下面列出了怎么用android.support.v4.view.WindowInsetsCompat的API类实例代码及写法，或者点击链接到github查看源代码。
public InsetsFrameLayout(Context context, AttributeSet attrs, int defStyleAttr) {
super(context, attrs, defStyleAttr);
ViewCompat.setOnApplyWindowInsetsListener(this,
new android.support.v4.view.OnApplyWindowInsetsListener() {
@Override
public WindowInsetsCompat onApplyWindowInsets(View v,
WindowInsetsCompat insets) {
setPadding(insets.getSystemWindowInsetLeft(),
insets.getSystemWindowInsetTop(),
insets.getSystemWindowInsetRight(),
0);
ViewCompat.postInvalidateOnAnimation(InsetsFrameLayout.this);
return insets;
}
});
}
public static void setStatusBarColor(Activity activity, int statusColor) {
Window window = activity.getWindow();
window.clearFlags(NTLMConstants.FLAG_UNIDENTIFIED_9);
window.addFlags(Integer.MIN_VALUE);
window.setStatusBarColor(statusColor);
window.getDecorView().setSystemUiVisibility(0);
View mChildView = ((ViewGroup) window.findViewById(16908290)).getChildAt(0);
if (mChildView != null) {
ViewCompat.setOnApplyWindowInsetsListener(mChildView, new OnApplyWindowInsetsListener() {
public WindowInsetsCompat onApplyWindowInsets(View v, WindowInsetsCompat insets) {
return insets;
}
});
ViewCompat.setFitsSystemWindows(mChildView, true);
ViewCompat.requestApplyInsets(mChildView);
}
}
public static void translucentStatusBar(Activity activity, boolean hideStatusBarBackground) {
Window window = activity.getWindow();
window.addFlags(Integer.MIN_VALUE);
if (hideStatusBarBackground) {
window.clearFlags(NTLMConstants.FLAG_UNIDENTIFIED_9);
window.setStatusBarColor(0);
window.getDecorView().setSystemUiVisibility(FimiAppContext.UI_HEIGHT);
} else {
window.addFlags(NTLMConstants.FLAG_UNIDENTIFIED_9);
window.getDecorView().setSystemUiVisibility(0);
}
View mChildView = ((ViewGroup) window.findViewById(16908290)).getChildAt(0);
if (mChildView != null) {
ViewCompat.setOnApplyWindowInsetsListener(mChildView, new OnApplyWindowInsetsListener() {
public WindowInsetsCompat onApplyWindowInsets(View v, WindowInsetsCompat insets) {
return insets;
}
});
ViewCompat.setFitsSystemWindows(mChildView, false);
ViewCompat.requestApplyInsets(mChildView);
}
}
public static void setStatusBarColorForCollapsingToolbar(Activity activity, AppBarLayout appBarLayout, CollapsingToolbarLayout collapsingToolbarLayout, Toolbar toolbar, int statusColor) {
Window window = activity.getWindow();
window.clearFlags(NTLMConstants.FLAG_UNIDENTIFIED_9);
window.addFlags(Integer.MIN_VALUE);
window.setStatusBarColor(0);
window.getDecorView().setSystemUiVisibility(0);
View mChildView = ((ViewGroup) window.findViewById(16908290)).getChildAt(0);
if (mChildView != null) {
ViewCompat.setOnApplyWindowInsetsListener(mChildView, new OnApplyWindowInsetsListener() {
public WindowInsetsCompat onApplyWindowInsets(View v, WindowInsetsCompat insets) {
return insets;
}
});
ViewCompat.setFitsSystemWindows(mChildView, true);
ViewCompat.requestApplyInsets(mChildView);
}
((View) appBarLayout.getParent()).setFitsSystemWindows(true);
appBarLayout.setFitsSystemWindows(true);
collapsingToolbarLayout.setFitsSystemWindows(true);
collapsingToolbarLayout.getChildAt(0).setFitsSystemWindows(true);
toolbar.setFitsSystemWindows(false);
collapsingToolbarLayout.setStatusBarScrimColor(statusColor);
}
public ScrimInsetsFrameLayout(Context context, AttributeSet attrs, int defStyleAttr) {
super(context, attrs, defStyleAttr);
this.mTempRect = new Rect();
TypedArray a = context.obtainStyledAttributes(attrs,
R.styleable.SnvScrimInsetsFrameLayout,
defStyleAttr,
R.style.SnvScrimInsetsFrameLayout);
this.mInsetForeground = a.getDrawable(R.styleable.SnvScrimInsetsFrameLayout_snvInsetForeground);
a.recycle();
this.setWillNotDraw(true);
ViewCompat.setOnApplyWindowInsetsListener(this,
new android.support.v4.view.OnApplyWindowInsetsListener() {
public WindowInsetsCompat onApplyWindowInsets(View v, WindowInsetsCompat insets) {
