如何在imageview按钮上更改选定的联系人图像。
[英]how to change selected contact image on button click from imageview.?
问题描述
in main activity display list of contact. 
在主要活动中显示联系人列表。 now select any contact and open Detail.java Activity. 现在选择任何联系人并打开Detail.java活动。 now i want to set this particular selected contact image from second activity imageview. 现在我想从第二个活动imageview设置这个特定的选定联系人图像。 mainActivity.java mainActivity.java
public class MainActivity extends Activity {
SimpleCursorAdapter mAdapter;
MatrixCursor mMatrixCursor;
Bitmap bitmap;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
// The contacts from the contacts content provider is stored in this cursor
mMatrixCursor = new MatrixCursor(new String[] { "_id","name","photo","details"} );
// Adapter to set data in the listview
mAdapter = new SimpleCursorAdapter(getBaseContext(),
R.layout.lv_layout,
null,
new String[] { "name","photo","details"},
new int[] { R.id.tv_name,R.id.iv_photo,R.id.tv_details}, 0);
// Getting reference to listview
ListView lstContacts = (ListView) findViewById(R.id.lst_contacts);
// Setting the adapter to listview
lstContacts.setAdapter(mAdapter);
// Creating an AsyncTask object to retrieve and load listview with contacts
ListViewContactsLoader listViewContactsLoader = new ListViewContactsLoader();
// Starting the AsyncTask process to retrieve and load listview with contacts
listViewContactsLoader.execute();
lstContacts.setOnItemClickListener(new OnItemClickListener()
{
@SuppressWarnings({ "null", "unused" })
@Override
public void onItemClick(AdapterView<?> parent, View view,int position, long id)
{
ByteArrayOutputStream stream = new ByteArrayOutputStream();
// bitmap.compress(Bitmap.CompressFormat.PNG, 100, stream);
byte[] byteArray = stream.toByteArray();
Intent intent = new Intent(MainActivity.this, detail.class);
// Intent intent = new Intent(Current.this, Next.class);
intent.putExtra("bmp", byteArray); // for image
// intent.putExtra("text", text); //for text
startActivity(intent);
// startActivity(intent);
}
});
}
/** An AsyncTask class to retrieve and load listview with contacts */
private class ListViewContactsLoader extends AsyncTask<Void, Void, Cursor>{
@Override
protected Cursor doInBackground(Void... params) {
Uri contactsUri = ContactsContract.Contacts.CONTENT_URI;
// Querying the table ContactsContract.Contacts to retrieve all the contacts
Cursor contactsCursor = getContentResolver().query(contactsUri, null, null, null,
ContactsContract.Contacts.DISPLAY_NAME + " ASC ");
if(contactsCursor.moveToFirst()){
do{
long contactId = contactsCursor.getLong(contactsCursor.getColumnIndex("_ID"));
Uri dataUri = ContactsContract.Data.CONTENT_URI;
// Querying the table ContactsContract.Data to retrieve individual items like
// home phone, mobile phone, work email etc corresponding to each contact
Cursor dataCursor = getContentResolver().query(dataUri, null,
ContactsContract.Data.CONTACT_ID + "=" + contactId,
null, null);
String displayName="";
String nickName="";
String homePhone="";
String mobilePhone="";
String workPhone="";
String photoPath="" + R.drawable.blank;
byte[] photoByte=null;
String title="";
if(dataCursor.moveToFirst()){
// Getting Display Name
displayName = dataCursor.getString(dataCursor.getColumnIndex(ContactsContract.Data.DISPLAY_NAME ));
do{
// Getting NickName
if(dataCursor.getString(dataCursor.getColumnIndex("mimetype")).equals(ContactsContract.CommonDataKinds.Nickname.CONTENT_ITEM_TYPE))
nickName = dataCursor.getString(dataCursor.getColumnIndex("data1"));
// Getting Phone numbers
