手勢密碼（三）
阿新 • • 發佈：2019-02-14
先看第一張圖片的佈局檔案
activity_main.xml
再看上面佈局的java程式碼<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" android:orientation="vertical" android:gravity="center_horizontal" > <TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_marginTop="40dip" android:textSize="24sp" android:text="手勢密碼" /> <Button android:id="@+id/btn_set_lockpattern" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_marginTop="50dip" android:text="設定手勢密碼" /> <Button android:id="@+id/btn_verify_lockpattern" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_marginTop="10dip" android:text="校驗手勢密碼" /> <TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_marginTop="10dip" android:text="密碼圖案是大2"/> </LinearLayout>
MainActivity
package com.wujay.fund; import android.app.Activity; import android.content.Intent; import android.os.Bundle; import android.view.View; import android.view.View.OnClickListener; import android.widget.Button; public class MainActivity extends Activity implements OnClickListener { private Button mBtnSetLock; private Button mBtnVerifyLock; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); setUpView(); setUpListener(); } private void setUpView() { mBtnSetLock = (Button) findViewById(R.id.btn_set_lockpattern); mBtnVerifyLock = (Button) findViewById(R.id.btn_verify_lockpattern); } private void setUpListener() { mBtnSetLock.setOnClickListener(this); mBtnVerifyLock.setOnClickListener(this); } @Override public void onClick(View v) { switch (v.getId()) { case R.id.btn_set_lockpattern: startSetLockPattern(); break; case R.id.btn_verify_lockpattern: startVerifyLockPattern(); break; default: break; } } private void startSetLockPattern() { Intent intent = new Intent(MainActivity.this, GestureEditActivity.class); startActivity(intent); } private void startVerifyLockPattern() { Intent intent = new Intent(MainActivity.this, GestureVerifyActivity.class); startActivity(intent); } }
另外看下工具類和bean類
AppUtil
package com.wujay.fund.common; import android.content.Context; import android.view.WindowManager; public class AppUtil { public static int[] getScreenDispaly(Context context) { WindowManager windowManager = (WindowManager) context .getSystemService(Context.WINDOW_SERVICE); int width = windowManager.getDefaultDisplay().getWidth();// 手機螢幕的寬度 int height = windowManager.getDefaultDisplay().getHeight();// 手機螢幕的高度 int result[] = { width, height }; return result; } }
再看9宮格的單位bean類
GesturePoint
package com.wujay.fund.entity;
import com.wujay.fund.R;
import com.wujay.fund.common.Constants;
import android.widget.ImageView;
public class GesturePoint {
/**
* 狀態值
*/
private int pointState;
/** 代表這個Point物件代表的數字，從1開始(直接感覺從1開始)*/
private int num;
private int leftX;
private int rightX;
private int topY;
private int bottomY;
private ImageView image;
private int centerX;
private int centerY;
public GesturePoint(int leftX, int rightX, int topY, int bottomY,
ImageView image, int num) {
super();
this.leftX = leftX;
this.rightX = rightX;
this.topY = topY;
this.bottomY = bottomY;
this.image = image;
this.centerX = (leftX + rightX) / 2;
this.centerY = (topY + bottomY) / 2;
this.num = num;
}
public int getLeftX() {
return leftX;
}
public void setLeftX(int leftX) {
this.leftX = leftX;
}
public int getRightX() {
return rightX;
}
public void setRightX(int rightX) {
this.rightX = rightX;
}
public int getTopY() {
return topY;
}
public void setTopY(int topY) {
this.topY = topY;
}
public int getBottomY() {
return bottomY;
}
public void setBottomY(int bottomY) {
this.bottomY = bottomY;
}
public ImageView getImage() {
return image;
}
public void setImage(ImageView image) {
this.image = image;
}
public int getCenterX() {
return centerX;
}
public void setCenterX(int centerX) {
this.centerX = centerX;
}
