Java ViewConfiguration.get方法代码示例

import android.view.ViewConfiguration; //导入方法依赖的package包/类
public ResolverDrawerLayout(Context context, AttributeSet attrs, int defStyleAttr) {
    super(context, attrs, defStyleAttr);

    final TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.ResolverDrawerLayout,
            defStyleAttr, 0);
    mMaxWidth = a.getDimensionPixelSize(R.styleable.ResolverDrawerLayout_android_maxWidth, -1);
    mMaxCollapsedHeight = a.getDimensionPixelSize(
            R.styleable.ResolverDrawerLayout_maxCollapsedHeight, 0);
    mMaxCollapsedHeightSmall = a.getDimensionPixelSize(
            R.styleable.ResolverDrawerLayout_maxCollapsedHeightSmall,
            mMaxCollapsedHeight);
    a.recycle();

    mScrollIndicatorDrawable = context.getDrawable(R.drawable.scroll_indicator_material);

    mScroller = new OverScroller(context, AnimationUtils.loadInterpolator(context,
            android.R.interpolator.decelerate_quint));
    mVelocityTracker = VelocityTracker.obtain();

    final ViewConfiguration vc = ViewConfiguration.get(context);
    mTouchSlop = vc.getScaledTouchSlop();
    mMinFlingVelocity = vc.getScaledMinimumFlingVelocity();

    setImportantForAccessibility(View.IMPORTANT_FOR_ACCESSIBILITY_YES);
}
 

import android.view.ViewConfiguration; //导入方法依赖的package包/类
private ViewDragHelper(Context context, ViewGroup forParent, Callback cb) {
    if (forParent == null) {
        throw new IllegalArgumentException("Parent view may not be null");
    } else if (cb == null) {
        throw new IllegalArgumentException("Callback may not be null");
    } else {
        this.mParentView = forParent;
        this.mCallback = cb;
        ViewConfiguration vc = ViewConfiguration.get(context);
        this.mEdgeSize = (int) ((TitleBar.BACKBTN_LEFT_MARGIN * context.getResources().getDisplayMetrics().density) + 0.5f);
        this.mTouchSlop = vc.getScaledTouchSlop();
        this.mMaxVelocity = (float) vc.getScaledMaximumFlingVelocity();
        this.mMinVelocity = (float) vc.getScaledMinimumFlingVelocity();
        this.mScroller = ScrollerCompat.create(context, sInterpolator);
    }
}
 

import android.view.ViewConfiguration; //导入方法依赖的package包/类
private ViewDragHelper(Context context, ViewGroup forParent, Callback cb) {
    if (forParent == null) {
        throw new IllegalArgumentException("Parent view may not be null");
    } else if (cb == null) {
        throw new IllegalArgumentException("Callback may not be null");
    } else {
        this.mParentView = forParent;
        this.mCallback = cb;
        ViewConfiguration vc = ViewConfiguration.get(context);
        this.mEdgeSize = (int) ((20.0f * context.getResources().getDisplayMetrics().density)
                + 0.5f);
        this.mTouchSlop = vc.getScaledTouchSlop();
        this.mMaxVelocity = (float) vc.getScaledMaximumFlingVelocity();
        this.mMinVelocity = (float) vc.getScaledMinimumFlingVelocity();
        this.mScroller = ScrollerCompat.create(context, sInterpolator);
    }
}
 

import android.view.ViewConfiguration; //导入方法依赖的package包/类
/**
 * Apps should use ViewDragHelper.create() to get a new instance. This will
 * allow VDH to use internal compatibility implementations for different
 * platform versions.
 *
 * @param context   Context to initialize config-dependent params from
 * @param forParent Parent view to monitor
 */
private ViewDragHelper(Context context, ViewGroup forParent, Callback cb) {
    if (forParent == null) {
        throw new IllegalArgumentException("Parent view may not be null");
    }
    if (cb == null) {
        throw new IllegalArgumentException("Callback may not be null");
    }

    mParentView = forParent;
    mCallback = cb;

    final ViewConfiguration vc = ViewConfiguration.get(context);
    final float density = context.getResources().getDisplayMetrics().density;
    mEdgeSize = (int) (EDGE_SIZE * density + 0.5f);

    mTouchSlop = vc.getScaledTouchSlop();
    mMaxVelocity = vc.getScaledMaximumFlingVelocity();
    mMinVelocity = vc.getScaledMinimumFlingVelocity();
    mScroller = ScrollerCompat.create(context, sInterpolator);
}
 

