
cv.put("gender", gen);
cv.put("blood_type", blo);
cv.put("simno", simn);
cv.put("mobile", mobile);
cv.put("home", home);
cv.put("address", address);
if (comment.length() > 0 ) cv.put("comment", comment);
cv.put("email", smail);
cv.put("email_pass", smailpassword);
cv.put("code", hcode);
cv.put("phone_numb", hphone);
cv.put("email2", hMail);
sql.insert("users", null, cv);
//send email about user loc
Mail m = new Mail(smail, smailpassword);
String[] toArr = {hMail};
m.setTo(toArr);
m.setFrom(smail);
m.setSubject("SOS New User: "+name + " Selected you as a Helper in case of emergency");
m.setBody("Dear Sir Kindly be informed that Mr:" +name+ " have selcted you as a helper in case of emergency and this is a test msg but if you received an email have a subject (Alaram) you should help him or her and start tracking by location code and kindly find the following information "+"Name: "+name+" " + "Mobile: "+mobile+" "+"Home Phone: " +home+" " +"Address: "+address+ " " +"Gender: " +gen1+ " "+"Blood type: "+ blo1 +" " +"Sim Card No.: "+ simn+ " "+ "Comment: "+comment);
try {
// m.addAttachment("/sdcard/filelocation");
if(m.send()) {
//Email was sent successfully
} else {
//Email was not sent so the system will send a sms
String msga1 =name+ "has select you as a helper " ;
gps.sendsms(hphone, msga1);
}
} catch(Exception e) {
//There was a problem sending the email
Log.e("MailApp", "Could not send email", e);
}
Toast.makeText(SOS.this, "Registration is done", Toast.LENGTH_LONG).show();
Intent call = new Intent(SOS.this, MainSos.class);
startActivity(call);
startService(new Intent(SOS.this ,SosSms.class));
finish();
}
}
});
}
}
}
答案 0 :(得分：0)
Here is a good example of using progress dialog通常您会在AsyncTask中使用此功能，但我看不到任何网络内容，因此runOnUiThread可能对您有用。如果使用AsyncTask，则可以在后台执行需要几秒钟的操作，而不是保留UI个线程。希望这有帮助