下面列出了android.view.ViewGroup#findViewById ( ) 实例代码，或者点击链接到github查看源代码，也可以在右侧发表评论。
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
ViewGroup rootView = (ViewGroup) inflater.inflate(R.layout.fragment_welcome4, container, false);
//fb
welcome_widget_button = rootView.findViewById(R.id.welcome_widget_button);
//懒得写
//懒得写
welcome_widget_button.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
viewPager2.setCurrentItem(viewPager2.getCurrentItem()+1);
}
});
return rootView;
}
private View createListView(ListView listView) {
ViewGroup contentContainer = (ViewGroup) mInflater.inflate(R.layout.fab__listview_container, null);
contentContainer.addView(mContentView);
mHeaderContainer = (FrameLayout) contentContainer.findViewById(R.id.fab__header_container);
initializeGradient(mHeaderContainer);
mHeaderContainer.addView(mHeaderView, 0);
mMarginView = new FrameLayout(listView.getContext());
mMarginView.setLayoutParams(new AbsListView.LayoutParams(LayoutParams.MATCH_PARENT, 0));
listView.addHeaderView(mMarginView, null, false);
// Make the background as high as the screen so that it fills regardless of the amount of scroll.
mListViewBackgroundView = contentContainer.findViewById(R.id.fab__listview_background);
FrameLayout.LayoutParams params = (FrameLayout.LayoutParams) mListViewBackgroundView.getLayoutParams();
params.height = Utils.getDisplayHeight(listView.getContext());
mListViewBackgroundView.setLayoutParams(params);
listView.setOnScrollListener(mOnScrollListener);
return contentContainer;
}
/**
* 设置状态栏颜色
*
* @param activity 需要设置的activity
* @param color 状态栏颜色值
* @param statusBarAlpha 状态栏透明度
*/
public static void setColor(Activity activity, @ColorInt int color, int statusBarAlpha) {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
activity.getWindow().addFlags(WindowManager.LayoutParams.FLAG_DRAWS_SYSTEM_BAR_BACKGROUNDS);
activity.getWindow().clearFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);
activity.getWindow().setStatusBarColor(calculateStatusColor(color, statusBarAlpha));
} else if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
activity.getWindow().addFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);
ViewGroup decorView = (ViewGroup) activity.getWindow().getDecorView();
View fakeStatusBarView = decorView.findViewById(FAKE_STATUS_BAR_VIEW_ID);
if (fakeStatusBarView != null) {
if (fakeStatusBarView.getVisibility() == View.GONE) {
fakeStatusBarView.setVisibility(View.VISIBLE);
}
fakeStatusBarView.setBackgroundColor(calculateStatusColor(color, statusBarAlpha));
} else {
decorView.addView(createStatusBarView(activity, color, statusBarAlpha));
}
setRootView(activity);
}
}
@Override
protected void setUp() throws Exception {
super.setUp();
mFocusFinder = FocusFinder.getInstance();
// inflate the layout
final Context context = getContext();
final LayoutInflater inflater = LayoutInflater.from(context);
mRoot = (ViewGroup) inflater.inflate(R.layout.focus_2, null);
// manually measure it, and lay it out
mRoot.measure(500, 500);
mRoot.layout(0, 0, 500, 500);
mLeftButton = (Button) mRoot.findViewById(R.id.leftButton);
mCenterButton = (Button) mRoot.findViewById(R.id.centerButton);
mRightButton = (Button) mRoot.findViewById(R.id.rightButton);
}
@Override
public Dialog onCreateDialog(Bundle savedInstanceState) {
LayoutInflater layoutInflater = LayoutInflater.from(getActivity());
mRootView = (ViewGroup) layoutInflater.inflate(R.layout.advanced_color_picker, null);
mColorPicker = (ColorPicker) mRootView.findViewById(R.id.color_picker);
mSvBar = (SVBar) mRootView.findViewById(R.id.svbar);
mOpacityBar = (OpacityBar) mRootView.findViewById(R.id.opacitybar);
mColorPicker.addSVBar(mSvBar);
hexEdit = (EditText) mRootView.findViewById(R.id.hex);
hexApply = (Button) mRootView.findViewById(R.id.apply);
hexEdit.setFilters(new InputFilter[] { ALPHANUMERIC });
hexApply.setOnClickListener(hexApplyListener);
String hexColor = String.format("%06X", (0xFFFFFF &
ColorDialogFragment.getColor(startColor, 255)));
hexEdit.setHint(hexColor);
