I am new in android..
Can someone tell me what is wrong with my code? I am trying to make gallery in Fragment. When I install the apk file on the device, the program works but in that Fragment I see white screen instead of Gallery.Please help me :)
That is my Fragment class
package info.androidhive.fitnesslascalla;
import android.app.Activity;
import android.content.Context;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.BaseAdapter;
import android.widget.Gallery;
import android.widget.ImageView;
import android.widget.Toast;
public class ForUsFragment extends Fragment{
public class MainActivity extends Activity
{
ImageView selectedImage;
private Integer[] mImageIds = {
R.drawable.car1,
R.drawable.car2,
R.drawable.car3,
R.drawable.car4,
R.drawable.car5,
R.drawable.car6,
R.drawable.car7,
R.drawable.car8
};
public View onCreateView(LayoutInflater inflater, ViewGroup parent,
Bundle saedInstanceState) {
View rootView = inflater.inflate(R.layout.fragment_for_us, parent, false);
//setContentView(R.layout.fragment_for_us);
Gallery gallery = (Gallery) findViewById(R.id.gallery1);
selectedImage=(ImageView)findViewById(R.id.image1);
gallery.setSpacing(1);
gallery.setAdapter(new GalleryImageAdapter(this));
// clicklistener for Gallery
gallery.setOnItemClickListener(new OnItemClickListener() {
public void onItemClick(AdapterView<?> parent, View v, int position, long id) {
Toast.makeText(MainActivity.this, "Your selected position = " + position, Toast.LENGTH_SHORT).show();
// show the selected Image
selectedImage.setImageResource(mImageIds[position]);
}
});
return rootView;
}
}
public class GalleryImageAdapter extends BaseAdapter
{
private Context mContext;
private Integer[] mImageIds = {
R.drawable.car1,
R.drawable.car2,
R.drawable.car3,
R.drawable.car4,
R.drawable.car5,
R.drawable.car6,
R.drawable.car7,
R.drawable.car8
};
public GalleryImageAdapter(Context context)
{
mContext = context;
}
public int getCount() {
return mImageIds.length;
}
public Object getItem(int position) {
return position;
}
public long getItemId(int position) {
return position;
}
// Override this method according to your need
public View getView(int index, View view, ViewGroup viewGroup)
{
// TODO Auto-generated method stub
ImageView i = new ImageView(mContext);
i.setImageResource(mImageIds[index]);
i.setLayoutParams(new Gallery.LayoutParams(200, 200));
i.setScaleType(ImageView.ScaleType.FIT_XY);
return i;
}
}
}
and that is my Layout for that fragment
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context="{relativePackage}.${activityClass}"
android:orientation="vertical" >
<Gallery
android:id="#+id/gallery1"
android:layout_width="fill_parent"
android:layout_height="wrap_content" />
<ImageView
android:id="#+id/image1"
android:layout_width="215dp"
android:layout_height="315dp"
android:layout_gravity="center_horizontal"
android:background="#cfcfcf"
android:paddingTop="5dp"
android:paddingBottom="5dp"
android:paddingLeft="10dp"
android:paddingRight="10dp"
android:src="#drawable/car1"
android:contentDescription="#null" />
</LinearLayout>
Problem with your Getview mathod
#Override
public View getView(int position, View convertView, ViewGroup parent) {
if (convertView == null) {
holder = new ViewHolder();
imageView = new ImageView(this.context);
imageView.setPadding(3, 3, 3, 3);
convertView = imageView;
holder.imageView = imageView;
convertView.setTag(holder);
} else {
holder = (ViewHolder) convertView.getTag();
}
holder.imageView.setImageDrawable(plotsImages.get(position));
holder.imageView.setScaleType(ImageView.ScaleType.FIT_XY);
holder.imageView.setLayoutParams(new Gallery.LayoutParams(150, 90));
return imageView;
}
private static class ViewHolder {
ImageView imageView;
}
Related
I am new to android and facing one very comman problem of listview i googled alot but did'nt found anything usefull for my case.Hope you people show me the right direction.Whenever I am changing my image from "plus" to "tick" on click my last item image also got automatically changed on scroll.
