我的片段中有很少的自定义六边形视图,并且在六角形视图上双击时,它会打开2个Activties.我已经尝试了几种方法来避免这种行为,但它似乎都没有效果.不确定为什么以下事情不起作用.
我已经尝试过这篇文章Android Preventing Double Click On A Button中的所有内容,但在我的案例中都没有.我不确定在这个具体案例中有什么奇怪之处.
我尝试过的第一件事就是将Activties启动模式设置为“singleTop”.那没用.所以我尝试了其他如singleInstance,singleTask.
然后我尝试禁用单击六边形的视图并在onResume中启用它.
即便这样也行不通.单击时尝试保存最后一次单击时间.即便这样也行不通.
这是片段中的代码.
public class MenuFragment extends BaseFragment implements
OnHexagonClickListener{
....
@Override
public View onCreateView(@NonNull LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.fragment_land_menu, container, false);
ScrollView scroll_hexagon = view.findViewById(R.id.scroll_hexagon);
isFirst = true;
loadMenuData();
scroll_hexagon.post(new Runnable() {
@Override
public void run() {
int design_hexagon_width = getResources().getDimensionPixelSize(R.dimen.dimen_190dp);
int design_hexagon_height = getResources().getDimensionPixelSize(R.dimen.dimen_160dp);
int design_padding_horizontal = getResources().getDimensionPixelSize(R.dimen.dimen_5dp);
int design_margin_horizontal = getResources().getDimensionPixelSize(R.dimen.dimen_3dp);
int design_margin_vertical = getResources().getDimensionPixelSize(R.dimen.dimen_5dp);
int design_margin_top = 0; //getResources().getDimensionPixelSize(R.dimen.dimen_5dp);
int scroll_width = scroll_hexagon.getWidth();
int hexagon_width = (int) (((scroll_width - design_padding_horizontal * 2) * 1.105f - design_margin_horizontal) / 2);
int hexagon_margin_horizontal = hexagon_width - (int) ((scroll_width - design_padding_horizontal * 2) * 0.105f) + design_margin_horizontal;
float scale = (float) hexagon_width / (float) design_hexagon_width;
int hexagon_margin_vertical = ((int) (design_hexagon_height * scale) + design_margin_vertical) / 2;
RelativeLayout hexagon_layout = view.findViewById(R.id.lyt_hexagon);
for (int index = 0; index < mHexagonList.size(); index++) {
Hexagon hexagon = mHexagonList.get(index);
HexagonView hexagon_view = new HexagonView(activity, hexagon_width, hexagon_width);
hexagon_view.setId(index);
RelativeLayout.LayoutParams layoutparams = new RelativeLayout.LayoutParams(RelativeLayout.LayoutParams.WRAP_CONTENT, RelativeLayout.LayoutParams.WRAP_CONTENT);
layoutparams.topMargin = design_margin_top + hexagon_margin_vertical * hexagon.getRowIndex();
layoutparams.leftMargin = design_padding_horizontal + hexagon_margin_horizontal * hexagon.getColIndex();
hexagon_view.setLayoutParams(layoutparams);
hexagon_view.setData(hexagon.getType());
hexagon_view.setOnHexagonClickListener(MenuFragment.this);
hexagon_layout.addView(hexagon_view);
}
hexagon_layout.requestLayout();
}
});
return view;
}
@Override
public void onClickHexagon(View view) {
Hexagon hexagon = mHexagonList.get(view.getId());
switch (hexagon.getType()) {
case HexagonType.HEXAGON_PROFILE:
startActivity(new Intent(activity, DashBoard.class));
getActivity().overridePendingTransition(R.anim.anim_left_to_right, R.anim.anim_scale_out);
break;
....
