Mainactive.java Tuesday, October 31, 2017

Mainacct

import android.support.v7.app.ActionBarActivity;
import android.app.*;
import android.content.*;
import android.os.*;
import android.util.*;
import android.view.*;
import android.widget.*;


public class MainActivity extends ActionBarActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
       
        Button btnExit = (Button) findViewById(R.id.btnExit1);
        Button btnSignin = (Button) findViewById(R.id.btnSignIn);
       
        btnExit.setOnClickListener(new View.OnClickListener() {

@Override
public void onClick(View v) {
finish();
System.exit(0);
}
});
       
        btnSignin.setOnClickListener(new View.OnClickListener() {

@Override
public void onClick(final View v) {
EditText txtUser = (EditText) findViewById(R.id.txtUser);
EditText txtPass = (EditText) findViewById(R.id.txtPassword);

if(txtUser.getText().toString().equals("hoan")&& txtPass.getText().toString().equals("hoan")){
Intent i = new Intent(v.getContext(),lc.class);
startActivity(i);
finish();
}
else{
AlertDialog.Builder builder = new AlertDialog.Builder(MainActivity.this);
  builder.setTitle("Cảnh báo")
   .setMessage("Tên tk hoặc mật khẩu sai . Vui lòng nhập lại !")
   .setPositiveButton(android.R.string.ok, new DialogInterface.OnClickListener() {
       public void onClick(DialogInterface dialog, int which) {
       
       }
    })
   .setIcon(android.R.drawable.ic_secure)
   .show();
}

  Log.d("user",txtUser.getText().toString());
  Log.d("pass",txtPass.getText().toString());
}
});
       
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.main, menu);
        return true;
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        // Handle action bar item clicks here. The action bar will
        // automatically handle clicks on the Home/Up button, so long
        // as you specify a parent activity in AndroidManifest.xml.
        int id = item.getItemId();
        if (id == R.id.action_settings) {
            return true;
        }
        return super.onOptionsItemSelected(item);
    }
}