First, make sure you add the new activity to your application's manifest
file. If it is not there you will not be able to launch it.
Second, the Intent class (which is used to start the second activity) has
methods for storing and retrieving certain types of data. You can store the
id in the intent and retrieve it in the second activity to display the
appropriate image.
Hope that helps,
Justin
----------------------------------------------------------------------
There are only 10 types of people in the world...
Those who know binary and those who don't.
----------------------------------------------------------------------
On Sat, Jun 26, 2010 at 9:12 AM, Justin <justinbrett1...@gmail.com> wrote:
> So I have Added a button. My Whole code looks like:
>
>
> ************************************************************************************************
> 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.webkit.WebView;
> import android.widget.AdapterView;
> import android.widget.BaseAdapter;
> import android.widget.Button;
> import android.widget.Gallery;
> import android.widget.ImageView;
> import android.widget.Toast;
> import android.widget.AdapterView.OnItemClickListener;
>
> public class DisplayViewsExample extends Activity
> {
> //---the images to display---
> Integer[] imageIDs = {
> R.drawable.pic01,
> R.drawable.pic02,
> R.drawable.pic03,
> R.drawable.pic04,
> R.drawable.pic05,
> R.drawable.pic06,
> R.drawable.pic07,
> R.drawable.pic08,
> R.drawable.pic09,
> R.drawable.pic10,
> R.drawable.pic11,
> R.drawable.pic12,
> R.drawable.pic13,
> R.drawable.pic14,
> R.drawable.pic15,
> R.drawable.pic16,
> R.drawable.pic17,
> R.drawable.pic18,
> R.drawable.pic19,
> R.drawable.pic20,
> R.drawable.pic21,
> R.drawable.pic22,
> R.drawable.pic23,
> R.drawable.pic24,
> R.drawable.pic25,
> R.drawable.pic26,
> R.drawable.pic27,
> R.drawable.pic28,
> R.drawable.pic29,
> R.drawable.pic30,
> R.drawable.pic31,
> R.drawable.pic32,
> R.drawable.pic33,
> R.drawable.pic34,
> R.drawable.pic35,
> R.drawable.pic36
>
> };
>
>
> @Override
> public void onCreate(Bundle savedInstanceState)
> {
> super.onCreate(savedInstanceState);
> setContentView(R.layout.displayview);
>
> 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)
> {
> //---display the images selected---
> ImageView imageView = (ImageView)
> findViewById(R.id.image1);
>
> imageView.setImageResource(imageIDs[position]);
> }
>
> });
> }
>
>
> public class ButtonPress extends Activity {
> protected void onCreate(Bundle icicle) {
> super.onCreate(icicle);
> setContentView(R.layout.displayview);
> final Button button = (Button) findViewById(R.id.bigpic);
> button.setOnClickListener(new View.OnClickListener() {
> public void onClick(View v) {
> // Perform action on click
> setContentView(R.layout.webviews);
> WebView wv = (WebView)
> findViewById(R.id.webview1);
>
> wv.loadUrl("file:///android_asset/index.html");
> }
>
> });
> }
> }
>
>
>
>
>
> public class ImageAdapter extends BaseAdapter
> {
> private Context context;
> private 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 ID of an item---
> public Object getItem(int position) {
> return position;
> }
>
> public long getItemId(int position) {
> return position;
> }
>
> //---returns an ImageView view---
> public View getView(int position, View convertView, ViewGroup
> parent) {
> ImageView imageView = new ImageView(context);
> imageView.setImageResource(imageIDs[position]);
> imageView.setScaleType(ImageView.ScaleType.FIT_XY);
> imageView.setLayoutParams(new Gallery.LayoutParams(150,
> 120));
> imageView.setBackgroundResource(itemBackground);
> return imageView;
> }
> }
> }
>
> *************************************************************************************************
>
> I have added the section:
>
>
> **************************************************************************************************
>
>
> public class ButtonPress extends Activity {
> protected void onCreate(Bundle icicle) {
> super.onCreate(icicle);
> setContentView(R.layout.displayview);
> final Button button = (Button) findViewById(R.id.bigpic);
> button.setOnClickListener(new View.OnClickListener() {
> public void onClick(View v) {
> // Perform action on click
> setContentView(R.layout.webviews);
> WebView wv = (WebView)
> findViewById(R.id.webview1);
>
> wv.loadUrl("file:///android_asset/index.html");
> }
>
> });
> }
> }
>
>
> ********************************************************************************************
> So When the button (bigpic) is pressed on (displayviews) xml file, it
> should load in a web broweser index.html from my asset directrory.
> The button displays, but when I press it, nothing happens, so I must
> be doing something wrong.
>
> I understand what that bit of code does, but can't work out how to
> make that bit of code as part of the running activity, as it doesn't
> seem to be?
>
> I also understand that under the 3 lines under "// Perform action on
> click" is where I would setContentView to the layout of my what my big
> picture would look like, and after that i would use my start activity,
> but I need to take accross to the new activty the variable 'position',
> how do I do that?
>
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