在ImageView的为NavDrawer图像轮廓 [英] Image profile in imageview for NavDrawer
本文介绍了在ImageView的为NavDrawer图像轮廓的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我正在从解析，基本用户的配置文件图像的镜像文件。
但现在我无法在NavDrawer显示此，原因是它不是一个ImageView的和我得到是图像，
I am getting a imagefile from Parse, basically user's profile image. But now I am having trouble to display this in the NavDrawer, reason being that it is not a imageview and I am getting is a Image,
下面是我的Mainactivity.xml
Here is my Mainactivity.xml
public class MainActivity extends AppCompatActivity {
private Toolbar mToolbar;
private RecyclerView mRecyclerView;
private RecyclerView.LayoutManager mLayoutManager;
private DrawerLayout Drawer;
private RecyclerView.Adapter mAdapter;
private ActionBarDrawerToggle mDrawerToggle;
private List<DrawerItem> navigationItemsList;
public String HEADER_NAME;// = "bharath";
public String HEADER_EMAIL = "bharath@someemail.com";
public int HEADER_IMAGE ;//= R.drawable.bharath;
private final static int ATTENDANTS_LIST_FRAGMENT = 1;
private final static int EVENTS_LIST_FRAGMENT = 2;
private final static int ADD_ATTENDANT_FRAGMENT = 3;
private final static int ADD_EVENTS_FRAGMENT = 4;
private final static int MY_DONATIONS = 5;
private final static int SETTINGS_FRAGMENT = 6;
private int currentFragment = 1;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mToolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(mToolbar);
navigationItemsList = new ArrayList<DrawerItem>();
addItemsToNavigationList();
mRecyclerView = (RecyclerView) findViewById(R.id.RecyclerView);
mRecyclerView.setHasFixedSize(true);
ParseUser userName = ParseUser.getCurrentUser();
HEADER_NAME = userName.getUsername();
HEADER_EMAIL = userName.getEmail();
mAdapter = new com.charity.dogood.dogood.adapters.NavDrawerAdapter(navigationItemsList, this, HEADER_NAME, HEADER_EMAIL, HEADER_IMAGE);
mRecyclerView.setAdapter(mAdapter);
//Parse Image and details of the logged in user
// Locate the class table named "ImageUpload" in Parse.com
ParseQuery<ParseObject> query = new ParseQuery("User");
Log.d("Mainactivity", "After query 1");
ParseUser currentUser = ParseUser.getCurrentUser();
Log.d("Mainactivity", "After query 2");
query.whereEqualTo("username", "bro");
Log.d("Mainactivity", "After query 3");
Log.d("Mainactivity", currentUser.getUsername());
// String usernam = (String)currentUser;
if (currentUser != null) {
Log.d("Mainactivity", "came to current user check statement");
currentUser.fetchIfNeededInBackground(new GetCallback<ParseObject>() {
// query.getInBackground("bro", new GetCallback<ParseObject>() {
@Override
public void done(ParseObject object, ParseException e) {
if (e == null) {
ParseFile fileObject = (ParseFile) object.getParseFile("ImageProfile");
fileObject.getDataInBackground(new GetDataCallback() {
@Override
public void done(byte[] bytes, ParseException e) {
if (e == null) {
Toast.makeText(MainActivity.this, "we got data!", Toast.LENGTH_LONG).show();
Bitmap bmp = BitmapFactory.decodeByteArray(bytes, 0, bytes.length);
HEADER_IMAGE = (ImageView)findViewById(R.id.c)
// HEADER_IMAGE image = (ImageView) fin
} else {
AlertDialog.Builder builder = new AlertDialog.Builder(MainActivity.this);
builder.setMessage(e.getMessage());
builder.setTitle("Sorry");
builder.setPositiveButton("Ok", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialogInterface, int i) {
dialogInterface.dismiss();
}
});
AlertDialog dialog = builder.create();
dialog.show();
}
}
});
} else {
AlertDialog.Builder builder = new AlertDialog.Builder(MainActivity.this);
builder.setMessage(e.getMessage());
builder.setTitle("Sorry");
builder.setPositiveButton("Ok", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialogInterface, int i) {
dialogInterface.dismiss();
}
});
AlertDialog dialog = builder.create();
dialog.show();
}
}
});
