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[kotlin] android Kotlin과 java 사용(startActivity, setOnClickListener)

android startActiviy 방법 - java Intent intent = new Intent(this, 새로운 액티비티.class); startActivity(intent); - kotlin val intent = Intent(this,새로운액티비티::class.java) startActivity(intent) android setOnClickListener -java clickBT.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { if (editText.getText().toString().isEmpty()) { Toast.makeText(MainActivity.this, "빈값입니다"..
Kotlin/개념 2021. 9. 9. 14:35
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