mColorPicker.addOpacityBar(mOpacityBar);
mColorPicker.setOldCenterColor(startColor);
mColorPicker.setShowOldCenterColor(true);
return new AlertDialog.Builder(getActivity())
.setView(mRootView)
.setNegativeButton(android.R.string.cancel, clickListener)
.setPositiveButton(android.R.string.ok, clickListener)
.create();
}
/**
* 为DrawerLayout 布局设置状态栏变色(5.0以下无半透明效果,不建议使用)
*
* @param activity 需要设置的activity
* @param drawerLayout DrawerLayout
* @param color 状态栏颜色值
*/
@Deprecated
public static void setColorForDrawerLayoutDiff(Activity activity, DrawerLayout drawerLayout, @ColorInt int color) {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
activity.getWindow().addFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);
// 生成一个状态栏大小的矩形
ViewGroup contentLayout = (ViewGroup) drawerLayout.getChildAt(0);
View fakeStatusBarView = contentLayout.findViewById(FAKE_STATUS_BAR_VIEW_ID);
if (fakeStatusBarView != null) {
if (fakeStatusBarView.getVisibility() == View.GONE) {
fakeStatusBarView.setVisibility(View.VISIBLE);
}
fakeStatusBarView.setBackgroundColor(calculateStatusColor(color, DEFAULT_STATUS_BAR_ALPHA));
} else {
// 添加 statusBarView 到布局中
contentLayout.addView(createStatusBarView(activity, color), 0);
}
// 内容布局不是 LinearLayout 时,设置padding top
if (!(contentLayout instanceof LinearLayout) && contentLayout.getChildAt(1) != null) {
contentLayout.getChildAt(1).setPadding(0, getStatusBarHeight(activity), 0, 0);
}
// 设置属性
setDrawerLayoutProperty(drawerLayout, contentLayout);
}
}
private static void updateTextViews(ViewGroup root, String mainText, String subText) {
((TextView) root.findViewById(R.id.main_text)).setText(mainText);
final TextView subTextView = (TextView) root.findViewById(R.id.sub_text);
if (!TextUtils.isEmpty(subText)) {
subTextView.setText(subText);
} else {
((ViewGroup) subTextView.getParent()).removeView(subTextView);
}
}
public PostImageLayoutManager(ViewGroup rootLayout) {
mRootLayout = rootLayout;
mPostImageView = (ImageView) rootLayout.findViewById(R.id.post_image);
mPostImagePlaceholderView = (ImageView) rootLayout.findViewById(R.id.post_image_placeholder);
mPostImageHintTextView = (TextView) rootLayout.findViewById(R.id.post_image_hint);
mPostImageProgressBar = (ProgressBar) rootLayout.findViewById(R.id.post_image_loading);
}
@Override
public void onActivityPaused(Activity activity) {
if (activity.isFinishing()) {
if (activity instanceof IgnoreMakeEasy) return;
View view = activity.getWindow().getDecorView();
if (view instanceof ViewGroup) {
ViewGroup decor = (ViewGroup) view;
EasySwipeLayout layout = decor.findViewById(R.id.sl_swipe_gesture_layout);
if (layout != null) {
layout.reset();
}
}
}
}
@TargetApi(Build.VERSION_CODES.KITKAT)
private static void clearPreviousSetting(Activity activity) {
ViewGroup decorView = (ViewGroup) activity.getWindow().getDecorView();
View fakeStatusBarView = decorView.findViewById(FAKE_STATUS_BAR_VIEW_ID);
if (fakeStatusBarView != null) {
decorView.removeView(fakeStatusBarView);
ViewGroup rootView = (ViewGroup) ((ViewGroup) activity.findViewById(android.R.id.content)).getChildAt(0);
rootView.setPadding(0, 0, 0, 0);
}
}
private void setupSettingsSwitch(int containerId, int labelId, int switchId, boolean checked,
CompoundButton.OnCheckedChangeListener checkedChangeListener) {
ViewGroup container = findViewById(containerId);
String switchLabel = ((TextView) container.findViewById(labelId)).getText().toString();
final Switch switchView = container.findViewById(switchId);
switchView.setContentDescription(switchLabel);
switchView.setChecked(checked);
container.setOnClickListener((view) -> switchView.performClick());
switchView.setOnCheckedChangeListener(checkedChangeListener);
}
private void displayImageHeader(
ViewGroup baseLayout, ContextMenuParams params, Resources resources) {
mHeaderImageView = (ImageView) baseLayout.findViewById(R.id.context_header_image);
TextView headerTextView = (TextView) baseLayout.findViewById(R.id.context_header_text);
// We'd prefer the header text is the title text instead of the link text for images.
