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POGrid view image link to activites
 

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    <p>I have hit a brick wall, a tutorial I have followed simply enlarges the images on click.</p> <p>what I want to do is for each image it opens a different activity. </p> <p>eg the algebra image open the algebraactivity, decimal image on click opens decimal activity etc.</p> <p>this is probably simple, but it is not very obvious to me at the moment.</p> <p>Here is the main activity.</p> <pre><code>import android.app.Activity; import android.content.Intent; import android.os.Bundle; import android.view.View; import android.widget.AdapterView; import android.widget.AdapterView.OnItemClickListener; import android.widget.GridView; public class MathsSubjectsActivity extends Activity { // Keep all Images in array public Integer[] mThumbIds = { R.drawable.algebraicon,R.drawable.coordsicon, R.drawable.decimalsicon,R.drawable.fractionsicon, R.drawable.algebraicon,R.drawable.algebraicon, R.drawable.powersicon,R.drawable.algebraicon, R.drawable.coordsicon,R.drawable.algebraicon, }; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.subjects); GridView gridView = (GridView) findViewById(R.id.grid_view); // Instance of ImageAdapter Class gridView.setAdapter(new ImageAdapter(this,mThumbIds)); /** * On Click event for Single Gridview Item * */ gridView.setOnItemClickListener(new OnItemClickListener() { @Override public void onItemClick(AdapterView&lt;?&gt; parent, View v, int position, long id) { switch(position) { case 0: Intent login = new Intent(getApplicationContext(), MathsAlgebraActivity.class); login.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP); startActivity(login); break; case 1: Intent coords = new Intent(getApplicationContext(), MathsMultiActivity.class); coords.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP); startActivity(coords); break; case 2: Intent decim = new Intent(getApplicationContext(), MathsMultiActivity.class); decim.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP); startActivity(decim); break; //and so on for other activities. default: break; } } }); } } </code></pre> <p>Below is the image adapter which handles the images.</p> <pre><code>import android.content.Context; import android.view.View; import android.view.ViewGroup; import android.widget.BaseAdapter; import android.widget.GridView; import android.widget.ImageView; private Context mContext; private Integer[] resIds; //Constructor public ImageAdapter(Context c,Integer[] resIds){ mContext = c; this.resIds=resIds; } @Override public int getCount() { return resIds.length; } @Override public Object getItem(int position) { return resIds[position]; } @Override public long getItemId(int position) { return 0; } @Override public View getView(int position, View convertView, ViewGroup parent) { ImageView imageView = new ImageView(mContext); imageView.setImageResource(resIds[position]); imageView.setScaleType(ImageView.ScaleType.CENTER_CROP); imageView.setLayoutParams(new GridView.LayoutParams(70, 70)); return imageView; } } </code></pre> <p>can run case 0 but not 1 or 2.</p> <p>errors from log: </p> <pre><code> Thread [&lt;1&gt; main] (Suspended (exception ActivityNotFoundException)) Instrumentation.checkStartActivityResult(int, Object) line: 1405 Instrumentation.execStartActivity(Context, IBinder, IBinder, Activity, Intent, int) line: 1379 MathsSubjectsActivity(Activity).startActivityForResult(Intent, int) line: 2827 MathsSubjectsActivity(Activity).startActivity(Intent) line: 2933 MathsSubjectsActivity$1.onItemClick(AdapterView, View, int, long) line: 51 GridView(AdapterView).performItemClick(View, int, long) line: 284 AbsListView$PerformClick.run() line: 1812 ViewRoot(Handler).handleCallback(Message) line: 587 ViewRoot(Handler).dispatchMessage(Message) line: 92 Looper.loop() line: 130 ActivityThread.main(String[]) line: 3683 Method.invokeNative(Object, Object[], Class, Class[], Class, int, boolean) line: not available [native method] Method.invoke(Object, Object...) line: 507 ZygoteInit$MethodAndArgsCaller.run() line: 839 ZygoteInit.main(String[]) line: 597 NativeStart.main(String[]) line: not available [native method] </code></pre>
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    1. COCan you paste the logs for the crash for case 1,2?
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    2. COYour logs say that you have not defined the Activity MathsMultiActivity in the Manifest.xml.Do the necessary entry in the manifest.
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