My list_comapare_product XMl :-
<?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:background="#color/white_color"
android:orientation="vertical" >
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="100dp"
android:layout_marginLeft="20dp"
android:layout_marginRight="20dp"
android:background="#color/white_color"
android:gravity="center_vertical" >
<ImageView
android:id="#+id/img_product"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_centerHorizontal="true"
android:layout_centerVertical="true"
android:src="#drawable/crane" />
<com.mss.skyjack.custom.views.SkyjackCustomTextview
android:id="#+id/tv_product_name"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:layout_centerVertical="true"
android:gravity="center"
android:text="test"
android:textAppearance="?android:attr/textAppearanceMedium" />
<ImageView
android:id="#+id/img_plus"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:layout_centerHorizontal="true"
android:layout_centerVertical="true"
android:src="#drawable/plus" />
</RelativeLayout>
<View
android:layout_width="match_parent"
android:layout_height="1dp"
android:layout_marginLeft="20dp"
android:layout_marginRight="20dp"
android:background="#color/black_color" />
</LinearLayout>
Here is my Adapter :-
import java.util.List;
import android.app.Activity;
import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.ImageView;
import android.widget.TextView;
import android.widget.Toast;
public class ComapreProductSelectionAdapter extends BaseAdapter {
Activity activity;
List<SelectorTest> listSelector;
private LayoutInflater mLayoutInflater;
public ComapreProductSelectionAdapter(Activity activity,
List<SelectorTest> listSelector) {
this.activity = activity;
this.listSelector = listSelector;
mLayoutInflater = (LayoutInflater) activity
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
}
#Override
public int getCount() {
return listSelector.size();
}
#Override
public SelectorTest getItem(int position) {
return listSelector.get(position);
}
#Override
public long getItemId(int position) {
return position;
}
#Override
public View getView(int position, View convertView, ViewGroup parent) {
final ViewHolder viewHolder;
final int i = position;
final SelectorTest listItem = listSelector.get(position);
if (convertView == null) {
convertView = mLayoutInflater.inflate(
R.layout.list_comapare_product, parent, false);
viewHolder = new ViewHolder();
viewHolder.tvProductName = (TextView) convertView
.findViewById(R.id.tv_product_name);
viewHolder.imgProduct = (ImageView) convertView
.findViewById(R.id.img_product);
viewHolder.imgadd = (ImageView) convertView
.findViewById(R.id.img_plus);
convertView.setTag(viewHolder);
} else {
viewHolder = (ViewHolder) convertView.getTag();
}
viewHolder.imgadd.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
if (viewHolder.imgadd.getDrawable().getConstantState() == activity
.getResources().getDrawable(R.drawable.plus)
.getConstantState()) {
viewHolder.imgadd.setImageResource(R.drawable.tick);
} else {
viewHolder.imgadd.setImageResource(R.drawable.plus);
}
}
});
return convertView;
}
static class ViewHolder {
TextView tvProductName;
ImageView imgProduct, imgadd;
View viewRightLine;
}
}
Thanks.
You need to keep track of which items have been "ticked". I copied your adapter and made necessary changes. You can just copy-paste the code and it should work.