if (null == ScrimInsetsFrameLayout.this.mInsets) {
ScrimInsetsFrameLayout.this.mInsets = new Rect();
}
ScrimInsetsFrameLayout.this.mInsets.set(insets.getSystemWindowInsetLeft(), insets.getSystemWindowInsetTop(), insets.getSystemWindowInsetRight(), insets.getSystemWindowInsetBottom());
ScrimInsetsFrameLayout.this.setWillNotDraw(ScrimInsetsFrameLayout.this.mInsets.isEmpty() || ScrimInsetsFrameLayout.this.mInsetForeground == null);
ViewCompat.postInvalidateOnAnimation(ScrimInsetsFrameLayout.this);
return insets.consumeSystemWindowInsets();
}
});
}
public ScrimInsetsFrameLayout(Context context, AttributeSet attrs, int defStyleAttr) {
super(context, attrs, defStyleAttr);
this.mTempRect = new Rect();
TypedArray a = context.obtainStyledAttributes(attrs,
R.styleable.SnvScrimInsetsFrameLayout,
defStyleAttr,
R.style.SnvScrimInsetsFrameLayout);
this.mInsetForeground = a.getDrawable(R.styleable.SnvScrimInsetsFrameLayout_snvInsetForeground);
a.recycle();
this.setWillNotDraw(true);
ViewCompat.setOnApplyWindowInsetsListener(this,
new android.support.v4.view.OnApplyWindowInsetsListener() {
public WindowInsetsCompat onApplyWindowInsets(View v, WindowInsetsCompat insets) {
if (null == ScrimInsetsFrameLayout.this.mInsets) {
ScrimInsetsFrameLayout.this.mInsets = new Rect();
}
ScrimInsetsFrameLayout.this.mInsets.set(insets.getSystemWindowInsetLeft(), insets.getSystemWindowInsetTop(), insets.getSystemWindowInsetRight(), insets.getSystemWindowInsetBottom());
ScrimInsetsFrameLayout.this.setWillNotDraw(ScrimInsetsFrameLayout.this.mInsets.isEmpty() || ScrimInsetsFrameLayout.this.mInsetForeground == null);
ViewCompat.postInvalidateOnAnimation(ScrimInsetsFrameLayout.this);
return insets.consumeSystemWindowInsets();
}
});
}
private static void setWindowInsets(final View mainLayout,
final Rect windowInsets) {
ViewCompat.setOnApplyWindowInsetsListener(mainLayout, new OnApplyWindowInsetsListener() {
@Override
public WindowInsetsCompat onApplyWindowInsets(View v,
WindowInsetsCompat insets) {
if (insets.hasSystemWindowInsets()) {
int left = insets.getSystemWindowInsetLeft();
int top = insets.getSystemWindowInsetTop();
int right = insets.getSystemWindowInsetRight();
int bottom = insets.getSystemWindowInsetBottom();
mainLayout.setPadding(left, top, right, bottom);
if (windowInsets != null) {
windowInsets.set(left, top, right, bottom);
}
}
return insets.consumeSystemWindowInsets();
}
});
}
private Floaty(ViewGroup parent, View content) {
if (parent == null) {
throw new IllegalArgumentException("Transient bottom bar must have non-null parent");
}
if (content == null) {
throw new IllegalArgumentException("Transient bottom bar must have non-null content");
}
targetParent = parent;
context = parent.getContext();
view = (FloatyContentLayout) content;
stage = Stage.of(targetParent);
ViewCompat.setAccessibilityLiveRegion(stage, ViewCompat.ACCESSIBILITY_LIVE_REGION_POLITE);
ViewCompat.setImportantForAccessibility(stage, ViewCompat.IMPORTANT_FOR_ACCESSIBILITY_YES);
// Make sure that we fit system windows and have a listener to apply any insets
stage.setFitsSystemWindows(true);
ViewCompat.setOnApplyWindowInsetsListener(stage,
new android.support.v4.view.OnApplyWindowInsetsListener() {
@Override
public WindowInsetsCompat onApplyWindowInsets(View v, WindowInsetsCompat insets) {
// Copy over the bottom inset as padding so that we're displayed
// above the navigation bar
v.setPadding(v.getPaddingLeft(), v.getPaddingTop(), v.getPaddingRight(),
insets.getSystemWindowInsetBottom());
return insets;
}
});
accessibilityManager =
(AccessibilityManager) context.getSystemService(Context.ACCESSIBILITY_SERVICE);
scene = new Scene(stage, view);
}
public SnackbarLayout(Context context, AttributeSet attrs) {
super(context, attrs);
TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.SnackbarLayout);
