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我在這件事情我的頭撞了幾個小時。我有3個活性,所述活性的開放B和C必須通過數據到活動A. 在活性A,I運行startActivityForResult:Android ActivityForResult之間的3個活動
public static final int REQ_CODE_ACT3 = 2;
@Override
public void onClick(View v) {
Intent intent = null;
intent = new Intent(A.this, B.class);
startActivityForResult(intent, REQ_CODE_ACT3);
}
然後B,將數據傳遞給C.
Intent singc = new Intent(B.this, C.class);
Bundle extras = new Bundle();
singc .putExtra("cto", d.cto);
singc .putExtra("colore", d.colore);
singc .putExtras(extras);
startActivity(singc);
finish();
最後,C應該將數據傳遞給A. 但數據沒有傳遞
lista.setOnItemClickListener(new OnItemClickListener(){
@Override
public void onItemClick(AdapterView<?> parent, View view,int position, long id) {
Dettaglio d = dettagli.get(position);
Intent intent=new Intent();
intent.putExtra("cto", d.cto);
intent.putExtra("colore", d.colore);
setResult(RESULT_OK,intent);
finish();
}
});
如果B打開C,那麼您需要讓C將附加內容傳遞給B,然後在B中打電話給活動結果以將信息傳遞給A. – MrPancake 2014-10-17 16:01:12