반응형 안드로이드29 edittext 첫글자 판별하기 public void onTextChanged(CharSequence _param1, int _param2, int _param3, int _param4) { if(editrext1.getText().toString().length() ==1) { if (edittext1.getText().toString().substring((int)(0), (int)(1)).equals("-")) { SketchwareUtil.showMessage(getApplicationContext(), "-안됨"); } } } @Override public void beforeTextChanged(CharSequence _param1, int _param2, int _param3, int _param4) { } @Overrid.. 2019. 3. 12. 자바로 타이틀바없애기 onCreate밑에 requestWindowFeature(Window.FEATURE_NO_TITLE); 2019. 3. 12. 초간단계산기 package com.example.alswj.myapplication; import android.os.Bundle; import android.support.v7.app.AppCompatActivity; import android.view.MotionEvent; import android.view.View; import android.widget.Button; import android.widget.EditText; import android.widget.TextView; import android.widget.Toast; public class MainActivity extends AppCompatActivity { Button btnAdd, btnSub, btnMul, btnDiv,btnRim; .. 2019. 3. 7. edittext (onTextChanged) 예제 package com.mycompany.test; import android.app.*; import android.os.*; import android.widget.*; import android.text.TextWatcher; import android.text.Editable; public class MainActivity extends Activity { @Override protected void onCreate(Bundle savedInstanceState) { final EditText et; super.onCreate(savedInstanceState); setContentView(R.layout.main); et = (EditText)findViewById(R.id.et); et.addT.. 2019. 3. 7. 이전 1 ··· 3 4 5 6 7 8 다음 반응형