我正在填写注册表。它是应用程序在初始屏幕之后的第二个页面，其中显示了一个登录表单和两个按钮：登录和注册。当我们点击注册时，它有一个带有两个按钮的注册表单：注册和退出。
当用户第一次进入时，他需要登录或注册，当按下“注册”时，注册过程将开始。用户必须提供用户名、密码、电子邮件地址和手机号码。一旦他填写了所有这些信息，他就可以使用用户名和密码登录。
所有这部分工作正常，但我的要求是注册后，一旦我的应用程序以启动和 MainActivity 重新启动，注册（活动）和登录（活动）将被停用。那么我必须做些什么才能使这项工作发挥作用？谁能帮我这个？
如何停用以 splashActivity 开头的 LoginActivity 和 SignUpActivity ，一旦注册以 splash 开头，而主 Activity 再次以 splash 开头。
飞溅活动
public class SplashScreen extends Activity {
private long splashDelay = 5000; //5 seconds
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.splash_screen);
TimerTask task = new TimerTask()
{
@Override
public void run() {
finish();
Intent mainIntent = new Intent().setClass(SplashScreen.this, LoginActivity.class);
startActivity(mainIntent);
}
};
Timer timer = new Timer();
timer.schedule(task, splashDelay);
}
}
登录：
public class LoginActivity extends Activity {
Intent i;
Button signin, signup;
CheckBox check;
String name = "", pass = "";
byte[] data;
HttpPost httppost;
StringBuffer buffer;
HttpResponse response;
HttpClient httpclient;
InputStream inputStream;
SharedPreferences app_preferences;
List<NameValuePair> nameValuePairs;
EditText editTextId, editTextP;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.login);
signin = (Button) findViewById(R.id.signin);
signup = (Button) findViewById(R.id.signup);
editTextId = (EditText) findViewById(R.id.editTextId);
editTextP = (EditText) findViewById(R.id.editTextP);
app_preferences = PreferenceManager.getDefaultSharedPreferences(this);
check = (CheckBox) findViewById(R.id.check);
String Str_user = app_preferences.getString("username", "0");
String Str_pass = app_preferences.getString("password", "0");
String Str_check = app_preferences.getString("checked", "no");
if (Str_check.equals("yes")) {
editTextId.setText(Str_user);
editTextP.setText(Str_pass);
check.setChecked(true);
}
}
public void Move_to_next()
{
final Handler handle = new Handler();
Runnable delay = new Runnable() {
public void run() {
startActivity(new Intent(LoginActivity.this, SplashActivity.class));
finish();
}
};
handle.postDelayed(delay,2000);
}
public void Move_next()
{
startActivity(new Intent(LoginActivity.this, SignUpActivity.class));
finish();
}
@SuppressLint("NewApi")
private class LoginTask extends AsyncTask <Void, Void, String>
{
@SuppressLint("NewApi")
@Override
protected void onPreExecute()
{
super.onPreExecute();
// Show progress dialog here
}
@Override
protected String doInBackground(Void... arg0) {
try {
httpclient = new DefaultHttpClient();
httppost = new HttpPost("http://xxx/login1.php");
// Add your data
nameValuePairs = new ArrayList<NameValuePair>(2);
nameValuePairs.add(new BasicNameValuePair("UserEmail", name.trim()));
nameValuePairs.add(new BasicNameValuePair("Password", pass.trim()));
httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs));
// Execute HTTP Post Request
response = httpclient.execute(httppost);
inputStream = response.getEntity().getContent();
data = new byte[256];
buffer = new StringBuffer();
int len = 0;
while (-1 != (len = inputStream.read(data))) {
buffer.append(new String(data, 0, len));
}
inputStream.close();
return buffer.toString();
}
catch (Exception e)
{
e.printStackTrace();
}
return "";
}
@SuppressLint("NewApi")
@Override
protected void onPostExecute(String result) {
super.onPostExecute(result);
// Hide progress dialog here
if (buffer.charAt(0) == 'Y') {
Toast.makeText(LoginActivity.this, "login successfull", Toast.LENGTH_SHORT).show();
Move_to_next();
} else {
Toast.makeText(LoginActivity.this, "Invalid Username or password", Toast.LENGTH_SHORT).show();
}
}
}