Android简易手势密码开源库
来源：互联网 发布：云计算优缺点 编辑：程序博客网 时间：2024/04/30 17:33
本文介绍一个Android手势密码开源库的使用及实现的详细过程，该开源库主要实现以下几个功能：
- 支持手势密码的绘制，并支持密码保存功能，解锁时自动比对密码给出结果
- 封装了绘制密码的方法，比对两次密码是否一致，可以快捷地进行手势密码的设置
- 可以设置密码输入错误后的重试次数上限
- 可以自定义不同状态下手势密码图案的颜色
- 可以自定义手势密码的触摸点数量（n*n）
最近需要用到手势密码解锁功能，找了一些demo感觉用起来都有点麻烦，于是参考一些文章自己造了下轮子，封装了相关的一些方法，使用起来比较便捷。
github链接如下，觉得还可以请帮忙star支持下~
github链接 https://github.com/autume/GestureLock
个人博客 http://blog.csdn.net/yaodong379
使用效果
首先看下使用效果： 
使用方法
XML布局文件中使用该控件
<code class="language-java hljs has-numbering"> <com.syd.oden.gesturelock.view.GestureLockViewGroup android:id=<span class="hljs-string">"@+id/gesturelock"</span> android:layout_width=<span class="hljs-string">"match_parent"</span> android:layout_height=<span class="hljs-string">"match_parent"</span> app:preference_id=<span class="hljs-string">"1"</span> android:layout_marginTop=<span class="hljs-string">"30dp"</span> app:count=<span class="hljs-string">"3"</span> /></code>
可以设置的一些参数，说明如下:
color_no_finger:未触摸时圆形的颜色
color_finger_on:触摸时圆形的颜色
color_finger_up_correct:输入正确时圆形的颜色
color_finger_up_error:出错时圆形的颜色
count：收拾密码的圆形数量，n*n
preference_id：手势密码保存的id号，不输入或输入-1则使用默认的id
初始化
<code class="language-java hljs has-numbering"><span class="hljs-keyword">private</span> <span class="hljs-keyword">void</span> <span class="hljs-title">initGesture</span>() { mGestureLockViewGroup = (GestureLockViewGroup) findViewById(R.id.gesturelock); gestureEventListener(); gesturePasswordSettingListener(); gestureRetryLimitListener(); }</code>设置手势密码监听事件
<code class="language-java hljs has-numbering"> <span class="hljs-keyword">private</span> <span class="hljs-keyword">void</span> <span class="hljs-title">gestureEventListener</span>() { mGestureLockViewGroup.setGestureEventListener(<span class="hljs-keyword">new</span> GestureEventListener() { <span class="hljs-annotation">@Override</span> <span class="hljs-keyword">public</span> <span class="hljs-keyword">void</span> <span class="hljs-title">onGestureEvent</span>(<span class="hljs-keyword">boolean</span> matched) { mylog.d(<span class="hljs-string">"onGestureEvent matched: "</span> + matched); <span class="hljs-keyword">if</span> (!matched) { tv_state.setTextColor(Color.RED); tv_state.setText(<span class="hljs-string">"手势密码错误"</span>); } <span class="hljs-keyword">else</span> { <span class="hljs-keyword">if</span> (isReset) { isReset = <span class="hljs-keyword">false</span>; Toast.makeText(MainActivity.<span class="hljs-keyword">this</span>, <span class="hljs-string">"清除成功!"</span>, Toast.LENGTH_SHORT).show(); resetGesturePattern(); } <span class="hljs-keyword">else</span> { tv_state.setTextColor(Color.WHITE); tv_state.setText(<span class="hljs-string">"手势密码正确"</span>); } } } }); }</code>若已经设置有密码则会进入该回调，在这里对结果进行处理，上面的例子中加入了一个重设密码的处理。
手势密码设置
<code class="language-java hljs has-numbering"> <span class="hljs-keyword">private</span> <span class="hljs-keyword">void</span> <span class="hljs-title">gesturePasswordSettingListener</span>() { mGestureLockViewGroup.setGesturePasswordSettingListener(<span class="hljs-keyword">new</span> GesturePasswordSettingListener() { <span class="hljs-annotation">@Override</span> <span class="hljs-keyword">public</span> <span class="hljs-keyword">boolean</span> <span class="hljs-title">onFirstInputComplete</span>(<span class="hljs-keyword">int</span> len) { <span class="hljs-keyword">if</span> (len > <span class="hljs-number">3</span>) { tv_state.setTextColor(Color.WHITE); tv_state.setText(<span class="hljs-string">"再次绘制手势密码"</span>); <span class="hljs-keyword">return</span> <span class="hljs-keyword">true</span>; } <span class="hljs-keyword">else</span> { tv_state.setTextColor(Color.RED); tv_state.setText(<span class="hljs-string">"最少连接4个点，请重新输入!"