Android手勢密碼的實現

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 【這裡在實現的時候，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裡面, 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，在這個方法裡面監聽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(這裡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。裡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，在這個方法裡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，那麼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於哪個點之內 
      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於哪個點內 
      GesturePoint pointAt = getPointAt((int) event.getX(), (int) event.getY()); 
      // 代表當前用戶手指處於點與點之前 
      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，那麼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於選中狀態 
        // 那麼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 
        // 那麼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()) { 
          // 存在中間點並且沒有被選中 
          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，只畫上集合裡面保存的線 
        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裡面查找這個點是包含在哪個Point裡面的 
   * 
   * @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於點與點之間 
   */ 
  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，那麼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，然後畫出集合裡面的線 
   */ 
  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秒後清除 
            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裡面 
    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裡面 
    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。欲了解更多資訊請登錄本站網站了解！