我收到错误声明“mImages＆amp; stringArray无法解析为变量”但是我不确定为什么。我使用了以下示例，我非常确定我已经非常密切地关注它了。
Different text for each image in image viewpager
mImages cannot be resolved to a variable:
ImagePagerAdapter adapter = new ImagePagerAdapter(this, mImages, stringArray);
stringArray cannot be resolved to a variable:
uploader.setText(stringArray[position]);
public class Home extends YouTubeBaseActivity implements
VideoClickListener {
// A reference to our list that will hold the video details
private VideosListView listView;
private ActionBarDrawerToggle actionBarDrawerToggle;
public static final String API_KEY = "XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX";
public static final String VIDEO_ID = "o7VVHhK9zf0";
private int mCurrentTabPosition = NO_CURRENT_POSITION;
private static final int NO_CURRENT_POSITION = -1;
private DrawerLayout drawerLayout;
private ListView drawerListView;
private String[] drawerListViewItems;
private ViewPager mPager;
ScrollView mainScrollView;
Button fav_up_btn1;
Button fav_dwn_btn1;
String TAG = "DEBUG THIS";
String PLAYLIST = "idconex";
Activity activity;
int imageArray[];
String[] stringArray;
private OnPageChangeListener mPageChangeListener;
ImagePagerAdapter adapter = new ImagePagerAdapter(this, mImages, stringArray);
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.home);
final ActionBar actionBar = getActionBar();
ViewPager viewPager = (ViewPager) findViewById(R.id.view_pager);
viewPager.setAdapter(adapter);
actionBar.setCustomView(R.layout.actionbar_custom_view_home);
actionBar.setDisplayShowTitleEnabled(false);
actionBar.setDisplayShowCustomEnabled(true);
// get list items from strings.xml
drawerListViewItems = getResources().getStringArray(R.array.items);
// get ListView defined in activity_main.xml
drawerListView = (ListView) findViewById(R.id.left_drawer);
// Set the adapter for the list view
drawerListView.setAdapter(new ArrayAdapter<String>(this,
R.layout.drawer_listview_item, drawerListViewItems));
drawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout);
actionBarDrawerToggle = new ActionBarDrawerToggle(this, /* host Activity */
drawerLayout, /* DrawerLayout object */
R.drawable.ic_drawer, /* nav drawer icon to replace 'Up' caret */
R.string.drawer_open, /* "open drawer" description */
R.string.drawer_close /* "close drawer" description */
);
drawerLayout.setDrawerListener(actionBarDrawerToggle);
getActionBar().setDisplayHomeAsUpEnabled(true);
drawerLayout.setDrawerShadow(R.drawable.drawer_shadow,
GravityCompat.START);
mainScrollView = (ScrollView) findViewById(R.id.groupScrollView);
listView = (VideosListView) findViewById(R.id.videosListView);
// Here we are adding this activity as a listener for when any row in
// the List is 'clicked'
// The activity will be sent back the video that has been pressed to do
// whatever it wants with
// in this case we will retrieve the URL of the video and fire off an
// intent to view it
listView.setOnVideoClickListener(this);
new GetYouTubeUserVideosTask(responseHandler, PLAYLIST).execute();
}
Handler responseHandler = new Handler() {
@Override
public void handleMessage(Message msg) {
populateListWithVideos(msg);
};
};
private void populateListWithVideos(Message msg) {
Library lib = (Library) msg.getData().get(
GetYouTubeUserVideosTask.LIBRARY);
listView.setVideos(lib.getVideos());
}
@Override
protected void onStop() {
responseHandler = null;
super.onStop();
}
// This is the interface method that is called when a video in the listview
// is clicked!