</span>); <span class="hljs-keyword">return</span> <span class="hljs-keyword">false</span>; } } <span class="hljs-annotation">@Override</span> <span class="hljs-keyword">public</span> <span class="hljs-keyword">void</span> <span class="hljs-title">onSuccess</span>() { tv_state.setTextColor(Color.WHITE); Toast.makeText(MainActivity.<span class="hljs-keyword">this</span>, <span class="hljs-string">"密码设置成功!"</span>, Toast.LENGTH_SHORT).show(); tv_state.setText(<span class="hljs-string">"请输入手势密码解锁!"</span>); } <span class="hljs-annotation">@Override</span> <span class="hljs-keyword">public</span> <span class="hljs-keyword">void</span> <span class="hljs-title">onFail</span>() { tv_state.setTextColor(Color.RED); tv_state.setText(<span class="hljs-string">"与上一次绘制不一致，请重新绘制"</span>); } }); }</code>若还未设置密码，绘制手势的时候会进入该回调，返回值为绘制的触摸点的数量，onFirstInputComplete中返回true则进入第二手势密码的绘制，两次输入一致后自动保存密码。
重试次数超过限制监听
<code class="language-java hljs has-numbering"> <span class="hljs-keyword">private</span> <span class="hljs-keyword">void</span> <span class="hljs-title">gestureRetryLimitListener</span>() { mGestureLockViewGroup.setGestureUnmatchedExceedListener(<span class="hljs-number">3</span>, <span class="hljs-keyword">new</span> GestureUnmatchedExceedListener() { <span class="hljs-annotation">@Override</span> <span class="hljs-keyword">public</span> <span class="hljs-keyword">void</span> <span class="hljs-title">onUnmatchedExceedBoundary</span>() { tv_state.setTextColor(Color.RED); tv_state.setText(<span class="hljs-string">"错误次数过多，请稍后再试!"</span>); } }); }</code>若设置了该监听事件，则输入错误有次数限制，超过上限后进入回调，在该回调中进行处理。
清除密码的逻辑自己加个判断处理下即可，具体可以看下github上的demo
其他的一些API
public void removePassword() ：清除密码
public void savePassword() : 保存密码，设置手势密码成功后会自动保存，也可以调用该接口另外设置密码
public void getPassword()： 获取密码
public void setRetryTimes(int retryTimes) ： 设置重试次数上限
public boolean isSetPassword() ： 返回现在是否已经设置有密码
public void resetView() ： 将视图Reset
在项目中导入该库
仅需加入两行代码：
在工程的 build.gradle中加入：
<code class="language-java hljs has-numbering">allprojects { repositories { ... maven { url <span class="hljs-string">"https://jitpack.io"</span> } } }</code>module的build.gradle中加入依赖：
<code class="language-java hljs has-numbering">dependencies { compile <span class="hljs-string">'com.github.autume:GestureLock:1.0.0'</span> }</code>总的使用就是这样，是不是很简单！
具体实现过程
下面讲下实现的过程，如果只是直接拿来用的话也可以略过这部分。
自定义手势密码的圆形view
这部分主要参考Hongyang大大的博客，稍微修改了一下
初始化传入参数
<code class="language-java hljs has-numbering"><span class="hljs-keyword">public</span> <span class="hljs-title">GestureLockView</span>(Context context, <span class="hljs-keyword">int</span> colorNoFingerr, <span class="hljs-keyword">int</span> colorFingerOn, <span class="hljs-keyword">int</span> colorCorrect, <span class="hljs-keyword">int</span> colorError) { <span class="hljs-keyword">super</span>(context); <span class="hljs-keyword">this</span>.mColorNoFinger = colorNoFingerr; <span class="hljs-keyword">this</span>.mColorFingerOn = colorFingerOn; <span class="hljs-keyword">this</span>.mColorFingerUpCorrect = colorCorrect; <span class="hljs-keyword">this</span>.mColorFingerUpError = colorError; mPaint = <span class="hljs-keyword">new</span> Paint(Paint.ANTI_ALIAS_FLAG); mArrowPath = <span class="hljs-keyword">new</span> Path(); }</code>根据不同的触摸状态绘制不同颜色的圆
