Ok so I have all the code in place to create a random degree of rotation between a start and finish... works great... i have a progress bar that i can pull and watch the image rotate on the screen, while i drag it... but when i click the button, it just sits there, and then finally shows the image at its last state... i want to see the image rotating just as i do when i drag my finger on it? what am i doing wrong! it has to be something simple. please help... I have tried invalidate and postinvalidate nothing... main.xml: <?xml version=*"1.0"* encoding=*"utf-8"*?>
<LinearLayout xmlns:android=*"http://schemas.android.com/apk/res/android"; * android:orientation=*"vertical" * android:layout_width=*"fill_parent" * android:layout_height=*"fill_parent" * > <TextView android:layout_width=*"fill_parent" * android:layout_height=*"wrap_content" * android:text=*"@string/hello" * /> <Button android:text=*"Button"* android:id=*"@+id/button1"* android:layout_width=*"wrap_content"* android:layout_height=*"wrap_content"* ></Button> <Spinner android:id=*"@+id/scale" * android:layout_width=*"fill_parent" * android:layout_height=*"wrap_content" * /> <SeekBar android:id=*"@+id/rotate" * android:layout_width=*"fill_parent" * android:layout_height=*"wrap_content" * android:layout_margin=*"5px" * android:max=*"360" * android:progress=*"0" * /> <ImageView android:id=*"@+id/imageview" * android:layout_gravity=*"center" * android:layout_width=*"fill_parent" * android:layout_height=*"fill_parent" * android:scaleType=*"center" * /> </LinearLayout> Main file: package com.exercise.AndroidBitmap; import java.util.Random; import android.app.Activity; import android.app.AlertDialog; import android.graphics.Bitmap; import android.graphics.BitmapFactory; import android.graphics.Matrix; import android.os.Bundle; import android.util.Log; import android.view.View; import android.widget.AdapterView; import android.widget.ArrayAdapter; import android.widget.Button; import android.widget.ImageView; import android.widget.SeekBar; import android.widget.Spinner; public class AndroidBitmap extends Activity { //private final String imageInSD = "/sdcard/er.PNG"; ImageView myImageView; Spinner spinnerScale; SeekBar seekbarRotate; private static final String[] strScale = {"0.2x", "0.5x", "1.0x", "2.0x", "5.0x"}; private static final Float[] floatScale = {0.2F, 0.5F, 1F, 2F, 5F}; private final int defaultSpinnerScaleSelection = 2; private ArrayAdapter<String> adapterScale; private float curScale = 1F; private float curRotate = 0F; //spinning variables private static int ROTATETO; private int START = 720; private int END = 1440; Random random = new Random(); Bitmap bitmap; int bmpWidth, bmpHeight; /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); final Button button = (Button) findViewById(R.id.button1); myImageView = (ImageView)findViewById(R.id.imageview); spinnerScale = (Spinner)findViewById(R.id.scale); seekbarRotate = (SeekBar)findViewById(R.id.rotate); adapterScale = new ArrayAdapter<String>(this, android.R.layout.simple_spinner_item, strScale); adapterScale.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item); spinnerScale.setAdapter(adapterScale); spinnerScale.setSelection(defaultSpinnerScaleSelection); curScale = floatScale[defaultSpinnerScaleSelection]; // bitmap = BitmapFactory.decodeFile(imageInSD); bitmap = BitmapFactory.decodeResource(getResources(), R.drawable.icon); bmpWidth = bitmap.getWidth(); bmpHeight = bitmap.getHeight(); drawMatrix(); spinnerScale.setOnItemSelectedListener(spinnerScaleOnItemSelectedListener); seekbarRotate.setOnSeekBarChangeListener(seekbarRotateSeekBarChangeListener); button.setOnClickListener(new View.OnClickListener() { public void onClick(View v) { //AlertDialog.Builder builder = new AlertDialog.Builder(AndroidBitmap.this); //builder.setMessage("hi"); ///AlertDialog alert = builder.create(); //alert.show(); RandomInteger(START, END, random); Log.d("up", Integer.toString(ROTATETO) ); for (int i = 0; i < ROTATETO; i++) { curRotate = (float)i; drawMatrix(); //myImageView.postInvalidate(); } } }); } private void drawMatrix(){ Matrix matrix = new Matrix(); matrix.postScale(curScale, curScale); matrix.postRotate(curRotate); Bitmap resizedBitmap = Bitmap.createBitmap(bitmap, 0, 0, bmpWidth, bmpHeight, matrix, true); myImageView.setImageBitmap(resizedBitmap); myImageView.postInvalidate(); } private SeekBar.OnSeekBarChangeListener seekbarRotateSeekBarChangeListener = new SeekBar.OnSeekBarChangeListener(){ @Override public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) { // TODO Auto-generated method stub curRotate = (float)progress; drawMatrix(); } @Override public void onStartTrackingTouch(SeekBar seekBar) { // TODO Auto-generated method stub } @Override public void onStopTrackingTouch(SeekBar seekBar) { // TODO Auto-generated method stub }}; private Spinner.OnItemSelectedListener spinnerScaleOnItemSelectedListener = new Spinner.OnItemSelectedListener(){ @Override public void onItemSelected(AdapterView<?> arg0, View arg1, int arg2, long arg3) { // TODO Auto-generated method stub curScale = floatScale[arg2]; drawMatrix(); } @Override public void onNothingSelected(AdapterView<?> arg0) { // TODO Auto-generated method stub spinnerScale.setSelection(defaultSpinnerScaleSelection); curScale = floatScale[defaultSpinnerScaleSelection]; }}; private static void RandomInteger(int aStart, int aEnd, Random aRandom){ if ( aStart > aEnd ) { //throw new IllegalArgumentException("Start cannot exceed End."); } //get the range, casting to long to avoid overflow problems long range = (long)aEnd - (long)aStart + 1; // compute a fraction of the range, 0 <= frac < range long fraction = (long)(range * aRandom.nextDouble()); ROTATETO = (int)(fraction + aStart); } } -- You received this message because you are subscribed to the Google Groups "Android Developers" group. 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