Download Source Code of Improved Version of Android Custom UI Gesture Password

Building on the foundation of previous articles, let's share another one with you: Android gesture password, including source code download, don't miss it.

Source Code Download:http://xiazai.jb51.net/201610/yuanma/androidLock(jb51.net).rar

Let's take a look at the layout file of the first picture

activity_main.xml

<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="gesture password" /> 
 <Button 
 android:id="@"+id/btn_set_lockpattern" 
 android:layout_width="wrap_content" 
 android:layout_height="wrap_content" 
 android:layout_marginTop="50dip" 
 android:text="Set gesture password" /> 
 <Button 
 android:id="@"+id/btn_verify_lockpattern" 
 android:layout_width="wrap_content" 
 android:layout_height="wrap_content" 
 android:layout_marginTop="10dip" 
 android:text="Verify gesture password" /> 
 <TextView 
 android:layout_width="wrap_content" 
 android:layout_height="wrap_content" 
 android:layout_marginTop="10dip" 
 android:text="The password pattern is large"2"/> 
</LinearLayout>

See the Java code above the layout
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); 
 } 
}

Let's also take a look at the utility class and bean class
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();// mobile screen width 
 int height = windowManager.getDefaultDisplay().getHeight();// mobile screen height 
 int result[] = { width, height }; 
 return result; 
 } 
}

Let's take a look at9Grid unit bean class
GesturePoint

package com.wujay.fund.entity; 
import com.wujay.fund.R; 
import com.wujay.fund.common.Constants; 
import android.widget.ImageView; 
public class GesturePoint { 
 /** 
 * status value 
 */ 
 private int pointState; 
 /** representing the number represented by this Point object, from1start(Feel directly from1start)*/ 
 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)63; 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 + "]"; 
 } 
}

Let's take a look at each position's3types
Constants

package com.wujay.fund.common; 
public class Constants { 
public static final int POINT_STATE_NORMAL = 0; // Normal state 
public static final int POINT_STATE_SELECTED = 1; // Press state 
public static final int POINT_STATE_WRONG = 2; // Error state 
}

Let's take a look at the interface for drawing the password
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>

