从列表视图活动之间的数据传递到另一个活动 [英] Passing data between activities from listview to another activity
本文介绍了从列表视图活动之间的数据传递到另一个活动的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
的我成功通过 putExtra
和活动之间发送数据....就像从编辑文本到下一个活动的数据GetExtra
方法和传球为意图的
I am successful in sending data between activities .... Like the data from Edit-text to next activity through putExtra
and GetExtra
methods and passing as intents
- 但我在这个特殊的任务面临的挑战是在涉及
从发送列表视图数据,一个普通的活动
行如何从该行的数据发送到一个新的活动
数据在列表视图中填充从JSON上的点击,所以当
任何想法,
ativity_main.xml
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="fill_parent"
android:layout_height="fill_parent" >
<ListView
android:id="@+id/listViewID"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_gravity="center">
</ListView>
</LinearLayout>
MainActivity.java
public class MainActivity extends Activity {
// url to make request
private static String url = "http://54.218.73.244:7002/";
List<Item> yourData = new ArrayList<Item>();
ProgressDialog progressDialog;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
//Instantiating ProgressDialog with onCreate method
progressDialog=new ProgressDialog(MainActivity.this);
new ParsingAsync().execute();
}
private class ParsingAsync extends AsyncTask<Void, Void, Void>
{
@Override
protected void onPreExecute() {
// TODO Auto-generated method stub
super.onPreExecute();
progressDialog=ProgressDialog.show(MainActivity.this, "", "Please Wait", true, false);
}
@Override
protected Void doInBackground(Void... params) {
// TODO Auto-generated method stub
// Creating JSON Parser instance
JSONObjParser jParser = new JSONObjParser();
// getting JSON string from URL
JSONArray json = jParser.getJSONFromUrl(url);
try {
for (int i = 0; i < json.length(); i++) {
JSONObject c = json.getJSONObject(i);
// Storing each json item in variable
String NAME=c.getString("restaurantNAME");
yourData.add(new Item(NAME));
}
} catch (JSONException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return null;
}
@Override
protected void onPostExecute(Void result) {
// TODO Auto-generated method stub
super.onPostExecute(result);
progressDialog.dismiss();
ListView yourListView = (ListView) findViewById(R.id.listViewID);
ListAdapter customAdapter = new ListAdapter(MainActivity.this, R.layout.itemlistrow, yourData);
yourListView.setAdapter(customAdapter);
yourListView.setOnItemClickListener(new OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view,
int position, long id) {
// When clicked, show a toast with the TextView text
if(position == 0)
{
//code specific to first list item
Intent myIntent = new Intent(MainActivity.this,CopperChimneyDesc.class);
startActivity(myIntent);
}else if(position == 1)
{
//Intent myIntent = new Intent(MainActivity.this,AroyDesc.class);
//startActivity(myIntent);
}
}
});
}
}
}
item.java
public class Item{
private String Name;
public Item(String name){
this.Name = name;
}
public String getName(){
return Name;
}
}
谢谢,
推荐答案
好了,所以你会做
String item = yourData.get(position).getName();
然后就可以使用字符串添加到意图:
Then you can add the string to intent using:
intent.putExtra("restaurent", item);
在另一端如果TextView的你会怎么做。
On the other end if its textview you would do
textView.setText(getIntent().getExtras().getString("restaurent"));
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