if(dataCursor.getString(dataCursor.getColumnIndex("mimetype")).equals(ContactsContract.CommonDataKinds.Phone.CONTENT_ITEM_TYPE)){
switch(dataCursor.getInt(dataCursor.getColumnIndex("data2"))){
case ContactsContract.CommonDataKinds.Phone.TYPE_HOME :
homePhone = dataCursor.getString(dataCursor.getColumnIndex("data1"));
break;
case ContactsContract.CommonDataKinds.Phone.TYPE_MOBILE :
mobilePhone = dataCursor.getString(dataCursor.getColumnIndex("data1"));
break;
case ContactsContract.CommonDataKinds.Phone.TYPE_WORK :
workPhone = dataCursor.getString(dataCursor.getColumnIndex("data1"));
break;
}
}
// Getting Photo
if(dataCursor.getString(dataCursor.getColumnIndex("mimetype")).equals(ContactsContract.CommonDataKinds.Photo.CONTENT_ITEM_TYPE)){
photoByte = dataCursor.getBlob(dataCursor.getColumnIndex("data15"));
if(photoByte != null) {
bitmap = BitmapFactory.decodeByteArray(photoByte, 0, photoByte.length);
// Getting Caching directory
File cacheDirectory = getBaseContext().getCacheDir();
// Temporary file to store the contact image
File tmpFile = new File(cacheDirectory.getPath() + "/wpta_"+contactId+".png");
// The FileOutputStream to the temporary file
try {
FileOutputStream fOutStream = new FileOutputStream(tmpFile);
// Writing the bitmap to the temporary file as png file
bitmap.compress(Bitmap.CompressFormat.PNG,100, fOutStream);
// Flush the FileOutputStream
fOutStream.flush();
//Close the FileOutputStream
fOutStream.close();
} catch (Exception e) {
e.printStackTrace();
}
photoPath = tmpFile.getPath();
}
}
}while(dataCursor.moveToNext());
String details = "";
// Concatenating various information to single string
if(homePhone != null && !homePhone.equals("") )
details = "HomePhone : " + homePhone + "\n";
if(mobilePhone != null && !mobilePhone.equals("") )
details += "MobilePhone : " + mobilePhone + "\n";
if(workPhone != null && !workPhone.equals("") )
details += "WorkPhone : " + workPhone + "\n";
if(nickName != null && !nickName.equals("") )
details += "NickName : " + nickName + "\n";
if(title != null && !title.equals("") )
details += "Title : " + title + "\n";
// Adding id, display name, path to photo and other details to cursor
mMatrixCursor.addRow(new Object[]{ Long.toString(contactId),displayName,photoPath,details});
}
}while(contactsCursor.moveToNext());
}
return mMatrixCursor;
}
@Override
protected void onPostExecute(Cursor result) {
// Setting the cursor containing contacts to listview
mAdapter.swapCursor(result);
}
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.activity_main, menu);
return true;
}
} }
Detail.java
public class detail extends Activity{
protected static final int CAPTURE_NEW_PICTURE = 1;
ImageView photo1;
Button camera, galary,save;
Uri selectedImageUri;
String selectedPath;
Bitmap photo;
private static final int CAMERA_REQUEST = 1888;
public static final String MIMETYPE_FORMALITY = "vnd.android.cursor.item/useformality";
public static final int MEDIA_TYPE_IMAGE = 1;
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.custom_list);
photo1=(ImageView)findViewById(R.id.photo);
camera=(Button)findViewById(R.id.camera);
galary=(Button)findViewById(R.id.galary);
save=(Button)findViewById(R.id.save);
//camera picture
camera.setOnClickListener(new View.OnClickListener()
{
@Override
public void onClick(View v) {
Intent cameraIntent = new Intent(android.provider.MediaStore.ACTION_IMAGE_CAPTURE);
startActivityForResult(cameraIntent, CAMERA_REQUEST);
}
});
//gallery picture
galary.setOnClickListener(new View.OnClickListener()
{
@Override
public void onClick(View v) {
Intent photoPickerIntent = new Intent(Intent.ACTION_GET_CONTENT);