// The interface is a contract between this activity and the listview
@Override
public void onVideoClicked(Video video) {
Intent intent = new Intent(Intent.ACTION_VIEW);
intent.setData(Uri.parse(video.getUrl()));
startActivity(intent);
}
@Override
public void onConfigurationChanged(Configuration newConfig) {
super.onConfigurationChanged(newConfig);
actionBarDrawerToggle.onConfigurationChanged(newConfig);
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu items for use in the action bar
MenuInflater inflater = getMenuInflater();
inflater.inflate(R.menu.main, menu);
return super.onCreateOptionsMenu(menu);
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
// call ActionBarDrawerToggle.onOptionsItemSelected(), if it returns
// true
// then it has handled the app icon touch event
if (actionBarDrawerToggle.onOptionsItemSelected(item)) {
return true;
}
return super.onOptionsItemSelected(item);
}
private class ImagePagerAdapter extends PagerAdapter {
public ImagePagerAdapter(Activity act, int[] mImages, String[] stringArra) {
imageArray = mImages;
activity = act;
stringArray = stringArra;
}
// this is your constructor
public ImagePagerAdapter() {
super();
// setOnPageChangeListener(mPageChangeListener);
}
private int[] mImages = new int[] { R.drawable.selstation_up_btn,
R.drawable.classical_up_btn, R.drawable.country_up_btn,
R.drawable.dance_up_btn, R.drawable.hiphop_up_btn };
private String[] stringArray = new String[] {"vevo", "TheMozARTGROUP", "TimMcGrawVEVO", "TiestoVEVO", "EminemVEVO"};
@Override
public int getCount() {
return mImages.length;
}
@Override
public boolean isViewFromObject(View view, Object object) {
return view == ((ImageView) object);
}
@Override
public Object instantiateItem(ViewGroup container, int position) {
Context context = Home.this;
ImageView imageView = new ImageView(context);
imageView.setImageResource(mImages[position]);
((ViewPager) container).addView(imageView, 0);
return imageView;
}
@Override
public void destroyItem(ViewGroup container, int position, Object object) {
((ViewPager) container).removeView((ImageView) object);
}
private final ViewPager.SimpleOnPageChangeListener mPageChangeListener = new ViewPager.SimpleOnPageChangeListener() {
@Override
public void onPageSelected(final int position) {
onTabChanged(mPager.getAdapter(), mCurrentTabPosition, position);
mCurrentTabPosition = position;
}
};
protected void onTabChanged(final PagerAdapter adapter,
final int oldPosition, final int newPosition) {
// Calc if swipe was left to right, or right to left
if (oldPosition > newPosition) {
// left to right
} else {
// right to left
PLAYLIST.replace("TimMcGrawVEVO", PLAYLIST);
View vg = findViewById(R.layout.home);
vg.invalidate();
}
final ViewPager viewPager = (ViewPager) findViewById(R.id.view_pager);
viewPager.setOnPageChangeListener(new OnPageChangeListener() {
int oldPos = viewPager.getCurrentItem();
@Override
public void onPageScrolled(int position, float arg1, int arg2) {
if (position > oldPos) {
// Moving to the right
} else if (position < oldPos) {
// Moving to the Left
PLAYLIST.replace("TimMcGrawVEVO", PLAYLIST);
View vg = findViewById(R.layout.home);
vg.invalidate();
}
}
@Override
public void onPageScrollStateChanged(int arg0) {
// TODO Auto-generated method stub
}
@Override
public void onPageSelected(int arg0) {
// TODO Auto-generated method stub
}
});
}
}
}
public class VideosAdapter extends BaseAdapter {
// The list of videos to display
List<Video> videos;
// An inflator to use when creating rows
private LayoutInflater mInflater;
Button fav_up_btn1;
Button fav_dwn_btn1;
Context my_context;
/**
* @param context this is the context that the list will be shown in - used to create new list rows
* @param videos this is a list of videos to display
*/
public VideosAdapter(Context context, List<Video> videos) {
this.videos = videos;
this.mInflater = LayoutInflater.from(context);
my_context = context;
}
@Override
public int getCount() {
return videos.size();
}
@Override
public Object getItem(int position) {
return videos.get(position);
}
@Override
public long getItemId(int position) {
return position;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
// If convertView wasn't null it means we have already set it to our list_item_user_video so no need to do it again
if(convertView == null){
// This is the layout we are using for each row in our list
// anything you declare in this layout can then be referenced below
convertView = mInflater.inflate(R.layout.list_item_user_video, parent, false);
}
// We are using a custom imageview so that we can load images using urls
// For further explanation see: http://blog.blundell-apps.com/imageview-with-loading-spinner/
UrlImageView thumb = (UrlImageView) convertView.findViewById(R.id.userVideoThumbImageView);
TextView title = (TextView) convertView.findViewById(R.id.userVideoTitleTextView);
TextView uploader = (TextView) convertView.findViewById(R.id.userVideouploaderTextView);
// TextView uploader = (TextView) layout.findViewById(R.id.userVideouploaderTextView);
uploader.setText(stringArray[position]);
fav_up_btn1 = (Button) convertView.findViewById(R.id.fav_up_btn1);
fav_up_btn1.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
boolean favIsUp = fav_up_btn1
.getBackground()
.getConstantState()
.equals(my_context.getResources().getDrawable(
R.drawable.fav_up_btn1).getConstantState());
// set the background
fav_up_btn1
.setBackgroundResource(favIsUp ? R.drawable.fav_dwn_btn1
: R.drawable.fav_up_btn1);
}
});
// Get a single video from our list
final Video video = videos.get(position);
// Set the image for the list item
thumb.setImageDrawable(video.getThumbUrl());
// Set the title for the list item
title.setText(video.getTitle());
uploader.setText("by " + video.getUploader() + " | ");
return convertView;
}
}
答案 0 :(得分：0)
您没有stringarray，VideoAdapter.java中有videos。所以你应该做一些像uploader.setText(videos.get(position).getTitle())