计算机软件及应用AndroidICS40锁屏流程

1、淄博怡源网络科技有限公司先来说说LockScreen 分类;一、无锁屏；二、锁屏：1、UnLockScreen图案锁、PIN锁，密码锁；2、LockScreen波纹锁；版权所有： 淄博 SEO8：597月17日周二 已充满。无服隽无服务接着我们来看看LockScreen的时序图:crcawKcjguardVicut)new Lock Pdtlcm Key|gu时I k-nKcv "uardVil 1' >pc (KcvAuaraViewMediatorJJ2syslcmReadyOndukk：V!iLKiTdl A*ckedl II亠 showl.ockcd)，

2、1; i；h&ndkShowf)f»how( |】：:i ；r:综上所述:1、createUnlockScreenFor()方法创建的是 UnLockScreen界面，代码如下:java view pla in copypri nt?1. View createU nl ockScree nF or(U nlockMode unl ockMode) 2. View unlockView =null ;3.3. if (DEBUG) Log.d(TAG,4. "create Un lockScree nFor(”+ un lockMode +"): mE n

3、ableFallback="+ mEn ableFallback);6.5. if (u nlockMode = Un lockMode.Pattern) 淄博怡源网络科技有限公司6. PatternUnlockScreen view =new PatternUnlockScreen(7. mCon text,8. mConfiguration,9. mLockPatternUtils,10. mUpdateMonitor,11. mKeyguardScreenCallback,12. mUpdateMonitor.getFailedAttempts();13. view.setEn

4、ableFallback(mEnableFallback);14. unlockView = view;15. else if (unlockMode = UnlockMode.SimPuk) 16. unlockView = new SimPukUnlockScreen(17. mContext,18. mConfiguration,19. mUpdateMonitor,20. mKeyguardScreenCallback,21. mLockPatternUtils, MSimTelephonyManager.getDefault().getDefaultSubscription();22

5、. else if (unlockMode = UnlockMode.SimPin) 23. uniockView = new SimUnlockScreen(24. mContext,25. mConfiguration,26. mUpdateMonitor,27. mKeyguardScreenCallback,版权所有： 淄博 SEO28. mLockPatternUtils);29. else if (unlockMode = UnlockMode.Account) 30. try 31. uniockView =new AccountUnlockScreen(32. mContext

6、,33. mConfiguration,34. mUpdateMonitor,35. mKeyguardScreenCallback,36. mLockPatternUtils);37. catch (IllegalStateException e) 38. Log.i(TAG, "Couldn't instantiate AccountUnlockScreen"39. + " (lAccou ntsService isn't available)");40. / TODO: Need a more general way to prov

7、ide a41. / platform-specific fallback UI here.42. / For no w, if we can't display the acco unt log in43. / uniock UI, just bring back the regular "Pattern" uniock mode.46.44. / (We do this by simply returning a regular UniockScreen45. / here. This means that the user will still see the

8、46. / regular pattern uniock UI, regardless of the value of47. / mUnlockScreenMode or whether or not we're in the48. / "permanently locked" state.)版权所有： 淄博 SEO淄博怡源网络科技有限公司49. retur n create Uni ockScree nFor(Unl ockMode.Patter n);50. 51. else if (unlockMode = UnlockMode.Password) 52. u

9、niockView = new Password UniockScreen(53. mContext,54. mConfiguration,55. mLockPatternUtils,56. mUpdateMonitor,57. mKeyguardScreenCallback);58. else 59. throw new IllegalArgumentException("unknown uniock mode "+ uniockMode);60. 61. initializeTransportControlView(unlockView);62. initializeF

10、aceLockAreaView(uniockView);/ Only shows view if FaceLock is enabled66.63. mUnlockScreenMode = uniockMode;64. return unlockView;65. 2、createLockScreen ()就是创建 LockScreen 界面:javaview pla in copypri nt?版权所有： 淄博 SEO淄博怡源网络科技有限公司1. View createLockScree n() 2. /*View lockView = new LockScree n(3. mCon text