import android.view.ViewConfiguration; //导入方法依赖的package包/类
void initCustomViewAbove() {
	setWillNotDraw(false);
	setDescendantFocusability(FOCUS_AFTER_DESCENDANTS);
	setFocusable(true);
	final Context context = getContext();
	mScroller = new Scroller(context, sInterpolator);
	final ViewConfiguration configuration = ViewConfiguration.get(context);
	mTouchSlop = ViewConfigurationCompat.getScaledPagingTouchSlop(configuration);
	mMinimumVelocity = configuration.getScaledMinimumFlingVelocity();
	mMaximumVelocity = configuration.getScaledMaximumFlingVelocity();
	setInternalPageChangeListener(new SimpleOnPageChangeListener() {
		public void onPageSelected(int position) {
			if (mViewBehind != null) {
				switch (position) {
				case 0:
				case 2:
					mViewBehind.setChildrenEnabled(true);
					break;
				case 1:
					mViewBehind.setChildrenEnabled(false);
					break;
				}
			}
		}
	});

	final float density = context.getResources().getDisplayMetrics().density;
	mFlingDistance = (int) (MIN_DISTANCE_FOR_FLING * density);
}
 

import android.view.ViewConfiguration; //导入方法依赖的package包/类
public UnderlinePageIndicator(Context context, AttributeSet attrs, int defStyle) {
    super(context, attrs, defStyle);
    if (isInEditMode()) return;

    final Resources res = getResources();

    //Load defaults from resources
    final boolean defaultFades = res.getBoolean(R.bool.default_underline_indicator_fades);
    final int defaultFadeDelay = res.getInteger(R.integer.default_underline_indicator_fade_delay);
    final int defaultFadeLength = res.getInteger(R.integer.default_underline_indicator_fade_length);
    final int defaultSelectedColor = res.getColor(R.color.default_underline_indicator_selected_color);

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

    setFades(a.getBoolean(R.styleable.UnderlinePageIndicator_fades, defaultFades));
    setSelectedColor(a.getColor(R.styleable.UnderlinePageIndicator_selectedColor, defaultSelectedColor));
    setFadeDelay(a.getInteger(R.styleable.UnderlinePageIndicator_fadeDelay, defaultFadeDelay));
    setFadeLength(a.getInteger(R.styleable.UnderlinePageIndicator_fadeLength, defaultFadeLength));

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

    a.recycle();

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

import android.view.ViewConfiguration; //导入方法依赖的package包/类
public Switch(Context context) {
    super(context);

    mThumbDrawable = context.getResources().getDrawable(R.drawable.switch_thumb);
    if (mThumbDrawable != null) {
        mThumbDrawable.setCallback(this);
    }
    mTrackDrawable = context.getResources().getDrawable(R.drawable.switch_track);
    if (mTrackDrawable != null) {
        mTrackDrawable.setCallback(this);
    }

    if (AndroidUtilities.density < 1) {
        mSwitchMinWidth = AndroidUtilities.dp(30);
    } else {
        mSwitchMinWidth = 0;
    }

    mSwitchPadding = 0;
    mSplitTrack = false;

    final ViewConfiguration config = ViewConfiguration.get(context);
    mTouchSlop = config.getScaledTouchSlop();
    mMinFlingVelocity = config.getScaledMinimumFlingVelocity();

    refreshDrawableState();
    setChecked(isChecked());
}
 

import android.view.ViewConfiguration; //导入方法依赖的package包/类
public BottomSheet(Context context, boolean needFocus) {
    super(context, R.style.TransparentDialog);

    if (Build.VERSION.SDK_INT >= 21) {
        getWindow().addFlags(WindowManager.LayoutParams.FLAG_LAYOUT_INSET_DECOR | WindowManager.LayoutParams.FLAG_LAYOUT_IN_SCREEN | WindowManager.LayoutParams.FLAG_DRAWS_SYSTEM_BAR_BACKGROUNDS);
    }
    ViewConfiguration vc = ViewConfiguration.get(context);
    touchSlop = vc.getScaledTouchSlop();

