Android手势密码实现实例代码
一、效果实现
二、实现思路:
1. 正上方的提示区域,用一个类(lockindicator.java)来实现,自定义view来绘制9个提示图标;
2. 手势密码绘制区域,用一个类(gesturecontentview.java)来实现,它继承自viewgroup里面, 添加9个imageview来表示图标, 在onlayout()方法中设置它们的位置;
3. 手势路径绘制, 用一个类(gesturedrawline.java)来实现,复写ontouchevent()方法,在这个方法里面监听touchevent事件: action_down、action_move、action_up事件,来绘制手势连接不同点之间的路径;
4. 9个点的对象,用一个类(gesturepoint.java)来实现,保存它的位置、状态、背景图片等相关信息;
5. 手势密码的获取,判断手指当前的位置,根据滑动路径经过的点,按顺序保存绘制的点的顺序(这里的点顺序从上到下分别是:1,2,3,4,5,6,7,8,9),不能有重复的点。
三、代码实现步骤:
1.要用一个类来表示这9个点中的第一个点。里面保留有当前点的上下左右的各个位置等属性
2.自定义groupview,用来装9个点,9个点的显示是通过imageview。复写onlayout这个方法,让点按需求排列
3.定义一个可以画线的view,复写ontouchevent方法,在这个方法里面进行画直线的操作
4.判断用户手指当前的位置,取出当前的位置去与那9个点中的每个点的位置进行比较,如果用户点的位置在某一个点之内,那么当那个点置换背景图片。
具体实现代码如下:
1.lockindicator.java 图案提示类
package com.snda.fund.widget; import com.snda.fund.r; import android.content.context; import android.content.res.typedarray; import android.graphics.canvas; import android.graphics.paint; import android.graphics.paint.style; import android.graphics.drawable.drawable; import android.os.powermanager; import android.text.textutils; import android.util.attributeset; import android.util.log; import android.view.view; /** * * 手势密码图案提示 * @author ganchuanpu * */ public class lockindicator extends view { private int numrow = 3; // 行 private int numcolum = 3; // 列 private int patternwidth = 40; private int patternheight = 40; private int f = 5; private int g = 5; private int strokewidth = 3; private paint paint = null; private drawable patternnoraml = null; private drawable patternpressed = null; private string lockpassstr; // 手势密码 public lockindicator(context paramcontext) { super(paramcontext); } public lockindicator(context paramcontext, attributeset paramattributeset) { super(paramcontext, paramattributeset, 0); paint = new paint(); paint.setantialias(true); paint.setstrokewidth(strokewidth); paint.setstyle(paint.style.stroke); patternnoraml = getresources().getdrawable(r.drawable.lock_pattern_node_normal); patternpressed = getresources().getdrawable(r.drawable.lock_pattern_node_pressed); if (patternpressed != null) { patternwidth = patternpressed.getintrinsicwidth(); patternheight = patternpressed.getintrinsicheight(); this.f = (patternwidth / 4); this.g = (patternheight / 4); patternpressed.setbounds(0, 0, patternwidth, patternheight); patternnoraml.setbounds(0, 0, patternwidth, patternheight); } } @override protected void ondraw(canvas canvas) { if ((patternpressed == null) || (patternnoraml == null)) { return; } // 绘制3*3的图标 for (int i = 0; i < numrow; i++) { for (int j = 0; j < numcolum; j++) { paint.setcolor(-16777216); int i1 = j * patternheight + j * this.g; int i2 = i * patternwidth + i * this.f; canvas.save(); canvas.translate(i1, i2); string curnum = string.valueof(numcolum * i + (j + 1)); if (!textutils.isempty(lockpassstr)) { if (lockpassstr.indexof(curnum) == -1) { // 未选中 patternnoraml.draw(canvas); } else { // 被选中 patternpressed.draw(canvas); } } else { // 重置状态 patternnoraml.draw(canvas); } canvas.restore(); } } } @override protected void onmeasure(int paramint1, int paramint2) { if (patternpressed != null) setmeasureddimension(numcolum * patternheight + this.g * (-1 + numcolum), numrow * patternwidth + this.f * (-1 + numrow)); } /** * 请求重新绘制 * @param paramstring 手势密码字符序列 */ public void setpath(string paramstring) { lockpassstr = paramstring; invalidate(); } }
2.gesturecontentview.java 手势密码容器类
它继承viewgroup,通过addview()方法添加子view,手势密码的9个输入点(gesturepoint)、gesturedrawline手势密码路径都放在这个容器当中,下面是它的具体实现方法:
