Open image from res/drawable-hdpi in gallery when clicking a button - android

i have been goin through various posts to find a way to open a image from my res folder,
i have a button named share,i used the following code to do the same
Intent intent = new Intent();
intent.setAction(Intent.ACTION_VIEW);
Uri uri=Uri.parse("file:///android_asset/a.jpg");
tried fetching from aseets but image not loaded.
Uri imgUri = Uri.parse("android.resource://"+getPackageName()+"/" +"drawable/a");
the app force closes when i use this uri.
intent.setDataAndType(Uri.parse("android.resource://com.example.hny_wallpaperset/" + R.drawable.a), "image/*");
app force closes
intent.setDataAndType(uri, "image/*");
startActivity(intent);
a is my image name,i also tried using my package name com.example.HNY_wallpaperset instead of getpackagename(),still same error.
any advice?
Found the answer here --
How to open an image in drawable folder using android imageview applications?

here is quick sample of one gallery activity if that is what you need anyway.
public class ImageGalleryExample extends Activity implements
AdapterView.OnItemSelectedListener, ViewSwitcher.ViewFactory {
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE);
setContentView(R.layout.main);
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));
Gallery g = (Gallery) findViewById(R.id.gallery);
g.setAdapter(new ImageAdapter(this));
g.setOnItemSelectedListener(this);
}
public void onItemSelected(AdapterView<?> parent, View v, int position, long id) {
mSwitcher.setImageResource(mImageIds[position]);
}
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 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;
}
private Integer[] mThumbIds = {
R.drawable.sample_thumb_0, R.drawable.sample_thumb_1,
R.drawable.sample_thumb_2, R.drawable.sample_thumb_3};
private Integer[] mImageIds = {
R.drawable.sample_0, R.drawable.sample_1, R.drawable.sample_2,
R.drawable.sample_3};
}
but if you just want to set src to image view then use simple:
myImgView.setImageResource(R.drawable.sample_1);
btw, android itslef is choosing betwen drawable-?dpi folders

Related

i want the image swither in my app

I want to insert the image swicther in my app so what should I do now?
this is aking for imageadapter so how can i implement it?
please help me..
thank u....
this is my code...
Integer pics[] = { R.drawable.amrapali1, R.drawable.defic1, R.drawable.hnsafal1, R.drawable.leela1, R.drawable.mitashi1, R.drawable.magnanimous1, R.drawable.moon1, R.drawable.netpeckers1, R.drawable.nggroup1, R.drawable.platinum1, R.drawable.shivalik1, R.drawable.trikon1 };
ImageSwitcher iSwitcher;
iSwitcher = (ImageSwitcher) findViewById(R.id.ImageSwitcher);
iSwitcher.setFactory(this);
iSwitcher.setInAnimation(AnimationUtils.loadAnimation(this,
android.R.anim.fade_in));
iSwitcher.setOutAnimation(AnimationUtils.loadAnimation(this,
android.R.anim.fade_out));
Gallery gallery = (Gallery) findViewById(R.id.Gallery);
gallery.setAdapter(new ImageAdapter(this));
gallery.setOnItemClickListener(new OnItemClickListener() {
});
Try out with the below ImageAdapter class
public class ImageAdapter extends BaseAdapter {
private Context ctx;
public ImageAdapter(Context c) {
ctx = c;
}
public int getCount() {
return pics.length;
}
public Object getItem(int arg0) {
return arg0;
}
public long getItemId(int arg0) {
return arg0;
}
public View getView(int arg0, View arg1, ViewGroup arg2) {
ImageView iView = new ImageView(ctx);
iView.setImageResource(pics[arg0]);
iView.setScaleType(ImageView.ScaleType.FIT_XY);
iView.setLayoutParams(new Gallery.LayoutParams(200, 150));
return iView;
}
}
For more detailed understanding Go HERE