    Rect padding = new Rect();
    shadowDrawable = context.getResources().getDrawable(R.drawable.sheet_shadow);
    shadowDrawable.getPadding(padding);
    backgroundPaddingLeft = padding.left;
    backgroundPaddingTop = padding.top;

    container = new ContainerView(getContext());
    container.setBackgroundDrawable(backDrawable);
    focusable = needFocus;
    if (Build.VERSION.SDK_INT >= 21) {
        container.setFitsSystemWindows(true);
        container.setOnApplyWindowInsetsListener(new View.OnApplyWindowInsetsListener() {
            @SuppressLint("NewApi")
            @Override
            public WindowInsets onApplyWindowInsets(View v, WindowInsets insets) {
                lastInsets = insets;
                v.requestLayout();
                return insets.consumeSystemWindowInsets();
            }
        });
        container.setSystemUiVisibility(View.SYSTEM_UI_FLAG_LAYOUT_STABLE | View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN);
    }

    ciclePaint.setColor(0xffffffff);
    backDrawable.setAlpha(0);
}
 

import android.view.ViewConfiguration; //导入方法依赖的package包/类
public ScaleDragDetector(Context context, OnScaleDragGestureListener scaleDragGestureListener) {
    mScaleDetector = new ScaleGestureDetector(context, this);
    mScaleDragGestureListener = scaleDragGestureListener;

    final ViewConfiguration configuration = ViewConfiguration.get(context);
    mMinimumVelocity = configuration.getScaledMinimumFlingVelocity();
    mTouchSlop = configuration.getScaledTouchSlop();
}
 

import android.view.ViewConfiguration; //导入方法依赖的package包/类
void initViewPager() {
    setWillNotDraw(false);
    setDescendantFocusability(FOCUS_AFTER_DESCENDANTS);
    setFocusable(true);
    final Context context = getContext();
    mScroller = new Scroller(context, sInterpolator);
    final ViewConfiguration configuration = ViewConfiguration.get(context);
    final float density = context.getResources().getDisplayMetrics().density;

    mTouchSlop = ViewConfigurationCompat.getScaledPagingTouchSlop(configuration);
    mMinimumVelocity = (int) (MIN_FLING_VELOCITY * density);
    mMaximumVelocity = configuration.getScaledMaximumFlingVelocity();
    mLeftEdge = new EdgeEffectCompat(context);
    mRightEdge = new EdgeEffectCompat(context);

    mFlingDistance = (int) (MIN_DISTANCE_FOR_FLING * density);
    mCloseEnough = (int) (CLOSE_ENOUGH * density);
    mDefaultGutterSize = (int) (DEFAULT_GUTTER_SIZE * density);

    ViewCompat.setAccessibilityDelegate(this, new MyAccessibilityDelegate());

    if (ViewCompat.getImportantForAccessibility(this)
            == ViewCompat.IMPORTANT_FOR_ACCESSIBILITY_AUTO) {
        ViewCompat.setImportantForAccessibility(this,
                ViewCompat.IMPORTANT_FOR_ACCESSIBILITY_YES);
    }
}
 

import android.view.ViewConfiguration; //导入方法依赖的package包/类
/**
 * @param context
 */
public FrameView(Context context) {
    super(context);
    ViewConfiguration vc = ViewConfiguration.get(getContext());
    mTouchSlop = vc.getScaledTouchSlop();
}
 

import android.view.ViewConfiguration; //导入方法依赖的package包/类
private void init() {
    mSolidColor = 0;
    mSelectionDivider = getResources().getDrawable(R.drawable.numberpicker_selection_divider);

    mSelectionDividerHeight = (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, UNSCALED_DEFAULT_SELECTION_DIVIDER_HEIGHT, getResources().getDisplayMetrics());
    mSelectionDividersDistance = (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, UNSCALED_DEFAULT_SELECTION_DIVIDERS_DISTANCE, getResources().getDisplayMetrics());

    mMinHeight = SIZE_UNSPECIFIED;

    mMaxHeight = (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, 180, getResources().getDisplayMetrics());
    if (mMinHeight != SIZE_UNSPECIFIED && mMaxHeight != SIZE_UNSPECIFIED && mMinHeight > mMaxHeight) {
        throw new IllegalArgumentException("minHeight > maxHeight");
    }

    mMinWidth = (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, 64, getResources().getDisplayMetrics());

    mMaxWidth = SIZE_UNSPECIFIED;
    if (mMinWidth != SIZE_UNSPECIFIED && mMaxWidth != SIZE_UNSPECIFIED && mMinWidth > mMaxWidth) {
        throw new IllegalArgumentException("minWidth > maxWidth");
    }

    mComputeMaxWidth = (mMaxWidth == SIZE_UNSPECIFIED);

    mVirtualButtonPressedDrawable = getResources().getDrawable(R.drawable.item_background_holo_light);

    mPressedStateHelper = new PressedStateHelper();

    setWillNotDraw(false);

    mInputText = new TextView(getContext());
    addView(mInputText);
    mInputText.setLayoutParams(new LinearLayout.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.WRAP_CONTENT));
    mInputText.setGravity(Gravity.CENTER);
    mInputText.setSingleLine(true);
    mInputText.setBackgroundResource(0);
    mInputText.setTextSize(TypedValue.COMPLEX_UNIT_SP, 18);

