Question

我正在创建一个简单的应用程序，用于检索每个联系人的姓名和电话号码，并在列表视图中显示该联系人的照片以及该行开头的缩略图大小的图像视图。

我已经设法检索并显示了名称和数字，但在经过许多教程和堆栈后却无法显示照片。

我最终将它回滚到显示名称和号码。

任何人都可以帮助联系我们的照片，我在下面提供了我的代码。

提前致谢！

---联系getter和setters --- 此方法正确获取名称和数字，但我不确定是否正确获取照片。

 package content;

 import android.net.Uri;


 public class ContactBean {
private String name;
private String phoneNo;
private Uri proPic;

public String getName() {
    return name;
}
public void setName(String name) {
    this.name = name;
}
public String getPhoneNo() {
    return phoneNo;
}
public void setPhoneNo(String phoneNo) {
    this.phoneNo = phoneNo;
}

public Uri getPhotoUri() {
    return this.proPic;
}

public void setPhotoUri(Uri photoUri) {
    this.proPic = proPic;
}

}

--- --- BackUpListActivity

package backUpContacts;

import java.io.IOException;
import java.io.InputStream;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Comparator;
import java.util.List;

import backUpContacts.BackUpListActivity;

import com.example.contactflipper.R;

import content.ContactBean;


 import android.app.Activity;
import android.app.AlertDialog;
import android.content.ContentUris;
import android.content.DialogInterface;
import android.content.Intent;
import android.database.Cursor;
import android.graphics.Bitmap;
 import android.graphics.BitmapFactory;
import android.net.Uri;
import android.os.Bundle;
 import android.provider.ContactsContract;
import android.view.View;
import android.widget.AdapterView;
 import android.widget.ImageView;
import android.widget.ListView;
import android.widget.Toast;
import android.widget.AdapterView.OnItemClickListener;

public class BackUpListActivity extends Activity implements
OnItemClickListener {

private ListView listView;
private List<ContactBean> list = new ArrayList<ContactBean>();
private String contactID;

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

    listView = (ListView) findViewById(R.id.list);
    listView.setOnItemClickListener(this);
    String image_uri = "";
    Bitmap bitmap = null;

    Cursor phones = getContentResolver().query(
            ContactsContract.CommonDataKinds.Phone.CONTENT_URI, null,  null,
            null, null);
    while (phones.moveToNext()) {

        String name = phones
                .getString(phones
                         .getColumnIndex(ContactsContract.CommonDataKinds.Phone.DISPLAY_NAME));

        String phoneNumber = phones
                .getString(phones
                        .getColumnIndex(ContactsContract.CommonDataKinds.Phone.NUMBER));


        ContactBean objContact = new ContactBean();
        objContact.setName(name);
        objContact.setPhoneNo(phoneNumber);
        list.add(objContact);

    }
    phones.close();

    BackUpListAdapter objAdapter = new BackUpListAdapter(
            BackUpListActivity.this, R.layout.save_list_row, list);
    listView.setAdapter(objAdapter);

    if (null != list && list.size() != 0) {
        Collections.sort(list, new Comparator<ContactBean>() {

            @Override
            public int compare(ContactBean lhs, ContactBean rhs) {
                return lhs.getName().compareTo(rhs.getName());
            }
        });
        AlertDialog alert = new AlertDialog.Builder(
                BackUpListActivity.this).create();
        alert.setTitle("");

        alert.setMessage(list.size() + " Contact Found!!!");

        alert.setButton("OK", new DialogInterface.OnClickListener() {

            @Override
            public void onClick(DialogInterface dialog, int which) {
                dialog.dismiss();
            }
        });
        alert.show();

    } else {
        showToast("No Contact Found!!!");
    }
}

private void showToast(String msg) {
    Toast.makeText(this, msg, Toast.LENGTH_SHORT).show();
}


@Override
public void onItemClick(AdapterView<?> listview, View v, int position,
        long id) {
    ContactBean bean = (ContactBean) listview.getItemAtPosition(position);
    //implement something on the click of each listed item - bean
}