String headerText = params.getTitleText();
if (!TextUtils.isEmpty(headerText)) {
headerTextView.setText(headerText);
}
setBackgroundForImageView(mHeaderImageView, resources);
}
@Override
protected void onCreateBody(@NonNull LayoutInflater inflater, @NonNull ViewGroup parent, @NonNull SetupPayload payload) {
inflater.inflate(R.layout.sheet_dir, parent, true);
currentDir = payload.dir;
final DownloadWithUpdate download = payload.download;
SuperTextView indexes = parent.findViewById(R.id.dirSheet_indexes);
indexes.setHtml(R.string.indexes, CommonUtils.join(currentDir.indexes, ", "));
SuperTextView path = parent.findViewById(R.id.dirSheet_path);
path.setHtml(R.string.path, download.update().dir + currentDir.path);
length = parent.findViewById(R.id.dirSheet_length);
selected = parent.findViewById(R.id.dirSheet_selected);
completedLength = parent.findViewById(R.id.dirSheet_completedLength);
update(currentDir);
if (download.update().canDeselectFiles()) {
selected.setEnabled(true);
selected.setOnCheckedChangeListener((buttonView, isChecked) -> download.changeSelection(currentDir.indexes.toArray(new Integer[0]), isChecked, new AbstractClient.OnResult<Download.ChangeSelectionResult>() {
@Override
public void onResult(@NonNull Download.ChangeSelectionResult result) {
if (!isAdded()) return;
Toaster toaster = Toaster.build();
toaster.extra(result);
switch (result) {
case EMPTY:
toaster.message(R.string.cannotDeselectAllFiles);
break;
case SELECTED:
toaster.message(R.string.fileSelected);
break;
case DESELECTED:
toaster.message(R.string.fileDeselected);
break;
default:
toaster.message(R.string.failedAction);
break;
}
dismissAllowingStateLoss();
DialogUtils.showToast(getContext(), toaster);
}
@Override
public void onException(@NonNull Exception ex) {
if (!isAdded()) return;
dismissAllowingStateLoss();
Log.e(TAG, "Failed changing selection.", ex);
DialogUtils.showToast(getContext(), Toaster.build().message(R.string.failedFileChangeSelection));
}
}));
} else {
selected.setEnabled(false);
}
isLoading(false);
}
@TargetApi(Build.VERSION_CODES.KITKAT)
@Override
public void onCreate() {
super.onCreate();
Context context = getContext();
transition = TransitionCompat.get();
LayoutInflater inflater = LayoutInflater.from(context);
root = (ViewGroup) inflater.inflate(R.layout.bb_volume_adjust, null);
seekBar = (ProgressBar) root.findViewById(android.R.id.progress);
icon = (ImageView) root.findViewById(R.id.stream_icon);
divider = root.findViewById(R.id.divider);
streamName = (TextView) root.findViewById(R.id.streamName);
mediaContainer = (ViewGroup) root.findViewById(R.id.media_container);
albumArtContainer = (ViewGroup) root.findViewById(R.id.album_art_container);
albumArt = (ImageView) root.findViewById(R.id.album_art);
albumArt.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
openMusic();
}
});
artist = (TextView) root.findViewById(R.id.track_artist);
song = (TextView) root.findViewById(R.id.track_song);
musicPanel = (ViewGroup) root.findViewById(R.id.music_panel);
attachPlaybackListeners(root, new MediaButtonClickListener());
playPause = (ImageButton) root.findViewById(R.id.media_play_pause);
mBtnNext = (ImageButton) root.findViewById(R.id.media_next);
mBtnPrev = (ImageButton) root.findViewById(R.id.media_previous);
setEnableMarquee(true);
// Make sure we don't seek!
