Android手勢密碼實現方案

jopen 10年前發布 | 96K 次閱讀 Android Android開發移動開發

前段時間因產品需求，做了一個手勢密碼，跟支付寶的手勢密碼類似，這里跟大家分享交流一下我實現的方式吧。

這篇來分享一下繪制手勢密碼的實現（主要是設置手勢密碼、校驗手勢密碼）：

一、大致界面介紹：

圖1

圖2

圖3

圖4

圖1：手勢密碼繪制界面【主要是繪制上方的9個提示圖標和9個宮格密碼圖標】

圖2：設置手勢密碼【監聽手勢的輸入，TouchEvent的事件處理，獲取輸入的手勢密碼，同時顯示在上方的提示區域】

圖3：再繪制一次，兩次密碼不一致提示界面【這里在實現的時候，錯誤提示文字加了“左右晃動的動畫”，錯誤路徑顏色標記為紅色】

圖4：校驗手勢密碼，輸入的密碼錯誤，給予紅色路徑+錯誤文字提示

二、實現思路：

1. 正上方的提示區域，用一個類(LockIndicator.java)來實現，自定義view來繪制9個提示圖標；

2. 手勢密碼繪制區域，用一個類(GestureContentView.java)來實現，它繼承自ViewGroup里面, 添加9個ImageView來表示圖標, 在onLayout（）方法中設置它們的位置；

3. 手勢路徑繪制，用一個類(GestureDrawline.java)來實現，復寫onTouchEvent()方法，在這個方法里面監聽TouchEvent事件: ACTION_DOWN、ACTION_MOVE、ACTION_UP事件，來繪制手勢連接不同點之間的路徑；

4. 9個點的對象，用一個類(GesturePoint.java)來實現，保存它的位置、狀態、背景圖片等相關信息；

5. 手勢密碼的獲取，判斷手指當前的位置，根據滑動路徑經過的點，按順序保存繪制的點的順序(這里的點順序從上到下分別是：1,2,3,4,5,6,7,8,9)，不能有重復的點。

三、代碼實現步驟：

1.要用一個類來表示這9個點中的第一個點。里面保留有當前點的上下左右的各個位置等屬性

2.自定義GroupView，用來裝9個點，9個點的顯示是通過ImageView。復寫onLayout這個方法，讓點按需求排列

3.定義一個可以畫線的View，復寫onTouchEvent方法，在這個方法里面進行畫直線的操作

4.判斷用戶手指當前的位置，取出當前的位置去與那9個點中的每個點的位置進行比較，如果用戶點的位置在某一個點之內，那么當那個點置換背景圖片。

具體實現代碼如下：

1. LockIndicator.java 圖案提示類

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;

/**
 * 
 * 手勢密碼圖案提示
 * @author wulianghuan
 *
 */
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; // 手勢密碼

    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;
        }
        // 繪制3*3的圖標
        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) {
                        // 未選中
                        patternNoraml.draw(canvas);
                    } else {
                        // 被選中
                        patternPressed.draw(canvas);
                    }
                } else {
                    // 重置狀態
                    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));
    }

    /**
     * 請求重新繪制
     * @param paramString 手勢密碼字符序列
     */
    public void setPath(String paramString) {
        lockPassStr = paramString;
        invalidate();
    }

}

2. GestureContentView.java 手勢密碼容器類

它繼承ViewGroup，通過addView()方法添加子viewe，手勢密碼的9個輸入點(GesturePoint)、GestureDrawline手勢密碼路徑都放在這個容器當中，下面是它的具體實現方法：

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;

/**
 * 手勢密碼容器類
 *
 */
public class GestureContentView extends ViewGroup {

    private int baseNum = 6;

    private int[] screenDispaly;

    /**
     * 每個點區域的寬度
     */
    private int blockWidth;
    /**
     * 聲明一個集合用來封裝坐標集合
     */
    private List<GesturePoint> list;
    private Context context;
    private boolean isVerify;
    private GestureDrawline gestureDrawline;

