android - android：如何在 SMS 上从网格和过去复制笑脸并用笑脸图像发送

Question

我正在尝试实现复制笑脸并在消息上显示

但是我该怎么做呢？

我的要求是我必须从我的应用程序中直接打开消息传递/电子邮件默认 android 屏幕，并在网格中显示所有图像和选择的图像附加短信/电子邮件并发送。

如何在 SMS 上从网格和过去复制笑脸并用笑脸图像发送。
如何从网格和过去的电子邮件中复制笑脸并用笑脸图像发送。
android gridview中是否可以分页？

score 0 · Accepted Answer

 - To Load Emoticon provide ArrayList(path of emoticons) to PagerAdpater



    private void loadEmoticons() {

            try {

                ViewPager pager = (ViewPager) findViewById(R.id.emoticons_pager);

                ArrayList<String> paths = new ArrayList<String>();
                if (fileList != null) {
                    for (int j = 0; j < fileList.length; j++) {
                        paths.add(fileList[j]);
                    }

                }

                EmoticonsPagerAdapter adapter = new EmoticonsPagerAdapter(
                        EmailEmoticonsActivity.this, paths, this);
                pager.setAdapter(adapter);

                mIndicator = (CirclePageIndicator) findViewById(R.id.indicator);
                mIndicator.setViewPager(pager);

            } catch (Exception e) {
                e.printStackTrace();
            }
        }

 1. select emoticon kkeyClickedIndex() it give selected emoticon Index.

       @Override
        public void keyClickedIndex(final int index, final String imagePath) {
            try {

                ImageGetter imageGetter = new ImageGetter() {

                    public Drawable getDrawable(String source) {
                        StringTokenizer st = new StringTokenizer(
                                String.valueOf(index), ".");
                        d = new BitmapDrawable(getResources(),
                                emoticons[Integer.parseInt(st.nextToken())]);
                        d.setBounds(0, 0, d.getIntrinsicWidth(),
                                d.getIntrinsicHeight());

                        return d;
                    }
                };

                Spanned cs = Html.fromHtml("<img src ='" + String.valueOf(index)
                        + "'/>", imageGetter, null);
                int cursorPosition = content.getSelectionStart();

                content.getText().insert(cursorPosition, cs);

            } catch (Exception e) {
                e.getMessage();
            }
        }



 - Grid Adapter : pass image paths (arrayList) base on load all images
   on Grid view, KeyClickListener  interface use to get index of
   click/selected image.



    public class EmoticonsGridAdapter extends BaseAdapter {

        private ArrayList<String> paths;
        private int pageNumber;
        Context mContext;
        String urlImages[];
        KeyClickListener mListener;

        public EmoticonsGridAdapter(Context context, ArrayList<String> paths,
                int pageNumber, KeyClickListener listener) {
            this.mContext = context;
            this.paths = paths;
            this.pageNumber = pageNumber;
            this.mListener = listener;
        }

        public View getView(final int position, View convertView, ViewGroup parent) {

            View v = convertView;
            if (v == null) {
                LayoutInflater inflater = (LayoutInflater) mContext
                        .getSystemService(Context.LAYOUT_INFLATER_SERVICE);
                v = inflater.inflate(R.layout.emoticons_item, null);
            }

            final String path = paths.get(position);

            ImageView image = (ImageView) v.findViewById(R.id.item);

            image.setImageBitmap(getImage(path));

            image.setOnClickListener(new OnClickListener() {

                @Override
                public void onClick(View v) {

                    mListener
                            .keyClickedIndex(
                                    (pageNumber * EmoticonsPagerAdapter.NO_OF_EMOTICONS_PER_PAGE)
                                            + position, path);
                }
            });
            return v;
        }

        @Override
        public int getCount() {
            return paths.size();
        }

        @Override
        public String getItem(int position) {
            return paths.get(position);
        }

