android.graphics.Camera#save

Source File: AutoTextView.java From NewXmPluginSDK with Apache License 2.0

6 votes

@Override
protected void applyTransformation(float interpolatedTime, Transformation t) {
    final float fromDegrees = mFromDegrees;
    float degrees = fromDegrees + ((mToDegrees - fromDegrees) * interpolatedTime);

    final float centerX = mCenterX;
    final float centerY = mCenterY;
    final Camera camera = mCamera;
    final int derection = mTurnUp ? 1 : -1;

    final Matrix matrix = t.getMatrix();

    camera.save();
    if (mTurnIn) {
        camera.translate(0.0f, derection * mCenterY * (interpolatedTime - 1.0f), 0.0f);
    } else {
        camera.translate(0.0f, derection * mCenterY * (interpolatedTime), 0.0f);
    }
    camera.rotateX(degrees);
    camera.getMatrix(matrix);
    camera.restore();

    matrix.preTranslate(-centerX, -centerY);
    matrix.postTranslate(centerX, centerY);
}

Source File: YAxisAnimation.java From appcan-android with GNU Lesser General Public License v3.0

6 votes

protected final void applyTransformation(float paramFloat, Transformation transformation) {
    float f1 = 0.0F - 360.0F * paramFloat;
    float f2 = mWidth;
    float f3 = mHeight;
    final Camera camera = mCamera;
    Matrix matrix = transformation.getMatrix();
    camera.save();
    if ((0x1 & mRotationFlags) == 1)
        camera.rotateX(f1);
    if ((0x2 & mRotationFlags) == 2)
        camera.rotateY(f1);
    if ((0x4 & mRotationFlags) == 4)
        camera.rotateZ(f1);
    camera.getMatrix(matrix);
    camera.restore();
    matrix.preTranslate(-f2, -f3);
    matrix.postTranslate(f2, f3);
}

Source File: Rotate3dAnimation.java From codeexamples-android with Eclipse Public License 1.0

6 votes

@Override
protected void applyTransformation(float interpolatedTime, Transformation t) {
    final float fromDegrees = mFromDegrees;
    float degrees = fromDegrees + ((mToDegrees - fromDegrees) * interpolatedTime);

    final float centerX = mCenterX;
    final float centerY = mCenterY;
    final Camera camera = mCamera;

    final Matrix matrix = t.getMatrix();

    camera.save();
    if (mReverse) {
        camera.translate(0.0f, 0.0f, mDepthZ * interpolatedTime);
    } else {
        camera.translate(0.0f, 0.0f, mDepthZ * (1.0f - interpolatedTime));
    }
    camera.rotateY(degrees);
    camera.getMatrix(matrix);
    camera.restore();

    matrix.preTranslate(-centerX, -centerY);
    matrix.postTranslate(centerX, centerY);
}

Source File: Rotate3dAnimation.java From BookLoadingView with Apache License 2.0

6 votes

@Override
protected void applyTransformation(float interpolatedTime, Transformation t) {
    final float fromDegrees = mFromDegrees;
    float degrees = fromDegrees + ((mToDegrees - fromDegrees) * interpolatedTime);

    final float centerX = mCenterX;
    final float centerY = mCenterY;
    final Camera camera = mCamera;

    final Matrix matrix = t.getMatrix();

    camera.save();
    if (mReverse) {
        camera.translate(0.0f, 0.0f, mDepthZ * interpolatedTime);
    } else {
        camera.translate(0.0f, 0.0f, mDepthZ * (1.0f - interpolatedTime));
    }
    camera.rotateY(degrees);
    camera.getMatrix(matrix);
    camera.restore();

    matrix.preTranslate(-centerX, -centerY);
    matrix.postTranslate(centerX, centerY);
}

Source File: RotationDrawStrategy.java From youqu_master with Apache License 2.0

6 votes

/**
 * 根据角度绘制图标的类
 * @param canvas 画布
 * @param fraction 完成时间百分比
 * @param icon 图标
 * @param width view宽度
 * @param height view高度
 */
private void drawIconOne(Canvas canvas, float fraction, Bitmap icon, int width, int height) {
    Camera camera = new Camera();
    Paint paint = new Paint(Paint.ANTI_ALIAS_FLAG);
    canvas.save();
    int centerX = width / 2;
    int centerY = height / 2 - 200;
    int x = centerX - icon.getWidth()/2;
    int y = centerY - icon.getHeight()/2;
    Matrix matrix = new Matrix();
    matrix.postScale(1.7f, 1.7f, centerX, centerY);
    canvas.concat(matrix);
    canvas.clipRect(x, y, x + icon.getWidth() * fraction * 0.5f, y + icon.getHeight() * fraction * 0.5f);
    canvas.translate(centerX, centerY);
    camera.save();
    camera.rotateX(180);
    camera.rotateY(-180);
    camera.applyToCanvas(canvas);
    camera.restore();
    canvas.translate(-centerX, -centerY);
    canvas.drawBitmap(icon, x, y, paint);
    canvas.restore();
}