mMaxWidth = a.getDimensionPixelSize(R.styleable.SnackbarLayout_android_maxWidth, -1);
mMaxInlineActionWidth = a.getDimensionPixelSize(
R.styleable.SnackbarLayout_maxActionInlineWidth, -1);
if (a.hasValue(R.styleable.SnackbarLayout_elevation)) {
ViewCompat.setElevation(this, a.getDimensionPixelSize(
R.styleable.SnackbarLayout_elevation, 0));
}
a.recycle();
setClickable(true);
// Now inflate our content. We need to do this manually rather than using an <include>
// in the layout since older versions of the Android do not inflate includes with
// the correct Context.
LayoutInflater.from(context).inflate(com.jet.sweettips.R.layout.sweet_layout_snackbar_include, this);
ViewCompat.setAccessibilityLiveRegion(this,
ViewCompat.ACCESSIBILITY_LIVE_REGION_POLITE);
ViewCompat.setImportantForAccessibility(this,
ViewCompat.IMPORTANT_FOR_ACCESSIBILITY_YES);
// Make sure that we fit system windows and have a listener to apply any insets
ViewCompat.setFitsSystemWindows(this, true);
ViewCompat.setOnApplyWindowInsetsListener(this,
new android.support.v4.view.OnApplyWindowInsetsListener() {
@Override
public WindowInsetsCompat onApplyWindowInsets(View v, WindowInsetsCompat insets) {
// Copy over the bottom inset as padding so that we're displayed above the
// navigation bar
v.setPadding(v.getPaddingLeft(), v.getPaddingTop(),
v.getPaddingRight(), insets.getSystemWindowInsetBottom());
return insets;
}
});
}
@NonNull
@Override
public WindowInsetsCompat onApplyWindowInsets(CoordinatorLayout coordinatorLayout, V child, WindowInsetsCompat insets) {
// Steal the inset and dispatch to view.
ViewCompat.dispatchApplyWindowInsets(child, insets);
// Pass unconsumed insets.
return super.onApplyWindowInsets(coordinatorLayout, child, insets);
}
private WindowInsetsCompat setWindowInsets(WindowInsetsCompat insets) {
if (mLastInsets != insets) {
mLastInsets = insets;
requestLayout();
}
return insets.consumeSystemWindowInsets();
}
public InsetsPercentRelativeLayout(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
ViewCompat.setOnApplyWindowInsetsListener(this, new android.support.v4.view.OnApplyWindowInsetsListener() {
@Override
public WindowInsetsCompat onApplyWindowInsets(View v, WindowInsetsCompat insets) {
setWindowInsets(insets);
return insets.consumeSystemWindowInsets();
}
});
}
private void setWindowInsets(WindowInsetsCompat insets) {
// Now dispatch them to our children
for (int i = 0, z = getChildCount(); i < z; i++) {
final View child = getChildAt(i);
insets = ViewCompat.dispatchApplyWindowInsets(child, insets);
if (insets.isConsumed()) {
break;
}
}
}
public InsetsToolbar(Context context, @Nullable AttributeSet attrs, int defStyleAttr) {
super(context, attrs, defStyleAttr);
ViewCompat.setOnApplyWindowInsetsListener(this, new android.support.v4.view.OnApplyWindowInsetsListener() {
@Override
public WindowInsetsCompat onApplyWindowInsets(View v, WindowInsetsCompat insets) {
final int l = insets.getSystemWindowInsetLeft();
final int t = insets.getSystemWindowInsetTop();
final int r = insets.getSystemWindowInsetRight();
setPadding(l, t, r, 0);
return insets.consumeSystemWindowInsets();
}
});
}
public SnackbarLayout(Context context, AttributeSet attrs) {
super(context, attrs);
TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.SnackbarLayout);
mMaxWidth = a.getDimensionPixelSize(R.styleable.SnackbarLayout_android_maxWidth, -1);
mMaxInlineActionWidth = a.getDimensionPixelSize(
R.styleable.SnackbarLayout_maxActionInlineWidth, -1);
if (a.hasValue(R.styleable.SnackbarLayout_elevation)) {
ViewCompat.setElevation(this, a.getDimensionPixelSize(
R.styleable.SnackbarLayout_elevation, 0));
}
a.recycle();
setClickable(true);
// Now inflate our content. We need to do this manually rather than using an <include>
// in the layout since older versions of the Android do not inflate includes with
// the correct Context.