    /**
     * 包含9個ImageView的容器，初始化
     * @param context
     * @param isVerify 是否為校驗手勢密碼
     * @param passWord 用戶傳入密碼
     * @param callBack 手勢繪制完畢的回調
     */
    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個圖標
        addChild();
        // 初始化一個可以畫線的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();
            // 第幾行
            int row = i / 3;
            // 第幾列
            int col = i % 3;
            // 定義點的每個屬性
            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){
        // 得到屏幕的寬度
        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++) {
            //第幾行
            int row = i/3;
            //第幾列
            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);
        // 遍歷設置每個子view的大小
        for (int i = 0; i < getChildCount(); i++) {
            View v = getChildAt(i);
            v.measure(widthMeasureSpec, heightMeasureSpec);
        }
    }

    /**
     * 保留路徑delayTime時間長
     * @param delayTime
     */
    public void clearDrawlineState(long delayTime) {
        gestureDrawline.clearDrawlineState(delayTime);
    }

}

3. GestureDrawline.java 手勢密碼路徑繪制類

根據OnTouchEvent方法的不同事件，ACTION_DOWN、ACTION_MOVE、ACTION_UP分別處理不同的邏輯。

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;

/**
 * 手勢密碼路徑繪制
 *
 */
public class GestureDrawline extends View {
    private int mov_x;// 聲明起點坐標
    private int mov_y;
    private Paint paint;// 聲明畫筆
    private Canvas canvas;// 畫布
    private Bitmap bitmap;// 位圖
    private List<GesturePoint> list;// 裝有各個view坐標的集合
    private List<Pair<GesturePoint, GesturePoint>> lineList;// 記錄畫過的線
    private Map<String, GesturePoint> autoCheckPointMap;// 自動選中的情況點
    private boolean isDrawEnable = true; // 是否允許繪制

    /**
     * 屏幕的寬度和高度
     */
    private int[] screenDispaly;

    /**
     * 手指當前在哪個Point內
     */
    private GesturePoint currentPoint;
    /**
     * 用戶繪圖的回調
     */
    private GestureCallBack callBack;

    /**
     * 用戶當前繪制的圖形密碼
     */
    private StringBuilder passWordSb;

    /**
     * 是否為校驗
     */
    private boolean isVerify;

    /**
     * 用戶傳入的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);// 創建一個畫筆
        bitmap = Bitmap.createBitmap(screenDispaly[0], screenDispaly[0], Bitmap.Config.ARGB_8888); // 設置位圖的寬高
        canvas = new Canvas();
        canvas.setBitmap(bitmap);
        paint.setStyle(Style.STROKE);// 設置非填充
        paint.setStrokeWidth(10);// 筆寬5像素
        paint.setColor(Color.rgb(245, 142, 33));// 設置默認連線顏色
        paint.setAntiAlias(true);// 不顯示鋸齒

        this.list = list;
        this.lineList = new ArrayList<Pair<GesturePoint, GesturePoint>>();

        initAutoCheckPointMap();
        this.callBack = callBack;

        // 初始化密碼緩存
        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;
    }

    // 畫位圖
    @Override
    protected void onDraw(Canvas canvas) {
        // super.onDraw(canvas);
        canvas.drawBitmap(bitmap, 0, 0, null);
    }

    // 觸摸事件
    @Override
    public boolean onTouchEvent(MotionEvent event) {
        if (isDrawEnable == false) {
            // 當期不允許繪制
            return true;
        }
        paint.setColor(Color.rgb(245, 142, 33));// 設置默認連線顏色
        switch (event.getAction()) {
        case MotionEvent.ACTION_DOWN:
            mov_x = (int) event.getX();
            mov_y = (int) event.getY();
            // 判斷當前點擊的位置是處于哪個點之內
            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);// 畫點
            invalidate();
            break;
        case MotionEvent.ACTION_MOVE:
            clearScreenAndDrawList();

