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POCode works on API 8 and can't on API 9 or 10
 

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  1. POCode works on API 8 and can't on API 9 or 10
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    <p>For some reason my code works perfectly for Froyo(API 8) but gives me a Stopped Unexpectedly/Force Close error when I try to run it on API 9 or 10, AVD and phones give me the same error message. Any idea as to why? My code for review:</p> <p>All pages look similar to ViewActivity.java. only difference id the drawable called.</p> <p>ViewActivity.java:</p> <pre><code> import android.app.Activity; import android.content.Intent; import android.graphics.Bitmap; import android.graphics.BitmapFactory; import android.os.Bundle; import android.view.Menu; import android.view.MenuItem; public class ViewActivity extends Activity { /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); //creates view TouchImageView img = new TouchImageView(this); //sets image Bitmap image = BitmapFactory.decodeResource(getResources(), R.drawable.largeimage1); img.setImageBitmap(image); img.setMaxZoom(3f); setContentView(img); } //Creates the options menu @Override public boolean onCreateOptionsMenu(Menu menu) { super.onCreateOptionsMenu(menu); getMenuInflater().inflate(R.menu.echooptions, menu); return true; } //Starts the chosen menu activity @Override public boolean onOptionsItemSelected(MenuItem item) { switch (item.getItemId()) { case R.id.back_item: Intent intentb = new Intent(this, page16.class); startActivity(intentb); return true; case R.id.next_item: Intent intentn = new Intent(this, page2.class); startActivity(intentn); return true; case R.id.about_menu_item: Intent intenta = new Intent(this, AboutActivity.class); startActivity(intenta); return true; case R.id.tablecontents: return true; case R.id.page1: Intent intent1 = new Intent(this, ViewActivity.class); startActivity(intent1); return true; case R.id.page2: Intent intent2 = new Intent(this, page2.class); startActivity(intent2); return true; default: return super.onOptionsItemSelected(item); } } } </code></pre> <p>TouchImageView.java:</p> <pre><code> import android.content.Context; import android.graphics.Bitmap; import android.graphics.Matrix; import android.graphics.PointF; import android.view.MotionEvent; import android.view.ScaleGestureDetector; import android.view.View; import android.widget.ImageView; public class TouchImageView extends ImageView { Matrix matrix = new Matrix(); // We can be in one of these 3 states static final int NONE = 0; static final int DRAG = 1; static final int ZOOM = 2; int mode = NONE; // Remember some things for zooming PointF last = new PointF(); PointF start = new PointF(); float minScale = 1f; float maxScale = 3f; float[] m; float redundantXSpace, redundantYSpace; float width, height; static final int CLICK = 3; float saveScale = 1f; float right, bottom, origWidth, origHeight, bmWidth, bmHeight; ScaleGestureDetector mScaleDetector; Context context; public TouchImageView(Context context) { super(context); super.setClickable(true); this.context = context; mScaleDetector = new ScaleGestureDetector(context, new ScaleListener()); matrix.setTranslate(1f, 1f); m = new float[9]; setImageMatrix(matrix); setScaleType(ScaleType.MATRIX); setOnTouchListener(new OnTouchListener() { @Override public boolean onTouch(View v, MotionEvent event) { mScaleDetector.onTouchEvent(event); matrix.getValues(m); float x = m[Matrix.MTRANS_X]; float y = m[Matrix.MTRANS_Y]; PointF curr = new PointF(event.getX(), event.getY()); switch (event.getAction()) { case MotionEvent.ACTION_DOWN: last.set(event.getX(), event.getY()); start.set(last); mode = DRAG; break; case MotionEvent.ACTION_MOVE: if (mode == DRAG) { float deltaX = curr.x - last.x; float deltaY = curr.y - last.y; float scaleWidth = Math.round(origWidth * saveScale); float scaleHeight = Math.round(origHeight * saveScale); if (scaleWidth &lt; width) { deltaX = 0; if (y + deltaY &gt; 