        @Override
        public long getItemId(int position) {
            return position;
        }

        public int getPageNumber() {
            return pageNumber;
        }

        private Bitmap getImage(String path) {
            InputStream in = null;
            try {
            in = new FileInputStream(Constant.DIR + Constant.FILE_NAME
                        + File.separator + path);
            } catch (Exception e) {
                e.printStackTrace();
            }
            Bitmap temp = BitmapFactory.decodeStream(in, null, null);
            return temp;
        }
        public interface KeyClickListener {

        public void keyClickedIndex(int index, String imagePath);
            // public void keyClickedIndex(String indexImage);
        }
    }
 - Pager Emoticon

public class EmoticonsPagerAdapter extends PagerAdapter {

    ArrayList<String> emoticons;
    public static final int NO_OF_EMOTICONS_PER_PAGE = 24;
    FragmentActivity mActivity;
    KeyClickListener mListener;

    public EmoticonsPagerAdapter(FragmentActivity activity,
            ArrayList<String> emoticons, KeyClickListener listener) {
        this.emoticons = emoticons;
        this.mActivity = activity;
        this.mListener = listener;
    }

    @Override
    public int getCount() {
        int nubmer = (int) Math.ceil((double) emoticons.size()
                / (double) NO_OF_EMOTICONS_PER_PAGE);

        return nubmer;

    }

    @Override
    public Object instantiateItem(View collection, int position) {

        View layout = mActivity.getLayoutInflater().inflate(
                R.layout.emoticons_grid, null);

        int initialPosition = position * NO_OF_EMOTICONS_PER_PAGE;
        ArrayList<String> emoticonsInAPage = new ArrayList<String>();

        for (int i = initialPosition; i < initialPosition
                + NO_OF_EMOTICONS_PER_PAGE
                && i < emoticons.size(); i++) {
            emoticonsInAPage.add(emoticons.get(i));
        }

        GridView grid = (GridView) layout.findViewById(R.id.emoticons_grid);
        EmoticonsGridAdapter adapter = new EmoticonsGridAdapter(
                mActivity.getApplicationContext(), emoticonsInAPage, position,
                mListener);
        grid.setAdapter(adapter);

        ((ViewPager) collection).addView(layout);

        return layout;
    }

    @Override
    public void destroyItem(View collection, int position, Object view) {
        ((ViewPager) collection).removeView((View) view);
    }

    @Override
    public boolean isViewFromObject(View view, Object object) {
        return view == object;
    }
}

 - Girdview layout (emoticons_grid.xml) Gridview to load image in pager

    <GridView xmlns:android="http://schemas.android.com/apk/res/android"
        xmlns:tools="http://schemas.android.com/tools"
        android:id="@+id/emoticons_grid"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:horizontalSpacing="5dp"
        android:numColumns="6"
        android:verticalSpacing="8dp" />

 - item.xml signal item of gridview  

    <ImageView xmlns:android="http://schemas.android.com/apk/res/android"
        android:id="@+id/item"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:background="@color/White" />

 - MainLayout add this to ViewPagerand CirclePageIndicator 

 <com.viewpagerindicator.CirclePageIndicator
        android:id="@+id/indicator"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:background="@color/Gray"
        android:padding="10dip"
        android:paddingBottom="10dp"
        android:paddingTop="10dp"
        app:pageColor="#808080"
        app:radius="5dp"
        app:strokeColor="#000000"
        app:strokeWidth="2dp" />

    <android.support.v4.view.ViewPager
        android:id="@+id/emoticons_pager"
        android:layout_width="match_parent"
        android:layout_height="0dp"
        android:layout_weight="1"
        android:background="@color/Gray" />

圆形页面指示器

公共类 CirclePageIndicator 扩展视图实现 PageIndicator { private static final int INVALID_POINTER = -1;

private float mRadius;
private final Paint mPaintPageFill = new Paint(ANTI_ALIAS_FLAG);
private final Paint mPaintStroke = new Paint(ANTI_ALIAS_FLAG);
private final Paint mPaintFill = new Paint(ANTI_ALIAS_FLAG);
private ViewPager mViewPager;
private ViewPager.OnPageChangeListener mListener;
private int mCurrentPage;
private int mSnapPage;
private float mPageOffset;
private int mScrollState;
private int mOrientation;
private boolean mCentered;
private boolean mSnap;

private int mTouchSlop;
private float mLastMotionX = -1;
private int mActivePointerId = INVALID_POINTER;
private boolean mIsDragging;

public CirclePageIndicator(Context context) {
    this(context, null);
}

public CirclePageIndicator(Context context, AttributeSet attrs) {
    this(context, attrs, R.attr.vpiCirclePageIndicatorStyle);
}

public CirclePageIndicator(Context context, AttributeSet attrs, int defStyle) {
    super(context, attrs, defStyle);
    if (isInEditMode())
        return;