Log.d("Mainactivity", "After query 4");
}
final GestureDetector mGestureDetector = new GestureDetector(MainActivity.this, new GestureDetector.SimpleOnGestureListener()
{
@Override
public boolean onSingleTapUp(MotionEvent e) {return true;}
});
mRecyclerView.addOnItemTouchListener(new RecyclerView.OnItemTouchListener() {
@Override
public boolean onInterceptTouchEvent(RecyclerView recyclerView, MotionEvent motionEvent) {
View child = recyclerView.findChildViewUnder(motionEvent.getX(),motionEvent.getY());
if (child != null && mGestureDetector.onTouchEvent(motionEvent)){
Drawer.closeDrawers();
onTouchDrawer(recyclerView.getChildLayoutPosition(child));
// onTouchDrawer(recyclerView.getChildLayoutPosition(child));
return true;
}
return false;
}
@Override
public void onTouchEvent(RecyclerView rv, MotionEvent e) {
}
@Override
public void onRequestDisallowInterceptTouchEvent(boolean disallowIntercept) {
}
});
mLayoutManager = new LinearLayoutManager(this);
mRecyclerView.setLayoutManager(mLayoutManager);
Drawer = (DrawerLayout) findViewById(R.id.DrawerLayout);
mDrawerToggle = new ActionBarDrawerToggle(this, Drawer, mToolbar, R.string.navigation_drawer_open, R.string.navigation_drawer_close) {
@Override
public void onDrawerOpened(View drawerView) {
super.onDrawerOpened(drawerView);
}
@Override
public void onDrawerClosed(View drawerView) {
super.onDrawerClosed(drawerView);
}
};
Drawer.setDrawerListener(mDrawerToggle);
mDrawerToggle.syncState();
onTouchDrawer(1); }
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
//noinspection SimplifiableIfStatement
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
private void openFragments(final Fragment fragment)
{
getSupportFragmentManager().beginTransaction().setCustomAnimations(R.anim.slide_in_left, R.anim.slide_out_left). replace(R.id.container, fragment).commit();
}
private void onTouchDrawer(final int position)
{
currentFragment = position;
switch (position)
{
case ATTENDANTS_LIST_FRAGMENT:
openFragments(new AttendanceListFragment());
setTitle(getString(R.string.all_charities));
break;
case ADD_ATTENDANT_FRAGMENT:
openFragments(new AddAttendantFragment());
setTitle(getString(R.string.view_causes));
break;
case EVENTS_LIST_FRAGMENT:
openFragments(new EventsListFragment());
setTitle(getString(R.string.add_charity));
break;
case ADD_EVENTS_FRAGMENT:
openFragments(new AddEventFragment());
setTitle(getString(R.string.make_donation));
break;
case MY_DONATIONS:
openFragments(new AddEventFragment());
setTitle(getString(R.string.my_dontations));
break;
case SETTINGS_FRAGMENT:
startActivity(new Intent(this, PreferenceActivity.class));
//ToDO
default:
return;
}
}
private void setTitle(String title)
{
getSupportActionBar().setTitle(title);
}
private void addItemsToNavigationList(){
navigationItemsList.add(new DrawerItem(getString(R.string.all_charities), R.drawable.ic_action_attendant_list));
navigationItemsList.add(new DrawerItem(getString(R.string.add_charity), R.drawable.ic_action_events_list));
navigationItemsList.add(new DrawerItem(getString(R.string.view_causes), R.drawable.ic_action_add_attendant));
navigationItemsList.add(new DrawerItem(getString(R.string.make_donation), R.drawable.ic_action_add_event));
navigationItemsList.add(new DrawerItem(getString(R.string.my_dontations), R.drawable.ic_action_add_attendant));
navigationItemsList.add(new DrawerItem(getString(R.string.settings), R.drawable.ic_action_settings));
}
我NavDrawerAdapter
my NavDrawerAdapter
package com.charity.dogood.dogood.adapters;
import android.content.Context;
import android.support.v7.widget.RecyclerView;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ImageView;
import android.widget.TextView;
import com.charity.dogood.dogood.R;
import com.charity.dogood.dogood.models.DrawerItem;
import java.util.List;
/**
* Created by Valentine on 6/18/2015.
