Logcat output? 01.04.2011 12:04 пользователь "mack2978" <[email protected]> написал: > Hi All, > > I am trying to show full image when clicking on one of the thumbnail > of grid view, i am able to view the grid with thumbnails but as soon > as i click on any thumbnail to show it in full screen, handling > onItemClick(), it crashes. below is my complete code, please help > > package com.example.HelloGridView; > > > import android.app.Activity; > import android.os.Bundle; > import android.content.Context; > import android.content.res.Resources; > import android.graphics.Bitmap; > import android.graphics.Canvas; > import android.graphics.Paint; > import android.graphics.drawable.Drawable; > import android.util.AttributeSet; > import android.view.View; > import android.view.ViewGroup; > import android.widget.AdapterView; > import android.widget.AdapterView.OnItemClickListener; > import android.widget.BaseAdapter; > import android.widget.GridView; > import android.widget.ImageView; > import android.widget.Toast; > > public class HelloGridView extends Activity{ > int current_pos; > private Bitmap[] mTileArray; > private MyView myView; > /** Called when the activity is first created. */ > @Override > public void onCreate(Bundle savedInstanceState) { > super.onCreate(savedInstanceState); > setContentView(R.layout.main); > GridView gridview = (GridView) findViewById(R.id.gridview); > gridview.setAdapter(new ImageAdapter(this)); > gridview.setOnItemClickListener(new OnItemClickListener() { > public void onItemClick(AdapterView<?> parent, View v, int > position, long id) > { > Toast.makeText(HelloGridView.this, "" + position, > Toast.LENGTH_SHORT).show(); > current_pos = position; > myView.invalidate(); > } > }); > > } > > public class ImageAdapter extends BaseAdapter { > private Context mContext; > > public ImageAdapter(Context c) { > mContext = c; > } > > public int getCount() { > return mThumbIds.length; > } > > public Object getItem(int position) { > return null; > } > > public long getItemId(int position) { > return 0; > } > > // create a new ImageView for each item referenced by the > Adapter > public View getView(int position, View convertView, ViewGroup > parent) { > ImageView imageView; > if (convertView == null) { // if it's not recycled, > initialize some attributes > imageView = new ImageView(mContext); > imageView.setLayoutParams(new > GridView.LayoutParams(85, 85)); > > imageView.setScaleType(ImageView.ScaleType.CENTER_CROP); > imageView.setPadding(8, 8, 8, 8); > } else { > imageView = (ImageView) convertView; > } > > imageView.setImageResource(mThumbIds[position]); > return imageView; > } > > // references to our images > private Integer[] mThumbIds = { > R.drawable.sample_0, R.drawable.sample_1, > R.drawable.sample_2, R.drawable.sample_0 > }; > } > > > > public class MyView extends View { > > private Bitmap[] mTileArray; > private final Paint mPaint = new Paint(); > > public MyView(Context context, AttributeSet attrs, int > defStyle) { > super(context, attrs, defStyle); > > //TypedArray a = context.obtainStyledAttributes(attrs, > R.styleable.TileView); > // mTileSize = a.getInt(R.styleable.TileView_tileSize, 12); > //a.recycle(); > Resources r = this.getContext().getResources(); > loadTile(0, > r.getDrawable(R.drawable.sample_0)); > loadTile(1, r.getDrawable(R.drawable.sample_1)); > loadTile(2, r.getDrawable(R.drawable.sample_2)); > loadTile(3, r.getDrawable(R.drawable.sample_0)); > } > > public MyView(Context context, AttributeSet attrs) { > super(context, attrs); > > Resources r = this.getContext().getResources(); > loadTile(0, > r.getDrawable(R.drawable.sample_0)); > loadTile(1, r.getDrawable(R.drawable.sample_1)); > loadTile(2, r.getDrawable(R.drawable.sample_2)); > loadTile(3, r.getDrawable(R.drawable.sample_0)); > } > > > public void loadTile(int key, Drawable tile) { > Bitmap bitmap = Bitmap.createBitmap(191, 285, > Bitmap.Config.ARGB_8888); > Canvas canvas = new Canvas(bitmap); > tile.setBounds(0, 0, 191, 285); > tile.draw(canvas); > mTileArray[key] = bitmap; > } > > > @Override > public void onDraw(Canvas canvas) { > super.onDraw(canvas); > canvas.drawBitmap(mTileArray[1], 0,0, mPaint); > > } > > } > > } > > -- > You received this message because you are subscribed to the Google > Groups "Android Developers" group. > To post to this group, send email to [email protected] > To unsubscribe from this group, send email to > [email protected] > For more options, visit this group at > http://groups.google.com/group/android-developers?hl=en
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