<code class="language-java hljs has-numbering"> <span class="hljs-annotation">@Override</span> <span class="hljs-keyword">protected</span> <span class="hljs-keyword">void</span> <span class="hljs-title">onDraw</span>(Canvas canvas) { <span class="hljs-keyword">switch</span> (mCurrentStatus) { <span class="hljs-keyword">case</span> STATUS_FINGER_ON: <span class="hljs-comment">// 绘制外圆</span> mPaint.setStyle(Style.STROKE); mPaint.setColor(mColorFingerOn); mPaint.setStrokeWidth(<span class="hljs-number">2</span>); canvas.drawCircle(mCenterX, mCenterY, mRadius, mPaint); <span class="hljs-comment">// 绘制内圆</span> mPaint.setStyle(Style.FILL); canvas.drawCircle(mCenterX, mCenterY, mRadius * mInnerCircleRadiusRate, mPaint); <span class="hljs-keyword">break</span>; <span class="hljs-keyword">case</span> STATUS_FINGER_UP: <span class="hljs-comment">// 绘制外圆</span> <span class="hljs-keyword">if</span> (GestureLockViewGroup.isCorrect) mPaint.setColor(mColorFingerUpCorrect); <span class="hljs-keyword">else</span> mPaint.setColor(mColorFingerUpError); mPaint.setStyle(Style.STROKE); mPaint.setStrokeWidth(<span class="hljs-number">2</span>); canvas.drawCircle(mCenterX, mCenterY, mRadius, mPaint); <span class="hljs-comment">// 绘制内圆</span> mPaint.setStyle(Style.FILL); canvas.drawCircle(mCenterX, mCenterY, mRadius * mInnerCircleRadiusRate, mPaint); drawArrow(canvas); <span class="hljs-keyword">break</span>; <span class="hljs-keyword">case</span> STATUS_NO_FINGER: <span class="hljs-comment">// 绘制外圆</span> mPaint.setStyle(Style.STROKE); mPaint.setColor(mColorNoFinger); canvas.drawCircle(mCenterX, mCenterY, mRadius, mPaint); <span class="hljs-comment">// 绘制内圆</span> mPaint.setStyle(Style.FILL); mPaint.setColor(mColorNoFinger); canvas.drawCircle(mCenterX, mCenterY, mRadius * mInnerCircleRadiusRate, mPaint); <span class="hljs-keyword">break</span>; } }</code>绘制箭头
<code class="language-java hljs has-numbering"> <span class="hljs-annotation">@Override</span> <span class="hljs-keyword">protected</span> <span class="hljs-keyword">void</span> <span class="hljs-title">onMeasure</span>(<span class="hljs-keyword">int</span> widthMeasureSpec, <span class="hljs-keyword">int</span> heightMeasureSpec) { <span class="hljs-keyword">super</span>.onMeasure(widthMeasureSpec, heightMeasureSpec); mWidth = MeasureSpec.getSize(widthMeasureSpec); mHeight = MeasureSpec.getSize(heightMeasureSpec); <span class="hljs-comment">// 取长和宽中的小值</span> mWidth = mWidth < mHeight ? mWidth : mHeight; mRadius = mCenterX = mCenterY = mWidth / <span class="hljs-number">2</span>; mRadius -= mStrokeWidth / <span class="hljs-number">2</span>; <span class="hljs-comment">// 绘制三角形，初始时是个默认箭头朝上的一个等腰三角形，用户绘制结束后，根据由两个GestureLockView决定需要旋转多少度</span> <span class="hljs-keyword">float</span> mArrowLength = mWidth / <span class="hljs-number">2</span> * mArrowRate; mArrowPath.moveTo(mWidth / <span class="hljs-number">2</span>, mStrokeWidth + <span class="hljs-number">2</span>); mArrowPath.lineTo(mWidth / <span class="hljs-number">2</span> - mArrowLength, mStrokeWidth + <span class="hljs-number">2</span> + mArrowLength); mArrowPath.lineTo(mWidth / <span class="hljs-number">2</span> + mArrowLength, mStrokeWidth + <span class="hljs-number">2</span> + mArrowLength); mArrowPath.close(); mArrowPath.setFillType(Path.FillType.WINDING); } <span class="hljs-keyword">private</span> <span class="hljs-keyword">void</span> <span class="hljs-title">drawArrow</span>(Canvas canvas) { <span class="hljs-keyword">if</span> (mArrowDegree != -<span class="hljs-number">1</span>) { mPaint.setStyle(Paint.Style.FILL); canvas.save(); canvas.rotate(mArrowDegree, mCenterX, mCenterY); canvas.drawPath(mArrowPath, mPaint); canvas.restore(); } }</code>自定义手势密码的ViewGroup