photoPickerIntent.setType("image/*");
startActivityForResult(photoPickerIntent, 1);
}
});
save.setOnClickListener(new View.OnClickListener()
{
@Override
public void onClick(View arg0)
{
// TODO Auto-generated method stub
Context context= getApplicationContext();
Bitmap icon= BitmapFactory.decodeResource(context.getResources(), R.id.photo);
try
{
Intent myIntent = new Intent();
myIntent.setAction(Intent.ACTION_ATTACH_DATA);
myIntent.setType("image/jpeg");
myIntent.putExtra(Intent.EXTRA_STREAM, icon);
startActivity(myIntent);
}
catch (ActivityNotFoundException e)
{
e.printStackTrace();
}
}
});
}
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
if (requestCode == CAMERA_REQUEST && resultCode == RESULT_OK) {
Bitmap photo = (Bitmap) data.getExtras().get("data");
photo1.setImageBitmap(photo);
}
else
{
if (data != null && resultCode == RESULT_OK)
{
Uri selectedImage = data.getData();
String[] filePathColumn = {MediaStore.Images.Media.DATA};
Cursor cursor = getContentResolver().query(selectedImage, filePathColumn, null, null, null);
cursor.moveToFirst();
int columnIndex = cursor.getColumnIndex(filePathColumn[0]);
String filePath = cursor.getString(columnIndex);
cursor.close();
if(photo != null && !photo.isRecycled())
{
photo = null;
}
photo = BitmapFactory.decodeFile(filePath);
photo1.setBackgroundResource(0);
photo1.setImageBitmap(photo);
}
else
{
Log.d("Status:", "Photopicker canceled");
}
}
}
} }
1 个解决方案
解决方案1
2 已采纳 2014-05-26 10:49:47
try this code...it will perfectly work... 尝试这个代码......它将完美地工作......
here is your java class 这是你的java类
public class demo extends Activity
{
SimpleCursorAdapter mAdapter;
MatrixCursor mMatrixCursor;
Bitmap bitmap;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
// The contacts from the contacts content provider is stored in this cursor
mMatrixCursor = new MatrixCursor(new String[] { "_id","name","photo","details"} );
// Adapter to set data in the listview
mAdapter = new SimpleCursorAdapter(getBaseContext(),
R.layout.second,
null,
new String[] { "name","photo","details"},
new int[] { R.id.textView1,R.id.imageView1,R.id.textView2}, 0);
// Getting reference to listview
ListView lstContacts = (ListView) findViewById(R.id.listView1);
// Setting the adapter to listview
lstContacts.setAdapter(mAdapter);
// Creating an AsyncTask object to retrieve and load listview with contacts
ListViewContactsLoader listViewContactsLoader = new ListViewContactsLoader();
// Starting the AsyncTask process to retrieve and load listview with contacts
listViewContactsLoader.execute();
lstContacts.setOnItemClickListener(new OnItemClickListener()
{
@SuppressWarnings({ "null", "unused" })
@Override
public void onItemClick(AdapterView<?> parent, View view,int position, long id)
{
ByteArrayOutputStream stream = new ByteArrayOutputStream();
// bitmap.compress(Bitmap.CompressFormat.PNG, 100, stream);
byte[] byteArray = stream.toByteArray();
Intent intent = new Intent(demo.this, secondactivity.class);
// Intent intent = new Intent(Current.this, Next.class);
intent.putExtra("bmp", byteArray); // for image
// intent.putExtra("text", text); //for text
startActivity(intent);
// startActivity(intent);
}
});
}
/** An AsyncTask class to retrieve and load listview with contacts */
private class ListViewContactsLoader extends AsyncTask<Void, Void, Cursor>{
@Override
protected Cursor doInBackground(Void... params) {
Uri contactsUri = ContactsContract.Contacts.CONTENT_URI;
// Querying the table ContactsContract.Contacts to retrieve all the contacts
