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我是新來的android,我已經創建了兩個活動,其中主要活動包括一個按鈕去secondActivity在第二個活動中,用戶輸入名稱和數據被帶回使用intents.The問題我面臨的主要活動是我想在列表視圖中顯示的數據使用意圖從其他活動傳遞數據並顯示在列表視圖
MainActivity.java
public class MainActivity extends Activity {
Button addcontact;
ListView listview;
//TextView name;
ArrayAdapter<String> listAdapter;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
listview = (ListView) findViewById(R.id.listView1);
TextView name = (TextView) findViewById(R.id.txtname);
addcontact = (Button) findViewById(R.id.addbtn);
addcontact.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Intent i = new Intent(MainActivity.this, SecondActivity.class);
startActivityForResult(i, 1);
savedata();
}
});
}
private void savedata() {
Intent intent = getIntent();
String fName = intent.getStringExtra("fname");
List<String> ListElements = new ArrayList<String>(Arrays.asList(fName));
ArrayAdapter<String> adapter = new ArrayAdapter<String> (MainActivity.this,android.R.layout.simple_list_item_1, ListElements);
listview.setAdapter(adapter);
}
}
SecondActivity.java
公共類SecondActivity延伸活動{
EditText edname;
Button addbtn;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_second);
edname =(EditText) findViewById(R.id.edname);
addbtn = (Button) findViewById(R.id.savebtn);
addbtn.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Intent intent = new Intent(SecondActivity.this, MainActivity.class);
intent.putExtra("fname", edname.getText().toString());
startActivity(intent);
}
});
}}
謝謝rahul: - )....但是什麼是listview的代碼來顯示editText數據... – Gary