11、,4. mCon figurati on,5. mLockPatternUtils,6. mUpdateMo nitor,7. mKeyguardScree nCallback);8. in itializeTra nsportC on trolView(lockView);9. return lockView;*/10.10. long lockscreenType =0;11. try 12. lockscreenType = vider.Settings.Secure.13. getLong(mContext.getContentResolver(),"l

12、ockscreen.disabled");14. catch (Exception e)15. e.printStackTrace();16. 17. View lockView =null ;18. lockView = new LockScreen(19. mContext,20. mConfiguration,21. mLockPatternUtils,版权所有： 淄博 SEO22. mUpdateMonitor,23. mKeyguardScreenCallback);24. initializeTransportControlView(lockView);25. retur

13、n lockView;26. 我们来看看锁屏界面的流程：step 1 :创建LockScreen.java类> 先看看构造函数:java view pla in copypri nt?1. LockScree n(Con text con text, Con figuratio n con figurati on, LockPatternUtils lockPatternUtils,2. KeyguardUpdateM on itor updateM on itor,3. KeyguardScree nCallback callback) 4. super (context);5. mL

14、ockPatternUtils = lockPatternUtils;6. mUpdateM on itor = updateM on itor;7. mCallback = callback;8.9. mEn ableMe nuKeyl nLockScreen = shouldE nableMe nuKey();10.11. mCreationOrientation = configuration.orientation;版权所有： 淄博 SEO12.13. mKeyboardHidden = configuration.hardKeyboardHidden;14.14. if (LockP

15、atternKeyguardView.DEBUG_CONFIGURATION) 15. Log.v(TAG, "* CREATING LOCK SCREEN" , new RuntimeException();16. Log.v(TAG, "Cur orient="+ mCreationOrientation17. + " res orie nt=" + con text.getResources().getC on figurati on() .orie ntati on);18. 20.19. final LayoutI nfla

16、ter in flater = LayoutI nflater.from(c on text);20. if (DBG) Log.v(TAG, "Creation orientation = "+ mCreationOrientation);21. if (mCreationOrientation != Configuration.ORIENTATION_LANDSCAPE) 22. inflater.inflate(R.layout.keyguard_screen_tab_unlock,this , true );23. else 24. inflater.inflate

17、(R.layout.keyguard_screen_tab_unlock_land,this , true );25. 28.26. if (TelephonyManager.getDefault().isMultiSimEnabled() 27. mStatusViewManager = new MSimKeyguardStatusViewManager(this , mUpdateMonitor,28. mLockPatternUtils, mCallback, false );29. else 30. mStatusViewManager = new KeyguardStatusView

18、Manager( this , mUpdateMonitor,版权所有： 淄博 SEO31. mLockPatternUtils, mCallback, false );32. 36.33. setFocusable( true );34. setFocusableInTouchMode(true );35. setDescendantFocusability(ViewGroup.FOCUS_BLOCK_DESCENDANTS);40.36. mAudioManager = (AudioManager)mCo ntext.getSystemService(Co ntext.AUDIO_SERV

19、ICE);37. / modify by wangxianming in 2012-06-2238. if (mAudioManager !=null ) 39. mSilentMode = isSilentMode();40. 46.41. mUnlockWidget = findViewByld(R.id.unlock_widget);42. if (mUn lockWidgetin sta nceofSlid in gTab) 43. SlidingTab slidingTabView = (SlidingTab) mUnlockWidget;44. slidingTabView.set

20、HoldAfterTrigger(true , false );45. slidingTabView.setLeftHintText(R.string.lockscreen_unlock_label);46. slidingTabView.setLeftTabResources(47. R.drawable.ic_jog_dial_uniock,48. R.drawable.jog_tab_target_green.版权所有： 淄博 SEO49. R.drawable.jog_tab_bar_left_uniock,50. R.drawable.jog_tab_left_uniock);51.