Cursor contactsCursor = getContentResolver().query(contactsUri, null, null, null,
ContactsContract.Contacts.DISPLAY_NAME + " ASC ");
if(contactsCursor.moveToFirst()){
do{
long contactId = contactsCursor.getLong(contactsCursor.getColumnIndex("_ID"));
Uri dataUri = ContactsContract.Data.CONTENT_URI;
// Querying the table ContactsContract.Data to retrieve individual items like
// home phone, mobile phone, work email etc corresponding to each contact
Cursor dataCursor = getContentResolver().query(dataUri, null,
ContactsContract.Data.CONTACT_ID + "=" + contactId,
null, null);
String displayName="";
String nickName="";
String homePhone="";
String mobilePhone="";
String workPhone="";
String photoPath="" + R.drawable.ic_launcher;
byte[] photoByte=null;
String title="";
if(dataCursor.moveToFirst()){
// Getting Display Name
displayName = dataCursor.getString(dataCursor.getColumnIndex(ContactsContract.Data.DISPLAY_NAME ));
do{
// Getting NickName
if(dataCursor.getString(dataCursor.getColumnIndex("mimetype")).equals(ContactsContract.CommonDataKinds.Nickname.CONTENT_ITEM_TYPE))
nickName = dataCursor.getString(dataCursor.getColumnIndex("data1"));
// Getting Phone numbers
if(dataCursor.getString(dataCursor.getColumnIndex("mimetype")).equals(ContactsContract.CommonDataKinds.Phone.CONTENT_ITEM_TYPE)){
switch(dataCursor.getInt(dataCursor.getColumnIndex("data2"))){
case ContactsContract.CommonDataKinds.Phone.TYPE_HOME :
homePhone = dataCursor.getString(dataCursor.getColumnIndex("data1"));
break;
case ContactsContract.CommonDataKinds.Phone.TYPE_MOBILE :
mobilePhone = dataCursor.getString(dataCursor.getColumnIndex("data1"));
break;
case ContactsContract.CommonDataKinds.Phone.TYPE_WORK :
workPhone = dataCursor.getString(dataCursor.getColumnIndex("data1"));
break;
}
}
// Getting Photo
if(dataCursor.getString(dataCursor.getColumnIndex("mimetype")).equals(ContactsContract.CommonDataKinds.Photo.CONTENT_ITEM_TYPE)){
photoByte = dataCursor.getBlob(dataCursor.getColumnIndex("data15"));
if(photoByte != null) {
bitmap = BitmapFactory.decodeByteArray(photoByte, 0, photoByte.length);
// Getting Caching directory
File cacheDirectory = getBaseContext().getCacheDir();
// Temporary file to store the contact image
File tmpFile = new File(cacheDirectory.getPath() + "/wpta_"+contactId+".png");
// The FileOutputStream to the temporary file
try {
FileOutputStream fOutStream = new FileOutputStream(tmpFile);
// Writing the bitmap to the temporary file as png file
bitmap.compress(Bitmap.CompressFormat.PNG,100, fOutStream);
// Flush the FileOutputStream
fOutStream.flush();
//Close the FileOutputStream
fOutStream.close();
} catch (Exception e) {
e.printStackTrace();
}
photoPath = tmpFile.getPath();
}
}
}while(dataCursor.moveToNext());
String details = "";
// Concatenating various information to single string
if(homePhone != null && !homePhone.equals("") )
details = "HomePhone : " + homePhone + "\n";
if(mobilePhone != null && !mobilePhone.equals("") )
details += "MobilePhone : " + mobilePhone + "\n";
if(workPhone != null && !workPhone.equals("") )
details += "WorkPhone : " + workPhone + "\n";
if(nickName != null && !nickName.equals("") )
details += "NickName : " + nickName + "\n";
if(title != null && !title.equals("") )
details += "Title : " + title + "\n";
// Adding id, display name, path to photo and other details to cursor
mMatrixCursor.addRow(new Object[]{ Long.toString(contactId),displayName,photoPath,details});
}
}while(contactsCursor.moveToNext());
}
return mMatrixCursor;
}
@Override
protected void onPostExecute(Cursor result) {
// Setting the cursor containing contacts to listview
