opt

modules/mogo-module-apps/src/main/java/com/mogo/module/apps/AppsFragment.java

@@ -10,6 +10,7 @@ import androidx.viewpager.widget.ViewPager;
 import com.alibaba.android.arouter.launcher.ARouter;
 import com.mogo.commons.mvp.MvpFragment;
 import com.mogo.module.apps.model.AppInfo;
+import com.mogo.module.apps.view.LinePageIndicator;
 import com.mogo.service.MogoServicePaths;
 import com.mogo.service.fragmentmanager.IMogoFragmentManager;
 import com.mogo.utils.logger.Logger;
@@ -35,6 +36,7 @@ public class AppsFragment extends MvpFragment< AppsView, AppsPresenter > impleme
     private IMogoFragmentManager mMogoFragmentManager;
 
     private View mLoadingView;
+    private LinePageIndicator mIndicator;
 
     @Override
     protected int getLayoutId() {
@@ -66,6 +68,7 @@ public class AppsFragment extends MvpFragment< AppsView, AppsPresenter > impleme
 //        mBottomSheetBehavior.setState( BottomSheetBehavior.STATE_COLLAPSED );
         mLoadingView = findViewById( R.id.module_apps_id_loading );
         mLoadingView.setVisibility( View.VISIBLE );
+        mIndicator = findViewById( R.id.module_apps_id_indicator );
     }
 
     @NonNull
@@ -93,6 +96,7 @@ public class AppsFragment extends MvpFragment< AppsView, AppsPresenter > impleme
         } else {
             mAppsPagerAdapter.setPagedApps( appInfos );
         }
+        mIndicator.setViewPager( mAppsPager );
         mLoadingView.setVisibility( View.GONE );
     }
 }

modules/mogo-module-apps/src/main/java/com/mogo/module/apps/view/LinePageIndicator.java