*/
public class NavDrawerAdapter extends RecyclerView.Adapter<NavDrawerAdapter.ViewHolder> {
//Declare variable to identify which view that is being inflated
//The options are either the Navigation Drawer HeaderView or the list items in the Navigation drawer
private static final int TYPE_HEADER = 0;
private static final int TYPE_ITEM = 1;
// String Array to store the passed titles Value from MainActivity.java
private String mNavTitles[];
// Int Array to store the passed icons resource value from MainActivity.java
private int mIcons[];
//String Resource for header View Name
private String name;
//int Resource for header view profile picture
private int profile;
//String for the email displayed in the Navigation header
private String email;
private Context mContext;
@Override
public ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
if (viewType == TYPE_ITEM) {
View v = LayoutInflater.from(parent.getContext()).inflate(R.layout.nav_drawer_row,parent,false); //Inflating the layout
ViewHolder vhItem = new ViewHolder(v,viewType); //Creating ViewHolder and passing the object of type view
return vhItem; // Returning the created object
//inflate your layout and pass it to view holder
} else if (viewType == TYPE_HEADER) {
View v = LayoutInflater.from(parent.getContext()).inflate(R.layout.header,parent,false); //Inflating the layout
ViewHolder vhHeader = new ViewHolder(v,viewType); //Creating ViewHolder and passing the object of type view
return vhHeader; //returning the object created
}
return null;
}
//Next we override a method which is called when the item in a row is needed to be displayed, here the int position
// Tells us item at which position is being constructed to be displayed and the holder id of the holder object tell us
// which view type is being created 1 for item row
@Override
public void onBindViewHolder(NavDrawerAdapter.ViewHolder holder, int position) {
if(holder.Holderid ==1) { // as the list view is going to be called after the header view so we decrement the
// position by 1 and pass it to the holder while setting the text and image
holder.textView.setText(mNavTitles[position - 1]); // Setting the Text with the array of our Titles
holder.imageView.setImageResource(mIcons[position -1]);// Settimg the image with array of our icons
}
else{
holder.profile.setImageResource(profile); // Similarly we set the resources for header view
holder.Name.setText(name);
holder.email.setText(email);
}
}
@Override
public int getItemCount() {
return mNavTitles.length + 1;
}
public static class ViewHolder extends RecyclerView.ViewHolder{
int Holderid;
TextView textView;
ImageView imageView;
ImageView profile;
TextView Name;
TextView email;
public ViewHolder(View itemView,int ViewType) { // Creating ViewHolder Constructor with View and viewType As a parameter
super(itemView);
// Here we set the appropriate view in accordance with the the view type as passed when the holder object is created
if(ViewType == TYPE_ITEM) {
textView = (TextView) itemView.findViewById(R.id.rowText); // Creating TextView object with the id of textView from nav_bar_rowrow.xml
imageView = (ImageView) itemView.findViewById(R.id.rowIcon);// Creating ImageView object with the id of ImageView from nav_bar_row.xmlxml
Holderid = 1; // setting holder id as 1 as the object being populated are of type item row
}
else{
Name = (TextView) itemView.findViewById(R.id.name); // Creating Text View object from header.xml for name
email = (TextView) itemView.findViewById(R.id.email); // Creating Text View object from header.xml for email
profile = (ImageView) itemView.findViewById(R.id.circleView);// Creating Image view object from header.xml for profile pic
Holderid = 0; // Setting holder id = 0 as the object being populated are of type header view
}
}
}
/**
* With this method we determine what type of view being passed.
* @param position
* @return
*/
@Override
public int getItemViewType(int position) {
if (isPositionHeader(position))
return TYPE_HEADER;
return TYPE_ITEM;
}
private boolean isPositionHeader(int position) {
return position == 0;
}
public NavDrawerAdapter(List<DrawerItem> dataList, Context context, String Name, String Email, int Profile){ // MyAdapter Constructor with titles and icons parameter
// titles, icons, name, email, profile pic are passed from the main activity as we
mNavTitles = new String[dataList.size()];
mIcons = new int[dataList.size()];
for (int i = 0; i < dataList.size(); i++){
mNavTitles[i] = dataList.get(i).getItemName();
mIcons[i] = dataList.get(i).getImgResId();
}
mContext = context;
name = Name;
email = Email;
profile = Profile; //here we assign those passed values to the values we declared here
//in adapter
}
}
我能够得到我的抽屉里的用户名和电子邮件，但我应该怎么办bmp的，我下载得到它显示在应用程序导航抽屉位图？这样的形象，
I am able to get the username and email in my drawer but what should I do with the bmp , the bitmap that I downloaded to get it displayed in the app Navigation Drawer? like this the image,
推荐答案
在NavDrawerAdapter.java
定义字段
In NavDrawerAdapter.java define field
Bitmap bitmapAvatar = null;
然后函数onBindViewHolder（NavDrawerAdapter.ViewHolder持有人，INT位置）
替换
then in function onBindViewHolder(NavDrawerAdapter.ViewHolder holder, int position) replace
holder.profile.setImageResource(profile);
与
if (bitmapAvatar != null) {
holder.profile.setImageBitmap(bitmapAvatar);
} else {
holder.profile.setImageResource(profile);
}
和创建一个功能（在外部类）
and create a function(in outer class)
public void setAvatar(Bitmap bmp) {
this.bitmapAvatar = bmp;
notifyDataSetChanged();
}
callig notifyDatasetChanged（）将更新当前数据视图与适配器实例。
callig notifyDatasetChanged() will update the Views with current data with adapter instance.
在MainActivity.java
用
In MainActivity.java use
private NavDrawerAdapter mAdapter;
而不是
private RecyclerView.Adapter mAdapter;
和在GetDataCallback，后位图愿与BMP变量来使用，删除行
and in GetDataCallback, after Bitmap is ready to use with bmp variable, remove the line
HEADER_IMAGE = (ImageView)findViewById(R.id.c)
不要求并初始化在MainActivity的ImageView和你没有分号也。
取出后，把下面的调用code。在同一个地方创建BMP后：
it isn't required to intialize ImageView in MainActivity and you don't have semicolon also. After removal, put the following calling code at the same place after bmp is created:
mAdapter.setAvatar(bmp);
它会调用我们的适配器类创建的功能和动态改变的形象。
it will call the function we created in adapter class and change the image dynamically.
这篇关于在ImageView的为NavDrawer图像轮廓的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
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