Ich erstelle eine einfache Anwendung, die den Namen und die Telefonnummer jedes einzelnen Kontakts abruft und in einer Listenansicht zusammen mit dem Foto des Kontakts in einer Miniaturansicht am Anfang der Zeile anzeigt.

Ich habe es geschafft, den Namen und die Nummer abzurufen und anzuzeigen, aber es ist mir nicht gelungen, das Foto anzuzeigen, nachdem ich viele Tutorials und Stapel durchgearbeitet habe.

Ich habe es schließlich zurückgesetzt, um nur den Namen und die Nummer anzuzeigen.

Kann mir jemand mit dem Kontaktfoto weiterhelfen, ich habe meinen Code unten angegeben.

Danke im Voraus!

--- Contact Getter und Setter --- Diese Methode erhält den Namen und die Nummer richtig, aber ich bin nicht sicher, ob ich das Foto richtig bekomme.

 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

}

}

Im obigen Code glaube ich, dass ich etwas Ähnliches brauche

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

mit Ausnahme der Fotos, die angezeigt werden sollen.

Ich habe auch bereits eine Bildansicht in der XML erstellt und im obigen Code deklariert

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