public int getCenterY() {
return centerY;
}
public void setCenterY(int centerY) {
this.centerY = centerY;
}
public int getPointState() {
return pointState;
}
public void setPointState(int state) {
pointState = state;
switch (state) {
case Constants.POINT_STATE_NORMAL:
this.image.setBackgroundResource(R.drawable.gesture_node_normal);
break;
case Constants.POINT_STATE_SELECTED:
this.image.setBackgroundResource(R.drawable.gesture_node_pressed);
break;
case Constants.POINT_STATE_WRONG:
this.image.setBackgroundResource(R.drawable.gesture_node_wrong);
break;
default:
break;
}
}
public int getNum() {
return num;
}
public void setNum(int num) {
this.num = num;
}
@Override
public int hashCode() {
final int prime = 31;
int result = 1;
result = prime * result + bottomY;
result = prime * result + ((image == null) ? 0 : image.hashCode());
result = prime * result + leftX;
result = prime * result + rightX;
result = prime * result + topY;
return result;
}
@Override
public boolean equals(Object obj) {
if (this == obj)
return true;
if (obj == null)
return false;
if (getClass() != obj.getClass())
return false;
GesturePoint other = (GesturePoint) obj;
if (bottomY != other.bottomY)
return false;
if (image == null) {
if (other.image != null)
return false;
} else if (!image.equals(other.image))
return false;
if (leftX != other.leftX)
return false;
if (rightX != other.rightX)
return false;
if (topY != other.topY)
return false;
return true;
}
@Override
public String toString() {
return "Point [leftX=" + leftX + ", rightX=" + rightX + ", topY="
+ topY + ", bottomY=" + bottomY + "]";
}
}
再看每個點位的3種狀態
Constants
package com.wujay.fund.common;
public class Constants {
public static final int POINT_STATE_NORMAL = 0; // 正常狀態
public static final int POINT_STATE_SELECTED = 1; // 按下狀態
public static final int POINT_STATE_WRONG = 2; // 錯誤狀態
}
再看來繪製密碼的介面
activity_gesture_edit.xml
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#48423D" >
<RelativeLayout
android:id="@+id/top_layout"
android:layout_width="match_parent"
android:layout_height="46dip"
android:background="#000000"
android:paddingLeft="20dip"
android:paddingRight="20dip"
android:layout_alignParentTop="true" >
<TextView
android:id="@+id/text_title"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerInParent="true"
android:gravity="center"
android:text="@string/setup_gesture_code"
android:textSize="20sp"
android:textColor="#ffffff" />
</RelativeLayout>
<LinearLayout
android:id="@+id/gesture_tip_layout"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_below="@id/top_layout"
android:gravity="center"
android:orientation="vertical" >
<TextView
android:id="@+id/text_tip"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:gravity="center_horizontal"
android:text="@string/set_gesture_pattern"
android:textColor="#F98F12"
android:layout_marginTop="10dip" />
</LinearLayout>
<FrameLayout
android:id="@+id/gesture_container"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@id/gesture_tip_layout"
android:layout_gravity="center_horizontal"
android:layout_marginTop="20dip" >
</FrameLayout>
<TextView
android:id="@+id/text_reset"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:gravity="center_horizontal"
android:layout_below="@id/gesture_container"
android:layout_marginTop="20dip"
android:text="@string/set_gesture_pattern_reason"
android:textColor="#816E6A" />
</RelativeLayout>
再看來繪製密碼的類
GestureEditActivity
package com.wujay.fund;
import com.wujay.fund.R;
import android.app.Activity;
import android.os.Bundle;
import android.text.Html;
import android.text.TextUtils;
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.widget.GestureContentView;
import com.wujay.fund.widget.GestureDrawline.GestureCallBack;
/**
* 手勢密碼設定介面
*/
