在ListView中启用电话呼叫

Question

在互联网上进行了大量的研究后，我找不到如何在列表视图中启用电话呼叫的答案。下面是我的示例代码:假设我有一个包含50家医院的列表，其中包含这些医院的电话联系方式

public class Medical extends ListActivity {

static final ArrayList<HashMap<String,String>> list = 
    new ArrayList<HashMap<String,String>>();

/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.bus_main);
    SimpleAdapter adapter = new SimpleAdapter(
        this,
        list,
        R.layout.rowview,
        new String[] {"title","address","phone"},
        new int[] {R.id.text1,R.id.text2, R.id.text3}
    );     
    populateList();
    setListAdapter(adapter);      



}

private void populateList() {
    HashMap<String,String> 
    map = new HashMap<String,String>();
    map.put("title","UHS Hospital");
    map.put("address", "Street 54");
    map.put("phone", "4077000");
    list.add(map);
    map = new HashMap<String,String>();
    map.put("title","Calvary Hospital");
    map.put("address", "Street 43");
    map.put("phone", "2362491");
    list.add(map);
}
}

如何根据医院的单个电话号码详细信息(text3)启用对所有listview条目的电话呼叫。

Answer 1

将此方法添加到您的活动中：

public class Medical extends ListActivity {

static final ArrayList<HashMap<String,String>> list = 
        new ArrayList<HashMap<String,String>>();

    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        SimpleAdapter adapter = new SimpleAdapter(
            this,
            list,
            R.layout.rowview,
            new String[] {"title","address","phone"},
            new int[] {R.id.textView1,R.id.textView2, R.id.textView3}
        );     
        populateList();
        setListAdapter(adapter);      



    }
    protected void onListItemClick (ListView l, View v, int position, long id){
        super.onListItemClick(l,v,position,id);
        if(position>=0 && position<list.size()) {
            HashMap<String, String> tmp = list.get(position);
            if(tmp.containsKey("phone")) {
                String tel = tmp.get("phone");
                Intent callIntent = new Intent(Intent.ACTION_CALL);
                callIntent.setData(Uri.parse("tel:"+tel));
                startActivity(callIntent);
            }
        }
    }
    private void populateList() {
        HashMap<String,String> 
        map = new HashMap<String,String>();
        map.put("title","UHS Hospital");
        map.put("address", "Street 54");
        map.put("phone", "4077000");
        list.add(map);
        map = new HashMap<String,String>();
        map.put("title","Calvary Hospital");
        map.put("address", "Street 43");
        map.put("phone", "2362491");
        list.add(map);
    }

  }

并添加

<uses-permission android:name="android.permission.CALL_PHONE" />

在您的清单中

注意:此代码不检查数字是否有效。