    // Load defaults from resources
    final Resources res = getResources();
    final int defaultPageColor = res
            .getColor(R.color.default_circle_indicator_page_color);
    final int defaultFillColor = res
            .getColor(R.color.default_circle_indicator_fill_color);
    final int defaultOrientation = res
            .getInteger(R.integer.default_circle_indicator_orientation);
    final int defaultStrokeColor = res
            .getColor(R.color.default_circle_indicator_stroke_color);
    final float defaultStrokeWidth = res
            .getDimension(R.dimen.default_circle_indicator_stroke_width);
    final float defaultRadius = res
            .getDimension(R.dimen.default_circle_indicator_radius);
    final boolean defaultCentered = res
            .getBoolean(R.bool.default_circle_indicator_centered);
    final boolean defaultSnap = res
            .getBoolean(R.bool.default_circle_indicator_snap);

    // Retrieve styles attributes
    TypedArray a = context.obtainStyledAttributes(attrs,
            R.styleable.CirclePageIndicator, defStyle, 0);

    mCentered = a.getBoolean(R.styleable.CirclePageIndicator_centered,
            defaultCentered);
    mOrientation = a.getInt(
            R.styleable.CirclePageIndicator_android_orientation,
            defaultOrientation);
    mPaintPageFill.setStyle(Style.FILL);
    mPaintPageFill.setColor(a.getColor(
            R.styleable.CirclePageIndicator_pageColor, defaultPageColor));
    mPaintStroke.setStyle(Style.STROKE);
    mPaintStroke.setColor(a
            .getColor(R.styleable.CirclePageIndicator_strokeColor,
                    defaultStrokeColor));
    mPaintStroke.setStrokeWidth(a
            .getDimension(R.styleable.CirclePageIndicator_strokeWidth,
                    defaultStrokeWidth));
    mPaintFill.setStyle(Style.FILL);
    mPaintFill.setColor(a.getColor(
            R.styleable.CirclePageIndicator_fillColor, defaultFillColor));
    mRadius = a.getDimension(R.styleable.CirclePageIndicator_radius,
            defaultRadius);
    mSnap = a.getBoolean(R.styleable.CirclePageIndicator_snap, defaultSnap);

    Drawable background = a
            .getDrawable(R.styleable.CirclePageIndicator_android_background);
    if (background != null) {
        setBackgroundDrawable(background);
    }

    a.recycle();

    final ViewConfiguration configuration = ViewConfiguration.get(context);
    mTouchSlop = ViewConfigurationCompat
            .getScaledPagingTouchSlop(configuration);
}

public void setCentered(boolean centered) {
    mCentered = centered;
    invalidate();
}

public boolean isCentered() {
    return mCentered;
}

public void setPageColor(int pageColor) {
    mPaintPageFill.setColor(pageColor);
    invalidate();
}

public int getPageColor() {
    return mPaintPageFill.getColor();
}

public void setFillColor(int fillColor) {
    mPaintFill.setColor(fillColor);
    invalidate();
}

public int getFillColor() {
    return mPaintFill.getColor();
}

public void setOrientation(int orientation) {
    switch (orientation) {
    case HORIZONTAL:
    case VERTICAL:
        mOrientation = orientation;
        requestLayout();
        break;

    default:
        throw new IllegalArgumentException(
                "Orientation must be either HORIZONTAL or VERTICAL.");
    }
}

public int getOrientation() {
    return mOrientation;
}

public void setStrokeColor(int strokeColor) {
    mPaintStroke.setColor(strokeColor);
    invalidate();
}

public int getStrokeColor() {
    return mPaintStroke.getColor();
}

public void setStrokeWidth(float strokeWidth) {
    mPaintStroke.setStrokeWidth(strokeWidth);
    invalidate();
}