import java.util.List;
import android.app.Activity;
import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.ImageView;
import android.widget.TextView;
import android.widget.Toast;
public class ComapreProductSelectionAdapter extends BaseAdapter {
Activity activity;
List<SelectorTest> listSelector;
private LayoutInflater mLayoutInflater;
private ArrayList<Integer> tickedItems = new ArrayList<Integer>();
public ComapreProductSelectionAdapter(Activity activity,
List<SelectorTest> listSelector) {
this.activity = activity;
this.listSelector = listSelector;
mLayoutInflater = (LayoutInflater) activity
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
}
#Override
public int getCount() {
return listSelector.size();
}
#Override
public SelectorTest getItem(int position) {
return listSelector.get(position);
}
#Override
public long getItemId(int position) {
return position;
}
#Override
public View getView(int position, View convertView, ViewGroup parent) {
final ViewHolder viewHolder;
final int i = position;
final SelectorTest listItem = listSelector.get(position);
if (convertView == null) {
convertView = mLayoutInflater.inflate(
R.layout.list_comapare_product, parent, false);
viewHolder = new ViewHolder();
viewHolder.tvProductName = (TextView) convertView
.findViewById(R.id.tv_product_name);
viewHolder.imgProduct = (ImageView) convertView
.findViewById(R.id.img_product);
viewHolder.imgadd = (ImageView) convertView
.findViewById(R.id.img_plus);
convertView.setTag(viewHolder);
} else {
viewHolder = (ViewHolder) convertView.getTag();
}
viewHolder.imgadd.setTag(position);
viewHolder.imgadd.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
if(tickedItems.contains((Integer)v.getTag()) {
//Already ticked, set to plus
viewHolder.imgadd.setImageDrawable(activity.getResources().getDrawable(R.drawable.plus));
tickedItems.remove((Integer)v.getTag());
} else {
tickedItems.add((Integer)v.getTag());
viewHolder.imgadd.setImageDrawable(activity.getResources().getDrawable(R.drawable.tick));
}
}
});
if(tickedItems.contains(position))
viewHolder.imgadd.setImageDrawable(activity.getResources().getDrawable(R.drawable.tick));
else
viewHolder.imgadd.setImageDrawable(activity.getResources().getDrawable(R.drawable.plus));
return convertView;
}
static class ViewHolder {
TextView tvProductName;
ImageView imgProduct, imgadd;
View viewRightLine;
}
}
As an extra, don't use ImageView.setImageResource() as it is inefficient.
Quote from Android docs about ImageView.setImageReource()
This does Bitmap reading and decoding on the UI thread, which can cause a latency hiccup. If that's a concern, consider using setImageDrawable(android.graphics.drawable.Drawable) or setImageBitmap(android.graphics.Bitmap) and BitmapFactory instead.
I am making a memory game using the gallery view. I want all the cards to be shown at the bottom and when the user picks one card from the gallery the particular card is displayed above it(in the image view). When the user touches this card, the card should turn (using flip animation) and the front of the card should be displayed (which should be a new activity). During this flip and all the time I want to display the gallery at the bottom. How can i do this? I have the following code which has no errors but the app crashes before starting. On viewing the log cat it suggests an error while starting the new acidity.
import android.app.Activity;
import android.content.Context;
import android.content.Intent;
import android.content.res.TypedArray;
import android.os.Bundle;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.BaseAdapter;
import android.widget.Gallery;
import android.widget.ImageView;
import android.widget.Toast;
public class GalleryActivity extends Activity {
//---the images to display---
Integer[] imageIDs = {
R.drawable.you,
R.drawable.date,
R.drawable.competition,
R.drawable.contacts,
R.drawable.memory,
R.drawable.mission,
R.drawable.recognition,
R.drawable.report,
R.drawable.stallion,
R.drawable.strategy,
R.drawable.team
};
ImageView youview;
/** Called when the activity is first created. */
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
Gallery gallery = (Gallery) findViewById(R.id.gallery1);
gallery.setAdapter(new ImageAdapter(this));
gallery.setOnItemClickListener(new OnItemClickListener()
{
public void onItemClick(AdapterView<?> parent, View v,
int position, long id)
{
Toast.makeText(getBaseContext(),
"card" + (position + 1) + " selected",
Toast.LENGTH_SHORT).show();
//---display the images selected---
ImageView imageView = (ImageView) findViewById(R.id.image1);
imageView.setImageResource(imageIDs[position]);
}
});
youview=(ImageView)findViewById(R.drawable.you);
youview.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