加入自定义view的属性
<code class="language-java hljs has-numbering"><?xml version=<span class="hljs-string">"1.0"</span> encoding=<span class="hljs-string">"utf-8"</span>?><resources> <attr name=<span class="hljs-string">"color_no_finger"</span> format=<span class="hljs-string">"color"</span> /> <attr name=<span class="hljs-string">"color_finger_on"</span> format=<span class="hljs-string">"color"</span> /> <attr name=<span class="hljs-string">"color_finger_up_correct"</span> format=<span class="hljs-string">"color"</span> /> <attr name=<span class="hljs-string">"color_finger_up_error"</span> format=<span class="hljs-string">"color"</span> /> <attr name=<span class="hljs-string">"count"</span> format=<span class="hljs-string">"integer"</span> /> <attr name=<span class="hljs-string">"preference_id"</span> format=<span class="hljs-string">"integer"</span> /> <declare-styleable name=<span class="hljs-string">"GestureLockViewGroup"</span>> <attr name=<span class="hljs-string">"color_no_finger"</span> /> <attr name=<span class="hljs-string">"color_finger_on"</span> /> <attr name=<span class="hljs-string">"color_finger_up_correct"</span> /> <attr name=<span class="hljs-string">"color_finger_up_error"</span> /> <attr name=<span class="hljs-string">"count"</span> /> <attr name=<span class="hljs-string">"preference_id"</span> /> </declare-styleable></resources></code>
获取参数及初始化
<code class="language-java hljs has-numbering"><span class="hljs-keyword">public</span> <span class="hljs-title">GestureLockViewGroup</span>(Context context, AttributeSet attrs, <span class="hljs-keyword">int</span> defStyle) { <span class="hljs-keyword">super</span>(context, attrs, defStyle); <span class="hljs-javadoc">/** * 获得所有自定义的参数的值 */</span> TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.GestureLockViewGroup, defStyle, <span class="hljs-number">0</span>); mNoFingerColor = a.getColor(R.styleable.GestureLockViewGroup_color_no_finger, mNoFingerColor); mFingerOnColor = a.getColor(R.styleable.GestureLockViewGroup_color_finger_on, mFingerOnColor); mFingerUpColorCorrect = a.getColor(R.styleable.GestureLockViewGroup_color_finger_up_correct, mFingerUpColorCorrect); mFingerUpColorError = a.getColor(R.styleable.GestureLockViewGroup_color_finger_up_error, mFingerUpColorError); mCount = a.getInt(R.styleable.GestureLockViewGroup_count, mCount); mPrferenceId = a.getInt(R.styleable.GestureLockViewGroup_preference_id, mPrferenceId); a.recycle(); <span class="hljs-javadoc">/** * 获取密码状态 */</span> gesturePreference = <span class="hljs-keyword">new</span> GesturePreference(context, mPrferenceId); password = gesturePreference.ReadStringPreference(); Log.d(TAG, <span class="hljs-string">"password now is : "</span> + password); isSetPassword = !password.equals(<span class="hljs-string">"null"</span>); <span class="hljs-comment">//判断是否已经保存有密码</span> isInPasswordSettingMode = !isSetPassword; <span class="hljs-comment">//当未设置密码，进入密码设置模式</span> <span class="hljs-comment">// 初始化画笔</span> mPaint = <span class="hljs-keyword">new</span> Paint(Paint.ANTI_ALIAS_FLAG); mPaint.setStyle(Paint.Style.STROKE); mPaint.setStrokeCap(Paint.Cap.ROUND); mPaint.setStrokeJoin(Paint.Join.ROUND); mPath = <span class="hljs-keyword">new</span> Path(); }</code>在触摸监听中处理不同事件