}
我的自定义视图的代码：
public class HexagonView extends View implements Animation.AnimationListener {
private Paint mPaintBrush, mPaintText;
private LassoUtils mLassoUtils = null;
private List<PointF> mPointList = null;
private int mType;
private int mWidth, mHeight;
private int mWidthSpec, mHeightSpec;
private int mBackWidthSpec, mBackHeightSpec;
private int mThumbWidthSpec, mThumbHeightSpec, mThumbMarginSpec;
private int mIconWidthSpec, mIconHeightSpec, mIconMarginSpec;
private int mTextSize, mTextMarginSpec;
private String mText = "";
private Resources mResource;
private Bitmap mBackgroundBitmap = null;
private Bitmap mThumbBitmap = null;
private Bitmap mIconBitmap = null;
private OnHexagonClickListener mListener = null;
private Animation mAnim = null;
private boolean islasso = false;
private boolean isAnimating = false;
public HexagonView(Context context) {
this(context, null);
}
public HexagonView(Context context, AttributeSet attr) {
super(context, attr);
}
public HexagonView(Context context, int width, int height) {
super(context, null);
mType = HexagonType.HEXAGON_NONE;
mResource = context.getResources();
mWidthSpec = width;
mHeightSpec = height;
float scale = (float) width / (float) mResource.getDimensionPixelSize(R.dimen.dimen_190dp);
mBackWidthSpec = (int) (mResource.getDimensionPixelSize(R.dimen.dimen_190dp) * scale);
mBackHeightSpec = (int) (mResource.getDimensionPixelSize(R.dimen.dimen_160dp) * scale);
mThumbWidthSpec = (int) (mResource.getDimensionPixelSize(R.dimen.dimen_185dp) * scale);
mThumbHeightSpec = (int) (mResource.getDimensionPixelSize(R.dimen.dimen_171dp) * scale);
mThumbMarginSpec = (int) (mResource.getDimensionPixelSize(R.dimen.dimen_10dp) * scale);
mThumbMarginSpec = 0;
mTextSize = (int) (mResource.getDimensionPixelSize(R.dimen.dimen_12sp) * scale);
mTextMarginSpec = (int) (mResource.getDimensionPixelSize(R.dimen.dimen_38dp) * scale);
mIconWidthSpec = (int) (mResource.getDimensionPixelSize(R.dimen.dimen_46dp) * scale);
mIconHeightSpec = (int) (mResource.getDimensionPixelSize(R.dimen.dimen_44dp) * scale);
mIconMarginSpec = (int) (mResource.getDimensionPixelSize(R.dimen.dimen_3dp) * scale);
int backColor = mResource.getColor(R.color.transparent);
int textColor = mResource.getColor(R.color.color_text_white);
mBackgroundBitmap = getBitmap(mResource.getDrawable(R.drawable.ic_wk_hexagon_bg), mBackWidthSpec, mBackHeightSpec);
mPaintBrush = new Paint();
mPaintBrush.setAntiAlias(true);
mPaintBrush.setStyle(Paint.Style.FILL);
mPaintBrush.setColor(backColor);
mPaintText = new Paint();
mPaintText.setAntiAlias(true);
mPaintText.setTextSize(mTextSize);
mPaintText.setStyle(Paint.Style.FILL);
mPaintText.setTextAlign(Paint.Align.CENTER);
mPaintText.setColor(textColor);
mAnim = AnimationUtils.loadAnimation(context, R.anim.hexagon_click);
mAnim.setAnimationListener(this);
}
@Override
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
setMeasuredDimension(MeasureSpec.getSize(mWidthSpec), MeasureSpec.getSize(mHeightSpec));
}
@Override
protected void onSizeChanged(int w, int h, int oldw, int oldh) {
mWidth = w;
mHeight = h;
}
@SuppressLint("DrawAllocation")
@Override
protected void onDraw(Canvas canvas) {
if (mWidth == 0 || mHeight == 0)
return;
int lenght = mWidth / 2;
double randian30 = 30 * Math.PI / 180;
float a = (float) (lenght * Math.sin(randian30));
float b = (float) (lenght * Math.cos(randian30));
float c = (mHeight - 2 * b) / 2;
Path path = new Path();
path.moveTo(mWidth, mHeight / 2);
path.lineTo(mWidth - a, mHeight - c);
path.lineTo(mWidth - a - lenght, mHeight - c);
path.lineTo(0, mHeight / 2);
path.lineTo(a, c);
path.lineTo(mWidth - a, c);
path.close();
canvas.drawPath(path, mPaintBrush);
if (mBackgroundBitmap != null)