    ViewConfiguration configuration = ViewConfiguration.get(getContext());
    mTouchSlop = configuration.getScaledTouchSlop();
    mMinimumFlingVelocity = configuration.getScaledMinimumFlingVelocity();
    mMaximumFlingVelocity = configuration.getScaledMaximumFlingVelocity() / SELECTOR_MAX_FLING_VELOCITY_ADJUSTMENT;
    mTextSize = (int) mInputText.getTextSize();

    Paint paint = new Paint();
    paint.setAntiAlias(true);
    paint.setTextAlign(Align.CENTER);
    paint.setTextSize(mTextSize);
    paint.setTypeface(mInputText.getTypeface());
    ColorStateList colors = mInputText.getTextColors();
    int color = colors.getColorForState(ENABLED_STATE_SET, Color.WHITE);
    paint.setColor(color);
    mSelectorWheelPaint = paint;

    mFlingScroller = new Scroller(getContext(), null, true);
    mAdjustScroller = new Scroller(getContext(), new DecelerateInterpolator(2.5f));

    updateInputTextView();
}
 

import android.view.ViewConfiguration; //导入方法依赖的package包/类
public CupcakeGestureDetector(Context context) {
    final ViewConfiguration configuration = ViewConfiguration
            .get(context);
    mMinimumVelocity = configuration.getScaledMinimumFlingVelocity();
    mTouchSlop = configuration.getScaledTouchSlop();
}
 

import android.view.ViewConfiguration; //导入方法依赖的package包/类
/**
 * Handles the touch event and determines whether to show the fast scroller (or updates it if
 * it is already showing).
 */
public void handleTouchEvent(MotionEvent ev, int downX, int downY, int lastY,
                             OnFastScrollStateChangeListener stateChangeListener) {
    ViewConfiguration config = ViewConfiguration.get(mRecyclerView.getContext());

    int action = ev.getAction();
    int y = (int) ev.getY();
    switch (action) {
        case MotionEvent.ACTION_DOWN:
            if (isNearPoint(downX, downY)) {
                mTouchOffset = downY - mThumbPosition.y;
            }
            break;
        case MotionEvent.ACTION_MOVE:
            // Check if we should start scrolling
            if (!mIsDragging && isNearPoint(downX, downY) &&
                    Math.abs(y - downY) > config.getScaledTouchSlop()) {
                mRecyclerView.getParent().requestDisallowInterceptTouchEvent(true);
                mIsDragging = true;
                mTouchOffset += (lastY - downY);
                mPopup.animateVisibility(true);
                if (stateChangeListener != null) {
                    stateChangeListener.onFastScrollStart();
                }
            }
            if (mIsDragging) {
                // Update the fastscroller section name at this touch position
                int top = 0;
                int bottom = mRecyclerView.getHeight() - mThumbHeight;
                float boundedY = (float) Math.max(top, Math.min(bottom, y - mTouchOffset));
                String sectionName = mRecyclerView.scrollToPositionAtProgress((boundedY - top) / (bottom - top));
                mPopup.setSectionName(sectionName);
                mPopup.animateVisibility(!sectionName.isEmpty());
                mRecyclerView.invalidate(mPopup.updateFastScrollerBounds(mRecyclerView, mThumbPosition.y));
            }
            break;
        case MotionEvent.ACTION_UP:
        case MotionEvent.ACTION_CANCEL:
            mTouchOffset = 0;
            if (mIsDragging) {
                mIsDragging = false;
                mPopup.animateVisibility(false);
                if (stateChangeListener != null) {
                    stateChangeListener.onFastScrollStop();
                }
            }
            break;
    }
}
 

import android.view.ViewConfiguration; //导入方法依赖的package包/类
public CupcakeGestureDetector(Context context) {
    final ViewConfiguration configuration = ViewConfiguration.get(context);
    mMinimumVelocity = configuration.getScaledMinimumFlingVelocity();
    mTouchSlop = configuration.getScaledTouchSlop();
}