Let's take a look at the class for drawing the password
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; 
/** 
 * Gesture password setting interface 
 */ 
public class GestureEditActivity extends Activity implements OnClickListener { 
 // 2prompt message for incorrect gesture password drawing 
 private TextView mTextTip; 
 // area for drawing gesture password 
 private FrameLayout mGestureContainer; 
 private GestureContentView mGestureContentView; 
 // Reset the gesture password 
 private TextView mTextReset; 
 // Is it the first time to draw the password lock? 
 private boolean mIsFirstInput = true; 
 // Password lock generated after the first drawing is completed 
 private String mFirstPassword = null; 
 @Override 
 public void onCreate(Bundle savedInstanceState) { 
 super.onCreate(savedInstanceState); 
 setContentView(R.layout.activity_gesture_edit); 
 setUpViews(); 
 setUpListeners(); 
 } 
 /** 
 * Determine if the password generated after the first drawing is empty and the number of password characters is less than4 
 */ 
 private boolean isInputPassValidate(String inputPassword) { 
 if (TextUtils.isEmpty(inputPassword) || inputPassword.length() < 4) { 
  return false; 
 } 
 return true; 
 } 
 private void setUpViews() { 
 // Reset the gesture password 
 mTextReset = (TextView) findViewById(R.id.text_reset); 
 // Default not clickable 
 mTextReset.setClickable(false); 
 // 2prompt message for incorrect gesture password drawing 
 mTextTip = (TextView) findViewById(R.id.text_tip); 
 // area for drawing gesture password 
 mGestureContainer = (FrameLayout) findViewById(R.id.gesture_container); 
 /** 
  * Initialize a viewGroup to display individual points GestureContentView(Context context, boolean 
  * isVerify, String passWord, GestureCallBack callBack) 
  */ 
 mGestureContentView = new GestureContentView(this, false, "", 
  new GestureCallBack() { 
   @Override 
   public void onGestureCodeInput(String inputCode) { 
   // Verify the input pattern password--If the password is null or the number of password characters is less than4points 
   if (!isInputPassValidate(inputCode)) { 
    mTextTip.setText(Html 
     .fromHtml("<font color='#c70c1e'>minimum connections4points, please re-enter </font>")); 
    // Immediately clear the drawn line segments 
    mGestureContentView.clearDrawlineState(0L); 
    return; 
   } 
   if (mIsFirstInput) { 
    // First input password--Save the first input password for comparison with the second input 
    mFirstPassword = inputCode; 
    // Immediately clear the drawn line segments after the first input is completed 
    mGestureContentView.clearDrawlineState(0L); 
    // Set the button to enable re-setting the password lock state 
    mTextReset.setClickable(true); 
    mTextReset 
     .setText(getString(R.string.reset_gesture_code)); 
   } 
    if (inputCode.equals(mFirstPassword)) { 
    Toast.makeText(GestureEditActivity.this, 
     "Set successfully", Toast.LENGTH_SHORT).show(); 
    mGestureContentView.clearDrawlineState(0L); 
    GestureEditActivity.this.finish(); 
    } 
    mTextTip.setText(Html 
     .fromHtml("<font color='#c70c1e'>Does not match the previous drawing, please redraw</font>")); 
    // Left and right moving animation 
    Animation shakeAnimation = AnimationUtils 
     .loadAnimation( 
      GestureEditActivity.this, 
      R.anim.shake); 
    mTextTip.startAnimation(shakeAnimation); 
    // Keep the drawn line,1.5seconds later clear 
    mGestureContentView.clearDrawlineState(1300L); 
    } 
   } 
   mIsFirstInput = false; 
   } 
   @Override 
   public void checkedSuccess() { 
   } 
   @Override 
   public void checkedFail() { 
   } 
  }); 
 // Set the layout where the gesture unlock is displayed 
 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; 
/** 
 * Gesture password container class 
 */ 
public class GestureContentView extends ViewGroup { 
 private GestureDrawline gestureDrawline; 
 /************************************************************************ 
 * Contains9A container for a set of ImageView, initialization 
 * 
 * @param context 
 * @param isVerify 
 *  Whether it is a verification gesture password 
 * @param passWord 
 *  User-entered password 
 * @param callBack 
 *  Callback after gesture drawing is completed 
 */ 
 private int[] screenDispaly; 
 // Divide the screen width into3Piece 
 private int blockWidth; 
 // 9A set of points 
 private List<GesturePoint> list; 
 // Environment 
 private Context context; 
 // Whether to verify the password 
 private boolean isVerify; 
 public GestureContentView(Context context, boolean isVerify, 
  String passWord, GestureCallBack callBack) { 
 super(context); 
 // Get screen width 
 screenDispaly = AppUtil.getScreenDispaly(context); 
 // Get the screen width1/3 
 blockWidth = screenDispaly[0] / 3; 
 this.list = new ArrayList<GesturePoint>(); 
 this.context = context; 
 this.isVerify = isVerify; 
 // Add9icons 
 addChild(); 
 // Initialize a view that can draw lines 
 gestureDrawline = new GestureDrawline(context, list, isVerify, 
  passWord, callBack); 
 } 
 /** 
 * Add9icons of the round points 
 */ 
 // Used to calculate2half the distance size between each circle center 
 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(); 
  // Which row---012 0 ,345 1, 678 2-- 
  int row = i / 3; 
  // Which column---012 012 , 345 012 , 678 012 
  int col = i % 3; 
  // Define each attribute of the point 
  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; 
  // Build a round point object 
  GesturePoint p = new GesturePoint(leftX, rightX, topY, bottomY, 
   image, i + 1); 
