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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