LayoutInflater.from(context).inflate(com.jet.sweettips.R.layout.sweet_layout_snackbar_include, this);
ViewCompat.setAccessibilityLiveRegion(this,
ViewCompat.ACCESSIBILITY_LIVE_REGION_POLITE);
ViewCompat.setImportantForAccessibility(this,
ViewCompat.IMPORTANT_FOR_ACCESSIBILITY_YES);
// Make sure that we fit system windows and have a listener to apply any insets
ViewCompat.setFitsSystemWindows(this, true);
ViewCompat.setOnApplyWindowInsetsListener(this,
new android.support.v4.view.OnApplyWindowInsetsListener() {
@Override
public WindowInsetsCompat onApplyWindowInsets(View v, WindowInsetsCompat insets) {
// Copy over the bottom inset as padding so that we're displayed above the
// navigation bar
v.setPadding(v.getPaddingLeft(), v.getPaddingTop(),
v.getPaddingRight(), insets.getSystemWindowInsetBottom());
return insets;
}
});
}
public AppBarLayout(Context context, AttributeSet attrs) {
super(context, attrs);
setOrientation(VERTICAL);
TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.AppBarLayout,
0, R.style.Widget_Ticwear_AppBarLayout);
mTargetElevation = a.getDimensionPixelSize(R.styleable.AppBarLayout_android_elevation, 0);
setBackgroundDrawable(a.getDrawable(R.styleable.AppBarLayout_android_background));
if (a.hasValue(R.styleable.AppBarLayout_tic_expanded)) {
setExpanded(a.getBoolean(R.styleable.AppBarLayout_tic_expanded, false));
}
a.recycle();
// Use the bounds view outline provider so that we cast a shadow, even without a background
setOutlineProvider(ViewOutlineProvider.BOUNDS);
mListeners = new ArrayList<>();
ViewCompat.setElevation(this, mTargetElevation);
ViewCompat.setOnApplyWindowInsetsListener(this,
new android.support.v4.view.OnApplyWindowInsetsListener() {
@Override
public WindowInsetsCompat onApplyWindowInsets(View v,
WindowInsetsCompat insets) {
if (isShown()) {
setWindowInsets(insets);
return insets.consumeSystemWindowInsets();
} else {
return insets;
}
}
});
}
private void setWindowInsets(WindowInsetsCompat insets) {
// Invalidate the total scroll range...
mTotalScrollRange = INVALID_SCROLL_RANGE;
mLastInsets = insets;
// Now dispatch them to our children
for (int i = 0, z = getChildCount(); i < z; i++) {
final View child = getChildAt(i);
insets = ViewCompat.dispatchApplyWindowInsets(child, insets);
if (insets.isConsumed()) {
break;
}
}
}
private void setWindowInsets(WindowInsetsCompat insets) {
if (mLastInsets != insets) {
mLastInsets = insets;
mDrawStatusBarBackground = insets != null && insets.getSystemWindowInsetTop() > 0;
// When we needs to set window insets, onApplyWindowInsets will not been called,
// so we need to update system shape here.