  // Add9a round point icon 
  this.list.add(p); 
 } 
 } 
 /** 
 * Set the layout where the gesture unlock is displayed 
 */ 
 public void setParentView(ViewGroup parent) { 
 // Get the screen width 
 int width = screenDispaly[0]; 
 // Set the width and height of the gesture lock--Based on the screen width 
 LayoutParams layoutParams = new LayoutParams(width, width); 
 // Set the width and height of the gesture lock--Based on the screen width 
 this.setLayoutParams(layoutParams); 
 // Also perform the same operation on the line drawing 
 gestureDrawline.setLayoutParams(layoutParams); 
 parent.addView(gestureDrawline); 
 parent.addView(this); 
 } 
 /************************************** Operation to draw the dot position ****************************************/ 
 @Override 
 protected void onLayout(boolean changed, int l, int t, int r, int b) { 
 // Loop to get each dot position inside 
 for (int i = 0; i < getChildCount(); i++) { 
  // Which row 
  int row = i / 3; 
  // Which column 
  int col = i % 3; 
  // Get the corresponding dot position 
  View v = getChildAt(i); 
  // Perform the operation of drawing the dot position 
  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); 
 // Iterate over each child view and set its size 
 for (int i = 0; i < getChildCount(); i++) { 
  View v = getChildAt(i); 
  v.measure(widthMeasureSpec, heightMeasureSpec); 
 } 
 } 
 /** 
 * Expose a method to the outside---Used to clear the line segments on the password lock, retaining the path delayTime for a long time 
 * 
 * @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; 
/** 
 * drawing the gesture password path 
 * 
 */ 
public class GestureDrawline extends View { 
 private int mov_x;// declare the starting coordinate 
 private int mov_y; 
 private Map<String, GesturePoint> autoCheckPointMap;// automatically selected point 
 private boolean isDrawEnable = true; // whether drawing is allowed 
 /********************************************************************** 
 * constructor 
 */ 
 private int[] screenDispaly; 
 private Paint paint;// declare the pen 
 private Canvas canvas;// canvas 
 private Bitmap bitmap;// bitmap 
 private List<GesturePoint> list;// a collection containing coordinates of various views 
 private List<Pair<GesturePoint, GesturePoint>> lineList;// record the lines drawn 
 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);// Create a brush 
 bitmap = Bitmap.createBitmap(screenDispaly[0], screenDispaly[0], 
  Bitmap.Config.ARGB_8888); // Set the width and height of the bitmap 
 canvas = new Canvas(); 
 canvas.setBitmap(bitmap);// Draw points on the bitmap with the declared brush 
 paint.setStyle(Style.STROKE);// Set non-filled 
 paint.setStrokeWidth(10);// Pen width5Pixel 
 paint.setColor(Color.rgb(245, 142, 33));// set the default line color 
 paint.setAntiAlias(true);// Do not display jaggies 
 this.list = list; 
 this.lineList = new ArrayList<Pair<GesturePoint, GesturePoint>>(); 
 initAutoCheckPointMap(); 
 this.callBack = callBack; 
 // Initialize password cache 
 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; 
 } 
 /********************************************************** 
 * Draw bitmap 
 */ 
 @Override 
 protected void onDraw(Canvas canvas) { 
 canvas.drawBitmap(bitmap, 0, 0, paint); 
 } 
 /** 
 * Search the collection by the point's position to find out which Point the point is included in 
 * 
 * @return If not found, returns null, indicating that the user's current position is between points 
 */ 
 private GesturePoint getPointAt(int x, int y) { 
 for (GesturePoint point : list) {}} 
  // First judge x 
  int leftX = point.getLeftX(); 
  int rightX = point.getRightX(); 
  if (!(x >= leftX && x < rightX)) { 
  // If it is false, jump to the next comparison 
  continue; 
  } 
  int topY = point.getTopY(); 
  int bottomY = point.getBottomY(); 
  if (!(y >= topY && y < bottomY)) { 
  // If it is false, jump to the next comparison 
  continue; 
  } 
  // If it comes to this, it means that the position of the currently clicked point is at this position where the point is being traversed 
  return point; 
 } 
 return null; 
 } 
 /** 
 * clear all lines on the screen and then draw the lines in the collection 
 */ 
 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);// Draw line 
 } 
 } 
 /** 
 * Determine if the middle point needs to be selected 
 * 
 * @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; 
 } 
  key = endNum + " + startNum; 
 } 
 return autoCheckPointMap.get(key); 
 } 
 /** 
 * touch event 
 */ 
 private GesturePoint currentPoint; 
 @Override 
 public boolean onTouchEvent(MotionEvent event) { 
 if (isDrawEnable == false) { 
  // If the dot image shows a red negative film--It is also a secondary drawing error, which no longer allows drawing lines without clearly drawn line segments 
  return true; 
 } 
 paint.setColor(Color.rgb(245, 142, 33));// set the default line color 
 switch (event.getAction()) { 
 case MotionEvent.ACTION_DOWN: 
  // get the xy coordinates of the finger position after the mouse is pressed 
  mov_x = (int) event.getX(); 
  mov_y = (int) event.getY(); 
  // judge which point the current clicked position is within 
  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: 
  // clear all lines on the screen and then draw the lines in the collection--otherwise, it is not a line 
  clearScreenAndDrawList(); 
  // get which point the current moving position is within 
  GesturePoint pointAt = getPointAt((int) event.getX(), 
   (int) event.getY()); 
  // represents that the current user's finger is before the point and point 
  if (currentPoint == null && pointAt == null) { 
