Android Movie Class Information

Question

I am trying to show an animated gif. By the way, I am doing this with the Movie class. But the Android developer page does not provide information about the methods.

How do I resize a gif to fit the layout?

Thanks in advance

Answer 1

I am trying to do the same (to display an animated GIF) using this method.

It only works if you specify use-sdk android: minSdkVersion = "3"

To scale ...

package com.example.GIFShow; import android.content.Context; import android.graphics.Bitmap; import android.graphics.Canvas; import android.graphics.Movie; import android.graphics.Rect; import android.util.Log; import android.view.View; class MYGIFView extends View { private static final boolean twigDebug = true; private Movie mMovie; private long mMovieStart; MYGIFView(Context aContext, Movie aMovie) { super(aContext); if (aMovie == null) return; mMovie = aMovie; mMovieStart = android.os.SystemClock.uptimeMillis(); } protected void onDraw(Canvas aCanvas) { super.onDraw(aCanvas); if (mMovie == null || mMovie.duration() == 0) return; int relTime = (int)((android.os.SystemClock.uptimeMillis() - mMovieStart) % mMovie.duration()); mMovie.setTime(relTime); Bitmap movieBitmap = Bitmap.createBitmap(mMovie.width(), mMovie.height(), Bitmap.Config.ARGB_8888); Canvas movieCanvas = new Canvas(movieBitmap); mMovie.draw(movieCanvas, 0, 0); Rect src = new Rect(0, 0, mMovie.width(), mMovie.height()); Rect dst = new Rect(0, 0, this.getWidth(), this.getHeight()); aCanvas.drawBitmap(movieBitmap, src, dst, null); this.invalidate(); } } 

Now you can get and pass the Movie object to the class in one of two ways ...

Get input GIF Movie object from project dropdown

  Movie movie = Movie.decodeStream (context.getResources().openRawResource(R.drawable.somefile)); 

Or get the input GIF Movie object from external storage (/ mnt / sdcard ... / mnt / extSdCard ... etc.)

  Movie movie = null; try { FileInputStream stream = new FileInputStream(Environment.getExternalStorageDirectory() + "/somefolder/somefile.gif"); try { byte[] byteStream = streamToBytes(stream); movie = Movie.decodeByteArray(byteStream, 0, byteStream.length); } finally { stream.close(); } } catch (IOException e) { } 

Now set the GIF / Movie motion picture to your activity:

  View view = new MYGIFView(this, movie); setContentView(view); 

If you get a GIF image / Movie object from external storage (second example), you will need a supporting procedure:

 private byte[] streamToBytes(InputStream is) { ByteArrayOutputStream os = new ByteArrayOutputStream(1024); byte[] buffer = new byte[1024]; int len; try { while ((len = is.read(buffer)) >= 0) os.write(buffer, 0, len); } catch (java.io.IOException e) { } return os.toByteArray(); } 

Answer 2

 You answer is good. It helped me alot.I have changed one thing for performance .Moved the bitmap creation to outside of ondraw import java.io.InputStream; import android.content.Context; import android.graphics.Bitmap; import android.graphics.Canvas; import android.graphics.Color; import android.graphics.Movie; import android.graphics.Rect; import android.os.SystemClock; import android.util.AttributeSet; import android.view.View; public class GifView extends View { private Movie mMovie; InputStream mStream; long mMoviestart; private Context context; public GifView(Context context, AttributeSet attrs, int defStyleAttr) { super(context, attrs, defStyleAttr); this.context = context; init(); } public GifView(Context context, AttributeSet attrs) { super(context, attrs); this.context = context; init(); } public GifView(Context context) { super(context); this.context = context; init(); } Bitmap movieBitmap = null; private void init() { InputStream object = this.getResources().openRawResource( R.raw.postloadinganimation); mMovie = Movie.decodeStream(object);// context.getResources().getAssets().open("PostLoadingAnimation.gif")); movieBitmap = Bitmap.createBitmap(mMovie.width(), mMovie.height(), Bitmap.Config.ARGB_8888); } @Override protected void onDraw(Canvas canvas) { canvas.drawColor(Color.TRANSPARENT); super.onDraw(canvas); final long now = SystemClock.uptimeMillis(); if (mMoviestart == 0) { mMoviestart = now; } final int relTime = (int) ((now - mMoviestart) % mMovie.duration()); mMovie.setTime(relTime); // mMovie.draw(canvas, 0, 0); Canvas movieCanvas = new Canvas(movieBitmap); mMovie.draw(movieCanvas, 0, 0); Rect src = new Rect(0, 0, mMovie.width(), mMovie.height()); Rect dst = new Rect(0, 0, this.getWidth(), this.getHeight()); canvas.drawBitmap(movieBitmap, src, dst, null); this.invalidate(); } } 

Answer 3

I know this is a very old post.

But you can try this ...

 @Override protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { if (mMovie != null) { int movieWidth = mMovie.width(); int movieHeight = mMovie.height(); /** Calculate horizontal scaling*/ float scaleH = 1f; int measureModeWidth = MeasureSpec.getMode(widthMeasureSpec); if (measureModeWidth != MeasureSpec.UNSPECIFIED) { int maximumWidth = MeasureSpec.getSize(widthMeasureSpec); if (movieWidth > maximumWidth) { scaleH = (float) movieWidth / (float) maximumWidth; }else{ scaleH = (float) maximumWidth / (float) movieWidth; } } /** calculate vertical scaling*/ float scaleW = 1f; int measureModeHeight = MeasureSpec.getMode(heightMeasureSpec); if (measureModeHeight != MeasureSpec.UNSPECIFIED) { int maximumHeight = MeasureSpec.getSize(heightMeasureSpec); if (movieHeight > maximumHeight) { scaleW = (float) movieHeight / (float) maximumHeight; }else{ scaleW = (float) maximumHeight / (float) movieHeight; } } /** calculate overall scale*/ mScale = Math.max(scaleH, scaleW); mMeasuredMovieWidth = (int) (movieWidth * mScale); mMeasuredMovieHeight = (int) (movieHeight * mScale); setMeasuredDimension(widthMeasureSpec, heightMeasureSpec); } else { /*No movie set, just set minimum available size.*/ setMeasuredDimension(getSuggestedMinimumWidth(), getSuggestedMinimumHeight()); } } private void drawMovieFrame(Canvas canvas) { mMovie.setTime(mCurrentAnimationTime); canvas.save(Canvas.MATRIX_SAVE_FLAG); canvas.scale(mScale, mScale); mLeft = (getWidth() - mMeasuredMovieWidth) / 2f; mTop = (getHeight() - mMeasuredMovieHeight) / 2f; mMovie.draw(canvas, mLeft / mScale, mTop / mScale); canvas.restore(); }