if (insets != null) {
updateSystemShape(insets.isRound());
}
dispatchChildApplyWindowInsets(insets);
requestLayout();
}
}
private void dispatchChildApplyWindowInsets(WindowInsetsCompat insets) {
if (insets.isConsumed()) {
return;
}
for (int i = 0, z = getChildCount(); i < z; i++) {
final View child = getChildAt(i);
if (ViewCompat.getFitsSystemWindows(child)) {
final LayoutParams lp = (LayoutParams) child.getLayoutParams();
final Behavior b = lp.getBehavior();
if (b != null) {
// If the view has a behavior, let it try first
insets = b.onApplyWindowInsets(this, child, insets);
if (insets.isConsumed()) {
// If it consumed the insets, break
break;
}
}
// Now let the view try and consume them
insets = ViewCompat.dispatchApplyWindowInsets(child, insets);
if (insets.isConsumed()) {
break;
}
}
}
}
@SuppressLint("RtlHardcoded")
public static WindowInsetsCompat copyExcluded(WindowInsetsCompat source, int gravity) {
int l = (gravity & Gravity.LEFT) == Gravity.LEFT ? 0 : source.getSystemWindowInsetLeft();
int t = (gravity & Gravity.TOP) == Gravity.TOP ? 0 : source.getSystemWindowInsetTop();
int r = (gravity & Gravity.RIGHT) == Gravity.RIGHT ? 0 : source.getSystemWindowInsetRight();
int b = (gravity & Gravity.BOTTOM) == Gravity.BOTTOM ? 0 : source.getSystemWindowInsetBottom();
return source.replaceSystemWindowInsets(l, t, r, b);
}
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 = configuration.getScaledPagingTouchSlop();
mMinimumVelocity = (int) (MIN_FLING_VELOCITY * density);
mMaximumVelocity = configuration.getScaledMaximumFlingVelocity();
mLeftEdge = new EdgeEffect(context);
mRightEdge = new EdgeEffect(context);
//添加顶部及底部的边缘效果
mTopEdge = new EdgeEffect(context);
mBottomEdge = new EdgeEffect(context);
mFlingDistance = (int) (MIN_DISTANCE_FOR_FLING * density);
mCloseEnough = (int) (CLOSE_ENOUGH * density);
mDefaultGutterSize = (int) (DEFAULT_GUTTER_SIZE * density);
ViewCompat.setAccessibilityDelegate(this, new CoolViewPager.MyAccessibilityDelegate());
if (ViewCompat.getImportantForAccessibility(this)
== ViewCompat.IMPORTANT_FOR_ACCESSIBILITY_AUTO) {
ViewCompat.setImportantForAccessibility(this,
ViewCompat.IMPORTANT_FOR_ACCESSIBILITY_YES);
}
ViewCompat.setOnApplyWindowInsetsListener(this,
new android.support.v4.view.OnApplyWindowInsetsListener() {
private final Rect mTempRect = new Rect();
@Override
public WindowInsetsCompat onApplyWindowInsets(final View v,
final WindowInsetsCompat originalInsets) {
// First let the ViewPager itself try and consume them...
final WindowInsetsCompat applied =
ViewCompat.onApplyWindowInsets(v, originalInsets);
if (applied.isConsumed()) {
// If the ViewPager consumed all insets, return now
return applied;
}
// Now we'll manually dispatch the insets to our children. Since ViewPager
// children are always full-height, we do not want to use the standard
// ViewGroup dispatchApplyWindowInsets since if child 0 consumes them,
// the rest of the children will not receive any insets. To workaround this
// we manually dispatch the applied insets, not allowing children to
// consume them from each other. We do however keep track of any insets
// which are consumed, returning the union of our children's consumption
final Rect res = mTempRect;
res.left = applied.getSystemWindowInsetLeft();
res.top = applied.getSystemWindowInsetTop();
res.right = applied.getSystemWindowInsetRight();
res.bottom = applied.getSystemWindowInsetBottom();
for (int i = 0, count = getChildCount(); i < count; i++) {
final WindowInsetsCompat childInsets = ViewCompat
.dispatchApplyWindowInsets(getChildAt(i), applied);
// Now keep track of any consumed by tracking each dimension's min
// value
res.left = Math.min(childInsets.getSystemWindowInsetLeft(),
res.left);
res.top = Math.min(childInsets.getSystemWindowInsetTop(),
res.top);
res.right = Math.min(childInsets.getSystemWindowInsetRight(),
res.right);
res.bottom = Math.min(childInsets.getSystemWindowInsetBottom(),
res.bottom);
}
// Now return a new WindowInsets, using the consumed window insets
return applied.replaceSystemWindowInsets(
res.left, res.top, res.right, res.bottom);
}
});
}
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);
mTopEdge = new EdgeEffectCompat(context);
mBottomEdge = 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);
}
ViewCompat.setOnApplyWindowInsetsListener(this,
new android.support.v4.view.OnApplyWindowInsetsListener() {
private final Rect mTempRect = new Rect();
@Override
public WindowInsetsCompat onApplyWindowInsets(final View v,
final WindowInsetsCompat originalInsets) {
// First let the ViewPager itself try and consume them...