Unable to display the image selected in gallery view

I have an issue with showing the preview of image selected in the gallery view. I have a gallery of images from sd card, on clicking an image its preview should be shown below the gallery view(Not in seperate activity via intent). I am able to show the gallery with images but nothing is happening on clicking image.
public class NewActivity extends Activity {
GalleryBaseAdapter myGalleryBaseAdapter;
Gallery myPhotoGallery;
int[] mFiles = null;
/** Called when the activity is first created. */
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
myPhotoGallery = (Gallery)findViewById(R.id.photogallery);
myGalleryBaseAdapter = new GalleryBaseAdapter(this);
String ExternalStorageDirectoryPath = Environment.getExternalStorageDirectory().getAbsolutePath();
String path = ExternalStorageDirectoryPath;
String files;
File folder = new File (path);
final File[] listOfFiles = folder.listFiles();
for (int i = 0; i < listOfFiles.length; i++)
{
if (listOfFiles[i].isFile())
{
files = listOfFiles[i].getName();
System .out.println(files);
}
}
for (File file : listOfFiles) {
myGalleryBaseAdapter.add(file.getPath());
}
myPhotoGallery.setAdapter(myGalleryBaseAdapter);
myPhotoGallery.setOnItemClickListener(new OnItemClickListener() {
#Override
public void onItemClick(AdapterView parent, View v, int position, long id) {
mFiles = new int[listOfFiles.length];
ImageView imageview = (ImageView)findViewById(R.id.imageView1);
Bitmap bitmapImage = BitmapFactory.decodeFile("/sdcard/" + mFiles[position]);
imageview.setScaleType(ImageView.ScaleType.CENTER_CROP);
imageview.setImageBitmap(bitmapImage);
}
});
}
public class GalleryBaseAdapter extends BaseAdapter {
ArrayList<String> GalleryFileList;
Context context;
GalleryBaseAdapter(Context cont){
context = cont;
GalleryFileList = new ArrayList<String>();
}
#Override
public int getCount() {
return GalleryFileList.size();
}
#Override
public Object getItem(int position) {
return GalleryFileList.get(position);
}
#Override
public long getItemId(int position) {
return position;
}
#Override
public View getView(int position, View convertView, ViewGroup parent) {
Bitmap bm = BitmapFactory.decodeFile(GalleryFileList.get(position));
LinearLayout layout = new LinearLayout(context);
layout.setLayoutParams(new Gallery.LayoutParams(150, 150));
layout.setGravity(Gravity.CENTER);
ImageView imageView = new ImageView(context);
imageView.setLayoutParams(new Gallery.LayoutParams(200, 200));
imageView.setScaleType(ImageView.ScaleType.CENTER_CROP);
imageView.setImageBitmap(bm);
layout.addView(imageView);
return layout;
}
public void add(String newitem){
GalleryFileList.add(newitem);
}
}
}
Can anybody please tell me what is the mistake in my code. Thanks in advance.
Wait but.... your mFiles variable in onItemClick is an array of int empty !?! You are trying to decode a path which is a concatenation between "/sdcard" and a mFiles'row, but... where are you populating that array ? I think you have to specify file path like "listOfFiles[position].getPath()"

Android viewflipper and gallery

I am trying to develop a application which contain a gallery with view flipper.
Gallery shows all the images.What I want to do is, the image which is shown in the view flipper should be highlighted in the gallery.
Currently I am able to highlight it on onClick.But not able to make communication between both.
I tried using following method
viewflipper.getDisplayedChild();
but it doesn't work.
following is my code
public class SliderActivity extends Activity
{
int mFlipping = 0 ;
public int currentimageindex=0;
Timer timer;
TimerTask task;
ImageView slidingimage;
android.widget.ViewFlipper flipper;
Gallery gallery;
private int[] IMAGE_IDS =
{
R.drawable.android0, R.drawable.android1, R.drawable.android2,R.drawable.android3,R.drawable.android4
};
#Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.mygame);
flipper = (android.widget.ViewFlipper) findViewById(R.id.flipper1);
for(int i=0;i<IMAGE_IDS.length;i++)
{
// This will create dynamic image view and add them to ViewFlipper
ImageView image = new ImageView(getApplicationContext());
image.setBackgroundResource(IMAGE_IDS[i]);
flipper.addView(image);
}
gallery=(Gallery)findViewById(R.id.gallery1);
gallery.setAdapter(new ImageAdapter(this));
if(mFlipping==0){
/** Start Flipping */
flipper.startFlipping();
mFlipping=1;
//mButton.setText(R.string.str_btn_stop);
}
else{
/** Stop Flipping */
flipper.stopFlipping();
mFlipping=0;
// mButton.setText(R.string.str_btn_start);
}
}
public class ImageAdapter extends BaseAdapter
{
int mGalleryItemBackground;
private Context mContext;
public ImageAdapter(Context c)
{
mContext = c;
TypedArray a = obtainStyledAttributes(R.styleable.Theme);
mGalleryItemBackground = a.getResourceId(
R.styleable.Theme_android_galleryItemBackground,0);
a.recycle();
}
public int getCount()
{
return IMAGE_IDS.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(IMAGE_IDS[position]);
i.setLayoutParams(new Gallery.LayoutParams(150, 100));
i.setScaleType(ImageView.ScaleType.FIT_XY);
i.setBackgroundResource(mGalleryItemBackground);
return i;
}
}
public void onClick(View v) {
finish();
android.os.Process.killProcess(android.os.Process.myPid());
}
}
If I understand your question... I think you need to use setOnItemSelectedListener...
gallery.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
#Override
public void onItemSelected(AdapterView<?> adapter, View gallery,
int position, long arg3) {
myPosition = position;
//tell your flipper something useful here using the current position of the gallery
}
#Override
public void onNothingSelected(AdapterView<?> arg0) {
// TODO Auto-generated method stub
}
});
And talk to your flipper from in the onItemSelected callback.