// TODO Auto-generated method stub
Intent intent = new Intent(GalleryActivity.this, You.class);
startActivity(intent);
}
});
}
public class ImageAdapter extends BaseAdapter
{
Context context;
int itemBackground;
public ImageAdapter(Context c)
{
context = c;
//---setting the style---
TypedArray a = obtainStyledAttributes(R.styleable.Gallery1);
itemBackground = a.getResourceId(
R.styleable.Gallery1_android_galleryItemBackground, 0);
a.recycle();
}
//---returns the number of images---
public int getCount() {
return imageIDs.length;
}
//---returns the item---
public Object getItem(int position) {
return position;
}
//---returns the ID of an item---
public long getItemId(int position) {
return position;
}
//---returns an ImageView view---
public View getView(int position, View convertView, ViewGroup parent) {
ImageView imageView;
if (convertView == null) {
imageView = new ImageView(context);
imageView.setImageResource(imageIDs[position]);
imageView.setScaleType(ImageView.ScaleType.FIT_XY);
imageView.setLayoutParams(new Gallery.LayoutParams(150, 120));
} else {
imageView = (ImageView) convertView;
}
imageView.setBackgroundResource(itemBackground);
return imageView;
}
}
}
Here is the layout that I am using:-
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical"
android:background="#006600">
<TextView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="Choose the card"
android:textSize="20dp"
android:textStyle="bold"/>
<Gallery
android:id="#+id/gallery1"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
/>
<ImageView
android:id="#+id/image1"
android:layout_width="320dp"
android:layout_height="400dp"
android:layout_above="#+id/gallery1"
android:scaleType="fitXY" />
</RelativeLayout>
You should use a fragment for this as so:
private void addCardFragment() {
String fragmentTag = getFragmentTag();
FragmentTransaction fragmentTransaction = getFragmentManager().beginTransaction();
fragmentTransaction.setCustomAnimations(R.animator.card_flip_in, R.animator.card_flip_out);
CardFragment fragment = new CardFragment();
//set bundle with argument for image id to show if fragment
fragmentTransaction.replace(R.id.your_relative_or_frame_layout, CardFragment, fragmentTag);
fragmentTransaction.commit();
fragmentTransaction = null;
}
Any ideas of how to make tis galley view look nicer? as its not the best looking at the moment. Any help would be much appreciated and it can be anything from sizing to borders and even layout :)
The .xml:
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical" android:layout_width="fill_parent"
android:layout_height="fill_parent">
<Gallery android:id="#+id/gallery1" android:layout_width="fill_parent"
android:layout_height="wrap_content"></Gallery>
<ImageView android:id="#+id/ImageView01"
android:layout_gravity="center_vertical|center_horizontal"
android:layout_width="wrap_content" android:layout_height="wrap_content"></ImageView>
</LinearLayout>
My Activity:
package kevin.erica.box;
import android.app.Activity;
import android.content.Context;
import android.content.res.TypedArray;
import android.os.Bundle;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.BaseAdapter;
import android.widget.Gallery;
import android.widget.ImageView;
public class App2Activity extends Activity {
/** Called when the activity is first created. */
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.gallery);
Gallery g = (Gallery) findViewById(R.id.gallery1);
g.setAdapter(new ImageAdapter(this));
g.setOnItemClickListener(new OnItemClickListener() {
public void onItemClick(#SuppressWarnings("rawtypes") AdapterView parent, View v, int position, long id) {
ImageView imageview = (ImageView) findViewById(R.id.ImageView01);
imageview.setImageResource(mImageIds[position]);
}
});
}
public Integer[] mImageIds = {
R.drawable.lemon,
R.drawable.kevin,
R.drawable.mirror
};
public class ImageAdapter extends BaseAdapter {
int mGalleryItemBackground;
private Context mContext;
public ImageAdapter(Context c) {
mContext = c;
TypedArray a = obtainStyledAttributes(R.styleable.HelloGallery);
mGalleryItemBackground = a.getResourceId(
R.styleable.HelloGallery_android_galleryItemBackground, 0);
a.recycle();
}
public int getCount() {
return mImageIds.length;
}
public Object getItem(int position) {
return position;
}
public long getItemId(int position) {
return position;
}
public View getView(int position, View convertView, ViewGroup parent) {
ImageView i = new ImageView(mContext);
i.setImageResource(mImageIds[position]);
i.setLayoutParams(new Gallery.LayoutParams(150, 100));
i.setScaleType(ImageView.ScaleType.FIT_XY);
i.setBackgroundResource(mGalleryItemBackground);
return i;
}
}
}
you can change the whole shape of Gallery by using coverflow one ,if you want or stack with yours and adjaust it .