<code class="language-java hljs has-numbering"> <span class="hljs-annotation">@Override</span> <span class="hljs-keyword">public</span> <span class="hljs-keyword">boolean</span> <span class="hljs-title">onTouchEvent</span>(MotionEvent event) { <span class="hljs-keyword">int</span> action = event.getAction(); <span class="hljs-keyword">int</span> x = (<span class="hljs-keyword">int</span>) event.getX(); <span class="hljs-keyword">int</span> y = (<span class="hljs-keyword">int</span>) event.getY(); Log.d(TAG, <span class="hljs-string">"mTryTimes : "</span> + mTryTimes); <span class="hljs-comment">//重试次数超过限制，直接返回</span> <span class="hljs-keyword">if</span> (mTryTimes <= <span class="hljs-number">0</span> && isRetryTimeLimit) { <span class="hljs-keyword">return</span> <span class="hljs-keyword">true</span>; } <span class="hljs-keyword">switch</span> (action) { <span class="hljs-keyword">case</span> MotionEvent.ACTION_DOWN: reset(); <span class="hljs-comment">// 重置</span> <span class="hljs-keyword">break</span>; <span class="hljs-keyword">case</span> MotionEvent.ACTION_MOVE: drawAndGetSelectedWhenTouchMove(x, y); <span class="hljs-keyword">break</span>; <span class="hljs-keyword">case</span> MotionEvent.ACTION_UP: <span class="hljs-keyword">if</span> (isInPasswordSettingMode) { <span class="hljs-keyword">if</span> (gesturePasswordSettingListener != <span class="hljs-keyword">null</span>) setPasswordHandle(); <span class="hljs-comment">//设置密码</span> } <span class="hljs-keyword">else</span> { <span class="hljs-keyword">if</span> (mChoose.size() > <span class="hljs-number">0</span>) { isCorrect = checkAnswer(); } <span class="hljs-keyword">else</span> { <span class="hljs-keyword">return</span> <span class="hljs-keyword">true</span>; } <span class="hljs-keyword">if</span> (gestureEventListener != <span class="hljs-keyword">null</span>) { gestureEventListener.onGestureEvent(isCorrect); <span class="hljs-comment">//将结果回调</span> } <span class="hljs-keyword">if</span> (<span class="hljs-keyword">this</span>.mTryTimes == <span class="hljs-number">0</span>) { gestureUnmatchedExceedListener.onUnmatchedExceedBoundary(); <span class="hljs-comment">//超出重试次数，进入回调</span> } } drawWhenTouchUp(); <span class="hljs-keyword">break</span>; } invalidate(); <span class="hljs-keyword">return</span> <span class="hljs-keyword">true</span>; } <span class="hljs-keyword">private</span> <span class="hljs-keyword">void</span> <span class="hljs-title">drawAndGetSelectedWhenTouchMove</span>(<span class="hljs-keyword">int</span> x, <span class="hljs-keyword">int</span> y) { mPaint.setColor(mFingerOnColor); mPaint.setAlpha(<span class="hljs-number">50</span>); GestureLockView child = getChildIdByPos(x, y); <span class="hljs-keyword">if</span> (child != <span class="hljs-keyword">null</span>) { <span class="hljs-keyword">int</span> cId = child.getId(); <span class="hljs-keyword">if</span> (!mChoose.contains(cId)) { mChoose.add(cId); mChooseString = mChooseString + cId; child.setMode(Mode.STATUS_FINGER_ON); <span class="hljs-comment">// 设置指引线的起点</span> mLastPathX = child.getLeft() / <span class="hljs-number">2</span> + child.getRight() / <span class="hljs-number">2</span>; mLastPathY = child.getTop() / <span class="hljs-number">2</span> + child.getBottom() / <span class="hljs-number">2</span>; <span class="hljs-keyword">if</span> (mChoose.size() == <span class="hljs-number">1</span>)<span class="hljs-comment">// 当前添加为第一个</span> { mPath.moveTo(mLastPathX, mLastPathY); } <span class="hljs-keyword">else</span> <span class="hljs-comment">// 非第一个，将两者使用线连上</span> { mPath.lineTo(mLastPathX, mLastPathY); } } } <span class="hljs-comment">// 指引线的终点</span> mTmpTarget.x = x; mTmpTarget.y = y; } <span class="hljs-keyword">private</span> <span class="hljs-keyword">void</span> <span class="hljs-title">drawWhenTouchUp</span>() { <span