package com.wujay.fund.widget; import java.util.arraylist; import java.util.list; import android.content.context; import android.view.view; import android.view.viewgroup; import android.widget.imageview; import com.wujay.fund.r; import com.wujay.fund.common.apputil; import com.wujay.fund.entity.gesturepoint; import com.wujay.fund.widget.gesturedrawline.gesturecallback; /** * 手势密码容器类 * */ public class gesturecontentview extends viewgroup { private int basenum = 6; private int[] screendispaly; /** * 每个点区域的宽度 */ private int blockwidth; /** * 声明一个集合用来封装坐标集合 */ private list<gesturepoint> list; private context context; private boolean isverify; private gesturedrawline gesturedrawline; /** * 包含9个imageview的容器,初始化 * @param context * @param isverify 是否为校验手势密码 * @param password 用户传入密码 * @param callback 手势绘制完毕的回调 */ public gesturecontentview(context context, boolean isverify, string password, gesturecallback callback) { super(context); screendispaly = apputil.getscreendispaly(context); blockwidth = screendispaly[0]/3; this.list = new arraylist<gesturepoint>(); this.context = context; this.isverify = isverify; // 添加9个图标 addchild(); // 初始化一个可以画线的view gesturedrawline = new gesturedrawline(context, list, isverify, password, callback); } private void addchild(){ for (int i = 0; i < 9; i++) { imageview image = new imageview(context); image.setbackgroundresource(r.drawable.gesture_node_normal); this.addview(image); invalidate(); // 第几行 int row = i / 3; // 第几列 int col = i % 3; // 定义点的每个属性 int leftx = col*blockwidth+blockwidth/basenum; int topy = row*blockwidth+blockwidth/basenum; int rightx = col*blockwidth+blockwidth-blockwidth/basenum; int bottomy = row*blockwidth+blockwidth-blockwidth/basenum; gesturepoint p = new gesturepoint(leftx, rightx, topy, bottomy, image,i+1); this.list.add(p); } } public void setparentview(viewgroup parent){ // 得到屏幕的宽度 int width = screendispaly[0]; layoutparams layoutparams = new layoutparams(width, width); this.setlayoutparams(layoutparams); gesturedrawline.setlayoutparams(layoutparams); parent.addview(gesturedrawline); parent.addview(this); } @override protected void onlayout(boolean changed, int l, int t, int r, int b) { for (int i = 0; i < getchildcount(); i++) { //第几行 int row = i/3; //第几列 int col = i%3; view v = getchildat(i); v.layout(col*blockwidth+blockwidth/basenum, row*blockwidth+blockwidth/basenum, col*blockwidth+blockwidth-blockwidth/basenum, row*blockwidth+blockwidth-blockwidth/basenum); } } @override protected void onmeasure(int widthmeasurespec, int heightmeasurespec) { super.onmeasure(widthmeasurespec, heightmeasurespec); // 遍历设置每个子view的大小 for (int i = 0; i < getchildcount(); i++) { view v = getchildat(i); v.measure(widthmeasurespec, heightmeasurespec); } } /** * 保留路径delaytime时间长 * @param delaytime */ public void cleardrawlinestate(long delaytime) { gesturedrawline.cleardrawlinestate(delaytime); } }
3.gesturedrawline.java 手势密码路径绘制类
根据ontouchevent方法的不同事件,action_down、action_move、action_up分别处理不同的逻辑。
package com.wujay.fund.widget; import java.util.arraylist; import java.util.hashmap; import java.util.list; import java.util.map; import com.wujay.fund.common.apputil; import com.wujay.fund.common.constants; import com.wujay.fund.entity.gesturepoint; import android.content.context; import android.graphics.bitmap; import android.graphics.canvas; import android.graphics.color; import android.graphics.paint; import android.graphics.paint.style; import android.graphics.porterduff; import android.os.handler; import android.util.log; import android.util.pair; import android.view.motionevent; import android.view.view; import android.widget.toast; /** * 手势密码路径绘制 * */ public class gesturedrawline extends view { private int mov_x;// 声明起点坐标 private int mov_y; private paint paint;// 声明画笔 private canvas canvas;// 画布 private bitmap bitmap;// 位图 private list<gesturepoint> list;// 装有各个view坐标的集合 private list<pair<gesturepoint, gesturepoint>> linelist;// 记录画过的线 private map<string, gesturepoint> autocheckpointmap;// 自动选中的情况点 private boolean isdrawenable = true; // 是否允许绘制 /** * 