如何打开联系人当我点击main.xml中定义的按钮 [英] how do i open contacts when i click a button defined in main.xml

问题描述

我在开发Android的一个GPS跟踪应用程序。我做了与显示地图ñ东西。现在我想打一个按钮在上面点击它会显示联系人的时候，然后，当我选择联系人就应该告诉我他或她的位置。 请帮我这个。 谢谢你。

I am developing a gps tracking app in android. I am done with displaying the map n stuff. Now I want to make a button on top which when clicked would display the contacts, Then when I select the contact it should show me his or her location. Please help me with this. Thank you.

推荐答案

您可以通过设置 OnClickListener 上的按钮设置按钮点击事件具有以下code和使用意向调用ContactPicker活动：

You can set an Event on Button click by setting an OnClickListener on the Button with the following code, and use Intent to call ContactPicker activity:

button.setOnClickListener(new OnClickListener() {
            @Override
            public void onClick(View v) {
                 Intent intent= new Intent(Intent.ACTION_PICK,  Contacts.CONTENT_URI);

        startActivityForResult(intent, PICK_CONTACT);

            }
        });

和 onActivityResult（）处理联系人的URI加载联系人的详细信息。

and in onActivityResult() process the contact uri to load details of contact.

@Override
public void onActivityResult(int reqCode, int resultCode, Intent data) {
  super.onActivityResult(reqCode, resultCode, data);

  switch (reqCode) {
    case (PICK_CONTACT) :
      if (resultCode == Activity.RESULT_OK) {
        Uri contactData = data.getData();
        Cursor c =  managedQuery(contactData, null, null, null, null);
        if (c.moveToFirst()) {
          String name = c.getString(c.getColumnIndex(ContactsContract.Contacts.DISPLAY_NAME));
          // TODO Fetch other Contact details as you want to use

        }
      }
      break;
  }
}

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