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我的移動應用程序有2個用戶帳戶類型是管理員和用戶。如果我希望用戶和管理員在登錄後顯示不同的佈局,我該怎麼辦?這是我的登錄活動。有人可以幫助我嗎?我是初學者。謝謝。或者任何人有任何指導初學者做這些的鏈接也可以在這裏發佈。非常感謝大家。如果我想讓用戶和管理員在登錄後顯示不同的佈局,我該怎麼辦?
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_login);
connectionClass = new ConnectionClass();
edtuserid = (EditText) findViewById(R.id.edtuserid);
edtpass = (EditText) findViewById(R.id.edtpass);
btnlogin = (Button) findViewById(R.id.btnlogin);
pbbar = (ProgressBar) findViewById(R.id.pbbar);
pbbar.setVisibility(View.GONE);
shp = this.getSharedPreferences("UserInfo", MODE_PRIVATE);
String userid = shp.getString("UserId", "none");
if (userid.equals("none") || userid.trim().equals("")) {
} else {
Intent i = new Intent(LoginActivity.this, MainActivity.class);
startActivity(i);
finish();
}
btnlogin.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
DoLogin doLogin = new DoLogin();
doLogin.execute("");
}
});
}
public class DoLogin extends AsyncTask<String,String,String>
{
String z = "";
Boolean isSuccess = false;
String userid = edtuserid.getText().toString();
String password = edtpass.getText().toString();
@Override
protected void onPreExecute() {
pbbar.setVisibility(View.VISIBLE);
}
@Override
protected void onPostExecute(String r) {
pbbar.setVisibility(View.GONE);
Toast.makeText(LoginActivity.this,r,Toast.LENGTH_SHORT).show();
if(isSuccess) {
Intent i = new Intent(LoginActivity.this, MainActivity.class);
startActivity(i);
finish();
}
}
@Override
protected String doInBackground(String... params) {
if(userid.trim().equals("")|| password.trim().equals(""))
z = "Please enter User Id and Password";
else
{
try {
Connection con = connectionClass.CONN();
if (con == null) {
z = "Error in connection with SQL server";
} else {
String query = "select * from dbo.demo where UserId='" + userid + "' and Password='" + password + "'";
Statement stmt = con.createStatement();
ResultSet rs = stmt.executeQuery(query);
if(rs.next())
{
z = "Login successfull";
isSuccess=true;
}
else
{
z = "Invalid Credentials";
isSuccess = false;
}
}
}
catch (Exception ex)
{
isSuccess = false;
z = "Exceptions";
}
}
return z;
}
}
謝謝。我創建了我可以知道在登錄憑據後添加什麼代碼 –
在'if(rs.next())'寫了類似於if(rs.getString(「role」)。equals(「admin」)){重定向到管理頁面} else {重定向到用戶頁面}'。 –
if(rs.getString(「AccountType」)。equals(「Seller」)){Intent i = new Intent(LoginActivity.this,MainActivity.class); startActivity(i);如果(rs.getString(「AccountType」)。equals(「Supervisor」)){ } Intent i = new Intent(LoginActivity.this,supervisor.class); startActivity(ⅰ); } 我這樣放這樣仍然不能這是因爲帳戶類型沒有從數據庫中檢索? –