屏幕的宽度和高度 */ private int[] screendispaly; /** * 手指当前在哪个point内 */ private gesturepoint currentpoint; /** * 用户绘图的回调 */ private gesturecallback callback; /** * 用户当前绘制的图形密码 */ private stringbuilder passwordsb; /** * 是否为校验 */ private boolean isverify; /** * 用户传入的password */ private string password; public gesturedrawline(context context, list<gesturepoint> list, boolean isverify, string password, gesturecallback callback) { super(context); screendispaly = apputil.getscreendispaly(context); paint = new paint(paint.dither_flag);// 创建一个画笔 bitmap = bitmap.createbitmap(screendispaly[0], screendispaly[0], bitmap.config.argb_8888); // 设置位图的宽高 canvas = new canvas(); canvas.setbitmap(bitmap); paint.setstyle(style.stroke);// 设置非填充 paint.setstrokewidth(10);// 笔宽5像素 paint.setcolor(color.rgb(245, 142, 33));// 设置默认连线颜色 paint.setantialias(true);// 不显示锯齿 this.list = list; this.linelist = new arraylist<pair<gesturepoint, gesturepoint>>(); initautocheckpointmap(); this.callback = callback; // 初始化密码缓存 this.isverify = isverify; this.passwordsb = new stringbuilder(); this.password = password; } private void initautocheckpointmap() { autocheckpointmap = new hashmap<string,gesturepoint>(); autocheckpointmap.put("1,3", getgesturepointbynum(2)); autocheckpointmap.put("1,7", getgesturepointbynum(4)); autocheckpointmap.put("1,9", getgesturepointbynum(5)); autocheckpointmap.put("2,8", getgesturepointbynum(5)); autocheckpointmap.put("3,7", getgesturepointbynum(5)); autocheckpointmap.put("3,9", getgesturepointbynum(6)); autocheckpointmap.put("4,6", getgesturepointbynum(5)); autocheckpointmap.put("7,9", getgesturepointbynum(8)); } private gesturepoint getgesturepointbynum(int num) { for (gesturepoint point : list) { if (point.getnum() == num) { return point; } } return null; } // 画位图 @override protected void ondraw(canvas canvas) { // super.ondraw(canvas); canvas.drawbitmap(bitmap, 0, 0, null); } // 触摸事件 @override public boolean ontouchevent(motionevent event) { if (isdrawenable == false) { // 当期不允许绘制 return true; } paint.setcolor(color.rgb(245, 142, 33));// 设置默认连线颜色 switch (event.getaction()) { case motionevent.action_down: mov_x = (int) event.getx(); mov_y = (int) event.gety(); // 判断当前点击的位置是处于哪个点之内 currentpoint = getpointat(mov_x, mov_y); if (currentpoint != null) { currentpoint.setpointstate(constants.point_state_selected); passwordsb.append(currentpoint.getnum()); } // canvas.drawpoint(mov_x, mov_y, paint);// 画点 invalidate(); break; case motionevent.action_move: clearscreenanddrawlist(); // 得到当前移动位置是处于哪个点内 gesturepoint pointat = getpointat((int) event.getx(), (int) event.gety()); // 代表当前用户手指处于点与点之前 if (currentpoint == null && pointat == null) { return true; } else {// 代表用户的手指移动到了点上 if (currentpoint == null) {// 先判断当前的point是不是为null // 如果为空,那么把手指移动到的点赋值给currentpoint currentpoint = pointat; // 把currentpoint这个点设置选中为true; currentpoint.setpointstate(constants.point_state_selected); passwordsb.append(currentpoint.getnum()); } } if (pointat == null || currentpoint.equals(pointat) || constants.point_state_selected == pointat.getpointstate()) { // 点击移动区域不在圆的区域,或者当前点击的点与当前移动到的点的位置相同,或者当前点击的点处于选中状态 // 那么以当前的点中心为起点,以手指移动位置为终点画线 canvas.drawline(currentpoint.getcenterx(), currentpoint.getcentery(), event.getx(), event.gety(), paint);// 画线 } else { // 如果当前点击的点与当前移动到的点的位置不同 // 那么以前前点的中心为起点,以手移动到的点的位置画线 canvas.drawline(currentpoint.getcenterx(), currentpoint.getcentery(), pointat.getcenterx(), pointat.getcentery(), paint);// 画线 pointat.setpointstate(constants.point_state_selected); // 判断是否中间点需要选中 gesturepoint betweenpoint = getbetweencheckpoint(currentpoint, pointat); if (betweenpoint != null && constants.point_state_selected != betweenpoint.getpointstate()) { // 存在中间点并且没有被选中 pair<gesturepoint, gesturepoint> pair1 = new