EditText editText =（EditText）findViewById（R。 id.editText ）; in “((R id.editText ））”Error cannot resolve symbol ‘EditText’
Today, there was an error when learning from the Android Studio development document. When starting another activity and building an intent, https://developer.android.google.cn/training/basics/firstapp/starting-activity#java
public void sendMessage(View view) {
Intent intent = new Intent(this, DisplayMessageActivity.class);
EditText editText = (EditText) findViewById(R.id.editText);
String message = editText.getText().toString();
intent.putExtra(EXTRA_MESSAGE, message);
startActivity(intent);
}
Solution, view activity_ main.xml , text edit box section
<EditText
android:id="@+id/editTextTextPersonName3"
Change the EditText in the SendMessage method to the corresponding, I’m here edittexttextpersonname3, as shown in the figure
public void sendMessage(View view) {
Intent intent = new Intent(this, DisplayMessageActivity.class);
EditText editText = (EditText) findViewById(R.id.editTextTextPersonName3);
String message = editText.getText().toString();
intent.putExtra(EXTRA_MESSAGE, message);
startActivity(intent);
}