Loading images from web into image gallery

I am using the following to code make an image gallery, but I would like to use images from the web instead of from the SD card. Is there a way to do this? Currently the code requires and integer value for the image. Or do I have to download the images to the SD first?
public class viewimages extends Activity {
private Gallery gallery;
private ImageView imgView;
private Integer[] Imgid = {
R.drawable.a_1, R.drawable.a_2, R.drawable.a_3, R.drawable.a_4
};
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.viewimages);
imgView = (ImageView)findViewById(R.id.ImageView01);
imgView.setImageResource(Imgid[0]);
gallery = (Gallery) findViewById(R.id.examplegallery);
gallery.setAdapter(new AddImgAdp(this));
gallery.setOnItemClickListener(new OnItemClickListener() {
public void onItemClick(AdapterView parent, View v, int position, long id) {
imgView.setImageResource(Imgid[position]);
}
});
}
public class AddImgAdp extends BaseAdapter {
int GalItemBg;
private Context cont;
public AddImgAdp(Context c) {
cont = c;
TypedArray typArray = obtainStyledAttributes(R.styleable.GalleryTheme);
GalItemBg = typArray.getResourceId(R.styleable.GalleryTheme_android_galleryItemBackground, 0);
typArray.recycle();
}
public int getCount() {
return Imgid.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 imgView = new ImageView(cont);
imgView.setImageResource(Imgid[position]);
imgView.setLayoutParams(new Gallery.LayoutParams(80, 70));
imgView.setScaleType(ImageView.ScaleType.FIT_XY);
imgView.setBackgroundResource(GalItemBg);
return imgView;
}
}
}
You can do something like this:
URL url = new URL("http://www.website.com/image.jpg");
Bimtap bmp = BitmapFactory.decodeStream(url.openConnection()
.getInputStream());
Then you'll need to change where you're doing "setImageResource" to "setImageBitmap" and supply the 'bmp' object once it has been downloaded and loaded up.
[Edit]
It's also important to make sure your android manifest has internet permissions.
<uses-permission android:name="android.permission.INTERNET" />
[Edit for comment question]
If you want to do this for multiple images, and the images aren't based on an id_number (basically if the images aren't something like 0001.jpg, 0002.jpg, etc.) create a string ArrayList that will hold the names of all the items, and then iterate through it. E.g.,
List<String> imageNames = new ArrayList<String>();
imageNames.add("image.jpg");
imageNames.add("thisPhoto.jpg");
//etc. until you've added all images
for (int i = 0; i < imageNames.size(); i++){
URL url = new URL("http://www.website.com/" + imageNames.get(i));
Bimtap bmp = BitmapFactory.decodeStream(url.openConnection()
.getInputStream());
}
Hope that helps

Why can't i get the text written in EditText?

public class RenkKorluguTesti extends Activity {
/** Called when the activity is first created. */
ImageView imageView1;
EditText editText1=null;
Button button1;
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.galeri);
imageView1 = (ImageView) findViewById(R.id.imageView1);
editText1 = (EditText) findViewById(R.id.editText1);
button1 = (Button) findViewById(R.id.button1);
Gallery gallery = (Gallery) findViewById(R.id.gallery);
gallery.setAdapter(new ImageAdapter(this));
gallery.setOnItemClickListener(new OnItemClickListener() {
public void onItemClick(AdapterView parent, View v, int position, long id) {
switch(position) {
case 0:{
imageView1.setImageResource(R.drawable.plate01);
break;
}
case 1: imageView1.setImageResource(R.drawable.plate02); break;
case 2: imageView1.setImageResource(R.drawable.plate03); break;
}
//Toast.makeText(RenkKorluguTesti.this, "" + position, Toast.LENGTH_SHORT).show();
}
});
}
public void tikla(View v) {
if(editText1.getText().toString()=="12")
editText1.setText("yov");
//Toast.makeText(RenkKorluguTesti.this, "Birinci testi geƧtiniz.",Toast.LENGTH_SHORT).show();
}
public class ImageAdapter extends BaseAdapter {
int mGalleryItemBackground;
private Context mContext;
private Integer[] mImageIds = {
R.drawable.plate01,
R.drawable.plate02,
R.drawable.plate03,
};
public ImageAdapter(Context c) {
mContext = c;
TypedArray attr = mContext.obtainStyledAttributes(R.styleable.RenkKorluguTesti);
mGalleryItemBackground = attr.getResourceId(
R.styleable.RenkKorluguTesti_android_galleryItemBackground, 0);
attr.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 imageView = new ImageView(mContext);
imageView.setImageResource(mImageIds[position]);
imageView.setLayoutParams(new Gallery.LayoutParams(150, 100));
imageView.setScaleType(ImageView.ScaleType.FIT_XY);
imageView.setBackgroundResource(mGalleryItemBackground);
return imageView;
}
}
}
I want to make a Toast if the text written is equal 12 in EditText box.
I used editText1.getText().toString() method but it seems not working.
What's wrong? Could you please check public void tikla() method? Thx.
On Java you cannot do this kind of comparation:
if(editText1.getText().toString()=="12")
You need to do:
if(editText1.getText().toString().equalsIgnoreCase("12"))
or
if(editText1.getText().toString().compareTo("12")==0)
This comparison in your code is not correct.
(editText1.getText().toString()=="12")
Comparing Strings is done via equals() not == operator.
You can do something like this:
if (editText1.getText().toString().compareTo("12") == 0)
using the java.lang.String.compareTo(java.lang.String) method.

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