21、 SlidingTabMethods slidingTabMethods =new SlidingTabMethods(slidingTabView);52. slid in gTabView.set On TriggerListe ner(slidi ngTabMethods);53. mUnlockWidgetMethods = slidingTabMethods;54. else if (mUnlockWidgetinstanceof WaveView) 55. WaveView waveView = (WaveView) mUnlockWidget;56. WaveViewMethod

22、s waveViewMethods =new WaveViewMethods(waveView);57. waveView.setOnTriggerListener(waveViewMethods);58. mUnlockWidgetMethods = waveViewMethods;59. else if (mUnlockWidgetinstanceofMultiWaveView) 60. MultiWaveView multiWaveView = (MultiWaveView) mUnlockWidget;61. MultiWaveViewMethods multiWaveViewMeth

23、ods =newMultiWaveViewMethods(multiWaveView);62. multiWaveView.setOnTriggerListener(multiWaveViewMethods);63. mUnlockWidgetMethods = multiWaveViewMethods;64. else 65. throw new IllegalStateException("Unrecognized uniock widget: "+ mUnlockWidget);66. 73.67. / Update widget with initial ring

24、state68. mUnlockWidgetMethods.updateResources();版权所有： 淄博 SEO淄博怡源网络科技有限公司76.69. if (DBG) Log.v(TAG, "* LockScreen accel is "70. + (mUnlockWidget.isHardwareAccelerated() ?"on" :"off");71. Step 2 :在Step 1步骤中根据横竖屏来加载横竖屏的布局：java view pla in copypri nt?1. if (mCreatio nOrie n

25、tation != Con figuratio n.O RIENTATION_LANDSCAPE) 2. inflater.inflate(R.layout.keyguard_screen_tab_uniock,this , true );3. else 4. inflater.inflate(R.layout.keyguard_screen_tab_unlock_land,this , true );5. Step 3 :来看看竖屏的布局文件的代码：java view pla in copypri nt?1. <GridLayout2. xml ns:a ndroid=" n

26、droid"3. an droid:orie ntati on="vertical"4. an droid:layout_width="match_pare nt"5. an droid:layout_height="match_pare nt"版权所有： 淄博 SEO淄博怡源网络科技有限公司.5.an droid:gravity="ce nter_horiz on tal"><!-锁屏界

27、面加载数字时钟-><com.a ndroid.i nternal.widget.DigitalClock an droid:id="+id/time"an droid:layout_marg inTop= "dime n/keyguardo ckscree n_status_li ne_clockfo nt_top_margi n"an droid:layout_marg in Bottom="12dip"an droid:layout_margi nRight="dime n/keyguardo ckscree

28、 n_ statusine_fon t_right_margin" android:layout_gravity= "right" ><!- Because we can't have multi-t one fon ts, we ren der two TextViews, one on<TextView android:id=top of the other. Hence the redundant layout.->"+id/timeDisplayBackgrou nd"an droid:layout_wi

29、dth="wrap_c ontent"an droid:layout_height="wrap_c ontent"an droid:s in gleL ine="true"an droid:ellipsize= "none"an droid:textSize="dime n/keyguardo ckscree n_clock_fo nt_size"an droid:textAppeara nce="?an droid:attr/textAppeara nceMedium"&q

30、uot;6dip"an droid:layout_marg in Bottom=an droid:textColor="color/lockscree n_clock_backgro und" />版权所有： 淄博 SEO<TextView android:id="+id/timeDisplayForegro und"an droid:layout_width="wrap_c onten t"an droid:layout_height="wrap_c onten t"9.

31、5.46.an droid:s in gleL ine="true"an droid:ellipsize="none"an droid:textSize="dime n/keyguardo ckscree n_clock_fo nt_size"an droid:textAppeara nce="?a ndroid:attr/textAppeara nceMedium"an droid:layout_marg in Botto

32、m="6dip"an droid:textColor="color/lockscree n_clock_foregro und"an droid:layout_alig nLeft="id/timeDisplayBackgro und"an droid:layout_alig nTop= "id/timeDisplayBackgro und"/></com.a ndroid.i ntern al.widget.DigitalClock><Lin earLayoutan droid:orie

