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今天很簡單的問題。當我試圖檢索對話框上的按鈕時,我總是收到一個空值。帶按鈕的Android自定義對話框
@Override
public void onRestart() {
super.onRestart();
//must prompt with modal dialog for pin
Dialog dialog = new Dialog(this);
dialog.setOwnerActivity(this);
dialog.setCancelable(false);
//check pin
dialog.setCanceledOnTouchOutside(false);
//set view to enterpin XML screen
dialog.setContentView(R.layout.enterpin);
//register button
//show dialog
dialog.show();
//listen for button being clicked
Button button = (Button) findViewById(R.id.pinlogin);
button.setOnClickListener(new OnClickListener(){
@Override
public void onClick(View v){
EditText editText = (EditText) findViewById(R.id.enterpin);
int enteredPin = Integer.parseInt(editText.getText().toString());
SharedPreferences sharedP = getPreferences(MODE_PRIVATE);
int temp = sharedP.getInt("pin", 0);
if(enteredPin==temp){
pinCheck = true;
}else{
pinCheck = false;
}
}
});
if(pinCheck){
dialog.dismiss();
}
}
是的按鈕存在,沒有我沒有mispell它的參考。是的,我已經清理了這個項目並重新開啓了eclipse。當我清楚地調用setContentView()時,該按鈕如何不與視圖關聯?我相信這很簡單,我從來沒有使用過對話框,一般來說,新的GUI。尤其是Android的