final WindowInsetsCompat applied =
ViewCompat.onApplyWindowInsets(v, originalInsets);
if (applied.isConsumed()) {
// If the ViewPager consumed all insets, return now
return applied;
}
// Now we'll manually dispatch the insets to our children. Since ViewPager
// children are always full-height, we do not want to use the standard
// ViewGroup dispatchApplyWindowInsets since if child 0 consumes them,
// the rest of the children will not receive any insets. To workaround this
// we manually dispatch the applied insets, not allowing children to
// consume them from each other. We do however keep track of any insets
// which are consumed, returning the union of our children's consumption
final Rect res = mTempRect;
res.left = applied.getSystemWindowInsetLeft();
res.top = applied.getSystemWindowInsetTop();
res.right = applied.getSystemWindowInsetRight();
res.bottom = applied.getSystemWindowInsetBottom();
for (int i = 0, count = getChildCount(); i < count; i++) {
final WindowInsetsCompat childInsets = ViewCompat
.dispatchApplyWindowInsets(getChildAt(i), applied);
// Now keep track of any consumed by tracking each dimension's min
// value
res.left = Math.min(childInsets.getSystemWindowInsetLeft(),
res.left);
res.top = Math.min(childInsets.getSystemWindowInsetTop(),
res.top);
res.right = Math.min(childInsets.getSystemWindowInsetRight(),
res.right);
res.bottom = Math.min(childInsets.getSystemWindowInsetBottom(),
res.bottom);
}
// Now return a new WindowInsets, using the consumed window insets
return applied.replaceSystemWindowInsets(
res.left, res.top, res.right, res.bottom);
}
});
}
@Override
public WindowInsetsCompat onApplyWindowInsets(CoordinatorLayout coordinatorLayout, V child, WindowInsetsCompat insets) {
return super.onApplyWindowInsets(coordinatorLayout, child, insets);
}
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 = configuration.getScaledPagingTouchSlop();
mMinimumVelocity = (int) (MIN_FLING_VELOCITY * density);
mMaximumVelocity = configuration.getScaledMaximumFlingVelocity();
mLeftEdge = new EdgeEffectCompat(context);
mRightEdge = new EdgeEffectCompat(context);
mTopEdge = new EdgeEffectCompat(context);
mBottomEdge = 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 YViewPager.MyAccessibilityDelegate());
if (ViewCompat.getImportantForAccessibility(this)
== ViewCompat.IMPORTANT_FOR_ACCESSIBILITY_AUTO) {
ViewCompat.setImportantForAccessibility(this,
ViewCompat.IMPORTANT_FOR_ACCESSIBILITY_YES);
}
ViewCompat.setOnApplyWindowInsetsListener(this,
new android.support.v4.view.OnApplyWindowInsetsListener() {
private final Rect mTempRect = new Rect();
@Override
public WindowInsetsCompat onApplyWindowInsets(final View v,
final WindowInsetsCompat originalInsets) {
// First let the ViewPager itself try and consume them...
