玩在ImageView的动画GIF图片文件文件、动画、图片、ImageView

2023-09-05 07:36:32 作者:溫柔的暴力

我想提出一个Android应用程序,在此我想在ImageView的播放GIF文件。我有一个尝试了很多办法,做了一个自定义类,但没有成功。

I am making an Android application, in which I want to play a GIF file in an imageview. I have a tried a lot of ways, made a custom class but haven't succeeded.

有没有人来实现这一点?

Has anyone implemented this before?

推荐答案

您可以找到样本code Android SDK的样本。 GIF图像显示在活动扩展查看

You can find sample code in the Android SDK samples. The gif image is displayed in activity that extends View

在code使用其他的gif图片比的ImageView

The code to use gif image other than ImageView is

import android.app.Activity;
import android.content.Context;
import android.graphics.*;
import android.graphics.drawable.*;
import android.os.Bundle;
import android.view.KeyEvent;
import android.view.*;

import java.io.IOException;
import java.io.InputStream;
import java.io.ByteArrayOutputStream;

public class BitmapDecode extends Activity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(new SampleView(this));
    }

    private static class SampleView extends View {
        private Bitmap mBitmap;
        private Bitmap mBitmap2;
        private Bitmap mBitmap3;
        private Bitmap mBitmap4;
        private Drawable mDrawable;

        private Movie mMovie;
        private long mMovieStart;

        private static 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();
        }

        public SampleView(Context context) {
            super(context);
            setFocusable(true);

            java.io.InputStream is;
            is = context.getResources().openRawResource(R.drawable.beach);

            BitmapFactory.Options opts = new BitmapFactory.Options();
            Bitmap bm;

            opts.inJustDecodeBounds = true;
            bm = BitmapFactory.decodeStream(is, null, opts);

            // now opts.outWidth and opts.outHeight are the dimension of the
            // bitmap, even though bm is null

            opts.inJustDecodeBounds = false;    // this will request the bm
            opts.inSampleSize = 4;             // scaled down by 4
            bm = BitmapFactory.decodeStream(is, null, opts);

            mBitmap = bm;

            // decode an image with transparency
            is = context.getResources().openRawResource(R.drawable.frog);
            mBitmap2 = BitmapFactory.decodeStream(is);

            // create a deep copy of it using getPixels() into different configs
            int w = mBitmap2.getWidth();
            int h = mBitmap2.getHeight();
            int[] pixels = new int[w*h];
            mBitmap2.getPixels(pixels, 0, w, 0, 0, w, h);
            mBitmap3 = Bitmap.createBitmap(pixels, 0, w, w, h,
                                           Bitmap.Config.ARGB_8888);
            mBitmap4 = Bitmap.createBitmap(pixels, 0, w, w, h,
                                           Bitmap.Config.ARGB_4444);

            mDrawable = context.getResources().getDrawable(R.drawable.button);
            mDrawable.setBounds(150, 20, 300, 100);

            is = context.getResources().openRawResource(R.drawable.animated_gif);
            if (true) {
                mMovie = Movie.decodeStream(is);
            } else {
                byte[] array = streamToBytes(is);
                mMovie = Movie.decodeByteArray(array, 0, array.length);
            }
        }

        @Override protected void onDraw(Canvas canvas) {
            canvas.drawColor(0xFFCCCCCC);            

            Paint p = new Paint();
            p.setAntiAlias(true);

            canvas.drawBitmap(mBitmap, 10, 10, null);
            canvas.drawBitmap(mBitmap2, 10, 170, null);
            canvas.drawBitmap(mBitmap3, 110, 170, null);
            canvas.drawBitmap(mBitmap4, 210, 170, null);

            mDrawable.draw(canvas);

            long now = android.os.SystemClock.uptimeMillis();
            if (mMovieStart == 0) {   // first time
                mMovieStart = now;
            }
            if (mMovie != null) {
                int dur = mMovie.duration();
                if (dur == 0) {
                    dur = 1000;
                }
                int relTime = (int)((now - mMovieStart) % dur);
                mMovie.setTime(relTime);
                mMovie.draw(canvas, getWidth() - mMovie.width(),
                            getHeight() - mMovie.height());
                invalidate();
            }
        }
    }
}

您可以使用这些链接,以及

You can use these links as well

http://weavora.com /博客/ 2012/02/07 / Android系统如何使用的动画,GIF /

的http://droid-blog.net/2011/10/14/tutorial-how-to-use-animated-gifs-in-android-part-1/