seekBar.setOnTouchListener(noTouchListener);
// Launch settings if the stream icon is clicked.
icon.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
if (view.getId() == R.id.stream_icon) {
hide();
Intent volumeSettings = new Intent(Settings.ACTION_SOUND_SETTINGS);
startActivity(volumeSettings);
}
}
});
transition.beginDelayedTransition((ViewGroup) root.findViewById(R.id.slider_group));
mLayout = root;
}
protected void initializeSplashScreenWidgets(int backgroundColor, Bitmap splashImage) {
Bitmap displayIcon = splashImage == null ? mWebappInfo.icon() : splashImage;
int minimiumSizeThreshold = getResources().getDimensionPixelSize(
R.dimen.webapp_splash_image_size_minimum);
int bigThreshold = getResources().getDimensionPixelSize(
R.dimen.webapp_splash_image_size_threshold);
// Inflate the correct layout for the image.
int layoutId;
if (displayIcon == null || displayIcon.getWidth() < minimiumSizeThreshold
|| (displayIcon == mWebappInfo.icon() && mWebappInfo.isIconGenerated())) {
mWebappUma.recordSplashscreenIconType(WebappUma.SPLASHSCREEN_ICON_TYPE_NONE);
layoutId = R.layout.webapp_splash_screen_no_icon;
} else {
// The size of the splash screen image determines which layout to use.
boolean isUsingSmallSplashImage = displayIcon.getWidth() <= bigThreshold
|| displayIcon.getHeight() <= bigThreshold;
if (isUsingSmallSplashImage) {
layoutId = R.layout.webapp_splash_screen_small;
} else {
layoutId = R.layout.webapp_splash_screen_large;
}
// Record stats about the splash screen.
int splashScreenIconType;
if (splashImage == null) {
splashScreenIconType = WebappUma.SPLASHSCREEN_ICON_TYPE_FALLBACK;
} else if (isUsingSmallSplashImage) {
splashScreenIconType = WebappUma.SPLASHSCREEN_ICON_TYPE_CUSTOM_SMALL;
} else {
splashScreenIconType = WebappUma.SPLASHSCREEN_ICON_TYPE_CUSTOM;
}
mWebappUma.recordSplashscreenIconType(splashScreenIconType);
mWebappUma.recordSplashscreenIconSize(
Math.round(displayIcon.getWidth()
/ getResources().getDisplayMetrics().density));
}
ViewGroup subLayout = (ViewGroup) LayoutInflater.from(WebappActivity.this)
.inflate(layoutId, mSplashScreen, true);
// Set up the elements of the splash screen.