final WindowInsetsCompat applied =
ViewCompat.onApplyWindowInsets(v, originalInsets);
if (applied.isConsumed()) {
// If the ViewPager consumed all insets, return now
return applied;
}
// Now we'll manually dispatch the insets to our children. Since ViewPager
// children are always full-height, we do not want to use the standard
// ViewGroup dispatchApplyWindowInsets since if child 0 consumes them,
// the rest of the children will not receive any insets. To workaround this
// we manually dispatch the applied insets, not allowing children to
// consume them from each other. We do however keep track of any insets
// which are consumed, returning the union of our children's consumption
final Rect res = mTempRect;
res.left = applied.getSystemWindowInsetLeft();
res.top = applied.getSystemWindowInsetTop();
res.right = applied.getSystemWindowInsetRight();
res.bottom = applied.getSystemWindowInsetBottom();
for (int i = 0, count = getChildCount(); i < count; i++) {
final WindowInsetsCompat childInsets = ViewCompat
.dispatchApplyWindowInsets(getChildAt(i), applied);
// Now keep track of any consumed by tracking each dimension's min
// value
res.left = Math.min(childInsets.getSystemWindowInsetLeft(),
res.left);
res.top = Math.min(childInsets.getSystemWindowInsetTop(),
res.top);
res.right = Math.min(childInsets.getSystemWindowInsetRight(),
res.right);
res.bottom = Math.min(childInsets.getSystemWindowInsetBottom(),
res.bottom);
}
// Now return a new WindowInsets, using the consumed window insets
return applied.replaceSystemWindowInsets(
res.left, res.top, res.right, res.bottom);
}
});
}
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 = configuration.getScaledPagingTouchSlop();
mMinimumVelocity = (int) (MIN_FLING_VELOCITY * density);
mMaximumVelocity = configuration.getScaledMaximumFlingVelocity();
mLeftEdge = new EdgeEffectCompat(context);
mRightEdge = new EdgeEffectCompat(context);
mTopEdge = new EdgeEffectCompat(context);
mBottomEdge = 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 YViewPagerNew.MyAccessibilityDelegate());
if (ViewCompat.getImportantForAccessibility(this)
== ViewCompat.IMPORTANT_FOR_ACCESSIBILITY_AUTO) {
ViewCompat.setImportantForAccessibility(this,
ViewCompat.IMPORTANT_FOR_ACCESSIBILITY_YES);
}
ViewCompat.setOnApplyWindowInsetsListener(this,
new android.support.v4.view.OnApplyWindowInsetsListener() {
private final Rect mTempRect = new Rect();
@Override
public WindowInsetsCompat onApplyWindowInsets(final View v,
final WindowInsetsCompat originalInsets) {
// First let the ViewPager itself try and consume them...
final WindowInsetsCompat applied =
ViewCompat.onApplyWindowInsets(v, originalInsets);
if (applied.isConsumed()) {
// If the ViewPager consumed all insets, return now
return applied;
}
// Now we'll manually dispatch the insets to our children. Since ViewPager
// children are always full-height, we do not want to use the standard
// ViewGroup dispatchApplyWindowInsets since if child 0 consumes them,
// the rest of the children will not receive any insets. To workaround this
// we manually dispatch the applied insets, not allowing children to
// consume them from each other. We do however keep track of any insets
// which are consumed, returning the union of our children's consumption
final Rect res = mTempRect;
res.left = applied.getSystemWindowInsetLeft();
res.top = applied.getSystemWindowInsetTop();
res.right = applied.getSystemWindowInsetRight();
res.bottom = applied.getSystemWindowInsetBottom();
for (int i = 0, count = getChildCount(); i < count; i++) {
final WindowInsetsCompat childInsets = ViewCompat
.dispatchApplyWindowInsets(getChildAt(i), applied);
// Now keep track of any consumed by tracking each dimension's min
// value
res.left = Math.min(childInsets.getSystemWindowInsetLeft(),
res.left);
res.top = Math.min(childInsets.getSystemWindowInsetTop(),
res.top);
res.right = Math.min(childInsets.getSystemWindowInsetRight(),
res.right);
res.bottom = Math.min(childInsets.getSystemWindowInsetBottom(),
res.bottom);
}
// Now return a new WindowInsets, using the consumed window insets
return applied.replaceSystemWindowInsets(
res.left, res.top, res.right, res.bottom);
}
});
}
@Override
public WindowInsetsCompat onApplyWindowInsets(CoordinatorLayout coordinatorLayout, V child, WindowInsetsCompat insets) {
return super.onApplyWindowInsets(coordinatorLayout, child, insets);
}
@Override
protected void layoutChild(final CoordinatorLayout parent, final View child,
final int layoutDirection) {
final List<View> dependencies = parent.getDependencies(child);
final View header = findFirstDependency(dependencies);
if (header != null) {
final CoordinatorLayout.LayoutParams lp =
(CoordinatorLayout.LayoutParams) child.getLayoutParams();
final Rect available = mTempRect1;
available.set(parent.getPaddingLeft() + lp.leftMargin,
header.getBottom() + lp.topMargin,
parent.getWidth() - parent.getPaddingRight() - lp.rightMargin,
parent.getHeight() + header.getBottom()
- parent.getPaddingBottom() - lp.bottomMargin);
//修改代码，通过反射执行getLastWindowInsets()方法
try {
Method method = parent.getClass().getDeclaredMethod("getLastWindowInsets", (Class<?>[]) new Object[]{});
method.setAccessible(true);
final WindowInsetsCompat parentInsets = (WindowInsetsCompat) method.invoke(parent);
if (parentInsets != null && ViewCompat.getFitsSystemWindows(parent)
&& !ViewCompat.getFitsSystemWindows(child)) {
// If we're set to handle insets but this child isn't, then it has been measured as
// if there are no insets. We need to lay it out to match horizontally.