  return true; 
  }// represents that the user's finger moves from between points to a point 
  if (currentPoint == null) {// firstly, judge if the current point is null 
   // if it is empty, then assign the point where the finger moves to currentPoint 
   currentPoint = pointAt; 
   // set the selected state of currentPoint to true; 
   currentPoint.setPointState(Constants.POINT_STATE_SELECTED); 
   passWordSb.append(currentPoint.getNum()); 
  } 
  } 
  if (pointAt == null || currentPoint.equals(pointAt)) { 
  // the clicked moving area is not within the circular area, or the current clicked point is the same as the current moved point's position 
  // then draw a line starting from the current point center and ending at the position where the finger moves to 
  canvas.drawLine(currentPoint.getCenterX(), 
   currentPoint.getCenterY(), event.getX(), event.getY(), 
   paint);// Draw line 
  } 
  // if the current clicked point is different from the current moved point's position 
  // then draw a line starting from the center of the previous point and ending at the position where the finger moves to 
  canvas.drawLine(currentPoint.getCenterX(), 
   currentPoint.getCenterY(), pointAt.getCenterX(), 
   pointAt.getCenterY(), paint);// Draw line 
  pointAt.setPointState(Constants.POINT_STATE_SELECTED); 
  // Determine if the middle point needs to be selected 
  GesturePoint betweenPoint = getBetweenCheckPoint(currentPoint, 
   pointAt); 
  if (betweenPoint != null 
   && Constants.POINT_STATE_SELECTED != betweenPoint 
    .getPointState()) { 
   // There is a middle point and it has not been selected 
   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()); 
   // Set the middle point as selected 
   betweenPoint.setPointState(Constants.POINT_STATE_SELECTED); 
   // Assign the current point 
   currentPoint = pointAt; 
  } 
   Pair<GesturePoint, GesturePoint> pair = new Pair<GesturePoint, GesturePoint>( 
    currentPoint, pointAt); 
   lineList.add(pair); 
   passWordSb.append(pointAt.getNum()); 
   // Assign the current point 
   currentPoint = pointAt; 
  } 
  } 
  invalidate(); 
  break; 
 case MotionEvent.ACTION_UP:// When the finger is lifted 
  if (isVerify) { 
  // Gesture password verification 
  // Clear all lines on the screen and only draw the lines saved in the set 
  if (passWord.equals(passWordSb.toString())) { 
   // Represents the password gesture drawn by the user and the password passed in are the same 
   callBack.checkedSuccess(); 
  } 
   // The password drawn by the user is different from the password passed in. 
   callBack.checkedFail(); 
  } 
  } 
  callBack.onGestureCodeInput(passWordSb.toString()); 
  } 
  break; 
 default: 
  break; 
 } 
 return true; 
 } 
 /************************************ 
 * Verification error/Prompt for two inconsistent drawings 
 */ 
 private void drawErrorPathTip() { 
 canvas.drawColor(Color.TRANSPARENT, PorterDuff.Mode.CLEAR); 
 paint.setColor(Color.rgb(154, 7, 21));// Set default line color 
 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);// Draw line 
 } 
 invalidate(); 
 } 
 /** 
 * Clear the drawing state at a specified time 
 * 
 * @param delayTime 
 *  Delay execution time 
 */ 
 public void clearDrawlineState(long delayTime) { 
 if (delayTime > 0) { 
  // Draw red tip path 
  isDrawEnable = false; 
  drawErrorPathTip(); 
 } 
 new Handler().postDelayed(new clearStateRunnable(), delayTime); 
 } 
 /************************************************* 
 * Thread for clearing drawing state 
 */ 
 final class clearStateRunnable implements Runnable { 
 public void run() { 
  // Reset passWordSb 
  passWordSb = new StringBuilder(); 
  // Clear the set of saved points 
  lineList.clear(); 
  // redraw the interface again 
  clearScreenAndDrawList(); 
  for (GesturePoint p : list) { 
  p.setPointState(Constants.POINT_STATE_NORMAL); 
  } 
  invalidate(); 
  isDrawEnable = true; 
 } 
 } 
 public interface GestureCallBack { 
 /** 
  * user settings/gesture password entered 
  */ 
 public abstract void onGestureCodeInput(String inputCode); 
 /** 
  * represents that the password drawn by the user is the same as the password passed in 
  */ 
 public abstract void checkedSuccess(); 
 /** 
  * represents that the password drawn by the user is not the same as the password passed in 
  */ 
 public abstract void checkedFail(); 
 } 
}

Next, let's look at the layout for the password lock verification
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>

Implementation class for password verification code
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; 
/** 
 * Gesture Drawing/Verification Interface 
 */ 
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() { 
 //Error prompt for verification failure 
 mTextTip = (TextView) findViewById(R.id.text_tip); 
 mGestureContainer = (FrameLayout) findViewById(R.id.gesture_container); 
 // Initialize a viewGroup to display each point 
 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, "Password correct", 1000).show(); 
   GestureVerifyActivity.this.finish(); 
   } 
   @Override 
   public void checkedFail() { 
   mGestureContentView.clearDrawlineState(1300L); 
   mTextTip.setVisibility(View.VISIBLE); 
   mTextTip.setText(Html 
    .fromHtml("<font color='#c70c1e'>Password error</font>")); 
   // Left and right moving animation 
   Animation shakeAnimation = AnimationUtils.loadAnimation(GestureVerifyActivity.this, R.anim.shake); 
   mTextTip.startAnimation(shakeAnimation); 
   } 
  }); 
 // Set the layout where the gesture unlock is displayed 
 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"/>