public class GestureEditActivity extends Activity implements OnClickListener {
// 2次繪製手勢密碼不正確的提示語
private TextView mTextTip;
// 手勢密碼繪製區域
private FrameLayout mGestureContainer;
private GestureContentView mGestureContentView;
// 重新設定手勢密碼
private TextView mTextReset;
// 是否是第一次繪製密碼鎖
private boolean mIsFirstInput = true;
// 初次繪製完畢密碼鎖，生成的密碼
private String mFirstPassword = null;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_gesture_edit);
setUpViews();
setUpListeners();
}
/**
* 判斷初次繪製完畢生成的密碼判斷 判斷是不是為空 判斷密碼數量是不是小於4
*/
private boolean isInputPassValidate(String inputPassword) {
if (TextUtils.isEmpty(inputPassword) || inputPassword.length() < 4) {
return false;
}
return true;
}
private void setUpViews() {
// 重新設定手勢密碼
mTextReset = (TextView) findViewById(R.id.text_reset);
// 預設不可點選
mTextReset.setClickable(false);
// 2次繪製手勢密碼不正確的提示語
mTextTip = (TextView) findViewById(R.id.text_tip);
// 手勢密碼繪製區域
mGestureContainer = (FrameLayout) findViewById(R.id.gesture_container);
/**
* 初始化一個顯示各個點的viewGroup GestureContentView(Context context, boolean
* isVerify, String passWord, GestureCallBack callBack)
*/
mGestureContentView = new GestureContentView(this, false, "",
new GestureCallBack() {
@Override
public void onGestureCodeInput(String inputCode) {
// 驗證輸入的圖案密碼--如果密碼為null。或者密碼個數少於4個
if (!isInputPassValidate(inputCode)) {
mTextTip.setText(Html
.fromHtml("<font color='#c70c1e'>最少連結4個點, 請重新輸入</font>"));
// 立刻清楚畫的線段
mGestureContentView.clearDrawlineState(0L);
return;
}
if (mIsFirstInput) {
// 第一次輸入密碼--儲存第一次輸入的密碼，在進行跟第二次判斷
mFirstPassword = inputCode;
// 第一次輸入完畢後，立刻清楚畫的線段
mGestureContentView.clearDrawlineState(0L);
// 設定可以重新設定密碼鎖的狀態按鈕
mTextReset.setClickable(true);
mTextReset
.setText(getString(R.string.reset_gesture_code));
} else {
if (inputCode.equals(mFirstPassword)) {
Toast.makeText(GestureEditActivity.this,
"設定成功", Toast.LENGTH_SHORT).show();
mGestureContentView.clearDrawlineState(0L);
GestureEditActivity.this.finish();
} else {
mTextTip.setText(Html
.fromHtml("<font color='#c70c1e'>與上一次繪製不一致，請重新繪製</font>"));
// 左右移動動畫
Animation shakeAnimation = AnimationUtils
.loadAnimation(
GestureEditActivity.this,
R.anim.shake);
mTextTip.startAnimation(shakeAnimation);
// 保持繪製的線，1.5秒後清除
mGestureContentView.clearDrawlineState(1300L);
}
}
mIsFirstInput = false;
}
@Override
public void checkedSuccess() {
}
@Override
public void checkedFail() {
}
});
// 設定手勢解鎖顯示到哪個佈局裡面
mGestureContentView.setParentView(mGestureContainer);
}
/*****************************************************/
private void setUpListeners() {
mTextReset.setOnClickListener(this);
}
@Override
public void onClick(View v) {
switch (v.getId()) {
case R.id.text_reset:
mIsFirstInput = true;
mTextTip.setText(getString(R.string.set_gesture_pattern));
break;
default:
break;
}
}
}
GestureContentView
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 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
* 使用者傳入密碼
* @param callBack
* 手勢繪製完畢的回撥
*/
private int[] screenDispaly;
// 將螢幕寬度分成3份
private int blockWidth;
// 9個點位的集合
private List<GesturePoint> list;
// 環境
private Context context;
// 是否需要校驗密碼
private boolean isVerify;
public GestureContentView(Context context, boolean isVerify,
String passWord, GestureCallBack callBack) {
super(context);
// 獲取螢幕寬度
screenDispaly = AppUtil.getScreenDispaly(context);
// 獲取螢幕寬度的1/3
blockWidth = screenDispaly[0] / 3;
this.list = new ArrayList<GesturePoint>();
this.context = context;
this.isVerify = isVerify;
// 新增9個圖示
addChild();
// 初始化一個可以畫線的view
gestureDrawline = new GestureDrawline(context, list, isVerify,
passWord, callBack);
}
/**
* 新增9個圓點的圖示
*/
// 用來計算2個圓心之間的一半距離大小
private int baseNum = 6;
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---012 0 ，345 1， 678 2--
int row = i / 3;
// 第幾列---012 012 ， 345 012 ， 678 012
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;