public float getStrokeWidth() {
    return mPaintStroke.getStrokeWidth();
}

public void setRadius(float radius) {
    mRadius = radius;
    invalidate();
}

public float getRadius() {
    return mRadius;
}

public void setSnap(boolean snap) {
    mSnap = snap;
    invalidate();
}

public boolean isSnap() {
    return mSnap;
}

@Override
protected void onDraw(Canvas canvas) {
    super.onDraw(canvas);

    if (mViewPager == null) {
        return;
    }
    final int count = mViewPager.getAdapter().getCount();
    if (count == 0) {
        return;
    }

    if (mCurrentPage >= count) {
        setCurrentItem(count - 1);
        return;
    }

    int longSize;
    int longPaddingBefore;
    int longPaddingAfter;
    int shortPaddingBefore;
    if (mOrientation == HORIZONTAL) {
        longSize = getWidth();
        longPaddingBefore = getPaddingLeft();
        longPaddingAfter = getPaddingRight();
        shortPaddingBefore = getPaddingTop();
    } else {
        longSize = getHeight();
        longPaddingBefore = getPaddingTop();
        longPaddingAfter = getPaddingBottom();
        shortPaddingBefore = getPaddingLeft();
    }

    final float threeRadius = mRadius * 3;
    final float shortOffset = shortPaddingBefore + mRadius;
    float longOffset = longPaddingBefore + mRadius;
    if (mCentered) {
        longOffset += ((longSize - longPaddingBefore - longPaddingAfter) / 2.0f)
                - ((count * threeRadius) / 2.0f);
    }

    float dX;
    float dY;

    float pageFillRadius = mRadius;
    if (mPaintStroke.getStrokeWidth() > 0) {
        pageFillRadius -= mPaintStroke.getStrokeWidth() / 2.0f;
    }

    // Draw stroked circles
    for (int iLoop = 0; iLoop < count; iLoop++) {
        float drawLong = longOffset + (iLoop * threeRadius);
        if (mOrientation == HORIZONTAL) {
            dX = drawLong;
            dY = shortOffset;
        } else {
            dX = shortOffset;
            dY = drawLong;
        }
        // Only paint fill if not completely transparent
        if (mPaintPageFill.getAlpha() > 0) {
            canvas.drawCircle(dX, dY, pageFillRadius, mPaintPageFill);
        }

        // Only paint stroke if a stroke width was non-zero
        if (pageFillRadius != mRadius) {
            canvas.drawCircle(dX, dY, mRadius, mPaintStroke);
        }
    }

    // Draw the filled circle according to the current scroll
    float cx = (mSnap ? mSnapPage : mCurrentPage) * threeRadius;
    if (!mSnap) {
        cx += mPageOffset * threeRadius;
    }
    if (mOrientation == HORIZONTAL) {
        dX = longOffset + cx;
        dY = shortOffset;
    } else {
        dX = shortOffset;
        dY = longOffset + cx;
    }
    canvas.drawCircle(dX, dY, mRadius, mPaintFill);
}

public boolean onTouchEvent(android.view.MotionEvent ev) {
    if (super.onTouchEvent(ev)) {
        return true;
    }
    if ((mViewPager == null) || (mViewPager.getAdapter().getCount() == 0)) {
        return false;
    }

    final int action = ev.getAction() & MotionEventCompat.ACTION_MASK;
    switch (action) {
    case MotionEvent.ACTION_DOWN:
        mActivePointerId = MotionEventCompat.getPointerId(ev, 0);
        mLastMotionX = ev.getX();
        break;

    case MotionEvent.ACTION_MOVE: {
        final int activePointerIndex = MotionEventCompat.findPointerIndex(
                ev, mActivePointerId);
        final float x = MotionEventCompat.getX(ev, activePointerIndex);
        final float deltaX = x - mLastMotionX;

        if (!mIsDragging) {
            if (Math.abs(deltaX) > mTouchSlop) {
                mIsDragging = true;
            }
        }

        if (mIsDragging) {
            mLastMotionX = x;
            if (mViewPager.isFakeDragging() || mViewPager.beginFakeDrag()) {
                mViewPager.fakeDragBy(deltaX);
            }
        }

