四个活动不显示吐司
问题描述:
我有四个活动:四个活动不显示吐司
活动A
private void addCard() {
Intent intent = new Intent(MainActivity.this, GetNumberActivity.class);
startActivityForResult(intent, REQUEST_CODE_CREATE);
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (requestCode == REQUEST_CODE_CREATE) {
if (resultCode == RESULT_OK) {
if (data.hasExtra("data")) {
// Card has been create
Toast.makeText(getApplication(), "Karata została wygenerowana.", Toast.LENGTH_SHORT).show();
}
}
}
}
活动B
Intent intent = new Intent(GetNumberActivity.this, ScanQrCodeActivity.class);
intent.putExtra(EXTRA_MESSAGE, uunitValue);
startActivityForResult(intent, REQUEST_CODE);
然后在第二活动我将数据传递到所述第三活动。
活动Ç
Card card = new Card(path3, base32, nameCard, intervalTotp, passwordHotp, getDate(), expirationDate, hotpValue);
Intent intent = new Intent(ScanQrCodeActivity.this, Stage3Activity.class);
intent.putExtra("card", card);
startActivity(intent);
finish();
活动d
Intent data = new Intent(Stage3Activity.this,MainActivity.class);
data.putExtra("data", card);
startActivityForResult(data, RESULT_OK);
在按下上活动A按钮,未图示的吐司。
答
您需要如下
if (resultCode == RESULT_OK) {
if (requestCode == REQUEST_CODE_CREATE) {
if (data.hasExtra("data")) {
// Card has been create
Toast.makeText(getApplication(), "Karata została wygenerowana.", Toast.LENGTH_SHORT).show();
}
}
}
首先检查RESULT_OK
更新您的代码,然后进一步进行
编码快乐!
+0
广告更新但没有显示吐司 – Ewelina
你有没有'的setResult()'地方? –
阅读关于从活动中获取结果https://developer.android.com/reference/android/app/Activity.html#StartingActivities –
尝试使用Intent data = new Intent(); data.putExtra(“data”,card); setResult(RESULT_OK,data);完成();'而不是您的代码在活动D –