canvas.drawBitmap(mBackgroundBitmap, (float) (mWidth / 2 - mBackWidthSpec / 2), (float) (mHeight / 2 - mBackHeightSpec / 2), null);
if (mThumbBitmap != null)
canvas.drawBitmap(mThumbBitmap, (float) (mWidth / 2 - mThumbWidthSpec / 2), (float) (mHeight / 2 - mThumbHeightSpec / 2 + mThumbMarginSpec), null);
if (mIconBitmap != null)
canvas.drawBitmap(mIconBitmap, (float) (mWidth / 2 - mIconWidthSpec / 2), (float) (mHeight / 2 - mIconHeightSpec + mIconMarginSpec), null);
if (!mText.isEmpty())
canvas.drawText(mText, (float) (mWidth / 2), (float) (mHeight / 2 + mTextSize + mTextMarginSpec), mPaintText);
if (mPointList == null)
mPointList = new ArrayList<>();
else
mPointList.clear();
PointF pf = new PointF();
pf.set(mWidth, mHeight / 2);
mPointList.add(pf);
PointF pf1 = new PointF();
pf1.set(mWidth - a, mHeight - c);
mPointList.add(pf1);
PointF pf2 = new PointF();
pf2.set(mWidth - a - lenght, mHeight - c);
mPointList.add(pf2);
PointF pf3 = new PointF();
pf3.set(0, mHeight / 2);
mPointList.add(pf3);
PointF pf4 = new PointF();
pf4.set(a, c);
mPointList.add(pf4);
PointF pf5 = new PointF();
pf5.set(mWidth - a, c);
mPointList.add(pf5);
if (mLassoUtils == null)
mLassoUtils = new LassoUtils();
mLassoUtils.setLassoList(mPointList);
}
@SuppressLint("ClickableViewAccessibility")
@Override
public boolean onTouchEvent(MotionEvent event) {
switch (event.getAction()) {
case MotionEvent.ACTION_DOWN:
islasso = mLassoUtils.contains(event.getX(), event.getY());
break;
case MotionEvent.ACTION_MOVE:
islasso = mLassoUtils.contains(event.getX(), event.getY());
break;
case MotionEvent.ACTION_UP:
if (isAnimating)
break;
if (mType == HexagonType.HEXAGON_NONE)
break;
this.startAnimation(mAnim);
break;
}
return true;
}
@Override
public void onAnimationStart(Animation animation) {
isAnimating = true;
}
@Override
public void onAnimationEnd(Animation animation) {
if (islasso) {
if (mListener != null)
mListener.onClickHexagon(this);
}
islasso = false;
isAnimating = false;
}
@Override
public void onAnimationRepeat(Animation animation) {
}
public void setData(int type) {
mType = type;
Drawable originThumbDrawable = null;
Drawable originIconDrawable = null;
switch (type) {
case HexagonType.HEXAGON_PROFILE:
originThumbDrawable = mResource.getDrawable(R.mipmap.land_hexagon_profile);
originIconDrawable = mResource.getDrawable(R.mipmap.land_icon_profile);
mText = mResource.getString(R.string.landing_profile);
break;
case HexagonType.HEXAGON_LEARNING:
originThumbDrawable = mResource.getDrawable(R.mipmap.land_hexagon_learning);
originIconDrawable = mResource.getDrawable(R.mipmap.land_icon_learning);
mText = mResource.getString(R.string.landing_learning);
break;
}
if (originThumbDrawable != null)
mThumbBitmap = getBitmap(originThumbDrawable, mThumbWidthSpec, mThumbHeightSpec);
if (originIconDrawable != null)
mIconBitmap = getBitmap(originIconDrawable, mIconWidthSpec, mIconHeightSpec);
}
public void setOnHexagonClickListener(OnHexagonClickListener listener) {
this.mListener = listener;
}
private Bitmap getBitmap(Drawable drawable, int width, int height) {
Canvas canvas = new Canvas();
Bitmap bitmap = Bitmap.createBitmap(drawable.getIntrinsicWidth(), drawable.getIntrinsicHeight(), Bitmap.Config.ARGB_8888);
canvas.setBitmap(bitmap);
drawable.setBounds(0, 0, drawable.getIntrinsicWidth(), drawable.getIntrinsicHeight());
drawable.draw(canvas);
return Bitmap.createScaledBitmap(bitmap, width, height, false);
}
}
解决方法:
public boolean clickable = true;
@Override
public void onAnimationEnd(Animation animation) {
if (islasso) {
if (mListener != null && clickable) {
clickable = false;
mListener.onClickHexagon(this);
new Handler().postDelayed(new Runnable() {
@Override
public void run() {
clickable = true;
}
}, 1500);
}
}
islasso = false;
isAnimating = false;
}
试试这个