Source File: Rotate3DAnimation.java From Jreader with GNU General Public License v2.0

6 votes

/**
 * 执行顺序 matrix.preTranslate() -->  camera.rotateY(degrees) -->   matrix.postTranslate() -->   matrix.postScale()
 * @param interpolatedTime
 * @param t
 */
@Override
protected void applyTransformation(float interpolatedTime, Transformation t) {
    float degrees = mReverse ? mToDegrees + (mFromDegrees - mToDegrees) * interpolatedTime : mFromDegrees + (mToDegrees - mFromDegrees) * interpolatedTime;
    final Matrix matrix = t.getMatrix();

    final Camera camera = mCamera;

    camera.save();

    camera.rotateY(degrees);

    camera.getMatrix(matrix);
    camera.restore();

          //  matrix.preTranslate(-mPivotXValue, 0);      //在进行rotateY之前需要移动物体，让物体左边与Y轴对齐
          //  matrix.postTranslate(mPivotXValue, 0);      //还原物体位置

    if (mReverse) {
        matrix.postScale(1 + (scaleTimes - 1) * (1.0f - interpolatedTime), 1 + (scaleTimes - 1) * (1.0f - interpolatedTime), mPivotX - mPivotXValue , mPivotY - mPivotYValue);
    } else {
       // matrix.postScale(1 + (scaleTimes - 1) * interpolatedTime, 1 + (scaleTimes - 1) * interpolatedTime, mPivotX, mPivotY);
        matrix.postScale(1 + (scaleTimes - 1) * interpolatedTime, 1 + (scaleTimes - 1) * interpolatedTime, mPivotX - mPivotXValue , mPivotY - mPivotYValue );
    }
}

Source File: Rotate3dAnimation.java From Android-tv-widget with Apache License 2.0

6 votes

@Override
protected void applyTransformation(float interpolatedTime, Transformation t) {
    final float fromDegrees = mFromDegrees;
    float degrees = fromDegrees + ((mToDegrees - fromDegrees) * interpolatedTime);

    final float centerX = mCenterX;
    final float centerY = mCenterY;
    final Camera camera = mCamera;

    final Matrix matrix = t.getMatrix();

    camera.save();
    if (mReverse) {
        camera.translate(0.0f, 0.0f, mDepthZ * interpolatedTime);
    } else {
        camera.translate(0.0f, 0.0f, mDepthZ * (1.0f - interpolatedTime));
    }
    camera.rotateY(degrees);
    camera.getMatrix(matrix);
    camera.restore();

    matrix.preTranslate(-centerX, -centerY);
    matrix.postTranslate(centerX, centerY);
}

Source File: Rotate3dAnimation.java From android-tv-launcher with MIT License

6 votes

@Override
protected void applyTransformation(float interpolatedTime, Transformation t) {
    final float fromDegrees = mFromDegrees;
    float degrees = fromDegrees + ((mToDegrees - fromDegrees) * interpolatedTime);

    final float centerX = mCenterX;
    final float centerY = mCenterY;
    final Camera camera = mCamera;

    final Matrix matrix = t.getMatrix();

    camera.save();
    if (mReverse) {
        camera.translate(0.0f, 0.0f, mDepthZ * interpolatedTime);
    } else {
        camera.translate(0.0f, 0.0f, mDepthZ * (1.0f - interpolatedTime));
    }
    camera.rotateY(degrees);
    camera.getMatrix(matrix);
    camera.restore();

    matrix.preTranslate(-centerX, -centerY);
    matrix.postTranslate(centerX, centerY);
}

