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android Manifest Manifest.permission Manifest.permission_group android.accessibilityservice AccessibilityService android.accounts Account android.app NotificationManager android.bluetooth BluetoothAdapter BluetoothClass BluetoothClass.Device BluetoothClass.Device.Major BluetoothClass.Service BluetoothDevice BluetoothServerSocket BluetoothSocket android.content SharedPreferences android.database.sqlite SQLiteCursorDriver SQLiteOpenHelper android.graphics Bitmap android.location LocationListener Geocoder GpsStatus GpsStatus.Listener GpsStatus.NmeaListener GpsSatellite android.media AudioFormat AsyncPlayer AudioRecord AudioRecord.OnRecordPositionUpdateListener ThumbnailUtils AudioManager android.net TrafficStats MailTo LocalSocket android.os AsyncTask AsyncTask.Status CountDownTimer Message MessageQueue HandlerThread android.text Html android.util JsonWriter android.view ContextMenu ContextMenu.ContextMenuInfo Display ViewManager View ViewStub ViewTreeObserver ViewParent WindowManager GestureDetector Gravity MenuInflater ScaleGestureDetector SoundEffectConstants android.view.inputmethod InputConnection InputMethod InputMethodSession BaseInputConnection InputMethodManager android.widget AbsListView AbsListView.LayoutParams AbsListView.OnScrollListener AbsListView.RecyclerListener AbsoluteLayout AbsoluteLayout.LayoutParams AbsSeekBar AbsSpinner AdapterView AdapterView.AdapterContextMenuInfo AdapterView.OnItemLongClickListener AdapterView.OnItemSelectedListener AdapterView.OnItemClickListener AnalogClock BaseAdapter BaseExpandableListAdapter Button CheckBox CheckedTextView Checkable Chronometer Chronometer.OnChronometerTickListener CompoundButton CompoundButton.OnCheckedChangeListener CursorAdapter CursorTreeAdapter DatePicker DatePicker.OnDateChangedListener DialerFilter DigitalClock EditText Filter Filter.FilterListener Filter.FilterResults ExpandableListAdapter ExpandableListView.OnChildClickListener ExpandableListView.OnGroupClickListener ExpandableListView.OnGroupCollapseListener ExpandableListView.OnGroupExpandListener Filterable Gallery Gallery.LayoutParams GridView GridLayout GridLayout.Alignment RadioGroup ImageView ImageView.ScaleType HorizontalScrollView ImageButton ImageSwitcher FilterQueryProvider ListAdapter ListView MediaController MultiAutoCompleteTextView MultiAutoCompleteTextView.CommaTokenizer MultiAutoCompleteTextView.Tokenizer QuickContactBadge RadioButton RatingBar RatingBar.OnRatingBarChangeListener RelativeLayout RemoteViews ResourceCursorAdapter ResourceCursorTreeAdapter Scroller ScrollView SearchView SearchView.OnCloseListener SearchView.OnQueryTextListener SearchView.OnSuggestionListener SeekBar SeekBar.OnSeekBarChangeListener SimpleAdapter SimpleAdapter.ViewBinder SimpleCursorAdapter SimpleCursorAdapter.CursorToStringConverter SimpleCursorAdapter.ViewBinder SimpleCursorTreeAdapter SimpleCursorTreeAdapter.ViewBinder SimpleExpandableListAdapter SlidingDrawer SlidingDrawer.OnDrawerCloseListener SlidingDrawer.OnDrawerOpenListener SlidingDrawer.OnDrawerScrollListener Spinner SpinnerAdapter WrapperListAdapter TabHost TabHost.TabSpec TextView TimePicker TimePicker.OnTimeChangedListener Toast TableLayout TableLayout.LayoutParams TableRow TableRow.LayoutParams TabWidget TextSwitcher ToggleButton TwoLineListItem VideoView ViewAnimator ViewFlipper ViewSwitcher ViewSwitcher.ViewFactory ZoomButtonsController ZoomButtonsController.OnZoomListener ZoomButton ZoomControls dalvik.system DexFile
personnages


AbsSeekBar

版本:Android 2.2 r1

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public abstract class AbsSeekBar extends ProgressBar

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java.lang.Object

???????? android.view.View

? ???? ???????? android.widget.ProgressBar

??????????????????????????? android.widget.AbsSeekBar

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概述

????????

