我想將編輯后的文本值從一個活動傳遞到另一個活動，然后在 recyclerView 中顯示?？赡芪冶仨毎阎捣旁诘仁綐擞浵?？但我不知道如何將編輯后的文本值放入其中。我想從這個類傳遞數據public class addEvent extends AppCompatActivity {public void addEvent(View view){ EditText timeEditText = findViewById(R.id.timeEditText); EditText descriptionEditText = findViewById(R.id.descriptionEditText); Intent intent = new Intent(getApplicationContext(), events.class); String timeInfo = timeEditText.getText().toString(); String descriptionInfo = descriptionEditText.getText().toString(); intent.putExtra("time", timeInfo ); intent.putExtra("description", descriptionInfo);}public void events(View view){ Intent intent1 = new Intent(getApplicationContext(), events.class); startActivity(intent1);}@Overrideprotected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_add_event);}}
3 回答
慕桂英4014372
TA貢獻1871條經驗 獲得超13個贊
您必須從定義附加功能的同一范圍內調用 startActivity：
public void addEvent(View view){
EditText timeEditText = findViewById(R.id.timeEditText);
EditText descriptionEditText = findViewById(R.id.descriptionEditText);
Intent intent = new Intent(getApplicationContext(), events.class);
String timeInfo = timeEditText.getText().toString();
String descriptionInfo = descriptionEditText.getText().toString();
intent.putExtra("time", timeInfo );
intent.putExtra("description", descriptionInfo);
startActivity(intent);//add this
}
元芳怎么了
TA貢獻1798條經驗 獲得超7個贊
在您的 addEvent() 方法中，
public void addEvent(View view){
//your code
Intent intent = new Intent(addEvent.this, events.class);
Bundle bundle = new Bundle();
bundle.putString("time", timeInfo);
bundle.putString("description",descriptionInfo);
intent.putExtras(bundle);
startActivity(intent);
}
然后，在您的事件活動和 onCreate() 方法中，
Bundle bundle = getIntent().getExtras();
String time = bundle.getString("time");
String description = bundle.getString("description");
ArrayList<ListItem> arrayList = new ArrayList<>();
ListItem listItem = new ListItem(time, description);
arrayList.add(listItem);
adapter = new MyAdapter(this, arrayList);
recyclerView.setAdapter(adapter);
這將完成您的工作。
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