        break;
    }

    case MotionEvent.ACTION_CANCEL:
    case MotionEvent.ACTION_UP:
        if (!mIsDragging) {
            final int count = mViewPager.getAdapter().getCount();
            final int width = getWidth();
            final float halfWidth = width / 2f;
            final float sixthWidth = width / 6f;

            if ((mCurrentPage > 0) && (ev.getX() < halfWidth - sixthWidth)) {
                if (action != MotionEvent.ACTION_CANCEL) {
                    mViewPager.setCurrentItem(mCurrentPage - 1);
                }
                return true;
            } else if ((mCurrentPage < count - 1)
                    && (ev.getX() > halfWidth + sixthWidth)) {
                if (action != MotionEvent.ACTION_CANCEL) {
                    mViewPager.setCurrentItem(mCurrentPage + 1);
                }
                return true;
            }
        }

        mIsDragging = false;
        mActivePointerId = INVALID_POINTER;
        if (mViewPager.isFakeDragging())
            mViewPager.endFakeDrag();
        break;

    case MotionEventCompat.ACTION_POINTER_DOWN: {
        final int index = MotionEventCompat.getActionIndex(ev);
        mLastMotionX = MotionEventCompat.getX(ev, index);
        mActivePointerId = MotionEventCompat.getPointerId(ev, index);
        break;
    }

    case MotionEventCompat.ACTION_POINTER_UP:
        final int pointerIndex = MotionEventCompat.getActionIndex(ev);
        final int pointerId = MotionEventCompat.getPointerId(ev,
                pointerIndex);
        if (pointerId == mActivePointerId) {
            final int newPointerIndex = pointerIndex == 0 ? 1 : 0;
            mActivePointerId = MotionEventCompat.getPointerId(ev,
                    newPointerIndex);
        }
        mLastMotionX = MotionEventCompat.getX(ev,
                MotionEventCompat.findPointerIndex(ev, mActivePointerId));
        break;
    }

    return true;
}

@Override
public void setViewPager(ViewPager view) {
    if (mViewPager == view) {
        return;
    }
    if (mViewPager != null) {
        mViewPager.setOnPageChangeListener(null);
    }
    if (view.getAdapter() == null) {
        throw new IllegalStateException(
                "ViewPager does not have adapter instance.");
    }
    mViewPager = view;
    mViewPager.setOnPageChangeListener(this);
    invalidate();
}

@Override
public void setViewPager(ViewPager view, int initialPosition) {
    setViewPager(view);
    setCurrentItem(initialPosition);
}

@Override
public void setCurrentItem(int item) {
    if (mViewPager == null) {
        throw new IllegalStateException("ViewPager has not been bound.");
    }
    mViewPager.setCurrentItem(item);
    mCurrentPage = item;
    invalidate();
}

@Override
public void notifyDataSetChanged() {
    invalidate();
}

@Override
public void onPageScrollStateChanged(int state) {
    mScrollState = state;

    if (mListener != null) {
        mListener.onPageScrollStateChanged(state);
    }
}

@Override
public void onPageScrolled(int position, float positionOffset,
        int positionOffsetPixels) {
    mCurrentPage = position;
    mPageOffset = positionOffset;
    invalidate();

    if (mListener != null) {
        mListener.onPageScrolled(position, positionOffset,
                positionOffsetPixels);
    }
}

@Override
public void onPageSelected(int position) {
    if (mSnap || mScrollState == ViewPager.SCROLL_STATE_IDLE) {
        mCurrentPage = position;
        mSnapPage = position;
        invalidate();
    }

    if (mListener != null) {
        mListener.onPageSelected(position);
    }
}

@Override
public void setOnPageChangeListener(ViewPager.OnPageChangeListener listener) {
    mListener = listener;
}

/*
 * (non-Javadoc)
 * 
 * @see android.view.View#onMeasure(int, int)
 */
@Override
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
    if (mOrientation == HORIZONTAL) {
        setMeasuredDimension(measureLong(widthMeasureSpec),
                measureShort(heightMeasureSpec));
    } else {
        setMeasuredDimension(measureShort(widthMeasureSpec),
                measureLong(heightMeasureSpec));
    }
}