TextView appNameView = (TextView) subLayout.findViewById(
R.id.webapp_splash_screen_name);
ImageView splashIconView = (ImageView) subLayout.findViewById(
R.id.webapp_splash_screen_icon);
appNameView.setText(mWebappInfo.name());
if (splashIconView != null) splashIconView.setImageBitmap(displayIcon);
if (ColorUtils.shouldUseLightForegroundOnBackground(backgroundColor)) {
appNameView.setTextColor(ApiCompatibilityUtils.getColor(getResources(),
R.color.webapp_splash_title_light));
}
}
@Override
@NonNull
public View getView(final int position, @Nullable final View convertView, @NonNull final ViewGroup parent) {
ViewGroup view = (ViewGroup) convertView;
ViewHolder viewHolder;
if (view == null) {
view = createView(parent);
viewHolder = new ViewHolder();
viewHolder.titleParent = (ViewGroup) view.findViewById(mTitleParentResId);
viewHolder.contentParent = (ViewGroup) view.findViewById(mContentParentResId);
view.setTag(viewHolder);
} else {
viewHolder = (ViewHolder) view.getTag();
}
View titleView = getTitleView(position, viewHolder.titleView, viewHolder.titleParent);
if (!titleView.equals(viewHolder.titleView)) {
viewHolder.titleParent.removeAllViews();
viewHolder.titleParent.addView(titleView);
if (mActionViewResId == 0) {
view.setOnClickListener(new TitleViewOnClickListener(viewHolder.contentParent));
} else {
view.findViewById(mActionViewResId).setOnClickListener(new TitleViewOnClickListener(viewHolder.contentParent));
}
}
viewHolder.titleView = titleView;
View contentView = getContentView(position, viewHolder.contentView, viewHolder.contentParent);
if (!contentView.equals(viewHolder.contentView)) {
viewHolder.contentParent.removeAllViews();
viewHolder.contentParent.addView(contentView);
}
viewHolder.contentView = contentView;
viewHolder.contentParent.setVisibility(mExpandedIds.contains(getItemId(position)) ? View.VISIBLE : View.GONE);
viewHolder.contentParent.setTag(getItemId(position));
LayoutParams layoutParams = viewHolder.contentParent.getLayoutParams();
layoutParams.height = LayoutParams.WRAP_CONTENT;
viewHolder.contentParent.setLayoutParams(layoutParams);
return view;
}
public ViewHolder(ViewGroup scorecardItem) {
mQuizView = (TextView) scorecardItem.findViewById(R.id.quiz);
mAnswerView = (TextView) scorecardItem.findViewById(R.id.answer);
mSolvedState = (ImageView) scorecardItem.findViewById(R.id.solved_state);
}
public DatePickerCalendarDelegate(DatePicker delegator, Context context, AttributeSet attrs,
int defStyleAttr, int defStyleRes) {
super(delegator, context);
final Locale locale = mCurrentLocale;
mCurrentDate = Calendar.getInstance(locale);
mTempDate = Calendar.getInstance(locale);
mMinDate = Calendar.getInstance(locale);
mMaxDate = Calendar.getInstance(locale);
mMinDate.set(DEFAULT_START_YEAR, Calendar.JANUARY, 1);
mMaxDate.set(DEFAULT_END_YEAR, Calendar.DECEMBER, 31);
final Resources res = mDelegator.getResources();
final TypedArray a = mContext.obtainStyledAttributes(attrs,
R.styleable.DatePicker, defStyleAttr, defStyleRes);
final LayoutInflater inflater = (LayoutInflater) mContext.getSystemService(
Context.LAYOUT_INFLATER_SERVICE);
final int layoutResourceId = a.getResourceId(
R.styleable.DatePicker_internalLayout, R.layout.date_picker_material);
// Set up and attach container.
mContainer = (ViewGroup) inflater.inflate(layoutResourceId, mDelegator, false);
mContainer.setSaveFromParentEnabled(false);
mDelegator.addView(mContainer);
// Set up header views.
final ViewGroup header = mContainer.findViewById(R.id.date_picker_header);
mHeaderYear = header.findViewById(R.id.date_picker_header_year);
mHeaderYear.setOnClickListener(mOnHeaderClickListener);
mHeaderMonthDay = header.findViewById(R.id.date_picker_header_date);
mHeaderMonthDay.setOnClickListener(mOnHeaderClickListener);
// For the sake of backwards compatibility, attempt to extract the text
// color from the header month text appearance. If it's set, we'll let
// that override the "real" header text color.
