压缩图像大小app - Android 项目源代码

package com.demo.example.mytouch; import android.content.Context; import android.content.res.Configuration; import android.graphics.Bitmap; import android.graphics.Canvas; import android.graphics.Matrix; import android.graphics.PointF; import android.graphics.RectF; import android.graphics.drawable.Drawable; import android.net.Uri; import android.os.Build; import android.os.Bundle; import android.os.Parcelable; import android.util.AttributeSet; import android.util.Log; import android.view.GestureDetector; import android.view.MotionEvent; import android.view.ScaleGestureDetector; import android.view.View; import android.view.animation.AccelerateDecelerateInterpolator; import android.widget.OverScroller; import android.widget.Scroller; import androidx.appcompat.widget.AppCompatImageView; public class TouchImageView extends AppCompatImageView { private static final String DEBUG = "DEBUG"; private static final float SUPER_MAX_MULTIPLIER = 1.25f; private static final float SUPER_MIN_MULTIPLIER = 0.75f; public Context context; private ZoomVariables delayedZoomVariables; public float[] f781m; public Fling fling; private boolean imageRenderedAtLeastOnce; public GestureDetector mGestureDetector; public ScaleGestureDetector mScaleDetector; private ScaleType mScaleType; private float matchViewHeight; private float matchViewWidth; public Matrix matrix; public float maxScale; public float minScale; public float normalizedScale; private boolean onDrawReady; private float prevMatchViewHeight; private float prevMatchViewWidth; private Matrix prevMatrix; private int prevViewHeight; private int prevViewWidth; public State state; private float superMaxScale; private float superMinScale; public int viewHeight; public int viewWidth; public GestureDetector.OnDoubleTapListener doubleTapListener = null; public OnTouchImageViewListener touchImageViewListener = null; public OnTouchListener userTouchListener = null; public interface OnTouchImageViewListener { void onMove(); } public enum State { NONE, DRAG, ZOOM, FLING, ANIMATE_ZOOM } private float getFixTrans(float f, float f2, float f3) { float f4; float f5; if (f3 <= f2) { f4 = f2 - f3; f5 = 0.0f; } else { f5 = f2 - f3; f4 = 0.0f; } if (f < f5) { return (-f) + f5; } if (f > f4) { return (-f) + f4; } return 0.0f; } public float getFixDragTrans(float f, float f2, float f3) { if (f3 <= f2) { return 0.0f; } return f; } public static class AnonymousClass1 { static final int[] $SwitchMap$android$widget$ImageView$ScaleType; static { int[] iArr = new int[ScaleType.values().length]; $SwitchMap$android$widget$ImageView$ScaleType = iArr; iArr[ScaleType.CENTER.ordinal()] = 1; $SwitchMap$android$widget$ImageView$ScaleType[ScaleType.CENTER_CROP.ordinal()] = 2; $SwitchMap$android$widget$ImageView$ScaleType[ScaleType.CENTER_INSIDE.ordinal()] = 3; $SwitchMap$android$widget$ImageView$ScaleType[ScaleType.FIT_CENTER.ordinal()] = 4; $SwitchMap$android$widget$ImageView$ScaleType[ScaleType.FIT_XY.ordinal()] = 5; } AnonymousClass1() { } } public class CompatScroller { boolean isPreGingerbread; OverScroller overScroller; Scroller scroller; public CompatScroller(Context context) { if (Build.VERSION.SDK_INT < 9) { this.isPreGingerbread = true; this.scroller = new Scroller(context); return; } this.isPreGingerbread = false; this.overScroller = new OverScroller(context); } public void fling(int i, int i2, int i3, int i4, int i5, int i6, int i7, int i8) { if (this.isPreGingerbread) { this.scroller.fling(i, i2, i3, i4, i5, i6, i7, i8); } else { this.overScroller.fling(i, i2, i3, i4, i5, i6, i7, i8); } } public void forceFinished(boolean z) { if (this.isPreGingerbread) { this.scroller.forceFinished(z); } else { this.overScroller.forceFinished(z); } } public boolean isFinished() { if (this.isPreGingerbread) { return this.scroller.isFinished(); } return this.overScroller.isFinished(); } public boolean computeScrollOffset() { if (this.isPreGingerbread) { return this.scroller.computeScrollOffset(); } this.overScroller.computeScrollOffset(); return this.overScroller.computeScrollOffset(); } public int getCurrX() { if (this.isPreGingerbread) { return this.scroller.getCurrX(); } return this.overScroller.getCurrX(); } public int getCurrY() { if (this.isPreGingerbread) { return this.scroller.getCurrY(); } return this.overScroller.getCurrY(); } } private class DoubleTapZoom implements Runnable { private static final float ZOOM_TIME = 500.0f; private float bitmapX; private float bitmapY; private PointF endTouch; private AccelerateDecelerateInterpolator interpolator = new AccelerateDecelerateInterpolator(); private long startTime = System.currentTimeMillis(); private PointF startTouch; private float startZoom; private boolean stretchImageToSuper; private float targetZoom; DoubleTapZoom(float f, float f2, float f3, boolean z) { TouchImageView.this.setState(State.ANIMATE_ZOOM); this.startZoom = TouchImageView.this.normalizedScale; this.targetZoom = f; this.stretchImageToSuper = z; PointF transformCoordTouchToBitmap = TouchImageView.this.transformCoordTouchToBitmap(f2, f3, false); this.bitmapX = transformCoordTouchToBitmap.x; float f4 = transformCoordTouchToBitmap.y; this.bitmapY = f4; this.startTouch = TouchImageView.this.transformCoordBitmapToTouch(this.bitmapX, f4); this.endTouch = new PointF((float) (TouchImageView.this.viewWidth / 2), (float) (TouchImageView.this.viewHeight / 2)); } @Override public void run() { float interpolate = interpolate(); TouchImageView.this.scaleImage(calculateDeltaScale(interpolate), this.bitmapX, this.bitmapY, this.stretchImageToSuper); translateImageToCenterTouchPosition(interpolate); TouchImageView.this.fixScaleTrans(); TouchImageView touchImageView = TouchImageView.this; touchImageView.setImageMatrix(touchImageView.matrix); if (TouchImageView.this.touchImageViewListener != null) { TouchImageView.this.touchImageViewListener.onMove(); } if (interpolate < 1.0f) { TouchImageView.this.compatPostOnAnimation(this); } else { TouchImageView.this.setState(State.NONE); } } private void translateImageToCenterTouchPosition(float f) { float f2 = this.startTouch.x + ((this.endTouch.x - this.startTouch.x) * f); float f3 = this.startTouch.y +