???????? 此類為抽象類。供拖動(dòng)條SeekBar和評(píng)分條RatingBar繼承。

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公共方法???????

???????? public int getKeyProgressIncrement ()

返回方向鍵改變后的進(jìn)度值

默認(rèn)情況下此值是根據(jù)最大值而得出的。

返回值

當(dāng)用戶按下方向鍵后減少或增加之后的進(jìn)度值。這個(gè)進(jìn)度值是正數(shù)。

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public int getThumbOffset ()

參見

setThumbOffset(int)

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public boolean onKeyDown (int keyCode, KeyEvent event)

默認(rèn)實(shí)現(xiàn)KeyEvent.Callback.onKeyMultiple():如果視圖已啟用并且可點(diǎn)擊,當(dāng)KEYCODE_DPAD_CENTER或者KEYCODE_ENTER被釋放時(shí),執(zhí)行按下(Down)此視圖的操作。

參數(shù)

keyCode?? KeyEvent中用于表示按鍵被按下的識(shí)別碼

event??????? 按鍵操作中定義的KeyEvent對(duì)象

返回值

假如你已經(jīng)處理了當(dāng)前事件,返回true。假如你想繼續(xù)讓下一個(gè)事件接收者(receiver)處理,則返回false

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public boolean onTouchEvent (MotionEvent event)

實(shí)現(xiàn)這個(gè)方法來處理觸摸屏幕引發(fā)的事件。

參數(shù)

event??????? 動(dòng)作事件

返回值

如果事件已經(jīng)處理返回True,否則返回false。

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public void setKeyProgressIncrement (int increment)

設(shè)置使用方向鍵更改進(jìn)度時(shí)每次的增加值(注:設(shè)置此值后,使用按鍵修改進(jìn)度值時(shí),每次增加或減少increment大小的幅度)

參數(shù)

increment ????? The amount to increment or decrement when the user presses the arrow keys.

increment???????? 當(dāng)用戶按下指示鍵時(shí)增加或減少的值

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public synchronized void setMax (int max)

設(shè)置進(jìn)度條的范圍,從0max

參數(shù)

max?????????? 進(jìn)度條的最大值

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public void setThumb (Drawable thumb)

設(shè)置可繪制對(duì)象thumbSeekBar中顯示的進(jìn)度表的結(jié)束位置的圖案(注:例如下圖)

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如果thumb是一個(gè)有效的可繪制對(duì)象(例如不是null值),那么需要設(shè)置thumb的偏移量為他的一半寬度(參見setThumbOffset(int)

參數(shù)

thumb?? 可繪制對(duì)象

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public void setThumbOffset (int thumbOffset)

設(shè)置thumb的偏移量允許thumb擴(kuò)展超出軌道的范圍

參數(shù)

thumbOffset??? 以像素為單位的偏移量

???????????????????????????????????? (注:例如下圖,兩圖同樣取SeekBar的最大值)

默認(rèn)Offsetthumb的一半時(shí):

setThumbOffset(0)時(shí):

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受保護(hù)方法

???????? protected boolean verifyDrawable (Drawable who)

如果你的視圖子類顯示他自己的可視化對(duì)象,他將要重寫此方法并且為了顯示可繪制返回true。此操作允許進(jìn)行繪制時(shí)有動(dòng)畫效果。

確認(rèn)當(dāng)重寫從方法時(shí),需調(diào)用父類相應(yīng)方法。(注:即記得調(diào)用super.verifyDrawable(who)

參數(shù)

who?????????? 需判斷的可繪制對(duì)象(Drawable)。如果是你要顯示的對(duì)象,返回True,否則返回調(diào)用父類的結(jié)果。 ????????

返回值

如果可繪制對(duì)象(Drawable)已經(jīng)在視圖中顯示,返回True否則返回false。并且此處不允許使用動(dòng)畫。


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