Source File: RotationDrawStrategy.java From styT with Apache License 2.0

5 votes

/**
 * 根据角度绘制图标的类
 * @param canvas 画布
 * @param degree 角度
 * @param icon 图标
 * @param width view宽度
 * @param height view高度
 */
private void drawIconThree(Canvas canvas, int degree, Bitmap icon, int width, int height) {
    Camera camera = new Camera();
    Paint paint = new Paint(Paint.ANTI_ALIAS_FLAG);
    int centerX = width / 2;
    int centerY = height / 2 - 200;
    int x = centerX - icon.getWidth()/2;
    int y = centerY - icon.getHeight()/2;
    Matrix matrix = new Matrix();
    matrix.postScale(1.7f, 1.7f, centerX, centerY);
    //绘制上半部分
    canvas.save();
    canvas.concat(matrix);
    canvas.clipRect(x, y, x + icon.getWidth(), y + icon.getHeight() / 2);
    canvas.drawBitmap(icon, x, y, paint);
    canvas.restore();

    //绘制下半部分
    canvas.save();
    canvas.concat(matrix);
    if (degree <= 90)
        canvas.clipRect(x, y, x + icon.getWidth(), y + icon.getHeight() / 2);
    else
        canvas.clipRect(x, y + icon.getHeight() / 2, x + icon.getWidth(), y + icon.getHeight());
    canvas.translate(centerX, centerY);
    camera.save();
    camera.rotateX(180 - degree);
    camera.applyToCanvas(canvas);
    camera.restore();
    canvas.translate(-centerX, -centerY);
    canvas.drawBitmap(icon, x, y, paint);
    canvas.restore();
}

Source File: Rotate3dAnimation.java From AnimationApiDemos with Apache License 2.0

5 votes

@Override
protected void applyTransformation(float interpolatedTime, Transformation t) {

	// 根据时间和起始终止的角度值，插值算出当前的角度：degrees
	final float fromDegrees = mFromDegrees;
	float degrees = fromDegrees
			+ ((mToDegrees - fromDegrees) * interpolatedTime);

	final float centerX = mCenterX;
	final float centerY = mCenterY;
	final Camera camera = mCamera;

	final Matrix matrix = t.getMatrix();

	camera.save();
	if (mReverse) {
		camera.translate(0.0f, 0.0f, mDepthZ * interpolatedTime);
	}
	else {
		camera.translate(0.0f, 0.0f, mDepthZ * (1.0f - interpolatedTime));
	}
	camera.rotateY(degrees);
	camera.getMatrix(matrix);
	camera.restore();

	//pre:
	matrix.preTranslate(-centerX, -centerY);
	//post:
	matrix.postTranslate(centerX, centerY);
}

Source File: FlipAndZoomAnimation.java From bither-android with Apache License 2.0

5 votes

@Override
protected void applyTransformation(float interpolatedTime, Transformation t) {
	final float fromDegrees = mFromDegrees;
	float degrees = fromDegrees
			+ ((mToDegrees - fromDegrees) * interpolatedTime);

	
	final float fromZ = mFromZ;
	float z = fromZ + ((mToZ - fromZ)*interpolatedTime);
	
	final float centerX = mCenterX;
	final float centerY = mCenterY;
	final Camera camera = mCamera;

	final Matrix matrix = t.getMatrix();

	camera.save();
	camera.translate(0, 0, z);
	camera.rotateY(degrees);
	
	camera.getMatrix(matrix);
	camera.restore();

	matrix.preTranslate(-centerX, -centerY);
	matrix.postTranslate(centerX, centerY);

}

Source File: AnimatorProxy.java From android-project-wo2b with Apache License 2.0

5 votes

private void transformMatrix(Matrix m, View view) {
    final float w = view.getWidth();
    final float h = view.getHeight();
    final boolean hasPivot = mHasPivot;
    final float pX = hasPivot ? mPivotX : w / 2f;
    final float pY = hasPivot ? mPivotY : h / 2f;

    final float rX = mRotationX;
    final float rY = mRotationY;
    final float rZ = mRotationZ;
    if ((rX != 0) || (rY != 0) || (rZ != 0)) {
        final Camera camera = mCamera;
        camera.save();
        camera.rotateX(rX);
        camera.rotateY(rY);
        camera.rotateZ(-rZ);
        camera.getMatrix(m);
        camera.restore();
        m.preTranslate(-pX, -pY);
        m.postTranslate(pX, pY);
    }

    final float sX = mScaleX;
    final float sY = mScaleY;
    if ((sX != 1.0f) || (sY != 1.0f)) {
        m.postScale(sX, sY);
        final float sPX = -(pX / w) * ((sX * w) - w);
        final float sPY = -(pY / h) * ((sY * h) - h);
        m.postTranslate(sPX, sPY);
    }

    m.postTranslate(mTranslationX, mTranslationY);
}

Source File: Rotate3dAnimation.java From SUtil with Artistic License 2.0

5 votes

@Override
protected void applyTransformation(float interpolatedTime, Transformation t) {
    final float fromDegrees = mFromDegrees;
    // 生成中间角度
    float degrees = fromDegrees + ((mToDegrees - fromDegrees) * interpolatedTime);


    final float centerX = mCenterX;
    final float centerY = mCenterY;
    final Camera camera = mCamera;

    final Matrix matrix = t.getMatrix();

    camera.save();
    if (mReverse) {
        camera.translate(0.0f, 0.0f, mDepthZ * interpolatedTime);
    } else {
        camera.translate(0.0f, 0.0f, mDepthZ * (1.0f - interpolatedTime));
    }
    camera.rotateY(degrees);
    // 取得变换后的矩阵
    camera.getMatrix(matrix);
    camera.restore();
    float[] mValues = {0, 0, 0, 0, 0, 0, 0, 0, 0};
    matrix.getValues(mValues);            //获取数值
    mValues[6] = mValues[6] / scale;      //数值修正
    matrix.setValues(mValues);            //重新赋值

    matrix.preTranslate(-centerX, -centerY);
    matrix.postTranslate(centerX, centerY);
}

Source File: AnimatorProxy.java From imsdk-android with MIT License

5 votes

private void transformMatrix(Matrix m, View view) {
    final float w = view.getWidth();
    final float h = view.getHeight();
    final boolean hasPivot = mHasPivot;
    final float pX = hasPivot ? mPivotX : w / 2f;
    final float pY = hasPivot ? mPivotY : h / 2f;

    final float rX = mRotationX;
    final float rY = mRotationY;
    final float rZ = mRotationZ;
    if ((rX != 0) || (rY != 0) || (rZ != 0)) {
        final Camera camera = mCamera;
        camera.save();
        camera.rotateX(rX);
        camera.rotateY(rY);
        camera.rotateZ(-rZ);
        camera.getMatrix(m);
        camera.restore();
        m.preTranslate(-pX, -pY);
        m.postTranslate(pX, pY);
    }

    final float sX = mScaleX;
    final float sY = mScaleY;
    if ((sX != 1.0f) || (sY != 1.0f)) {
        m.postScale(sX, sY);
        final float sPX = -(pX / w) * ((sX * w) - w);
        final float sPY = -(pY / h) * ((sY * h) - h);
        m.postTranslate(sPX, sPY);
    }

    m.postTranslate(mTranslationX, mTranslationY);
}

Source File: Rotate3dAnimation.java From CloudPan with Apache License 2.0

5 votes

@Override
protected void applyTransformation(float interpolatedTime, Transformation t) {
    final float fromDegrees = mFromDegrees;
    float degrees = fromDegrees + ((mToDegrees - fromDegrees) * interpolatedTime);

    final float centerX = mCenterX;
    final float centerY = mCenterY;
    final Camera camera = mCamera;

    final Matrix matrix = t.getMatrix();

    camera.save();
    if (mReverse) {
        camera.translate(0.0f, 0.0f, mDepthZ * interpolatedTime);
    } else {
        camera.translate(0.0f, 0.0f, mDepthZ * (1.0f - interpolatedTime));
    }

    if (mRotateType == TYPEX) {
        camera.rotateX(degrees);
    } else if (mRotateType == TYPEY) {
        camera.rotateY(degrees);
    } else if (mRotateType == TYPEZ) {
        camera.rotateZ(degrees);
    }
    camera.getMatrix(matrix);
    camera.restore();

    matrix.preTranslate(-centerX, -centerY);
    matrix.postTranslate(centerX, centerY);
}

Source File: UEAnimatorProxy.java From Auie with GNU General Public License v2.0

5 votes

private void transformMatrix(Matrix m, View view) {
    final float w = view.getWidth();
    final float h = view.getHeight();
    final boolean hasPivot = mHasPivot;
    final float pX = hasPivot ? mPivotX : w / 2f;
    final float pY = hasPivot ? mPivotY : h / 2f;

    final float rX = mRotationX;
    final float rY = mRotationY;
    final float rZ = mRotationZ;
    if ((rX != 0) || (rY != 0) || (rZ != 0)) {
        final Camera camera = mCamera;
        camera.save();
        camera.rotateX(rX);
        camera.rotateY(rY);
        camera.rotateZ(-rZ);
        camera.getMatrix(m);
        camera.restore();
        m.preTranslate(-pX, -pY);
        m.postTranslate(pX, pY);
    }

    final float sX = mScaleX;
    final float sY = mScaleY;
    if ((sX != 1.0f) || (sY != 1.0f)) {
        m.postScale(sX, sY);
        final float sPX = -(pX / w) * ((sX * w) - w);
        final float sPY = -(pY / h) * ((sY * h) - h);
        m.postTranslate(sPX, sPY);
    }

    m.postTranslate(mTranslationX, mTranslationY);
}

Source File: Rotate3dAnimation.java From Rotate3dAnimation with Eclipse Public License 1.0

4 votes

@Override
	protected void applyTransformation(float interpolatedTime, Transformation t) {
		final float fromDegrees = mFromDegrees;
		// 生成中间角度
		float degrees = fromDegrees + ((mToDegrees - fromDegrees) * interpolatedTime);

		
		final float centerX = mCenterX;
		final float centerY = mCenterY;
		final Camera camera = mCamera;

		final Matrix matrix = t.getMatrix();

		camera.save();
		if (mReverse) {
			camera.translate(0.0f, 0.0f, mDepthZ * interpolatedTime);
		} else {
			camera.translate(0.0f, 0.0f, mDepthZ * (1.0f - interpolatedTime));
		}
		camera.rotateY(degrees);
		// 取得变换后的矩阵
		camera.getMatrix(matrix);
		camera.restore();

//----------------------------------------------------------------------------
		/** 
		 * 修复打脸问题		(￣ε(#￣)☆╰╮(￣▽￣///)
		 * 简要介绍：
		 * 原来的3D翻转会由于屏幕像素密度问题而出现效果相差很大
		 * 例如在屏幕像素比为1,5的手机上显示效果基本正常，
		 * 而在像素比3,0的手机上面感觉翻转感觉要超出屏幕边缘，
		 * 有种迎面打脸的感觉、
		 * 
		 * 解决方案
		 * 利用屏幕像素密度对变换矩阵进行校正，
		 * 保证了在所有清晰度的手机上显示的效果基本相同。
		 *  
		 */
		float[] mValues = {0,0,0,0,0,0,0,0,0};
		matrix.getValues(mValues);			//获取数值
		mValues[6] = mValues[6]/scale;			//数值修正
		matrix.setValues(mValues);			//重新赋值
		
//		Log.e("TAG", "mValues["+0+"]="+mValues[0]+"------------\t"+"mValues["+6+"]="+mValues[6]);
//----------------------------------------------------------------------------

		matrix.preTranslate(-centerX, -centerY);
		matrix.postTranslate(centerX, centerY);
	}

Source File: HorizontalCarouselLayout.java From CustomViewSets with Apache License 2.0

4 votes

protected boolean getChildStaticTransformation(View child, Transformation t) {
    Camera camera = new Camera();
    int leftCenterView = this.mWidthCenter - this.mChildrenWidthMiddle;
    float offset = (-child.getLeft() + leftCenterView) /
            this.mSpaceBetweenViews;
    if (offset != 0.0F) {
        float absOffset = Math.abs(offset);
        float scale = (float) Math.pow(0.8999999761581421D, absOffset);
        t.clear();
        t.setTransformationType(Transformation.TYPE_MATRIX);
        t.setAlpha(this.mSetInactiveViewTransparency);
        Matrix m = t.getMatrix();
        m.setScale(scale, scale);
        if (this.mTranslatateEnbabled) {
            m.setTranslate(0.0F, this.mTranslate * absOffset);
        }
        if (offset > 0.0F) {
            camera.save();
            camera.translate(0.0F, 0.0F, this.mViewZoomOutFactor * offset);
            camera.rotateY(this.mCoverflowRotation);
            camera.getMatrix(m);
            camera.restore();
            m.preTranslate(-this.mChildrenWidthMiddle, -this.mChildrenHeight);
            m.postTranslate(this.mChildrenWidthMiddle, this.mChildrenHeight);
        } else {
            camera.save();
            camera.translate(0.0F, 0.0F, -(this.mViewZoomOutFactor * offset));
            camera.rotateY(-this.mCoverflowRotation);
            camera.getMatrix(m);
            camera.restore();
            m.preTranslate(-this.mChildrenWidthMiddle, -this.mChildrenHeight);
            m.postTranslate(this.mChildrenWidthMiddle, this.mChildrenHeight);
        }
        this.mMatrix.reset();
        if (this.mRotationEnabled) {
            this.mMatrix.setRotate(this.mRotation * offset);
        }
        this.mMatrix.preTranslate(-this.mChildrenWidthMiddle, -this.mChildrenHeightMiddle);
        this.mMatrix.postTranslate(this.mChildrenWidthMiddle, this.mChildrenHeightMiddle);
        m.setConcat(m, this.mMatrix);
    }
    return true;
}

Source File: RotationDrawStrategy.java From FancyView with Apache License 2.0

4 votes

/**
 * 根据角度绘制图标的类
 * @param canvas 画布
 * @param degree 角度
 * @param icon 图标
 * @param width view宽度
 * @param height view高度
 */
private void drawIconTwo(Canvas canvas, int degree, Bitmap icon, int width, int height) {
    Camera camera = new Camera();
    Paint paint = new Paint(Paint.ANTI_ALIAS_FLAG);
    int centerX = width / 2;
    int centerY = height / 2 - 200;
    int x = centerX - icon.getWidth()/2;
    int y = centerY - icon.getHeight()/2;
    Matrix matrix = new Matrix();
    matrix.postScale(1.7f, 1.7f, centerX, centerY);

    //绘制左半部分
    canvas.save();
    canvas.concat(matrix);
    canvas.clipRect(x, y, x + icon.getWidth() / 2, y + icon.getHeight() / 2);
    canvas.translate(centerX, centerY);
    camera.save();
    camera.rotateX(180);
    camera.applyToCanvas(canvas);
    camera.restore();
    canvas.translate(-centerX, -centerY);
    canvas.drawBitmap(icon, x, y, paint);
    canvas.restore();

    //绘制右半部分
    canvas.save();
    canvas.concat(matrix);
    if (degree <= 90)
        canvas.clipRect(x , y , x + icon.getWidth() / 2, y + icon.getHeight() / 2);
    else
        canvas.clipRect(x + icon.getWidth() / 2, y, x + icon.getWidth(), y + icon.getHeight() / 2);
    canvas.translate(centerX, centerY);
    camera.save();
    camera.rotateX(180);
    camera.rotateY(180 - degree);
    camera.applyToCanvas(canvas);
    camera.restore();
    canvas.translate(-centerX, -centerY);
    canvas.drawBitmap(icon, x, y, paint);
    canvas.restore();
}

Source File: Rotate3dAnimation.java From Rotate3dAnimation with Eclipse Public License 1.0

4 votes

@Override
	protected void applyTransformation(float interpolatedTime, Transformation t) {
		final float fromDegrees = mFromDegrees;
		// 生成中间角度
		float degrees = fromDegrees + ((mToDegrees - fromDegrees) * interpolatedTime);

		
		final float centerX = mCenterX;
		final float centerY = mCenterY;
		final Camera camera = mCamera;

		final Matrix matrix = t.getMatrix();

		camera.save();
		if (mReverse) {
			camera.translate(0.0f, 0.0f, mDepthZ * interpolatedTime);
		} else {
			camera.translate(0.0f, 0.0f, mDepthZ * (1.0f - interpolatedTime));
		}
		camera.rotateY(degrees);
		// 取得变换后的矩阵
		camera.getMatrix(matrix);
		camera.restore();

//----------------------------------------------------------------------------
		/** 
		 * 修复打脸问题		(￣ε(#￣)☆╰╮(￣▽￣///)
		 * 简要介绍：
		 * 原来的3D翻转会由于屏幕像素密度问题而出现效果相差很大
		 * 例如在屏幕像素比为1,5的手机上显示效果基本正常，
		 * 而在像素比3,0的手机上面感觉翻转感觉要超出屏幕边缘，
		 * 有种迎面打脸的感觉、
		 * 
		 * 解决方案
		 * 利用屏幕像素密度对变换矩阵进行校正，
		 * 保证了在所有清晰度的手机上显示的效果基本相同。
		 *  
		 */
		float[] mValues = {0,0,0,0,0,0,0,0,0};
		matrix.getValues(mValues);			//获取数值
		mValues[6] = mValues[6]/scale;		//数值修正
		matrix.setValues(mValues);			//重新赋值
		
//		Log.e("TAG", "mValues["+0+"]="+mValues[0]+"------------\t"+"mValues["+6+"]="+mValues[6]);
//----------------------------------------------------------------------------

		matrix.preTranslate(-centerX, -centerY);
		matrix.postTranslate(centerX, centerY);
	}

Java Code Examples for android.graphics.Camera#save()