// 構建圓點物件
GesturePoint p = new GesturePoint(leftX, rightX, topY, bottomY,
image, i + 1);
// 新增9個圓點圖示
this.list.add(p);
}
}
/**
* 設定手勢解鎖顯示到哪個佈局裡面
*/
public void setParentView(ViewGroup parent) {
// 得到螢幕的寬度
int width = screenDispaly[0];
// 設定手勢鎖的寬度高度--以螢幕的寬為基準
LayoutParams layoutParams = new LayoutParams(width, width);
// 設定手勢鎖的寬度高度--以螢幕的寬為基準
this.setLayoutParams(layoutParams);
// 將線路繪製也做同樣的操作
gestureDrawline.setLayoutParams(layoutParams);
parent.addView(gestureDrawline);
parent.addView(this);
}
/************************************** 繪製圓點位操作 ****************************************/
@Override
protected void onLayout(boolean changed, int l, int t, int r, int b) {
// 迴圈獲取裡面的每一個圓點位
for (int i = 0; i < getChildCount(); i++) {
// 第幾行
int row = i / 3;
// 第幾列
int col = i % 3;
// 獲取對應的圓點位
View v = getChildAt(i);
// 進行圓點位的繪製操作
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);
// 遍歷設定每個子view的大小
for (int i = 0; i < getChildCount(); i++) {
View v = getChildAt(i);
v.measure(widthMeasureSpec, heightMeasureSpec);
}
}
/**
* 對外暴露一個方法---用於清楚密碼鎖上的線段 保留路徑delayTime時間長
*
* @param delayTime
*/
public void clearDrawlineState(long delayTime) {
gestureDrawline.clearDrawlineState(delayTime);
}
}
GestureDrawline
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;
/**
* 手勢密碼路徑繪製
*
*/
public class GestureDrawline extends View {
private int mov_x;// 宣告起點座標
private int mov_y;
private Map<String, GesturePoint> autoCheckPointMap;// 自動選中的情況點
private boolean isDrawEnable = true; // 是否允許繪製
/**********************************************************************
* 建構函式
*/
private int[] screenDispaly;
private Paint paint;// 宣告畫筆
private Canvas canvas;// 畫布
private Bitmap bitmap;// 點陣圖
private List<GesturePoint> list;// 裝有各個view座標的集合
private List<Pair<GesturePoint, GesturePoint>> lineList;// 記錄畫過的線
private StringBuilder passWordSb;
private boolean isVerify;
private String passWord;
private GestureCallBack callBack;
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);// 建立一個畫筆
bitmap = Bitmap.createBitmap(screenDispaly[0], screenDispaly[0],
Bitmap.Config.ARGB_8888); // 設定點陣圖的寬高
canvas = new Canvas();
canvas.setBitmap(bitmap);// 用宣告的畫筆在點陣圖上畫點位
paint.setStyle(Style.STROKE);// 設定非填充
paint.setStrokeWidth(10);// 筆寬5畫素
paint.setColor(Color.rgb(245, 142, 33));// 設定預設連線顏色
paint.setAntiAlias(true);// 不顯示鋸齒
this.list = list;
this.lineList = new ArrayList<Pair<GesturePoint, GesturePoint>>();
initAutoCheckPointMap();
this.callBack = callBack;
// 初始化密碼快取
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;
}
/**********************************************************
* 畫點陣圖
*/
@Override
protected void onDraw(Canvas canvas) {
canvas.drawBitmap(bitmap, 0, 0, paint);
}
/**
* 通過點的位置去集合裡面查詢這個點是包含在哪個Point裡面的
*
* @return 如果沒有找到，則返回null，代表使用者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，那麼說明當前點選的點的位置在遍歷到點的位置這個地方
return point;
}
return null;
}
/**
* 清掉螢幕上所有的線，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) {
// drawLine(float startX, float startY, float stopX, float stopY,
// Paint paint)
canvas.drawLine(pair.first.getCenterX(), pair.first.getCenterY(),
pair.second.getCenterX(), pair.second.getCenterY(), paint);// 畫線
}
}
/**
* 判斷是否中間點需要選中
*
* @param pointStart
* @param pointEnd
* @return
*/
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);
}
/**
* 觸控事件
*/
private GesturePoint currentPoint;
@Override
public boolean onTouchEvent(MotionEvent event) {
if (isDrawEnable == false) {
// 如果圓點圖片呈現紅色的底片--也就是二次繪製錯誤，在沒有清楚繪製的線段的情況下，不再允許繪製線條
return true;
}
paint.setColor(Color.rgb(245, 142, 33));// 設定預設連線顏色
switch (event.getAction()) {
case MotionEvent.ACTION_DOWN:
// 滑鼠按下後，獲取手指點位的xy座標
mov_x = (int) event.getX();
mov_y = (int) event.getY();
// 判斷當前點選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());