/**
 * Determines the width of this view
 * 
 * @param measureSpec
 *            A measureSpec packed into an int
 * @return The width of the view, honoring constraints from measureSpec
 */
private int measureLong(int measureSpec) {
    int result;
    int specMode = MeasureSpec.getMode(measureSpec);
    int specSize = MeasureSpec.getSize(measureSpec);

    if ((specMode == MeasureSpec.EXACTLY) || (mViewPager == null)) {
        // We were told how big to be
        result = specSize;
    } else {
        // Calculate the width according the views count
        final int count = mViewPager.getAdapter().getCount();
        result = (int) (getPaddingLeft() + getPaddingRight()
                + (count * 2 * mRadius) + (count - 1) * mRadius + 1);
        // Respect AT_MOST value if that was what is called for by
        // measureSpec
        if (specMode == MeasureSpec.AT_MOST) {
            result = Math.min(result, specSize);
        }
    }
    return result;
}

/**
 * Determines the height of this view
 * 
 * @param measureSpec
 *            A measureSpec packed into an int
 * @return The height of the view, honoring constraints from measureSpec
 */
private int measureShort(int measureSpec) {
    int result;
    int specMode = MeasureSpec.getMode(measureSpec);
    int specSize = MeasureSpec.getSize(measureSpec);

    if (specMode == MeasureSpec.EXACTLY) {
        // We were told how big to be
        result = specSize;
    } else {
        // Measure the height
        result = (int) (2 * mRadius + getPaddingTop() + getPaddingBottom() + 1);
        // Respect AT_MOST value if that was what is called for by
        // measureSpec
        if (specMode == MeasureSpec.AT_MOST) {
            result = Math.min(result, specSize);
        }
    }
    return result;
}

@Override
public void onRestoreInstanceState(Parcelable state) {
    SavedState savedState = (SavedState) state;
    super.onRestoreInstanceState(savedState.getSuperState());
    mCurrentPage = savedState.currentPage;
    mSnapPage = savedState.currentPage;
    requestLayout();
}

@Override
public Parcelable onSaveInstanceState() {
    Parcelable superState = super.onSaveInstanceState();
    SavedState savedState = new SavedState(superState);
    savedState.currentPage = mCurrentPage;
    return savedState;
}

static class SavedState extends BaseSavedState {
    int currentPage;

    public SavedState(Parcelable superState) {
        super(superState);
    }

    private SavedState(Parcel in) {
        super(in);
        currentPage = in.readInt();
    }

    @Override
    public void writeToParcel(Parcel dest, int flags) {
        super.writeToParcel(dest, flags);
        dest.writeInt(currentPage);
    }

    @SuppressWarnings("UnusedDeclaration")
    public static final Parcelable.Creator<SavedState> CREATOR = new Parcelable.Creator<SavedState>() {
        @Override
        public SavedState createFromParcel(Parcel in) {
            return new SavedState(in);
        }

        @Override
        public SavedState[] newArray(int size) {
            return new SavedState[size];
        }
    };
}

}

页面指示器

public interface PageIndicator extends ViewPager.OnPageChangeListener { /** * 将指标绑定到 ViewPager。* * @param view */ void setViewPager(ViewPager view);

/**
 * Bind the indicator to a ViewPager.
 *
 * @param view
 * @param initialPosition
 */
void setViewPager(ViewPager view, int initialPosition);

/**
 * <p>Set the current page of both the ViewPager and indicator.</p>
 *
 * <p>This <strong>must</strong> be used if you need to set the page before
 * the views are drawn on screen (e.g., default start page).</p>
 *
 * @param item
 */
void setCurrentItem(int item);

/**
 * Set a page change listener which will receive forwarded events.
 *
 * @param listener
 */
void setOnPageChangeListener(ViewPager.OnPageChangeListener listener);

/**
 * Notify the indicator that the fragment list has changed.
 */
void notifyDataSetChanged();

}

android - android：如何在 SMS 上从网格和过去复制笑脸并用笑脸图像发送

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