check this link :
http://www.inter-fuser.com/2010/02/android-coverflow-widget-v2.html
hope this help
I have a layout with an ImageSwitcher, a thumnail gallery, and a TextSwitcher. I would like the TextSwitcher to update text based on which thumbnail is selected. I have tried using a baseadapter to update the TextSwitcher in a similar manner to how the ImageSwitcher updates the images in the ImageView, but I am running into a wall here. Any help would be much appreciated! Thank you!
JAVA:
import android.app.Activity;
import android.content.Context;
import android.os.Bundle;
import android.view.Gravity;
import android.view.View;
import android.view.ViewGroup;
import android.view.Window;
import android.view.animation.AnimationUtils;
import android.widget.AdapterView;
import android.widget.BaseAdapter;
import android.widget.Gallery;
import android.widget.ImageSwitcher;
import android.widget.ImageView;
import android.widget.TextSwitcher;
import android.widget.TextView;
import android.widget.ViewSwitcher;
import android.widget.Gallery.LayoutParams;
public class ImageSwitch1 extends Activity implements
AdapterView.OnItemSelectedListener, ViewSwitcher.ViewFactory {
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE);
setContentView(R.layout.imageswitcher);
TextSwitcher mTextSwitcher = (TextSwitcher) findViewById(R.id.textSwitcher1);
mSwitcher = (ImageSwitcher) findViewById(R.id.switcher);
mSwitcher.setFactory(this);
mSwitcher.setInAnimation(AnimationUtils.loadAnimation(this,
android.R.anim.fade_in));
mSwitcher.setOutAnimation(AnimationUtils.loadAnimation(this,
android.R.anim.fade_out));
mTextSwitcher.setFactory(this);
mTextSwitcher.setInAnimation(AnimationUtils.loadAnimation(this,
android.R.anim.fade_in));
mTextSwitcher.setOutAnimation(AnimationUtils.loadAnimation(this,
android.R.anim.fade_out));
Gallery g = (Gallery) findViewById(R.id.gallery);
g.setAdapter(new ImageAdapter(this));
g.setOnItemSelectedListener(this);
}
public void onNothingSelected(AdapterView parent) {
}
public View makeView() {
ImageView i = new ImageView(this);
i.setBackgroundColor(0xFF000000);
i.setScaleType(ImageView.ScaleType.FIT_CENTER);
i.setLayoutParams(new ImageSwitcher.LayoutParams(LayoutParams.MATCH_PARENT,
LayoutParams.MATCH_PARENT));
return i;
}
private TextSwitcher mTextSwitcher;
public class TextAdapter extends BaseAdapter{
public TextAdapter(Context c){
mContext = c;
}
public int getCount(){
return mThumbIds.length;
}
public Object getItem(int position){
return position;
}
public long getItemId(int position){
return position;
}
public View getView(int position, View convertView, ViewGroup parent){
TextView t = new TextView(mContext);
t.setText(mText[position]);
t.setGravity(Gravity.TOP | Gravity.CENTER_HORIZONTAL);
t.setTextSize(36);
return t;
}
private Context mContext;
}
private ImageSwitcher mSwitcher;
public class ImageAdapter extends BaseAdapter {
public ImageAdapter(Context c) {
mContext = c;
}
public int getCount() {
return mThumbIds.length;
}
public Object getItem(int position) {
return position;
}
public long getItemId(int position) {
return position;
}
public View getView(int position, View convertView, ViewGroup parent) {
ImageView i = new ImageView(mContext);
i.setImageResource(mThumbIds[position]);
i.setAdjustViewBounds(true);
i.setLayoutParams(new Gallery.LayoutParams(
LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT));
i.setBackgroundResource(R.drawable.picture_frame);
return i;
}
private Context mContext;
}
public void onItemSelected(AdapterView parent, View v, int position, long id) {
mSwitcher.setImageResource(mImageIds[position]);
mTextSwitcher.setText(mThumbIds[position]);
}
private Integer[] mThumbIds = {
R.drawable.image1_thumb, R.drawable.image2_thumb, R.drawable.image3_thumb,
R.drawable.image4_thumb, R.drawable.image5_thumb};
