[英]Return user input from Android EditText field
我是Android開發人員的新手。 和一般的編程。 我有一個用Java作為終端應用程序編寫的基於文本的RPG,並且我試圖將其重新創建為Android應用程序。 但是,我一開始就陷入困境。
如何從EditText視圖返回用戶輸入並將該值存儲在String中?
以下是我為弄清問題而做的一次性項目:
public class MainActivity extends AppCompatActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
String a = "Hello from";
String b = "the other";
String c = "SIDE!";
String d = "What you don't like Adele?";
final String userIn;
final EditText editText = (EditText) findViewById(R.id.editText);
TextView textView = (TextView) findViewById(R.id.viewText);
editText.setOnEditorActionListener(new TextView.OnEditorActionListener() {
@Override
public boolean onEditorAction(TextView v, int actionId, KeyEvent event) {
boolean handled = false;
if (actionId == EditorInfo.IME_ACTION_SEND) {
sendMessage();
handled = true;
}
return handled;
}
private void sendMessage() {
userIn = editText.getText().toString();
}
});
}
我不能更改userIn的值,因為它必須是最終函數才能起作用。 我確定我缺少明顯的東西,但是任何幫助都是偉大的!
在onCreate()之外聲明用戶,並將對其進行更改。 檢查一下:
public class MainActivity extends AppCompatActivity {
String userIn;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
String a = "Hello from";
String b = "the other";
String c = "SIDE!";
String d = "What you don't like Adele?";
final EditText editText = (EditText) findViewById(R.id.editText);
TextView textView = (TextView) findViewById(R.id.viewText);
editText.setOnEditorActionListener(new TextView.OnEditorActionListener() {
@Override
public boolean onEditorAction(TextView v, int actionId, KeyEvent event) {
boolean handled = false;
if (actionId == EditorInfo.IME_ACTION_SEND) {
sendMessage();
handled = true;
}
return handled;
}
private void sendMessage() {
userIn = editText.getText().toString();
}
});
}
聲明:本站的技術帖子網頁,遵循CC BY-SA 4.0協議,如果您需要轉載,請注明本站網址或者原文地址。任何問題請咨詢:yoyou2525@163.com.