0) deltaY = -y; else if (y + deltaY &lt; -bottom) deltaY = -(y + bottom); } else if (scaleHeight &lt; height) { deltaY = 0; if (x + deltaX &gt; 0) deltaX = -x; else if (x + deltaX &lt; -right) deltaX = -(x + right); } else { if (x + deltaX &gt; 0) deltaX = -x; else if (x + deltaX &lt; -right) deltaX = -(x + right); if (y + deltaY &gt; 0) deltaY = -y; else if (y + deltaY &lt; -bottom) deltaY = -(y + bottom); } matrix.postTranslate(deltaX, deltaY); last.set(curr.x, curr.y); } break; case MotionEvent.ACTION_UP: mode = NONE; int xDiff = (int) Math.abs(curr.x - start.x); int yDiff = (int) Math.abs(curr.y - start.y); if (xDiff &lt; CLICK &amp;&amp; yDiff &lt; CLICK) performClick(); break; case MotionEvent.ACTION_POINTER_UP: mode = NONE; break; } setImageMatrix(matrix); invalidate(); return true; // indicate event was handled } }); } @Override public void setImageBitmap(Bitmap bm) { super.setImageBitmap(bm); bmWidth = bm.getWidth(); bmHeight = bm.getHeight(); } public void setMaxZoom(float x) { maxScale = x; } private class ScaleListener extends ScaleGestureDetector.SimpleOnScaleGestureListener { @Override public boolean onScaleBegin(ScaleGestureDetector detector) { mode = ZOOM; return true; } @Override public boolean onScale(ScaleGestureDetector detector) { float mScaleFactor = (float)Math.min(Math.max(.95f, detector.getScaleFactor()), 1.05); float origScale = saveScale; saveScale *= mScaleFactor; if (saveScale &gt; maxScale) { saveScale = maxScale; mScaleFactor = maxScale / origScale; } else if (saveScale &lt; minScale) { saveScale = minScale; mScaleFactor = minScale / origScale; } right = width * saveScale - width - (2 * redundantXSpace * saveScale); bottom = height * saveScale - height - (2 * redundantYSpace * saveScale); if (origWidth * saveScale &lt;= width || origHeight * saveScale &lt;= height) { matrix.postScale(mScaleFactor, mScaleFactor, width / 2, height / 2); if (mScaleFactor &lt; 1) { matrix.getValues(m); float x = m[Matrix.MTRANS_X]; float y = m[Matrix.MTRANS_Y]; if (mScaleFactor &lt; 1) { if (Math.round(origWidth * saveScale) &lt; width) { if (y &lt; -bottom) matrix.postTranslate(0, -(y + bottom)); else if (y &gt; 0) matrix.postTranslate(0, -y); } else { if (x &lt; -right) matrix.postTranslate(-(x + right), 0); else if (x &gt; 0) matrix.postTranslate(-x, 0); } } } } else { matrix.postScale(mScaleFactor, mScaleFactor, detector.getFocusX(), detector.getFocusY()); matrix.getValues(m); float x = m[Matrix.MTRANS_X]; float y = m[Matrix.MTRANS_Y]; if (mScaleFactor &lt; 1) { if (x &lt; -right) matrix.postTranslate(-(x + right), 0); else if (x &gt; 0) matrix.postTranslate(-x, 0); if (y &lt; -bottom) matrix.postTranslate(0, -(y + bottom)); else if (y &gt; 0) matrix.postTranslate(0, -y); } } return true; } } @Override protected void onMeasure (int widthMeasureSpec, int heightMeasureSpec) { super.onMeasure(widthMeasureSpec, heightMeasureSpec); width = MeasureSpec.getSize(widthMeasureSpec); height = MeasureSpec.getSize(heightMeasureSpec); //Fit to screen. float scale; float scaleX = (float)width / (float)bmWidth; float scaleY = (float)height / (float)bmHeight; scale = Math.min(scaleX, scaleY); matrix.setScale(scale, scale); setImageMatrix(matrix); saveScale = 1f; // Center the image redundantYSpace = (float)height - (scale * (float)bmHeight) ; redundantXSpace = (float)width - (scale * (float)bmWidth); redundantYSpace /= (float)2; redundantXSpace /= (float)2; matrix.postTranslate(redundantXSpace, redundantYSpace); origWidth = width - 2 * redundantXSpace; origHeight = height - 2 * redundantYSpace; right = width * saveScale - width - (2 * redundantXSpace * saveScale); bottom = height * saveScale - height - (2 * redundantYSpace * saveScale); setImageMatrix(matrix); } } </code></pre>
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    1. COYou should post logcat here.
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      1. POCode works on API 8 and can't on API 9 or 10
      1. USslkorolev
 

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