            // 得到當前移動位置是處于哪個點內
            GesturePoint pointAt = getPointAt((int) event.getX(), (int) event.getY());
            // 代表當前用戶手指處于點與點之前
            if (currentPoint == null && pointAt == null) {
                return true;
            } else {// 代表用戶的手指移動到了點上
                if (currentPoint == null) {// 先判斷當前的point是不是為null
                    // 如果為空，那么把手指移動到的點賦值給currentPoint
                    currentPoint = pointAt;
                    // 把currentPoint這個點設置選中為true;
                    currentPoint.setPointState(Constants.POINT_STATE_SELECTED);
                    passWordSb.append(currentPoint.getNum());
                }
            }
            if (pointAt == null || currentPoint.equals(pointAt) || Constants.POINT_STATE_SELECTED == pointAt.getPointState()) {
                // 點擊移動區域不在圓的區域，或者當前點擊的點與當前移動到的點的位置相同，或者當前點擊的點處于選中狀態
                // 那么以當前的點中心為起點，以手指移動位置為終點畫線
                canvas.drawLine(currentPoint.getCenterX(), currentPoint.getCenterY(), event.getX(), event.getY(), paint);// 畫線
            } else {
                // 如果當前點擊的點與當前移動到的點的位置不同
                // 那么以前前點的中心為起點，以手移動到的點的位置畫線
                canvas.drawLine(currentPoint.getCenterX(), currentPoint.getCenterY(), pointAt.getCenterX(), pointAt.getCenterY(), paint);// 畫線
                pointAt.setPointState(Constants.POINT_STATE_SELECTED);

                // 判斷是否中間點需要選中
                GesturePoint betweenPoint = getBetweenCheckPoint(currentPoint, pointAt);
                if (betweenPoint != null && Constants.POINT_STATE_SELECTED != betweenPoint.getPointState()) {
                    // 存在中間點并且沒有被選中
                    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());
                    // 設置中間點選中
                    betweenPoint.setPointState(Constants.POINT_STATE_SELECTED);
                    // 賦值當前的point;
                    currentPoint = pointAt;
                } else {
                    Pair<GesturePoint, GesturePoint> pair = new Pair<GesturePoint, GesturePoint>(currentPoint, pointAt);
                    lineList.add(pair);
                    passWordSb.append(pointAt.getNum());
                    // 賦值當前的point;
                    currentPoint = pointAt;
                }
            }
            invalidate();
            break;
        case MotionEvent.ACTION_UP:// 當手指抬起的時候
            if (isVerify) {
                // 手勢密碼校驗
                // 清掉屏幕上所有的線，只畫上集合里面保存的線
                if (passWord.equals(passWordSb.toString())) {
                    // 代表用戶繪制的密碼手勢與傳入的密碼相同
                    callBack.checkedSuccess();
                } else {
                    // 用戶繪制的密碼與傳入的密碼不同。
                    callBack.checkedFail();
                }
            } else {
                callBack.onGestureCodeInput(passWordSb.toString());
            }
            break;
        default:
            break;
        }
        return true;
    }

    /**
     * 指定時間去清除繪制的狀態
     * @param delayTime 延遲執行時間
     */
    public void clearDrawlineState(long delayTime) {
        if (delayTime > 0) {
            // 繪制紅色提示路線
            isDrawEnable = false;
            drawErrorPathTip();
        }
        new Handler().postDelayed(new clearStateRunnable(), delayTime);
    }

    /**
     * 清除繪制狀態的線程
     */
    final class clearStateRunnable implements Runnable {
        public void run() {
            // 重置passWordSb
            passWordSb = new StringBuilder();
            // 清空保存點的集合
            lineList.clear();
            // 重新繪制界面
            clearScreenAndDrawList();
            for (GesturePoint p : list) {
                p.setPointState(Constants.POINT_STATE_NORMAL);
            }
            invalidate();
            isDrawEnable = true;
        }
    }

    /**
     * 通過點的位置去集合里面查找這個點是包含在哪個Point里面的
     * 
     * @param x
     * @param y
     * @return 如果沒有找到，則返回null，代表用戶當前移動的地方屬于點與點之間
     */
    private GesturePoint getPointAt(int x, int y) {

        for (GesturePoint point : list) {
            // 先判斷x
            int leftX = point.getLeftX();
            int rightX = point.getRightX();
            if (!(x >= leftX && x < rightX)) {
                // 如果為假，則跳到下一個對比
                continue;
            }

            int topY = point.getTopY();
            int bottomY = point.getBottomY();
            if (!(y >= topY && y < bottomY)) {
                // 如果為假，則跳到下一個對比
                continue;
            }

            // 如果執行到這，那么說明當前點擊的點的位置在遍歷到點的位置這個地方
            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);
    }

    /**
     * 清掉屏幕上所有的線，然后畫出集合里面的線
     */
    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);// 畫線
        }
    }