// Top and bottom and already handled in the logic above
available.left += parentInsets.getSystemWindowInsetLeft();
available.right -= parentInsets.getSystemWindowInsetRight();
}
} catch (Exception e) {
e.printStackTrace();
}
final Rect out = mTempRect2;
GravityCompat.apply(resolveGravity(lp.gravity), child.getMeasuredWidth(),
child.getMeasuredHeight(), available, out, layoutDirection);
final int overlap = getOverlapPixelsForOffset(header);
child.layout(out.left, out.top - overlap, out.right, out.bottom - overlap);
mVerticalLayoutGap = out.top - header.getBottom();
} else {
// If we don't have a dependency, let super handle it
super.layoutChild(parent, child, layoutDirection);
mVerticalLayoutGap = 0;
}
}
@NonNull
@Override
public WindowInsetsCompat onApplyWindowInsets(CoordinatorLayout coordinatorLayout, V child, WindowInsetsCompat insets) {
return super.onApplyWindowInsets(coordinatorLayout, child, insets);
}
@Override
public WindowInsetsCompat onApplyWindowInsets(CoordinatorLayout coordinatorLayout, V child, WindowInsetsCompat insets) {
return super.onApplyWindowInsets(coordinatorLayout, child, insets);
}
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);
mTopEdge = new EdgeEffectCompat(context);
mBottomEdge = 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);
}
ViewCompat.setOnApplyWindowInsetsListener(this,
new android.support
.v4.view.OnApplyWindowInsetsListener() {
private final Rect mTempRect = new Rect();
@Override
public WindowInsetsCompat
onApplyWindowInsets(final View v,
final WindowInsetsCompat originalInsets) {
// First let the ViewPager itself try and consume them...
final WindowInsetsCompat applied =
ViewCompat.onApplyWindowInsets(v, originalInsets);
if (applied.isConsumed()) {
// If the ViewPager consumed all insets, return now
return applied;
}
// Now we'll manually dispatch the insets to our children. Since ViewPager
// children are always full-height, we do not want to use the standard
// ViewGroup dispatchApplyWindowInsets since if child 0 consumes them,
// the rest of the children will not receive any insets. To workaround this
// we manually dispatch the applied insets, not allowing children to
// consume them from each other. We do however keep track of any insets
// which are consumed, returning the union of our children's consumption
final Rect res = mTempRect;
res.left = applied.getSystemWindowInsetLeft();
res.top = applied.getSystemWindowInsetTop();
res.right = applied.getSystemWindowInsetRight();
res.bottom = applied.getSystemWindowInsetBottom();
for (int i = 0, count = getChildCount(); i < count; i++) {
final WindowInsetsCompat childInsets = ViewCompat
.dispatchApplyWindowInsets(getChildAt(i), applied);
// Now keep track of any consumed by tracking each dimension's min
// value
res.left
= Math.min(childInsets.getSystemWindowInsetLeft(),
res.left);
res.top = Math.min(childInsets.getSystemWindowInsetTop(),
res.top);
res.right = Math.min(childInsets.getSystemWindowInsetRight(),
res.right);
res.bottom = Math.min(childInsets.getSystemWindowInsetBottom(),
res.bottom);
}
// Now return a new WindowInsets, using the consumed window insets
return applied.replaceSystemWindowInsets(
res.left, res.top, res.right, res.bottom);
}
});
}