class="hljs-keyword">if</span> (isCorrect) { mPaint.setColor(mFingerUpColorCorrect); } <span class="hljs-keyword">else</span> { mPaint.setColor(mFingerUpColorError); } mPaint.setAlpha(<span class="hljs-number">50</span>); Log.d(TAG, <span class="hljs-string">"mChoose = "</span> + mChoose); <span class="hljs-comment">// 将终点设置位置为起点，即取消指引线</span> mTmpTarget.x = mLastPathX; mTmpTarget.y = mLastPathY; <span class="hljs-comment">// 改变子元素的状态为UP</span> setItemModeUp(); <span class="hljs-comment">// 计算每个元素中箭头需要旋转的角度</span> <span class="hljs-keyword">for</span> (<span class="hljs-keyword">int</span> i = <span class="hljs-number">0</span>; i + <span class="hljs-number">1</span> < mChoose.size(); i++) { <span class="hljs-keyword">int</span> childId = mChoose.get(i); <span class="hljs-keyword">int</span> nextChildId = mChoose.get(i + <span class="hljs-number">1</span>); GestureLockView startChild = (GestureLockView) findViewById(childId); GestureLockView nextChild = (GestureLockView) findViewById(nextChildId); <span class="hljs-keyword">int</span> dx = nextChild.getLeft() - startChild.getLeft(); <span class="hljs-keyword">int</span> dy = nextChild.getTop() - startChild.getTop(); <span class="hljs-comment">// 计算角度</span> <span class="hljs-keyword">int</span> angle = (<span class="hljs-keyword">int</span>) Math.toDegrees(Math.atan2(dy, dx)) + <span class="hljs-number">90</span>; startChild.setArrowDegree(angle); } }</code>设置密码处理:
<code class="language-java hljs has-numbering"> <span class="hljs-keyword">private</span> <span class="hljs-keyword">void</span> <span class="hljs-title">setPasswordHandle</span>() { <span class="hljs-keyword">if</span> (isWaitForFirstInput) { <span class="hljs-keyword">if</span> (gesturePasswordSettingListener.onFirstInputComplete(mChooseString.length())) { firstInputPassword = mChooseString; isWaitForFirstInput = <span class="hljs-keyword">false</span>; } } <span class="hljs-keyword">else</span> { <span class="hljs-keyword">if</span> (firstInputPassword.equals(mChooseString)) { gesturePasswordSettingListener.onSuccess(); savePassword(mChooseString); isInPasswordSettingMode = <span class="hljs-keyword">false</span>; } <span class="hljs-keyword">else</span> { gesturePasswordSettingListener.onFail(); } } reset(); }</code>检查手势密码是否正确:
<code class="language-java hljs has-numbering"> <span class="hljs-keyword">public</span> <span class="hljs-keyword">boolean</span> <span class="hljs-title">checkAnswer</span>() { <span class="hljs-keyword">if</span> (password.equals(mChooseString)) { <span class="hljs-keyword">return</span> <span class="hljs-keyword">true</span>; } <span class="hljs-keyword">else</span> { <span class="hljs-keyword">if</span> (isRetryTimeLimit) <span class="hljs-keyword">this</span>.mTryTimes--; <span class="hljs-keyword">return</span> <span class="hljs-keyword">false</span>; } }</code>重置：
<code class="language-java hljs has-numbering"><span class="hljs-keyword">private</span> <span class="hljs-keyword">void</span> <span class="hljs-title">reset</span>() { mChoose.clear(); mChooseString = <span class="hljs-string">""</span>; mPath.reset(); <span class="hljs-keyword">for</span> (GestureLockView gestureLockView : mGestureLockViews) { gestureLockView.setMode(Mode.STATUS_NO_FINGER); gestureLockView.setArrowDegree(-<span class="hljs-number">1</span>); } }</code>对外公开的一些方法