mAdapter.swapCursor(result);
}
}
}
here is your listview layout 这是你的列表视图布局
listview.xml listview.xml
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent" >
<ListView
android:id="@+id/listView1"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignParentTop="true" >
</ListView>
</RelativeLayout>
here is your items layout,just change it with your name 这是你的项目布局，只需用你的名字改变它
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >
<TextView
android:id="@+id/textView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="TextView" />
<ImageView
android:id="@+id/imageView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="@drawable/ic_launcher" />
<TextView
android:id="@+id/textView2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="TextView" />
</LinearLayout>
and put this permission in your maniefest file. 并将此权限放在您的maniefest文件中。
<uses-sdk
android:minSdkVersion="8"
android:targetSdkVersion="18" />
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.READ_CONTACTS" />
here is second class 这是第二堂课
public class secondactivity extends Activity {
protected static final int CAPTURE_NEW_PICTURE = 1;
ImageView photo1;
Button camera, galary,save;
Uri selectedImageUri;
String selectedPath;
Bitmap photo;
private static final int CAMERA_REQUEST = 1888;
public static final String MIMETYPE_FORMALITY = "vnd.android.cursor.item/useformality";
public static final int MEDIA_TYPE_IMAGE = 1;
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
photo1=(ImageView)findViewById(R.id.imageView1);
camera=(Button)findViewById(R.id.button1);
galary=(Button)findViewById(R.id.button2);
save=(Button)findViewById(R.id.button3);
//camera picture
camera.setOnClickListener(new View.OnClickListener()
{
@Override
public void onClick(View v) {
Intent cameraIntent = new Intent(android.provider.MediaStore.ACTION_IMAGE_CAPTURE);
startActivityForResult(cameraIntent, CAMERA_REQUEST);
}
});
//gallery picture
galary.setOnClickListener(new View.OnClickListener()
{
@Override
public void onClick(View v) {
Intent photoPickerIntent = new Intent(Intent.ACTION_GET_CONTENT);
photoPickerIntent.setType("image/*");
startActivityForResult(photoPickerIntent, 1);
}
});
save.setOnClickListener(new View.OnClickListener()
{
@Override
public void onClick(View arg0)
{
// TODO Auto-generated method stub
Context context= getApplicationContext();
Bitmap icon= BitmapFactory.decodeResource(context.getResources(), R.id.imageView1);
try
{
Intent myIntent = new Intent();
myIntent.setAction(Intent.ACTION_ATTACH_DATA);
myIntent.setType("image/jpeg");
myIntent.putExtra(Intent.EXTRA_STREAM, icon);
startActivity(myIntent);
}
catch (ActivityNotFoundException e)
{
e.printStackTrace();
}
}
});
}
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
if (requestCode == CAMERA_REQUEST && resultCode == RESULT_OK) {
Bitmap photo = (Bitmap) data.getExtras().get("data");
photo1.setImageBitmap(photo);
}
else
{
if (data != null && resultCode == RESULT_OK)
{
Uri selectedImage = data.getData();
String[] filePathColumn = {MediaStore.Images.Media.DATA};
Cursor cursor = getContentResolver().query(selectedImage, filePathColumn, null, null, null);
cursor.moveToFirst();
int columnIndex = cursor.getColumnIndex(filePathColumn[0]);
String filePath = cursor.getString(columnIndex);
cursor.close();
if(photo != null && !photo.isRecycled())
{
photo = null;
}
photo = BitmapFactory.decodeFile(filePath);
photo1.setBackgroundResource(0);
photo1.setImageBitmap(photo);
}
else
{
Log.d("Status:", "Photopicker canceled");
}
}
}
}
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