pair<gesturepoint, gesturepoint>(currentpoint, betweenpoint); linelist.add(pair1); passwordsb.append(betweenpoint.getnum()); pair<gesturepoint, gesturepoint> pair2 = new pair<gesturepoint, gesturepoint>(betweenpoint, pointat); linelist.add(pair2); passwordsb.append(pointat.getnum()); // 设置中间点选中 betweenpoint.setpointstate(constants.point_state_selected); // 赋值当前的point; currentpoint = pointat; } else { pair<gesturepoint, gesturepoint> pair = new pair<gesturepoint, gesturepoint>(currentpoint, pointat); linelist.add(pair); passwordsb.append(pointat.getnum()); // 赋值当前的point; currentpoint = pointat; } } invalidate(); break; case motionevent.action_up:// 当手指抬起的时候 if (isverify) { // 手势密码校验 // 清掉屏幕上所有的线,只画上集合里面保存的线 if (password.equals(passwordsb.tostring())) { // 代表用户绘制的密码手势与传入的密码相同 callback.checkedsuccess(); } else { // 用户绘制的密码与传入的密码不同。 callback.checkedfail(); } } else { callback.ongesturecodeinput(passwordsb.tostring()); } break; default: break; } return true; } /** * 指定时间去清除绘制的状态 * @param delaytime 延迟执行时间 */ public void cleardrawlinestate(long delaytime) { if (delaytime > 0) { // 绘制红色提示路线 isdrawenable = false; drawerrorpathtip(); } new handler().postdelayed(new clearstaterunnable(), delaytime); } /** * 清除绘制状态的线程 */ final class clearstaterunnable implements runnable { public void run() { // 重置passwordsb passwordsb = new stringbuilder(); // 清空保存点的集合 linelist.clear(); // 重新绘制界面 clearscreenanddrawlist(); for (gesturepoint p : list) { p.setpointstate(constants.point_state_normal); } invalidate(); isdrawenable = true; } } /** * 通过点的位置去集合里面查找这个点是包含在哪个point里面的 * * @param x * @param y * @return 如果没有找到,则返回null,代表用户当前移动的地方属于点与点之间 */ private gesturepoint getpointat(int x, int y) { for (gesturepoint point : list) { // 先判断x int leftx = point.getleftx(); int rightx = point.getrightx(); if (!(x >= leftx && x < rightx)) { // 如果为假,则跳到下一个对比 continue; } int topy = point.gettopy(); int bottomy = point.getbottomy(); if (!(y >= topy && y < bottomy)) { // 如果为假,则跳到下一个对比 continue; } // 如果执行到这,那么说明当前点击的点的位置在遍历到点的位置这个地方 return point; } return null; } private gesturepoint getbetweencheckpoint(gesturepoint pointstart, gesturepoint pointend) { int startnum = pointstart.getnum(); int endnum = pointend.getnum(); string key = null; if (startnum < endnum) { key = startnum + "," + endnum; } else { key = endnum + "," + startnum; } return autocheckpointmap.get(key); } /** * 清掉屏幕上所有的线,然后画出集合里面的线 */ private void clearscreenanddrawlist() { canvas.drawcolor(color.transparent, porterduff.mode.clear); for (pair<gesturepoint, gesturepoint> pair : linelist) { canvas.drawline(pair.first.getcenterx(), pair.first.getcentery(), pair.second.getcenterx(), pair.second.getcentery(), paint);// 画线 } } /** * 校验错误/两次绘制不一致提示 */ private void drawerrorpathtip() { canvas.drawcolor(color.transparent, porterduff.mode.clear); paint.setcolor(color.rgb(154, 7, 21));// 设置默认线路颜色 for (pair<gesturepoint, gesturepoint> pair : linelist) { pair.first.setpointstate(constants.point_state_wrong); pair.second.setpointstate(constants.point_state_wrong); canvas.drawline(pair.first.getcenterx(), pair.first.getcentery(), pair.second.getcenterx(), pair.second.getcentery(), paint);// 画线 } invalidate(); } public interface gesturecallback { /** * 用户设置/输入了手势密码 */ public abstract void ongesturecodeinput(string inputcode); /** * 代表用户绘制的密码与传入的密码相同 */ public abstract void checkedsuccess(); /** * 代表用户绘制的密码与传入的密码不相同 */ public abstract void checkedfail(); } }
4.gestureeditactivity.java 手势密码设置界面
手势密码设置
代码如下:
package com.wujay.fund; import com.wujay.fund.r; import android.app.activity; import android.content.dialoginterface; import android.content.intent; import android.os.bundle; import android.text.html; import android.text.textutils; import android.view.keyevent; import android.view.view; import android.view.view.onclicklistener; import android.view.animation.animation; import android.view.animation.animationutils; import android.widget.framelayout; import android.widget.textview; import android.widget.toast; import com.wujay.fund.common.constants; import com.wujay.fund.widget.gesturecontentview; import com.wujay.fund.widget.gesturedrawline.gesturecallback; import com.wujay.fund.widget.lockindicator; /** * * 手势密码设置界面 * */ public class gestureeditactivity extends activity implements onclicklistener { /** 手机号码*/ public static final string param_phone_number = "param_phone_number"; /** 意图 */ public static final string param_intent_code = "param_intent_code"; /** 首次提示绘制手势密码,可以选择跳过 */ public static final string param_is_first_advice = "param_is_first_advice"; private textview mtexttitle; private textview mtextcancel; private lockindicator mlockindicator; private textview mtexttip; private framelayout mgesturecontainer; private gesturecontentview mgesturecontentview; private textview mtextreset; private string mparamsetupcode = null; private string mparamphonenumber; private boolean misfirstinput = true; private string mfirstpassword = null; private string mconfirmpassword = null; private int mparamintentcode; @override public void oncreate(bundle savedinstancestate) { super.oncreate(savedinstancestate); setcontentview(r.layout.activity_gesture_edit); setupviews(); setuplisteners(); } private void setupviews() { mtexttitle = (textview) findviewbyid(r.id.text_title); mtextcancel = (textview) findviewbyid(r.id.text_cancel); mtextreset = (textview) findviewbyid(r.id.text_reset); mtextreset.setclickable(false); mlockindicator = (lockindicator) findviewbyid(r.id.lock_indicator); mtexttip = (textview) findviewbyid(r.id.text_tip); mgesturecontainer = (framelayout) findviewbyid(r.id.gesture_container); // 初始化一个显示各个点的viewgroup mgesturecontentview = new gesturecontentview(this, false, "", new gesturecallback() { @override public void ongesturecodeinput(string inputcode) { if (!isinputpassvalidate(inputcode)) { mtexttip.settext(html.fromhtml("<font color='#c70c1e'>最少链接4个点, 请重新输入</font>")); mgesturecontentview.cleardrawlinestate(0l); return; } if (misfirstinput) { mfirstpassword = inputcode; updatecodelist(inputcode); mgesturecontentview.cleardrawlinestate(0l); mtextreset.setclickable(true); mtextreset.settext(getstring(r.string.reset_gesture_code)); } else { if (inputcode.equals(mfirstpassword)) { toast.maketext(gestureeditactivity.this, "设置成功", toast.length_short).show(); mgesturecontentview.cleardrawlinestate(0l); gestureeditactivity.this.finish(); } else { mtexttip.settext(html.fromhtml("<font color='#c70c1e'>与上一次绘制不一致,请重新绘制</font>")); // 左右移动动画 animation shakeanimation = animationutils.loadanimation(gestureeditactivity.this, r.anim.shake); mtexttip.startanimation(shakeanimation); // 保持绘制的线,1.5秒后清除 mgesturecontentview.cleardrawlinestate(1300l); } } misfirstinput = false; } @override public void checkedsuccess() { } @override public void checkedfail() { } }); // 设置手势解锁显示到哪个布局里面 mgesturecontentview.setparentview(mgesturecontainer); updatecodelist(""); } private void setuplisteners() { mtextcancel.setonclicklistener(this); mtextreset.setonclicklistener(this); } private void updatecodelist(string inputcode) { // 更新选择的图案 mlockindicator.setpath(inputcode); } @override public void onclick(view v) { switch (v.getid()) { case r.id.text_cancel: this.finish(); break; case r.id.text_reset: misfirstinput = true; updatecodelist(""); mtexttip.settext(getstring(r.string.set_gesture_pattern)); break; default: break; } } private boolean isinputpassvalidate(string inputpassword) { if (textutils.isempty(inputpassword) || inputpassword.length() < 4) { return false; } return true; } }
5.gestureverifyactivity.java 手势密码校验界面
代码如下:
package com.wujay.fund; import com.wujay.fund.r; import com.wujay.fund.widget.gesturecontentview; import com.wujay.fund.widget.gesturedrawline.gesturecallback; import android.app.activity; import android.app.dialog; import android.content.dialoginterface; import android.content.dialoginterface.onclicklistener; import android.content.intent; import android.os.bundle; import android.text.html; import android.text.textutils; import android.view.keyevent; import android.view.view; import android.view.animation.animation; import android.view.animation.animationutils; import android.widget.framelayout; import android.widget.imageview; import android.widget.relativelayout; import android.widget.textview; import android.widget.toast; /** * * 手势绘制/校验界面 * */ public class gestureverifyactivity extends activity implements android.view.view.onclicklistener { /** 手机号码*/ public static final string param_phone_number = "param_phone_number"; /** 意图 */ public static final string param_intent_code = "param_intent_code"; private relativelayout mtoplayout; private textview mtexttitle; private textview mtextcancel; private imageview mimguserlogo; private textview mtextphonenumber; private textview mtexttip; private framelayout mgesturecontainer; private gesturecontentview mgesturecontentview; private textview mtextforget; private textview mtextother; private string mparamphonenumber; private long mexittime = 0; private int mparamintentcode; @override public void oncreate(bundle savedinstancestate) { super.oncreate(savedinstancestate); setcontentview(r.layout.activity_gesture_verify); obtainextradata(); setupviews(); setuplisteners(); } private void obtainextradata() { mparamphonenumber = getintent().getstringextra(param_phone_number); mparamintentcode = getintent().getintextra(param_intent_code, 0); } private void setupviews() { mtoplayout = (relativelayout) findviewbyid(r.id.top_layout); mtexttitle = (textview) findviewbyid(r.id.text_title); mtextcancel = (textview) findviewbyid(r.id.text_cancel); mimguserlogo = (imageview) findviewbyid(r.id.user_logo); mtextphonenumber = (textview) findviewbyid(r.id.text_phone_number); mtexttip = (textview) findviewbyid(r.id.text_tip); mgesturecontainer = (framelayout) findviewbyid(r.id.gesture_container); mtextforget = (textview) findviewbyid(r.id.text_forget_gesture); mtextother = (textview) findviewbyid(r.id.text_other_account); // 初始化一个显示各个点的viewgroup mgesturecontentview = new gesturecontentview(this, true, "1235789", new gesturecallback() { @override public void ongesturecodeinput(string inputcode) { } @override public void checkedsuccess() { mgesturecontentview.cleardrawlinestate(0l); toast.maketext(gestureverifyactivity.this, "密码正确", 1000).show(); gestureverifyactivity.this.finish(); } @override public void checkedfail() { mgesturecontentview.cleardrawlinestate(1300l); mtexttip.setvisibility(view.visible); mtexttip.settext(html .fromhtml("<font color='#c70c1e'>密码错误</font>")); // 左右移动动画 animation shakeanimation = animationutils.loadanimation(gestureverifyactivity.this, r.anim.shake); mtexttip.startanimation(shakeanimation); } }); // 设置手势解锁显示到哪个布局里面 mgesturecontentview.setparentview(mgesturecontainer); } private void setuplisteners() { mtextcancel.setonclicklistener(this); mtextforget.setonclicklistener(this); mtextother.setonclicklistener(this); } private string getprotectedmobile(string phonenumber) { if (textutils.isempty(phonenumber) || phonenumber.length() < 11) { return ""; } stringbuilder builder = new stringbuilder(); builder.append(phonenumber.subsequence(0,3)); builder.append("****"); builder.append(phonenumber.subsequence(7,11)); return builder.tostring(); } @override public void onclick(view v) { switch (v.getid()) { case r.id.text_cancel: this.finish(); break; default: break; } } }
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