@@ -0,0 +1,455 @@
+/*
+ * Copyright (C) 2012 Jake Wharton
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.mogo.module.apps.view;
+
+import android.content.Context;
+import android.content.res.Resources;
+import android.content.res.TypedArray;
+import android.graphics.Canvas;
+import android.graphics.Paint;
+import android.graphics.drawable.Drawable;
+import android.os.Parcel;
+import android.os.Parcelable;
+import android.util.AttributeSet;
+import android.view.MotionEvent;
+import android.view.View;
+import android.view.ViewConfiguration;
+import androidx.core.view.MotionEventCompat;
+import androidx.core.view.ViewConfigurationCompat;
+import androidx.viewpager.widget.ViewPager;
+
+import com.mogo.module.apps.R;
+
+/**
+ * Draws a line for each page. The current page line is colored differently
+ * than the unselected page lines.
+ */
+public class LinePageIndicator extends View implements PageIndicator {
+    private static final int INVALID_POINTER = -1;
+
+    private final Paint mPaintUnselected = new Paint(Paint.ANTI_ALIAS_FLAG);
+    private final Paint mPaintSelected = new Paint(Paint.ANTI_ALIAS_FLAG);
+    private ViewPager mViewPager;
+    private ViewPager.OnPageChangeListener mListener;
+    private int mCurrentPage;
+    private boolean mCentered;
+    private float mLineWidth;
+    private float mGapWidth;
+
+    private int mTouchSlop;
+    private float mLastMotionX = -1;
+    private int mActivePointerId = INVALID_POINTER;
+    private boolean mIsDragging;
+
+
+    public LinePageIndicator(Context context) {
+        this(context, null);
+    }
+
+    public LinePageIndicator(Context context, AttributeSet attrs) {
+        this(context, attrs, R.attr.vpiLinePageIndicatorStyle);
+    }
+
+    public LinePageIndicator(Context context, AttributeSet attrs, int defStyle) {
+        super(context, attrs, defStyle);
+        if (isInEditMode()) {
+            return;
+        }
+
+        final Resources res = getResources();
+
+        //Load defaults from resources
+        final int defaultSelectedColor = res.getColor(R.color.default_line_indicator_selected_color);
+        final int defaultUnselectedColor = res.getColor(R.color.default_line_indicator_unselected_color);
+        final float defaultLineWidth = res.getDimension(R.dimen.default_line_indicator_line_width);
+        final float defaultGapWidth = res.getDimension(R.dimen.default_line_indicator_gap_width);
+        final float defaultStrokeWidth = res.getDimension(R.dimen.default_line_indicator_stroke_width);
+        final boolean defaultCentered = res.getBoolean(R.bool.default_line_indicator_centered);
+
+        //Retrieve styles attributes
+        TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.LinePageIndicator, defStyle, 0);
+
+        mCentered = a.getBoolean(R.styleable.LinePageIndicator_centered, defaultCentered);
+        mLineWidth = a.getDimension(R.styleable.LinePageIndicator_lineWidth, defaultLineWidth);
+        mGapWidth = a.getDimension(R.styleable.LinePageIndicator_gapWidth, defaultGapWidth);
+        setStrokeWidth(a.getDimension(R.styleable.LinePageIndicator_strokeWidth, defaultStrokeWidth));
+        mPaintUnselected.setColor(a.getColor(R.styleable.LinePageIndicator_unselectedColor, defaultUnselectedColor));
+        mPaintSelected.setColor(a.getColor(R.styleable.LinePageIndicator_selectedColor, defaultSelectedColor));
+
+        Drawable background = a.getDrawable(R.styleable.LinePageIndicator_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 setUnselectedColor(int unselectedColor) {
+        mPaintUnselected.setColor(unselectedColor);
+        invalidate();
+    }
+
+    public int getUnselectedColor() {
+        return mPaintUnselected.getColor();
+    }
+
+    public void setSelectedColor(int selectedColor) {
+        mPaintSelected.setColor(selectedColor);
+        invalidate();
+    }
+
+    public int getSelectedColor() {
+        return mPaintSelected.getColor();
+    }
+
+    public void setLineWidth(float lineWidth) {
+        mLineWidth = lineWidth;
+        invalidate();
+    }
+
+    public float getLineWidth() {
+        return mLineWidth;
+    }
+
+    public void setStrokeWidth(float lineHeight) {
+        mPaintSelected.setStrokeWidth(lineHeight);
+        mPaintUnselected.setStrokeWidth(lineHeight);
+        invalidate();
+    }
+
+    public float getStrokeWidth() {
+        return mPaintSelected.getStrokeWidth();
+    }
+
+    public void setGapWidth(float gapWidth) {
+        mGapWidth = gapWidth;
+        invalidate();
+    }
+
+    public float getGapWidth() {
+        return mGapWidth;
+    }
+
+    @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;
+        }
+
+        final float lineWidthAndGap = mLineWidth + mGapWidth;
+        final float indicatorWidth = (count * lineWidthAndGap) - mGapWidth;
+        final float paddingTop = getPaddingTop();
+        final float paddingLeft = getPaddingLeft();
+        final float paddingRight = getPaddingRight();
+
+        float verticalOffset = paddingTop + ((getHeight() - paddingTop - getPaddingBottom()) / 2.0f);
+        float horizontalOffset = paddingLeft;
+        if (mCentered) {
+            horizontalOffset += ((getWidth() - paddingLeft - paddingRight) / 2.0f) - (indicatorWidth / 2.0f);
+        }
+
+        //Draw stroked circles
+        for (int i = 0; i < count; i++) {
+            float dx1 = horizontalOffset + (i * lineWidthAndGap);
+            float dx2 = dx1 + mLineWidth;
+            canvas.drawLine(dx1, verticalOffset, dx2, verticalOffset, (i == mCurrentPage) ? mPaintSelected : mPaintUnselected);
+        }
+    }
+
+    public boolean onTouchEvent(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;
+                default:
+                    break;
+        }
+
+        return true;
+    }
+
+    @Override
+    public void setViewPager(ViewPager viewPager) {
+        if (mViewPager == viewPager) {
+            return;
+        }
+        if (mViewPager != null) {
+            //Clear us from the old pager.
+           // mViewPager.setOnPageChangeListener(null);
+        }
+        if (viewPager.getAdapter() == null) {
+            throw new IllegalStateException("ViewPager does not have adapter instance.");
+        }
+        mViewPager = viewPager;
+        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) {
+        if (mListener != null) {
+            mListener.onPageScrollStateChanged(state);
+        }
+    }
+
+    @Override
+    public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) {
+        if (mListener != null) {
+            mListener.onPageScrolled(position, positionOffset, positionOffsetPixels);
+        }
+    }
+
+    @Override
+    public void onPageSelected(int position) {
+        mCurrentPage = position;
+        invalidate();
+
+        if (mListener != null) {
+            mListener.onPageSelected(position);
+        }
+    }
+
+    @Override
+    public void setOnPageChangeListener(ViewPager.OnPageChangeListener listener) {
+        mListener = listener;
+    }
+
+    @Override
+    protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
+        setMeasuredDimension(measureWidth(widthMeasureSpec), measureHeight(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 measureWidth(int measureSpec) {
+        float 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 = getPaddingLeft() + getPaddingRight() + (count * mLineWidth) + ((count - 1) * mGapWidth);
+            //Respect AT_MOST value if that was what is called for by measureSpec
+            if (specMode == MeasureSpec.AT_MOST) {
+                result = Math.min(result, specSize);
+            }
+        }
+        return (int)Math.ceil(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 measureHeight(int measureSpec) {
+        float 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 = mPaintSelected.getStrokeWidth() + getPaddingTop() + getPaddingBottom();
+            //Respect AT_MOST value if that was what is called for by measureSpec
+            if (specMode == MeasureSpec.AT_MOST) {
+                result = Math.min(result, specSize);
+            }
+        }
+        return (int)Math.ceil(result);
+    }
+
+    @Override
+    public void onRestoreInstanceState(Parcelable state) {
+        SavedState savedState = (SavedState)state;
+        super.onRestoreInstanceState(savedState.getSuperState());
+        mCurrentPage = 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 Creator<SavedState> CREATOR = new Creator<SavedState>() {
+            @Override
+            public SavedState createFromParcel(Parcel in) {
+                return new SavedState(in);
+            }
+
+            @Override
+            public SavedState[] newArray(int size) {
+                return new SavedState[size];
+            }
+        };
+    }
+}

modules/mogo-module-apps/src/main/java/com/mogo/module/apps/view/PageIndicator.java

@@ -0,0 +1,64 @@
+/*
+ * Copyright (C) 2011 Patrik Akerfeldt
+ * Copyright (C) 2011 Jake Wharton
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.mogo.module.apps.view;
+
+
+import androidx.viewpager.widget.ViewPager;
+
+/**
+ * A PageIndicator is responsible to show an visual indicator on the total views
+ * number and the current visible view.
+ */
+public interface PageIndicator extends ViewPager.OnPageChangeListener {
+    /**
+     * Bind the indicator to a 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();
+}