}

--- --- BackUpListAdapter

package backUpContacts;

import java.util.ArrayList;
import java.util.List;

import viewContacts.GridAdapter.ViewHolder;

import com.example.contactflipper.R;

 import content.ContactBean;

import android.app.Activity;
import android.content.Context;
import android.graphics.drawable.Drawable;
 import android.text.Html;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.view.View.OnClickListener;
import android.widget.ArrayAdapter;
import android.widget.CheckBox;
import android.widget.CompoundButton;
import android.widget.ImageView;
import android.widget.TextView;

public class BackUpListAdapter extends ArrayAdapter<ContactBean> implements  OnClickListener{

private Activity activity;
private List<ContactBean> items;
private ArrayList<Boolean> itemChecked = new ArrayList<Boolean>();
private int row;
private ContactBean objBean;

public BackUpListAdapter(Activity act, int row, List<ContactBean> items) {
    super(act, row, items);

    this.activity = act;
    this.row = row;
    this.items = items;

    for (int i = 0; i < this.getCount(); i++) {
        itemChecked.add(i, false); // initializes all items value with false
    }

}

@Override
public View getView(final int position, View convertView, ViewGroup parent) {
    View view = convertView;
    ViewHolder holder;
    if (view == null) {
        LayoutInflater inflater = (LayoutInflater) activity
                .getSystemService(Context.LAYOUT_INFLATER_SERVICE);
        view = inflater.inflate(row, null);

        holder = new ViewHolder();
        view.setTag(holder);


    } else {
        holder = (ViewHolder) view.getTag();
    }

    if ((items == null) || ((position + 1) > items.size()))
        return view;

    objBean = items.get(position);

    holder.tvname = (TextView) view.findViewById(R.id.tvname);
    holder.tvPhoneNo = (TextView) view.findViewById(R.id.tvphone);
    holder.ivPic = (ImageView) view.findViewById(R.id.profile_pic);

    if (holder.tvname != null && null != objBean.getName()
            && objBean.getName().trim().length() > 0) {
        holder.tvname.setText(Html.fromHtml(objBean.getName()));
    }
    if (holder.tvPhoneNo != null && null != objBean.getPhoneNo()
            && objBean.getPhoneNo().trim().length() > 0) {
        holder.tvPhoneNo.setText(Html.fromHtml(objBean.getPhoneNo()));
    }


    final CheckBox cBox = (CheckBox) view.findViewById(R.id.chkMarkContact); // your
    // CheckBox
    cBox.setOnClickListener(new OnClickListener() {

        public void onClick(View v) {

            CheckBox cb = (CheckBox) v.findViewById(R.id.chkMarkContact);

            if (cb.isChecked()) {
                itemChecked.set(position, true);
                // do some operations here
            } else if (!cb.isChecked()) {
                itemChecked.set(position, false);
                // do some operations here
            }
        }
    });
    cBox.setChecked(itemChecked.get(position)); // this will Check or Uncheck the
    // CheckBox in ListView
    // according to their original
    // position and CheckBox never
    // loss his State when you
    // Scroll the List Items.



    return view;
}

public class ViewHolder {
    public TextView tvname, tvPhoneNo;
    public ImageView ivPic;
}

@Override
public void onClick(View arg0) {
    // TODO Auto-generated method stub

}

}

在上面的代码中，我相信我需要类似于此的代码

if (holder.tvPhoneNo != null && null != objBean.getPhoneNo()
            && objBean.getPhoneNo().trim().length() > 0) {
        holder.tvPhoneNo.setText(Html.fromHtml(objBean.getPhoneNo()));
    }

除了要显示的照片。

我也已经在xml中创建了一个imageview，并在上面的代码

中声明了它

  holder.ivPic = (ImageView) view.findViewById(R.id.profile_pic);

Answer 1

您尝试获取联系人的联系人ID（phonenumber）并使用Bitmapfactory解码图像，如下面的工作代码所示。

InputStream inputStream=null;
String[] projection = new String[]{Contacts._ID};
Uri contactUri = Uri.withAppendedPath(Contacts.CONTENT_FILTER_URI,Uri.encode(phnumber));
Cursor c = getContentResolver().query(contactUri, projection,
    null, null, null);
if (c.moveToFirst()) {
    long contactId=c.getColumnIndex(Contacts._ID);

    inputStream = Contacts.openContactPhotoInputStream(activity.getContentResolver(),
                            ContentUris.withAppendedId(Contacts.CONTENT_URI, cntID));
    c.close();

}

使用输入流来获取位图

Bitmap bitmap= BitmapFactory.decodeStream(inputStream);
 holder.ivPic.setImageBitmap(bitmap);

Android - 检索联系人照片和显示

1 个答案: