我举了一个例子并根据我的要求对其进行了修改。这是页面卷曲的例子。触摸它工作正常。但现在我希望它能够处理按钮点击，同样意味着屏幕触摸和按钮点击会产生相同的卷曲效果。
我有一个PageCurlView.java类，它是独立的类。我试图在我的主类SecondActivity.java中创建静态内部类，这样我就可以使用内部类的功能在外部类的按钮上执行click事件。但这里再没有运气。
我正在粘贴我的代码。请帮我配合这两件事。 谢谢!!
SecondActivity.java
package com.pg.spirituallawsthataffectourlife;
public class SecondActivity extends Activity {
private InterstitialAd mInterstitialAd;
private Button _mute_Btn, _back_Btn, _frwrd_Btn;
public PageCurlView _view;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
//Remove title bar
requestWindowFeature(Window.FEATURE_NO_TITLE);
setContentView(R.layout.second);
_mute_Btn = (Button) findViewById(R.id.sound_btn);
_mute_Btn.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
Constants.isMute = !Constants.isMute;
if(Constants.isMute){
_mute_Btn.setBackgroundResource(R.drawable.mute);
}else{
_mute_Btn.setBackgroundResource(R.drawable.unmute);
}
}
});
_back_Btn = (Button) findViewById(R.id.left_arrow_btn);
_back_Btn.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
}
});
_frwrd_Btn = (Button) findViewById(R.id.right_arrow_btn);
_frwrd_Btn.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
}
});
//_view = new PageCurlView(this);
//_view.init(this);
AdView mAdView = (AdView) findViewById(R.id.adView);
AdRequest adRequest = new AdRequest.Builder().build();
mAdView.loadAd(adRequest);
}
private void requestNewInterstitial() {
AdRequest adRequest = new AdRequest.Builder()
//.addTestDevice("B2696BE76A1396E0A24920EFAD192319")
.build();
mInterstitialAd.loadAd(adRequest);
}
@Override
public void onDestroy(){
super.onDestroy();
System.gc();
finish();
}
public void lockOrientationLandscape() {
lockOrientation(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE);
}
public void lockOrientationPortrait() {
lockOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT);
}
public void lockOrientation( int orientation ) {
setRequestedOrientation(orientation);
}
}
Second.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
xmlns:ads="http://schemas.android.com/apk/res-auto"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >
<LinearLayout
android:id="@+id/ad_layout"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:orientation="horizontal" >
<com.google.android.gms.ads.AdView
android:id="@+id/adView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="left"
ads:adSize="BANNER"
ads:adUnitId="@string/banner_ad_test_unit_id" >
</com.google.android.gms.ads.AdView>
<Button
android:id="@+id/sound_btn"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="right"
android:background="@drawable/unmute" />
</LinearLayout>
<LinearLayout
android:id="@+id/bottom_layout"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:background="@color/black"
android:orientation="vertical" >
<com.pg.spirituallawsthataffectourlife.PageCurlView
android:id="@+id/dcgpagecurlPageCurlView1"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:background="@drawable/page1" />
<LinearLayout
android:id="@+id/btn_layout"
android:layout_width="fill_parent"
android:layout_height="90dp"
android:background="@color/black"
android:orientation="horizontal" >
<Button
android:id="@+id/left_arrow_btn"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="@drawable/backk" />
<Button
android:id="@+id/right_arrow_btn"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="@drawable/nextt" />
</LinearLayout>
</LinearLayout>
</LinearLayout>
PageCurlView.java
公共类PageCurlView扩展了View {
private final static String TAG = "PageCurlView";
public final int CURLMODE_SIMPLE = 0;
public final int CURLMODE_DYNAMIC = 1;
private class Vector2D
{
public float x,y;
public Vector2D(float x, float y)
{
this.x = x;
this.y = y;
}
@Override
public String toString() {
return "("+this.x+","+this.y+")";
}
public float length() {
return (float) Math.sqrt(x * x + y * y);
}
public float lengthSquared() {
return (x * x) + (y * y);
}
public boolean equals(Object o) {
if (o instanceof Vector2D) {
Vector2D p = (Vector2D) o;
return p.x == x && p.y == y;
}
return false;
}
public Vector2D reverse() {
return new Vector2D(-x,-y);
}
public Vector2D sum(Vector2D b) {
return new Vector2D(x+b.x,y+b.y);
}
public Vector2D sub(Vector2D b) {
return new Vector2D(x-b.x,y-b.y);
}
public float dot(Vector2D vec) {
return (x * vec.x) + (y * vec.y);
}
public float cross(Vector2D a, Vector2D b) {
return a.cross(b);
}
public float cross(Vector2D vec) {
return x * vec.y - y * vec.x;
}
public float distanceSquared(Vector2D other) {
float dx = other.x - x;
float dy = other.y - y;
return (dx * dx) + (dy * dy);
}
public float distance(Vector2D other) {
return (float) Math.sqrt(distanceSquared(other));
}
public float dotProduct(Vector2D other) {
return other.x * x + other.y * y;
}
public Vector2D normalize() {
float magnitude = (float) Math.sqrt(dotProduct(this));
return new Vector2D(x / magnitude, y / magnitude);
}
public Vector2D mult(float scalar) {
return new Vector2D(x*scalar,y*scalar);
}
}
class FlipAnimationHandler extends Handler {
@Override
public void handleMessage(Message msg) {
FlipAnimationStep();
}
public void sleep(long millis) {
this.removeMessages(0);
sendMessageDelayed(obtainMessage(0), millis);
}
}
public PageCurlView(Context context) {
super(context);
this._cContext = context;
init(context);
ResetClipEdge();
}
public PageCurlView(Context context, AttributeSet attrs) {
super(context, attrs);
this._cContext = context;
init(context);
{
TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.PageCurlView);
// Get data
bEnableDebugMode = a.getBoolean(R.styleable.PageCurlView_enableDebugMode, bEnableDebugMode);
mCurlSpeed = a.getInt(R.styleable.PageCurlView_curlSpeed, mCurlSpeed);
mUpdateRate = a.getInt(R.styleable.PageCurlView_updateRate, mUpdateRate);
mInitialEdgeOffset = a.getInt(R.styleable.PageCurlView_initialEdgeOffset, mInitialEdgeOffset);
mCurlMode = a.getInt(R.styleable.PageCurlView_curlMode, mCurlMode);
mCurlSpeed+=30;
mUpdateRate+=30;
a.recycle();
}
ResetClipEdge();
}
private final void init(Context context) {
// Foreground text paint
mTextPaint = new Paint();
mTextPaint.setAntiAlias(true);
mTextPaint.setTextSize(16);
mTextPaint.setColor(Color.BLACK);//(0xFF000000);
// The shadow
mTextPaintShadow = new TextPaint();
mTextPaintShadow.setAntiAlias(true);
mTextPaintShadow.setTextSize(16);
mTextPaintShadow.setColor(0x00000000);
// Cache the context
mContext = new WeakReference<Context>(context);
// Base padding
setPadding(3, 3, 3, 3);
int width = Resources.getSystem().getDisplayMetrics().widthPixels;
int height =Resources.getSystem().getDisplayMetrics().heightPixels;
height-=140;
setMeasuredDimension(width, height);
// The focus flags are needed
setFocusable(true);
setFocusableInTouchMode(true);
mMovement = new Vector2D(0,0);
mFinger = new Vector2D(0,0);
mOldMovement = new Vector2D(0,0);
// Create our curl animation handler
mAnimationHandler = new FlipAnimationHandler();
// Create our edge paint
mCurlEdgePaint = new Paint();
mCurlEdgePaint.setColor(Color.GRAY);
mCurlEdgePaint.setAntiAlias(true);
mCurlEdgePaint.setStyle(Paint.Style.FILL);
mCurlEdgePaint.setShadowLayer(10, -5, 5, 0x99000000);
// Set the default props, those come from an XML :D
mCurlSpeed = 30;
mUpdateRate = 33;
mInitialEdgeOffset = 20;
mCurlMode = 1;
mPages = new ArrayList<Bitmap>();
mPages.add(BitmapFactory.decodeResource(getResources(), R.drawable.splash));
mPages.add(BitmapFactory.decodeResource(getResources(), R.drawable.pic_1));
mPages.add(BitmapFactory.decodeResource(getResources(), R.drawable.pic_2));
mPages.add(BitmapFactory.decodeResource(getResources(), R.drawable.pic_3));
// Create some sample images
mForeground = mPages.get(0);
mBackground = mPages.get(1);
invalidate();
}
public void ResetClipEdge()
{
mMovement.x = mInitialEdgeOffset;
mMovement.y = mInitialEdgeOffset;
mOldMovement.x = 0;
mOldMovement.y = 0;
mA = new Vector2D(mInitialEdgeOffset, 0);
mB = new Vector2D(this.getWidth(), this.getHeight());
mC = new Vector2D(this.getWidth(), 0);
mD = new Vector2D(0, 0);
mE = new Vector2D(0, 0);
mF = new Vector2D(0, 0);
mOldF = new Vector2D(0, 0);
// The movement origin point
mOrigin = new Vector2D(this.getWidth(), 0);
invalidate();
}
private Context GetContext() {
return mContext.get();
}
public boolean IsCurlModeDynamic()
{
return mCurlMode == CURLMODE_DYNAMIC;
}
public void SetCurlSpeed(int curlSpeed)
{
if ( curlSpeed < 1 )
throw new IllegalArgumentException("curlSpeed must be greated than 0");
mCurlSpeed = curlSpeed;
}
public int GetCurlSpeed()
{
return mCurlSpeed;
}
public void SetUpdateRate(int updateRate)
{
if ( updateRate < 1 )
throw new IllegalArgumentException("updateRate must be greated than 0");
mUpdateRate = updateRate;
}
public int GetUpdateRate()
{
return mUpdateRate;
}
public void SetInitialEdgeOffset(int initialEdgeOffset)
{
if ( initialEdgeOffset < 0 )
throw new IllegalArgumentException("initialEdgeOffset can not negative");
mInitialEdgeOffset = initialEdgeOffset;
}
public int GetInitialEdgeOffset(){
return mInitialEdgeOffset;
}
public void SetCurlMode(int curlMode)
{
if ( curlMode != CURLMODE_SIMPLE &&
curlMode != CURLMODE_DYNAMIC )
throw new IllegalArgumentException("Invalid curlMode");
mCurlMode = curlMode;
}
public int GetCurlMode()
{
return mCurlMode;
}
public void SetEnableDebugMode(boolean bFlag)
{
bEnableDebugMode = bFlag;
}
public boolean IsDebugModeEnabled()
{
return bEnableDebugMode;
}
@Override
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
int finalWidth, finalHeight;
finalWidth = measureWidth(widthMeasureSpec);
finalHeight = measureHeight(heightMeasureSpec);
finalHeight-=90;
setMeasuredDimension(finalWidth, finalHeight);
}
private int measureWidth(int measureSpec) {
int result = 0;
int specMode = MeasureSpec.getMode(measureSpec);
int specSize = MeasureSpec.getSize(measureSpec);
if (specMode == MeasureSpec.EXACTLY) {
result = specSize;
} else {
result = specSize;
}
return result;
}
private int measureHeight(int measureSpec) {
int result = 0;
int specMode = MeasureSpec.getMode(measureSpec);
int specSize = MeasureSpec.getSize(measureSpec);
if (specMode == MeasureSpec.EXACTLY) {
result = specSize;
} else {
result = specSize;
}
return result;
}
@Override
public boolean onTouchEvent(MotionEvent event) {
if (!bBlockTouchInput) {
mFinger.x = event.getX();
mFinger.y = event.getY();
int width = getWidth();
switch (event.getAction()) {
case MotionEvent.ACTION_DOWN:
mOldMovement.x = mFinger.x;
mOldMovement.y = mFinger.y;
if (mOldMovement.x > (width >> 1)) {
mMovement.x = mInitialEdgeOffset;
mMovement.y = mInitialEdgeOffset;
bFlipRight = true;
} else {
// Set the left movement flag
bFlipRight = false;
previousView();
mMovement.x = IsCurlModeDynamic()?width<<1:width;
mMovement.y = mInitialEdgeOffset;
}
break;
case MotionEvent.ACTION_UP:
bUserMoves=false;
bFlipping=true;
FlipAnimationStep();
break;
case MotionEvent.ACTION_MOVE:
bUserMoves=true;
mMovement.x -= mFinger.x - mOldMovement.x;
mMovement.y -= mFinger.y - mOldMovement.y;
mMovement = CapMovement(mMovement, true);
if ( mMovement.y <= 1 )
mMovement.y = 1;
if (mFinger.x < mOldMovement.x ) {
bFlipRight = true;
} else {
bFlipRight = false;
}
mOldMovement.x = mFinger.x;
mOldMovement.y = mFinger.y;
DoPageCurl();
this.invalidate();
break;
}
}
return true;
}
public void doIt(){
if (!bBlockTouchInput)
int width = getWidth();
switch (111) {
case 111:
mOldMovement.x = mFinger.x;
mOldMovement.y = mFinger.y;
// If we moved over the half of the display flip to next
if (mOldMovement.x > (width >> 1)) {
mMovement.x = mInitialEdgeOffset;
mMovement.y = mInitialEdgeOffset;
// Set the right movement flag
bFlipRight = true;
} else {
// Set the left movement flag
bFlipRight = false;
// go to next previous page
previousView();
// Set new movement
mMovement.x = IsCurlModeDynamic()?width<<1:width;
mMovement.y = mInitialEdgeOffset;
}
break;
case 222:
bUserMoves=false;
bFlipping=true;
FlipAnimationStep();
if(!Constants.isMute)
playMusic();//play sound
break;
case MotionEvent.ACTION_MOVE:
bUserMoves=true;
// Get movement
mMovement.x -= mFinger.x - mOldMovement.x;
mMovement.y -= mFinger.y - mOldMovement.y;
mMovement = CapMovement(mMovement, true);
// Make sure the y value get's locked at a nice level
if ( mMovement.y <= 1 )
mMovement.y = 1;
if (mFinger.x < mOldMovement.x ) {
bFlipRight = true;
} else {
bFlipRight = false;
}
mOldMovement.x = mFinger.x;
mOldMovement.y = mFinger.y;
DoPageCurl();
this.invalidate();
break;
}
}
}
private Vector2D CapMovement(Vector2D point, boolean bMaintainMoveDir)
{
if (point.distance(mOrigin) > mFlipRadius)
{
if ( bMaintainMoveDir )
{
point = mOrigin.sum(point.sub(mOrigin).normalize().mult(mFlipRadius));
}
else
{
// Change direction
if ( point.x > (mOrigin.x+mFlipRadius))
point.x = (mOrigin.x+mFlipRadius);
else if ( point.x < (mOrigin.x-mFlipRadius) )
point.x = (mOrigin.x-mFlipRadius);
point.y = (float) (Math.sin(Math.acos(Math.abs(point.x-mOrigin.x)/mFlipRadius))*mFlipRadius);
}
}
return point;
}
public void FlipAnimationStep() {
if ( !bFlipping )
return;
int width = getWidth();
bBlockTouchInput = true;
float curlSpeed = mCurlSpeed;
if ( !bFlipRight )
curlSpeed *= -1;
mMovement.x += curlSpeed;
mMovement = CapMovement(mMovement, false);
DoPageCurl();
if (mA.x < 1 || mA.x > width - 1) {
bFlipping = false;
if (bFlipRight) {
//SwapViews();
nextView();
}
ResetClipEdge();
DoPageCurl();
bEnableInputAfterDraw = true;
}
else
{
mAnimationHandler.sleep(mUpdateRate);
}
this.invalidate();
}
public void DoPageCurl()
{
if(bFlipping){
if ( IsCurlModeDynamic() )
doDynamicCurl();
else
doSimpleCurl();
} else {
if ( IsCurlModeDynamic() )
doDynamicCurl();
else
doSimpleCurl();
}
}
private void doSimpleCurl() {
int width = getWidth();
int height = getHeight();
// Calculate point A
mA.x = width - mMovement.x;
mA.y = height;
// Calculate point D
mD.x = 0;
mD.y = 0;
if (mA.x > width / 2) {
mD.x = width;
mD.y = height - (width - mA.x) * height / mA.x;
} else {
mD.x = 2 * mA.x;
mD.y = 0;
}
double angle = Math.atan((height - mD.y) / (mD.x + mMovement.x - width));
double _cos = Math.cos(2 * angle);
double _sin = Math.sin(2 * angle);
// And get F
mF.x = (float) (width - mMovement.x + _cos * mMovement.x);
mF.y = (float) (height - _sin * mMovement.x);
// If the x position of A is above half of the page we are still not
// folding the upper-right edge and so E and D are equal.
if (mA.x > width / 2) {
mE.x = mD.x;
mE.y = mD.y;
}
else
{
// So get E
mE.x = (float) (mD.x + _cos * (width - mD.x));
mE.y = (float) -(_sin * (width - mD.x));
}
}
private void doDynamicCurl() {
int width = getWidth();
int height = getHeight();
// F will follow the finger, we add a small displacement
// So that we can see the edge
mF.x = width - mMovement.x+0.1f;
mF.y = height - mMovement.y+0.1f;
// Set min points
if(mA.x==0) {
mF.x= Math.min(mF.x, mOldF.x);
mF.y= Math.max(mF.y, mOldF.y);
}
// Get diffs
float deltaX = width-mF.x;
float deltaY = height-mF.y;
float BH = (float) (Math.sqrt(deltaX * deltaX + deltaY * deltaY) / 2);
double tangAlpha = deltaY / deltaX;
double alpha = Math.atan(deltaY / deltaX);
double _cos = Math.cos(alpha);
double _sin = Math.sin(alpha);
mA.x = (float) (width - (BH / _cos));
mA.y = height;
mD.y = (float) (height - (BH / _sin));
mD.x = width;
mA.x = Math.max(0,mA.x);
if(mA.x==0) {
mOldF.x = mF.x;
mOldF.y = mF.y;
}
// Get W
mE.x = mD.x;
mE.y = mD.y;
// Correct
if (mD.y < 0) {
mD.x = width + (float) (tangAlpha * mD.y);
mE.y = 0;
mE.x = width + (float) (Math.tan(2 * alpha) * mD.y);
}
}
@Deprecated
private void SwapViews() {
Bitmap temp = mForeground;
mForeground = mBackground;
mBackground = temp;
}
private void nextView() {
int foreIndex = mIndex + 1;
if(foreIndex==5){
if(mInterstitialAd.isLoaded())
mInterstitialAd.show();
}
if(foreIndex >= mPages.size()) {
foreIndex = 0;
}
int backIndex = foreIndex + 1;
if(backIndex >= mPages.size()) {
backIndex = 0;
}
mIndex = foreIndex;
setViews(foreIndex, backIndex);
}
private void previousView() {
int backIndex = mIndex;
int foreIndex = backIndex - 1;
if(foreIndex < 0) {
foreIndex = mPages.size()-1;
}
mIndex = foreIndex;
setViews(foreIndex, backIndex);
}
private void setViews(int foreground, int background) {
mForeground = mPages.get(foreground);
mBackground = mPages.get(background);
}
@Override
protected void onDraw(Canvas canvas) {
// Always refresh offsets
mCurrentLeft = getLeft();
mCurrentTop = getTop();
if ( !bViewDrawn ) {
bViewDrawn = true;
onFirstDrawEvent(canvas);
}
canvas.drawColor(Color.WHITE);
Rect rect = new Rect();
rect.left = 0;
rect.top = 0;
rect.bottom = getHeight();
rect.right = getWidth();
// First Page render
Paint paint = new Paint();
// Draw our elements
drawForeground(canvas, rect, paint);
drawBackground(canvas, rect, paint);
drawCurlEdge(canvas);
// Draw any debug info once we are done
if ( bEnableDebugMode )
drawDebug(canvas);
// Check if we can re-enable input
if ( bEnableInputAfterDraw )
{
bBlockTouchInput = false;
bEnableInputAfterDraw = false;
}
}
protected void onFirstDrawEvent(Canvas canvas) {
mFlipRadius = getWidth();
ResetClipEdge();
DoPageCurl();
}
private void drawForeground( Canvas canvas, Rect rect, Paint paint ) {
canvas.drawBitmap(mForeground, null, rect, paint);
// Draw the page number (first page is 1 in real life :D
// there is no page number 0 hehe)
drawPageNum(canvas, mIndex);
}
private Path createBackgroundPath() {
Path path = new Path();
path.moveTo(mA.x, mA.y);
path.lineTo(mB.x, mB.y);
path.lineTo(mC.x, mC.y);
path.lineTo(mD.x, mD.y);
path.lineTo(mA.x, mA.y);
return path;
}
private void drawBackground( Canvas canvas, Rect rect, Paint paint ) {
Path mask = createBackgroundPath();
// Save current canvas so we do not mess it up
canvas.save();
canvas.clipPath(mask);
canvas.drawBitmap(mBackground, null, rect, paint);
// Draw the page number (first page is 1 in real life :D
// there is no page number 0 hehe)
drawPageNum(canvas, mIndex);
canvas.restore();
}
private Path createCurlEdgePath() {
Path path = new Path();
path.moveTo(mA.x, mA.y);
path.lineTo(mD.x, mD.y);
path.lineTo(mE.x, mE.y);
path.lineTo(mF.x, mF.y);
path.lineTo(mA.x, mA.y);
return path;
}
private void drawCurlEdge( Canvas canvas )
{
Path path = createCurlEdgePath();
canvas.drawPath(path, mCurlEdgePaint);
}
private void drawPageNum(Canvas canvas, int pageNum)
{
mTextPaint.setColor(Color.BLACK);
String pageNumText = "- "+pageNum+" -";
drawCentered(canvas, pageNumText,canvas.getHeight()-mTextPaint.getTextSize()-5,mTextPaint,mTextPaintShadow);
}
public void drawTextShadowed(Canvas canvas, String text, float x, float y, Paint textPain, Paint shadowPaint) {
canvas.drawText(text, x-1, y, shadowPaint);
canvas.drawText(text, x, y+1, shadowPaint);
canvas.drawText(text, x+1, y, shadowPaint);
canvas.drawText(text, x, y-1, shadowPaint);
canvas.drawText(text, x, y, textPain);
}
}*