33、ntati on="horiz on tal"an droid:layout_gravity= "right"an droid:layout_margi nRight="dime n/keyguardo ckscree n_ statusine_fon t_right_margin" ><!-锁屏界面加载日期->版权所有： 淄博 SEO淄博怡源网络科技有限公司47. <TextView48. android:id="+id/date"49. android:layout_width=&quo

34、t;wrap_content"50. android:layout_height="wrap_content"51. android:singleLine= "true"52. android:ellipsize= "marquee"53. android:textAppearance="?android:attr/textAppearanceMedium"54. android:textSize="dimen/keyguardockscreen_statusine_font_size"

35、;55. />56. <!-锁屏界面加载闹钟状态->57. <TextView58. android:id="+id/alarm_status"59. android:layout_width="wrap_content"60. android:layout_height="wrap_content"61. android:layout_marginLeft="16dip"62. android:singleLine= "true"63. android:ellipsiz

36、e= "marquee"64. android:textAppearance="?android:attr/textAppearanceMedium"65. android:textSize="dimen/keyguardockscreen_statusine_font_size"66. android:drawablePadding="4dip"67. />版权所有： 淄博 SEO68.淄博怡源网络科技有限公司69. </LinearLayout>70. <!-锁屏界面加载充电状态->

37、;71. <TextView72. android:id="+id/status1"73. android:layout_gravity="right"74. android:layout_marginRight="dimen/keyguardockscreen_statusine_font_right_margin"75. android:singleLine= "true"76. android:ellipsize= "marquee"77. android:textAppearanc

38、e="?android:attr/textAppearanceMedium"78. android:textSize="dimen/keyguardockscreen_statusine_font_size"79. android:drawablePadding="4dip"80. />81.82. <Space android:layout_gravity= "fill" />83. <RelativeLayout84. android:layout_width= "match_

39、parent"85. android:layout_height="302dip" >86. <!-锁屏界面加载波纹的锁屏->87. <ernal.widget.multiwaveview.MultiWaveView88. android:id="+id/unlock_widget"89. android:orientation="horizontal"版权所有： 淄博 SEO版权所有： 淄博 SEO90.an droid:layout_width="match

40、_pare nt"91.an droid:layout_height="match_pare nt"92.an droid:layout_alig nPare ntBottom="true"93.94.an droid:targetDrawables="array/lockscree n_targets_with_camera"95.an droid:targetDescripti ons="array/lockscree n_target_descripti on s_with_camera"96.an

41、 droid:directio nDescriptio ns="array/lockscree n_directio n_descriptio ns"97.an droid:ha ndleDrawable="drawable/ic_lockscree n_ha ndle"98.an droid:waveDrawable="drawable/ic_lockscree n_ oute rring"99.an droid:outerRadius="dime n/m ultiwaveview_target_placeme nt_ra

42、dius"100.an droid:s napMarg in="dime n/multiwaveview_s nap_margi n"101.an droid:hitRadius="dime n/multiwaveview_hit_radius"102.an droid:rightChevro nDrawable="drawable/ic_lockscree n_chevro n_right"103.an droid:horiz on talOffset="0dip"104.an droid:vertic

43、alOffset="60dip"105.an droid:feedbackCo unt="3"106.an droid:vibrati on Durati on="20"107./>108.<!-锁屏界面加载运营商状态->109.<TextView110.an droid:id= "+id/carrier"111.an droid:layout_width="fill_pare nt"21.122.

44、32.133.an droid:layout_height="wrap_c onten t"an droid:layout_alig nPare ntBottom="true"an droid:layout_marg in Bottom="12dip"an droid:gravity="cen ter_horiz on tal"an droid:s in gleL ine= "true"an droid:ellipsize

45、= "marquee"an droid:textAppeara nce= "?a ndroid:attr/textAppeara nceMedium"an droid:textSize="dime n/keyguardo ckscree n_status_li ne_fon t_size"an droid:textColor="?a ndroid:attr/textColorSec on dary"/></RelativeLayout><Lin earLayoutan droid:orie

46、ntati on="horiz on tal"an droid:layout_width= "match_pare nt"style= "?a ndroid:attr/butto nBarStyle"an droid:gravity= "cen ter"android:weightSum="2" ><!-锁屏界面加载紧急拨号按钮-><Butt on an droid:id="+id/emerge ncyCallButto n"an droid:layo

47、ut_gravity="cen ter_horiz on tal"版权所有： 淄博 SEO淄博怡源网络科技有限公司134. android:layout_width= "Odip"135. android:layout_height="wrap_content"136. android:layout_weight="1"137. style= "?android:attr/buttonBarButtonStyle"138. android:textSize="dimen/keyguar

48、dockscreen_status_line_font_size"139. android:text="*android:string/lockscreen_emergency_call"140. android:drawableLeft="*android:drawable/lockscreen_emergency_button"141. android:drawablePadding= "0dip"142. android:visibility="gone"143. />144.144. <

49、;/LinearLayout>146.145. </GridLayout>Step 4 :在Step 3 中重点看这个自定义com.a ndroid.i nternal.widget.multiwaveview.MultiWaveView的view，这个view是处理ICS4.0锁屏的拖拽的功能，具体代码如下:java view pla in copypri nt?1. public MultiWaveView(C on text c on text, AttributeSet attrs) 2. super (context, attrs);3.Resources res

50、= con text.getResources();4.o o oo o o5.加载资源6.o o oo o o7.通过onMeasure ()来计算自定义 view 的大小:java view pla in copypri nt?1. protected void onMeasure( int widthMeasureSpec, int heightMeasureSpec) 2. final int minimumWidth = getSuggestedMinimumWidth();3. final int minimumHeight = getSuggestedMinimumHeight(

51、);4. int viewWidth = resolveMeasured(widthMeasureSpec, minimumWidth);5. int viewHeight = resolveMeasured(heightMeasureSpec, minimumHeight);6. setMeasuredDime nsio n(viewWidth, viewHeight);7. 通过on Layout ()来加载布局:java view pla in copypri nt?1. protected void onLayout( booleanchanged, int left, int top

52、, int right, int bottom) 2. super .onLayout(changed, left, top, right, bottom);3. final int width = right - left;4. final int height = bottom - top;5. float newWaveCenterX = mHorizontalOffset + Math.max(width, mOuterRing.getWidth()/ 2;6. float newWaveCe nterY = mVerticalOffset + Math.max(height, mOu

53、terRi ng.getHeight() /2;7. if (n ewWaveCe nterX != mWaveCe nterX | newWaveCe nterY != mWaveCe nterY) 8. if (mWaveCe nterX =0 && mWaveCe nterY =0) 9. perform In itialLayout (n ewWaveCe nterX, n ewWaveCe nterY);10. 11. mWaveCenterX = newWaveCenterX;12. mWaveCenterY = newWaveCenterY;13.14. mOut

54、erRing.setX(mWaveCenterX);15. mOuterRing.setY(Math.max(mWaveCenterY, mWaveCenterY);16.16. updateT argetPositions();17. 18. if (DEBUG) dump();19. Step 5 :来看看触摸屏幕时的事件处理onTouchEvent()代码如下:java view pla in copypri nt?1. Override2. public boolea n onT ouchEve nt(Motio nEvent event) 3. final int action =

55、event.getAction();4.4. booleanhandled =false ;5. switch (act ion) 6. case MotionEvent.ACTION_DOWN:7. han dleDow n(even t);8. handled =true ;9. break ;11.10. case MotionEvent.ACTION_MOVE:11. handleMove(event);12. handled =true ;13. break ;16.14. case MotionEvent.ACTION_UP:15. handleMove(event);16. ha

56、ndleUp(event);17. handled =true ;18. break ;22.23. case MotionEvent.ACTION_CANCEL:24. handleMove(event);25. handled =true ;26. break ;27. 28. invalidate();29. return handled ? true : super .onTouchEvent(event);30. 通过handleMove()来处理移动事件:java view pla in copypri nt?1. private void han dleMove(Moti on Eve nt event) 2. if (!mDragging) 3. trySwitchToFirstTouchState(eve nt);4. return ;5. 6.6. int activeT arget = -1;7. final int historySize = e