<code class="language-java hljs has-numbering"> <span class="hljs-keyword">public</span> <span class="hljs-keyword">void</span> <span class="hljs-title">setGestureEventListener</span>(GestureEventListener gestureEventListener) { <span class="hljs-keyword">this</span>.gestureEventListener = gestureEventListener; } <span class="hljs-keyword">public</span> <span class="hljs-keyword">void</span> <span class="hljs-title">setGestureUnmatchedExceedListener</span>(<span class="hljs-keyword">int</span> retryTimes, GestureUnmatchedExceedListener gestureUnmatchedExceedListener) { isRetryTimeLimit = <span class="hljs-keyword">true</span>; <span class="hljs-keyword">this</span>.mTryTimes = retryTimes; <span class="hljs-keyword">this</span>.gestureUnmatchedExceedListener = gestureUnmatchedExceedListener; } <span class="hljs-keyword">public</span> <span class="hljs-keyword">void</span> <span class="hljs-title">setGesturePasswordSettingListener</span>(GesturePasswordSettingListener gesturePasswordSettingListener) { <span class="hljs-keyword">this</span>.gesturePasswordSettingListener = gesturePasswordSettingListener; } <span class="hljs-keyword">public</span> <span class="hljs-keyword">void</span> <span class="hljs-title">removePassword</span>() { gesturePreference.WriteStringPreference(<span class="hljs-string">"null"</span>); <span class="hljs-keyword">this</span>.isSetPassword = <span class="hljs-keyword">false</span>; isWaitForFirstInput = <span class="hljs-keyword">true</span>; isInPasswordSettingMode = <span class="hljs-keyword">true</span>; } <span class="hljs-keyword">public</span> <span class="hljs-keyword">void</span> <span class="hljs-title">savePassword</span>(String password) { <span class="hljs-keyword">this</span>.password = password; gesturePreference.WriteStringPreference(password); } <span class="hljs-keyword">public</span> String <span class="hljs-title">getPassword</span>() { <span class="hljs-keyword">return</span> password; } <span class="hljs-keyword">public</span> <span class="hljs-keyword">void</span> <span class="hljs-title">resetView</span>() { reset(); invalidate(); } <span class="hljs-keyword">public</span> <span class="hljs-keyword">void</span> <span class="hljs-title">setRetryTimes</span>(<span class="hljs-keyword">int</span> retryTimes) { <span class="hljs-keyword">this</span>.mTryTimes = retryTimes; } <span class="hljs-keyword">public</span> <span class="hljs-keyword">boolean</span> <span class="hljs-title">isSetPassword</span>() { <span class="hljs-keyword">return</span> isSetPassword; }</code>定义密码存储的Preference
就是简单的存和读
<code class="language-java hljs has-numbering"><span class="hljs-keyword">public</span> <span class="hljs-title">GesturePreference</span>(Context context, <span class="hljs-keyword">int</span> nameTableId) { <span class="hljs-keyword">this</span>.context = context; <span class="hljs-keyword">if</span> (nameTableId != -<span class="hljs-number">1</span>) <span class="hljs-keyword">this</span>.nameTable = nameTable + nameTableId; } <span class="hljs-keyword">public</span> <span class="hljs-keyword">void</span> <span class="hljs-title">WriteStringPreference</span>(String data) { SharedPreferences preferences = context.getSharedPreferences(fileName, Context.MODE_PRIVATE); SharedPreferences.Editor editor = preferences.edit(); editor.putString(nameTable, data); editor.commit(); } <span class="hljs-keyword">public</span> String <span class="hljs-title">ReadStringPreference</span>() { SharedPreferences preferences = context.getSharedPreferences(fileName, Context.MODE_PRIVATE); <span class="hljs-keyword">return</span> preferences.getString(nameTable, <span class="hljs-string">"null"</span>); }</code>总结
ok，至此，整个手势密码的实现就完成了。
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