Question

以下代码帮助我将所有联系人检索到列表中的列表视图中活动，但是我想从中获取选定的联系人行用户将其传递到意图中，但我不确定该怎么做。

示例：用户选择了Suzanne的联系人，我希望能够将“ Suzanne” 名称和数字保存在字符串中并传递给意向

公共类SendWhoosh_SelectContact扩展了ListActivity {

    private static final String TAG = "SendWhoosh";
    ListView listView;
    Cursor cursor;

    @Override
    public long getSelectedItemId()
    {
        // TODO Auto-generated method stub
        return super.getSelectedItemId();
    }

    @Override
    public int getSelectedItemPosition()
    {
        // TODO Auto-generated method stub
        return super.getSelectedItemPosition();
    }

    @Override
    protected void onCreate(Bundle savedInstanceState)
    {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_send_whoosh_select_contact);

        cursor = getContentResolver().query(ContactsContract.CommonDataKinds.Phone.CONTENT_URI, null, null, null, null);
        startManagingCursor(cursor);

        String[] from = {ContactsContract.CommonDataKinds.Phone.DISPLAY_NAME, ContactsContract.CommonDataKinds.Phone.NUMBER, ContactsContract.CommonDataKinds.Phone._ID};
        int[] to = {android.R.id.text1, android.R.id.text2};

        SimpleCursorAdapter listadapter = new SimpleCursorAdapter(this, android.R.layout.simple_list_item_2, cursor, from, to);
        setListAdapter(listadapter);

        listView = getListView();
        listView.setChoiceMode(ListView.CHOICE_MODE_MULTIPLE);


        listView.setOnItemClickListener(new AdapterView.OnItemClickListener()
        {
            @Override
            public void onItemClick(AdapterView<?> parent, View view, int position, long id)
            {

                String phone = ContactsContract.CommonDataKinds.Phone.NUMBER;
                Log.d(TAG, "SendWhoosh: phone " + phone);


                    Intent intent = new Intent(SendWhoosh_SelectContact.this, EnterWhooshAmount.class);;
                    intent.putExtra("Name", name);
                    intent.putExtra("Number", phone);

                    startActivity(intent);

            }
        });
    } 


----------
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="@drawable/whooshbg"
    android:id="@+id/activitywhoosh_screenarea"
    tools:context=".SendWhoosh_SelectContact">

    <LinearLayout
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:id="@+id/li1">

        <ImageView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginLeft="10dp"
            android:layout_marginTop="10dp"
            android:src="@drawable/back"/>

        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginLeft="130dp"
            android:layout_marginTop="15dp"
            android:textColor="@color/white"
            android:text="Whoosh to "/>

    </LinearLayout>


    <LinearLayout
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginTop="50dp"
        android:orientation="vertical">

        <ListView
            android:id="@android:id/list"
            android:layout_width="fill_parent"
            android:layout_height="fill_parent" />

    </LinearLayout>



</RelativeLayout>

Answer 1

设置您的onClickListener（）并按如下所示启动您的意图；

<div id="maindiv">
  <h2 id="signup">Free enrollments end in <img id="myimg" src="https://image.flaticon.com/icons/svg/69/69637.svg"> days!</h2>
<form id="myform">
<label class="labels" for="fname">Firstname</label><br/><input class="inputs" type="text" id="fname"><img id="check1" class="imgs" src=""><br/><br/>
<label class="labels" for="lname">Surname</label><br/><input class="inputs" type="text" id="lname"><img id="check2" class="imgs" src=""><br/><br/>
<label class="labels" for="email">Email</label><br/><input class="inputs" type="text" id="email"><img id="check3" class="imgs" src=""><br/><br/>
<label class="labels" for="pword">Create password</label><br/><input class="inputs" type="password" id="pword"><img id="check4" class="imgs" src=""><br/><br/>
<label class="labels" for="pword2">Confirm password</label><br/><input class="inputs" type="password" id="pword2"><img id="check5" class="imgs" src=""><br/><br/>
<button id="mybtn">Enroll</button>
</form>
</div>

进入EnterWhooshAmount类时，您将获得意图并检索单击的位置，并在此位置下可以检索名称等。可以在EnterWhooshAmount类中获得意图，如下所示；

listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
        @Override
        public void onItemClick(AdapterView<?> adapterView, View view, int position, long l) {
            launchAnotherActivity(position);
        }
    });
}

private void launchAnotherActivity(int position) {
    Intent intent = new Intent(this, EnterWhooshAmount.class);
    intent.putExtra("The_Position", position);
    startActivity(intent);
}

所以，位置是您要查找的整数，因此，您可以在保存该位置的位置检索名称等

Answer 2

listitem onclick侦听器更改此代码即可获取点击项的名称和编号。

listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
            @Override
            public void onItemClick(AdapterView<?> parent, View view, int position, long id) {

                String name = ((TwoLineListItem) view).getText1().getText().toString();
                String number = ((TwoLineListItem) view).getText2().getText().toString();



                Log.d(TAG, "SendWhoosh: phone " + name);
                Intent intent = new Intent(SendWhoosh_SelectContact.this, EnterWhooshAmount.class);;
                intent.putExtra("Name", name);
                intent.putExtra("Number", number);

                startActivity(intent);

            }
        });

在将电话中的所有联系人填充到列表视图之后，如何获取选定的联系人姓名（将其传递到意图）？

2 个答案: