要讀取聯絡人資料記得Manifest.xml中要加入
Launch這個AP後, 會撈出Device中聯絡人的資料, 列出有人名(ContactsContract.Contacts.DISPLAY_NAME有值)的資料, 並抓出聯絡人圖片, 如果沒設的就顯示⊕
本範例目的在自行更換圖示, 所以用了兩個Activity -> 選擇要換圖的item後 -> open另一個Activity選圖
 |
| 換換換~ |
 |
| 帶有圖片的Toast |
如此我們便可以任意更換聯絡人圖示~不過這個AP並沒有真正寫入資料到ContactsContract.Contacts,也沒有建立資料庫存放, 所以關閉後所有的變更就會不見囉.
ContactPhotoActivity.java
package com.tsots.GridView_Contact_ChangePhoto;
import java.io.ByteArrayOutputStream;
import java.util.ArrayList;
import java.util.List;
import android.app.Activity;
import android.content.Context;
import android.content.Intent;
import android.database.Cursor;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.os.Bundle;
import android.provider.ContactsContract;
import android.provider.ContactsContract.Contacts;
import android.util.Log;
import android.view.View;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.GridView;
public class ContactPhotoActivity extends Activity
{
Context context = ContactPhotoActivity.this;
List total_contact_id= new ArrayList();
List contact_name= new ArrayList();
List contact_photo= new ArrayList();
GridView g1;
String photoId;
String tag = "com.tsots.GridView_Contact_ChangePhoto / ContactPhotoActivity.java";
int num_contact=0;
int num_contact_photo=0;
int contact_id;
int photo;
Bitmap photoBitmap;
Bitmap tmp_photoBitmap;
Bitmap map;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
g1 = (GridView) findViewById (R.id.gridview1);
//陣列內容: 從contact撈出有顯示名稱的資料
final String[] selectNameColumn = new String[]{
ContactsContract.Contacts._ID,
ContactsContract.Contacts.DISPLAY_NAME
};
final Cursor cursor_ContactName = getContentResolver().query(
Contacts.CONTENT_URI, //要查詢的表格
selectNameColumn, //要回傳的欄位組合
null,
null,
null
);
try
{
cursor_ContactName.moveToFirst();
do
{
/*****************************聯絡人在被建立時該id***************************************
* int idColumn = cursor_ContactName.getColumnIndex(ContactsContract.Contacts._ID);
* String contactId = cursor_ContactName.getString(idColumn);//會丟入59筆資料
*****************************等於*****************************************************/
String contactId = cursor_ContactName.getString(0); //回傳有DISPLAY_NAME的資料,個人Device有59筆
/*****************************聯絡人姓名***********************************************
* final int nameColumn = cursor_ContactName.getColumnIndex(ContactsContract.Contacts.DISPLAY_NAME);
* String contactName = cursor_ContactName.getString(nameColumn);
*****************************等於*****************************************************/
String contactName = cursor_ContactName.getString(1);
try
{
byte[] photo = getPhoto(contactId); //只會得到24筆資料
num_contact++;
map = BitmapFactory.decodeByteArray(photo, 0, photo.length);
total_contact_id.add(String.valueOf(contactId));
contact_name.add(num_contact + " " + String.valueOf(contactName));
contact_photo.add(map);
}
catch(Exception e)
{
System.out.println("e = "+e);
}
}while(cursor_ContactName.moveToNext());
Adapter_ContactPhotoActivity adapter = new Adapter_ContactPhotoActivity(
this,
contact_name,
contact_photo
);
g1.setNumColumns(3); //每排3筆資料
g1.setAdapter(adapter); //自訂的Adapter
/*
* 加入GridView的點擊事件
* 記錄user點選的位置到"CONTACT_POSITION", 這個數值是在PhotoSelect.java中選好換圖事件後,
* 所要對哪個聯絡人欄位變更資訊的依據
*/
class ItemClickListener implements OnItemClickListener
{
public void onItemClick(AdapterView arg0,//The AdapterView where the click happened
View v, //The view within the AdapterView that was clicked
int position, //The position that be clicked
long id //The row id of the item that was clicked
)
{
Intent intent = new Intent(context, PhotoSelect.class);
Bundle bundle = new Bundle();
bundle.putInt("CONTACT_POSITION", position);
intent.putExtras(bundle);
Log.i(tag, "select position : "+position);
Log.i(tag, "select contact_name : "+contact_name.get(position));
startActivityForResult(intent,0);
}
}
g1.setOnItemClickListener(new ItemClickListener());
}
finally
{
cursor_ContactName.close();
}
}
/*
* 這個function負責從聯絡人中撈出有PHOTO_ID的資料, 並以byte[]的型態回傳
*/
public byte[] getPhoto(String people_id)
{
byte[] contactIcon = null;
String photo_id = null;
String selection1 = ContactsContract.Contacts._ID + " = " + people_id;
Cursor cur_select_name = getContentResolver().query(
ContactsContract.Contacts.CONTENT_URI, /*搜尋對象*/
null,
selection1, /*條件*/
null,
null
);
//會丟入59筆資料
if (cur_select_name.getCount() > 0)
{
cur_select_name.moveToFirst();
photo_id = cur_select_name.getString(cur_select_name.getColumnIndex(ContactsContract.Contacts.PHOTO_ID));
}
String[] projection = new String[] {ContactsContract.Data.DATA15};
String select_photo = ContactsContract.Data._ID + " = " + photo_id; //只抓有photo的data
//String selection = ContactsContract.Data._ID; //抓所有有名字的data, 且沒有抓到photo值
Cursor cur_select_photo = getContentResolver().query(
ContactsContract.Data.CONTENT_URI, //要查詢的表格
projection, //要回傳的欄位組合
select_photo, //符合這個限制資料的才會回傳
null, //前一個參數的參數
null //排序
);
//會丟入59筆資料
cur_select_photo.moveToFirst();
/*
* 若由DISPLAY_NAME過濾後的資料裡, 沒有聯絡人圖片的, 統一給一個圖示, 從.png裡抓
*/
if(cur_select_photo.getCount() == 0)
{
//將圖檔轉成Bitmap
tmp_photoBitmap = BitmapFactory.decodeResource(getResources(), R.drawable.widget_stock_addnewstock_btn_normal);
ByteArrayOutputStream baos = new ByteArrayOutputStream();
//將.png的圖檔轉成Bitmap
tmp_photoBitmap.compress(Bitmap.CompressFormat.PNG, 100, baos);
contactIcon = baos.toByteArray();
return contactIcon;
}
else
{
//只會得到24筆資料
contactIcon = cur_select_photo.getBlob(0);
return contactIcon;
}
}
/*
* 從PhotoSelect.java操作完選圖的動作
* 傳回"CONTACT_POSITION"和"CONTACT_PHOTO"到ContactPhotoActivity.java
*/
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data)
{
super.onActivityResult(requestCode, resultCode, data);
switch(resultCode)
{
case RESULT_OK:
Bundle bundle_from_PhotoSelect = data.getExtras();
contact_id = bundle_from_PhotoSelect.getInt("CONTACT_POSITION");
photo = bundle_from_PhotoSelect.getInt("CONTACT_PHOTO");
changePhoto(contact_id, photo);
break;
}
}
public void changePhoto(int id, int photo)
{
tmp_photoBitmap = BitmapFactory.decodeResource(getResources(), photo); //將int轉成Bitmap
ByteArrayOutputStream baos_from_PhotoSelect = new ByteArrayOutputStream(); //將Bitmap轉成ByteArrayOutStream
tmp_photoBitmap.compress(Bitmap.CompressFormat.PNG, 100, baos_from_PhotoSelect);
byte[] byte_from_PhotoSelect = baos_from_PhotoSelect.toByteArray(); //將ByteArrayOutStream轉成byte
map = BitmapFactory.decodeByteArray(byte_from_PhotoSelect, 0, byte_from_PhotoSelect.length);//將byte轉成Bitmap
contact_photo.set(id, map); //可以改變contact_photo
//contact_name.set(id, "xxx"); //可以改變contact_name
Adapter_ContactPhotoActivity adapter = new Adapter_ContactPhotoActivity(
this,
contact_name,
contact_photo
);
g1.setNumColumns(3); //每排3筆資料
g1.setAdapter(adapter); //自訂的Adapter
}
} //
PhotoSelect.java
package com.tsots.GridView_Contact_ChangePhoto;
import android.app.Activity;
import android.app.AlertDialog;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.Matrix;
import android.os.Bundle;
import android.view.View;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.GridView;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.TextView;
import android.widget.Toast;
public class PhotoSelect extends Activity
{
Context context = PhotoSelect.this;
Adapter_PhotoSelect adapter = new Adapter_PhotoSelect(this);
Intent intent;
Bundle bundle;
int contact_id;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
//取得從ContactPhotoActivity.java intent來的bundle資料
intent=this.getIntent();
bundle = intent.getExtras();
contact_id = bundle.getInt("CONTACT_POSITION");
GridView gridview = (GridView) findViewById(R.id.gridview1);
gridview.setNumColumns(3);
gridview.setAdapter(adapter);
gridview.setOnItemClickListener(new OnItemClickListener()
{
public void onItemClick(AdapterView parent, final View v, final int position, final long id)
{
ImageView iv = new ImageView(context);
iv.setImageResource(adapter.mThumbIds[position]);
/*
* 建立一個AlertDialog, 除了預覽選到的圖片外
* PositiveButton會傳回"CONTACT_PHOTO","CONTACT_POSITION"的值到前一個畫面
* NegativeButton則退出AlertDialog
*/
new AlertDialog.Builder(context)
.setTitle(getResources().getString(R.string.alertdialog_title))
.setView(iv)
.setPositiveButton(getResources().getString(R.string.alertdialog_PositiveButton),
new DialogInterface.OnClickListener()
{
public void onClick(DialogInterface dialog, int which)
{
toastWithPhoto(position, v);
bundle.putInt("CONTACT_PHOTO", adapter.mThumbIds[position]);
bundle.putInt("CONTACT_POSITION", contact_id);
intent.putExtras(bundle);
//以RESULT_OK標籤識別換圖的動作成不成立
PhotoSelect.this.setResult(RESULT_OK, intent);
//結束此Activity
PhotoSelect.this.finish();
}
})
.setNegativeButton(getResources().getString(R.string.alertdialog_NegativeButton),
new DialogInterface.OnClickListener()
{
public void onClick(DialogInterface dialog, int which)
{
}
})
.show();
}
});
}
public void toastWithPhoto(int position, View v)
{
ImageView iv = new ImageView(context);
photoChangeSize(position, iv);
TextView tv = new TextView(context);
tv.setText(String.valueOf(position));
LinearLayout lay = new LinearLayout(context);
lay.setOrientation(LinearLayout.HORIZONTAL);
Toast toast = Toast.makeText(context, getResources().getString(R.string.toast_text) + tv.getText(), Toast.LENGTH_SHORT);
View view = toast.getView();
lay.addView(view);
lay.addView(iv);
toast.setView(lay);
toast.show();
}
public void photoChangeSize(int position, ImageView iv)
{
Matrix matrix = new Matrix();
float scaleWidth = (float) 0.5;
float scaleHeigh = (float) 0.5;
matrix.postScale(scaleWidth, scaleHeigh);
Bitmap bmp = BitmapFactory.decodeResource(getResources(), adapter.mThumbIds[position]);
int bmpWidth = bmp.getWidth();
int bmpHeigh = bmp.getHeight();
Bitmap resizebmp = Bitmap.createBitmap(bmp,0,0, bmpWidth, bmpHeigh, matrix, true);
iv.setImageBitmap(resizebmp);
}
}
ContactPhotoActivity.java的Adapter, 設定GridView的型態是一個ImageView加一個TextView
Adapter_ContactPhotoActivity.java
package com.tsots.GridView_Contact_ChangePhoto;
import java.util.List;
import android.content.Context;
import android.graphics.Bitmap;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.ImageView;
import android.widget.TextView;
public class Adapter_ContactPhotoActivity extends BaseAdapter
{
private Context photoadapter;
List _contact_name;
List _contact_photo;
String tag = "com.tsots.GridView_Contact_ChangePhoto / Adapter_ContactPhotoActivity.java";
public Adapter_ContactPhotoActivity(Context con,List contact_name, List contact_photo)
{
photoadapter = con;
_contact_name = contact_name;
_contact_photo = contact_photo;
}
public int getCount()
{
//return _items.length;
return _contact_name.size();
}
public Object getItem(int position)
{
return _contact_name.get(position);
}
public long getItemId(int position)
{
return position;
}
/*
* 從layout contactactivity_adapter.xml中定義一個TextView與一個ImageView欄位來放置聯絡人圖片與名稱
*/
public View getView(int position, View convertView, ViewGroup parent)
{
LayoutInflater factory = LayoutInflater.from(photoadapter);
View v = (View) factory.inflate(R.layout.adapter_contactphotoactivity, null);
TextView tv = (TextView) v.findViewById(R.id.ItemText);
ImageView iv = (ImageView) v.findViewById(R.id.ItemImage);
tv.setText(_contact_name.get(position).toString());
try
{
iv.setImageBitmap(_contact_photo.get(position));
}
catch(Exception e)
{
Log.e(tag, String.valueOf(e));
}
return v;
}
}
PhotoSelect.java的Adapter, 設定GridView的型態是一個ImageView
Adapter_PhotoSelect.java
package com.tsots.GridView_Contact_ChangePhoto;
import android.content.Context;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.GridView;
import android.widget.ImageView;
public class Adapter_PhotoSelect extends BaseAdapter
{
private Context mContext;
public Adapter_PhotoSelect(Context c)
{
mContext = c;
}
public int getCount()
{
return mThumbIds.length;
}
public Object getItem(int position)
{
return null;
}
public long getItemId(int position)
{
return 0;
}
// create a new ImageView for each item referenced by the Adapter
public View getView(int position, View convertView, ViewGroup parent)
{
ImageView imageView;
if (convertView == null)
{
imageView = new ImageView(mContext);
imageView.setLayoutParams(new GridView.LayoutParams(110, 110));
imageView.setScaleType(ImageView.ScaleType.CENTER_CROP);
imageView.setPadding(8, 8, 8, 8);
}
else
{
imageView = (ImageView) convertView;
}
imageView.setImageResource(mThumbIds[position]);
return imageView;
}
public Integer[] mThumbIds =
{
R.drawable.pic_01, R.drawable.pic_02,
R.drawable.pic_03, R.drawable.pic_04,
R.drawable.pic_05, R.drawable.pic_06,
R.drawable.pic_07, R.drawable.pic_08,
R.drawable.pic_09, R.drawable.pic_10,
R.drawable.pic_11, R.drawable.pic_12,
R.drawable.pic_13, R.drawable.pic_14,
R.drawable.pic_15, R.drawable.pic_16,
R.drawable.pic_17, R.drawable.pic_18,
R.drawable.pic_19, R.drawable.pic_20,
R.drawable.pic_21, R.drawable.pic_22,
R.drawable.pic_23, R.drawable.pic_24,
R.drawable.pic_25, R.drawable.pic_26,
R.drawable.pic_27, R.drawable.pic_28,
R.drawable.pic_29, R.drawable.pic_30,
R.drawable.pic_31, R.drawable.pic_32,
R.drawable.pic_33, R.drawable.pic_34
};
}
請問有完整檔案借看嗎ˊˋ
回覆刪除正在學這個 拜託嚕
gn01672966@gmail.com
或者放網上下載也可以 感謝您~~