}
invalidate();
break;
case MotionEvent.ACTION_MOVE:
// 清掉螢幕上所有的線，然後畫出集合裡面的線--不然的話不是一條線
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());
// 代表當前使用者手指處於點與點之前
if (currentPoint == null && pointAt == null) {
return true;
} else {// 代表使用者的手指從點與點之間移動到了點上
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這個點設定選中為true;
currentPoint.setPointState(Constants.POINT_STATE_SELECTED);
passWordSb.append(currentPoint.getNum());
}
}
if (pointAt == null || currentPoint.equals(pointAt)) {
// 點選移動區域不在圓的區域，或者當前點選的點與當前移動到的點的位置相同
// 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 {
// 如果當前點選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());
// 設定中間點選中
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:// 當手指擡起的時候
if (isVerify) {
// 手勢密碼校驗
// 清掉螢幕上所有的線，只畫上集合裡面儲存的線
if (passWord.equals(passWordSb.toString())) {
// 代表使用者繪製的密碼手勢與傳入的密碼相同
callBack.checkedSuccess();
} else {
// 使用者繪製的密碼與傳入的密碼不同。
callBack.checkedFail();
}
} else {
callBack.onGestureCodeInput(passWordSb.toString());
}
break;
default:
break;
}
return true;
}
/************************************
* 校驗錯誤/兩次繪製不一致提示
*/
private void drawErrorPathTip() {
canvas.drawColor(Color.TRANSPARENT, PorterDuff.Mode.CLEAR);
paint.setColor(Color.rgb(154, 7, 21));// 設定預設線路顏色
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();
}
/**
* 指定時間去清除繪製的狀態
*
* @param delayTime
* 延遲執行時間
*/
public void clearDrawlineState(long delayTime) {
if (delayTime > 0) {
// 繪製紅色提示路線
isDrawEnable = false;
drawErrorPathTip();
}
new Handler().postDelayed(new clearStateRunnable(), delayTime);
}
/*************************************************
* 清除繪製狀態的執行緒
*/
final class clearStateRunnable implements Runnable {
public void run() {
// 重置passWordSb
passWordSb = new StringBuilder();
// 清空儲存點的集合
lineList.clear();
// 重新繪製介面
clearScreenAndDrawList();
for (GesturePoint p : list) {
p.setPointState(Constants.POINT_STATE_NORMAL);
}
invalidate();
isDrawEnable = true;
}
}
public interface GestureCallBack {
/**
* 使用者設定/輸入了手勢密碼
*/
public abstract void onGestureCodeInput(String inputCode);
/**
* 代表使用者繪製的密碼與傳入的密碼相同
*/
public abstract void checkedSuccess();
/**
* 代表使用者繪製的密碼與傳入的密碼不相同
*/
public abstract void checkedFail();
}
}
接下來看驗證密碼鎖的佈局
activity_gesture_verify.xml
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#48443c" >
<LinearLayout
android:id="@+id/gesture_tip_layout"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_below="@id/top_layout"
android:orientation="vertical"
android:paddingTop="20dip" >
<TextView
android:id="@+id/text_tip"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_marginTop="10dip"
android:gravity="center_horizontal"
android:textColor="#000000"
android:visibility="invisible" />
</LinearLayout>
<FrameLayout
android:id="@+id/gesture_container"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@id/gesture_tip_layout" >
</FrameLayout>
</RelativeLayout>驗證密碼的程式碼實現類
GestureVerifyActivity
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;
/**
* 手勢繪製/校驗介面
*/
public class GestureVerifyActivity extends Activity{
private TextView mTextTip;
private FrameLayout mGestureContainer;
private GestureContentView mGestureContentView;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_gesture_verify);
setUpViews();
}
private void setUpViews() {
//驗證失敗的錯誤提示
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, true, "12589",
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);
}
});
// 設定手勢解鎖顯示到哪個佈局裡面
mGestureContentView.setParentView(mGestureContainer);
}
}
shake.xml
<?xml version="1.0" encoding="utf-8"?>
<translate xmlns:android="http://schemas.android.com/apk/res/android"
android:fromXDelta="0"
android:toXDelta="10"
android:duration="120"
android:interpolator="@android:anim/cycle_interpolator"
android:repeatMode="restart"
android:repeatCount="2"/>