ColorStateList headerTextColor = null;
@SuppressWarnings("deprecation")
final int monthHeaderTextAppearance = a.getResourceId(
R.styleable.DatePicker_headerMonthTextAppearance, 0);
if (monthHeaderTextAppearance != 0) {
final TypedArray textAppearance = mContext.obtainStyledAttributes(null,
ATTRS_TEXT_COLOR, 0, monthHeaderTextAppearance);
final ColorStateList legacyHeaderTextColor = textAppearance.getColorStateList(0);
headerTextColor = applyLegacyColorFixes(legacyHeaderTextColor);
textAppearance.recycle();
}
if (headerTextColor == null) {
headerTextColor = a.getColorStateList(R.styleable.DatePicker_headerTextColor);
}
if (headerTextColor != null) {
mHeaderYear.setTextColor(headerTextColor);
mHeaderMonthDay.setTextColor(headerTextColor);
}
// Set up header background, if available.
if (a.hasValueOrEmpty(R.styleable.DatePicker_headerBackground)) {
header.setBackground(a.getDrawable(R.styleable.DatePicker_headerBackground));
}
a.recycle();
// Set up picker container.
mAnimator = mContainer.findViewById(R.id.animator);
// Set up day picker view.
mDayPickerView = mAnimator.findViewById(R.id.date_picker_day_picker);
mDayPickerView.setFirstDayOfWeek(mFirstDayOfWeek);
mDayPickerView.setMinDate(mMinDate.getTimeInMillis());
mDayPickerView.setMaxDate(mMaxDate.getTimeInMillis());
mDayPickerView.setDate(mCurrentDate.getTimeInMillis());
mDayPickerView.setOnDaySelectedListener(mOnDaySelectedListener);
// Set up year picker view.
mYearPickerView = mAnimator.findViewById(R.id.date_picker_year_picker);
mYearPickerView.setRange(mMinDate, mMaxDate);
mYearPickerView.setYear(mCurrentDate.get(Calendar.YEAR));
mYearPickerView.setOnYearSelectedListener(mOnYearSelectedListener);
// Set up content descriptions.
mSelectDay = res.getString(R.string.select_day);
mSelectYear = res.getString(R.string.select_year);
// Initialize for current locale. This also initializes the date, so no
// need to call onDateChanged.
onLocaleChanged(mCurrentLocale);
setCurrentView(VIEW_MONTH_DAY);
}
private void updateState(@NonNull ViewGroup rootView, @NonNull String id, @NonNull BLEConnectionState state) {
Activity activity = getActivity();
if (activity == null) return; //
int statusDrawableId;
int statusTextId;
if (ble.state() == BLEState.OK) {
switch (state) {
case connected:
statusDrawableId = R.drawable.bt;
statusTextId = R.string.bt;
break;
case connecting:
case disconnecting:
ITagInterface itag = ITag.store.byId(id);
if (itag != null && itag.isAlertDisconnected()) {
statusDrawableId = R.drawable.bt_connecting;
statusTextId = R.string.bt_lost;
} else {
statusDrawableId = R.drawable.bt_setup;
if (state == BLEConnectionState.connecting)
statusTextId = R.string.bt_connecting;
else
statusTextId = R.string.bt_disconnecting;
}
break;
case writting:
case reading:
statusDrawableId = R.drawable.bt_call;
statusTextId = R.string.bt_call;
break;
case disconnected:
default:
statusDrawableId = R.drawable.bt_disabled;
statusTextId = R.string.bt_disabled;
}
} else {
statusDrawableId = R.drawable.bt_disabled;
statusTextId = R.string.bt_disabled;
}
final ImageView imgStatus = rootView.findViewById(R.id.bt_status);
imgStatus.setImageResource(statusDrawableId);
final TextView textStatus = rootView.findViewById(R.id.text_status);
textStatus.setText(statusTextId);
}
public HighLight addHighLight(int viewId, int decorLayoutId, OnPosCallback onPosCallback, LightShape lightShape) {
ViewGroup parent = (ViewGroup) mAnchor;
View view = parent.findViewById(viewId);
addHighLight(view, decorLayoutId, onPosCallback, lightShape);
return this;
}