    /**
     * 校驗錯誤/兩次繪制不一致提示
     */
    private void drawErrorPathTip() {
        canvas.drawColor(Color.TRANSPARENT, PorterDuff.Mode.CLEAR);
        paint.setColor(Color.rgb(154, 7, 21));// 設置默認線路顏色
        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);// 畫線
        }
        invalidate();
    }

    public interface GestureCallBack {

        /**
         * 用戶設置/輸入了手勢密碼
         */
        public abstract void onGestureCodeInput(String inputCode);

        /**
         * 代表用戶繪制的密碼與傳入的密碼相同
         */
        public abstract void checkedSuccess();

        /**
         * 代表用戶繪制的密碼與傳入的密碼不相同
         */
        public abstract void checkedFail();
    }

}

4.GestureEditActivity.java 手勢密碼設置界面

手勢密碼設置

代碼如下：

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;

/**
 * 
 * 手勢密碼設置界面
 *
 */
public class GestureEditActivity extends Activity implements OnClickListener {
    /** 手機號碼*/
    public static final String PARAM_PHONE_NUMBER = "PARAM_PHONE_NUMBER";
    /** 意圖 */
    public static final String PARAM_INTENT_CODE = "PARAM_INTENT_CODE";
    /** 首次提示繪制手勢密碼，可以選擇跳過 */
    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);
        // 初始化一個顯示各個點的viewGroup
        mGestureContentView = new GestureContentView(this, false, "", new GestureCallBack() {
            @Override
            public void onGestureCodeInput(String inputCode) {
                if (!isInputPassValidate(inputCode)) {
                    mTextTip.setText(Html.fromHtml("<font color='#c70c1e'>最少鏈接4個點, 請重新輸入</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, "設置成功", Toast.LENGTH_SHORT).show();
                        mGestureContentView.clearDrawlineState(0L);
                        GestureEditActivity.this.finish();
                    } else {
                        mTextTip.setText(Html.fromHtml("<font color='#c70c1e'>與上一次繪制不一致，請重新繪制</font>"));
                        // 左右移動動畫
                        Animation shakeAnimation = AnimationUtils.loadAnimation(GestureEditActivity.this, R.anim.shake);
                        mTextTip.startAnimation(shakeAnimation);
                        // 保持繪制的線，1.5秒后清除
                        mGestureContentView.clearDrawlineState(1300L);
                    }
                }
                mIsFirstInput = false;
            }

            @Override
            public void checkedSuccess() {

            }

            @Override
            public void checkedFail() {

            }
        });
        // 設置手勢解鎖顯示到哪個布局里面
        mGestureContentView.setParentView(mGestureContainer);
        updateCodeList("");
    }

    private void setUpListeners() {
        mTextCancel.setOnClickListener(this);
        mTextReset.setOnClickListener(this);
    }

    private void updateCodeList(String inputCode) {
        // 更新選擇的圖案
        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 手勢密碼校驗界面

代碼如下：

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;

/**
 * 
 * 手勢繪制/校驗界面
 *
 */
public class GestureVerifyActivity extends Activity implements android.view.View.OnClickListener {
    /** 手機號碼*/
    public static final String PARAM_PHONE_NUMBER = "PARAM_PHONE_NUMBER";
    /** 意圖 */
    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);

        // 初始化一個顯示各個點的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, "密碼正確", 1000).show();
                        GestureVerifyActivity.this.finish();
                    }

                    @Override
                    public void checkedFail() {
                        mGestureContentView.clearDrawlineState(1300L);
                        mTextTip.setVisibility(View.VISIBLE);
                        mTextTip.setText(Html
                                .fromHtml("<font color='#c70c1e'>密碼錯誤</font>"));
                        // 左右移動動畫
                        Animation shakeAnimation = AnimationUtils.loadAnimation(GestureVerifyActivity.this, R.anim.shake);
                        mTextTip.startAnimation(shakeAnimation);
                    }
                });
        // 設置手勢解鎖顯示到哪個布局里面
        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;
        }
    }

}

以上是手勢密碼實現的關鍵代碼，我把項目中的模塊代碼整理出來，新建了一個project，供大家分享和交流

源碼下載地址：http://download.csdn.net/detail/wulianghuan/8115995

來源：wulianghuan的專欄

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