private Integer[] mImageIds = {
R.drawable.image1, R.drawable.image2, R.drawable.image3,
R.drawable.image4, R.drawable.image5};
private Integer[] mText = {
R.string.item1, R.string.item2, R.string.item3, R.string.item4, R.string.item5
};
}
XML:
<?xml version="1.0" encoding="utf-8"?>
<FrameLayout android:id="#+id/FrameLayout1" android:layout_height="match_parent" xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent">
<ImageSwitcher android:id="#+id/switcher"
android:layout_width="match_parent"
android:layout_height="match_parent"
>
</ImageSwitcher>
<Gallery android:id="#+id/gallery"
android:background="#55000000"
android:layout_width="match_parent"
android:gravity="center_vertical"
android:spacing="16dp" android:unselectedAlpha="0.5" android:layout_height="80dp" />
<TextSwitcher android:layout_width="match_parent" android:id="#+id/textSwitcher1" android:layout_height="wrap_content"></TextSwitcher>
</FrameLayout>
You should be passing a string to mTextSwitcher.setText(mThumbIds[position]); instead change it to mTextSwitcher.setText(getText(mText[position]));
In the below code i have created a gallery object and also have included a image view,on click of image how to get the image name and load it in image view.I have also included main.xml
package HelloGallery.com;
import android.app.Activity;
import android.content.Context;
import android.content.res.TypedArray;
import android.os.Bundle;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.BaseAdapter;
import android.widget.Gallery;
import android.widget.ImageView;
import android.widget.Toast;
public class HelloGalleryActivity extends Activity {
/** Called when the activity is first created. */
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
final ImageView iv=(ImageView) findViewById(R.id.imageView1);
iv.setVisibility(View.INVISIBLE);
Gallery g = (Gallery) findViewById(R.id.gallery);
g.setAdapter(new ImageAdapter(this));
g.setOnItemClickListener(new OnItemClickListener() {
public void onItemClick(AdapterView parent, View v, int position, long id) {
Toast.makeText(HelloGalleryActivity.this, "" + position, Toast.LENGTH_SHORT).show();
iv.setVisibility(View.VISIBLE);
iv.setsource("android:src="#drawable/"+imagename); //how to do this
}
});
}
public class ImageAdapter extends BaseAdapter {
int mGalleryItemBackground;
private Context mContext;
private Integer[] mImageIds = {
R.drawable.sample_1,
R.drawable.sample_2,
R.drawable.sample_3
};
public ImageAdapter(Context c) {
mContext = c;
TypedArray a = obtainStyledAttributes(R.styleable.HelloGallery);
mGalleryItemBackground = a.getResourceId(
R.styleable.HelloGallery_android_galleryItemBackground, 0);
a.recycle();
}
public int getCount() {
return mImageIds.length;
}
public Object getItem(int position) {
return position;
}
public long getItemId(int position) {
return position;
}
public View getView(int position, View convertView, ViewGroup parent) {
ImageView i = new ImageView(mContext);
i.setImageResource(mImageIds[position]);
i.setLayoutParams(new Gallery.LayoutParams(150, 100));
i.setScaleType(ImageView.ScaleType.FIT_XY);
i.setBackgroundResource(mGalleryItemBackground);
return i;
}
/* public View getView(int arg0, View arg1, ViewGroup arg2) {
// TODO Auto-generated method stub
return null;
}*/
}
}
Main.mxml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
>
<TextView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="#string/hello"
/>
<Gallery xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/gallery"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
/>
<ImageView android:layout_width="wrap_content" android:id="#+id/imageView1" android:layout_height="wrap_content" ></ImageView>
</LinearLayout>
Try this,
Drawable d=getResources().getDrawable(R.drawable.icon);
iv.setImageDrawable(d);