Android自定义UI手势密码改进版

package com.example.lockpatterview; 
 
import com.example.lockpatterview.LockPatterView.OnPatterChangeLister; 
 
import android.os.Bundle; 
import android.text.TextUtils; 
import android.widget.TextView; 
import android.widget.Toast; 
import android.app.Activity; 
 
public class MainActivity extends Activity implements OnPatterChangeLister { 
 
 LockPatterView lock; 
 TextView text; 
 String p = "14789"; 
 
 @Override 
 protected void onCreate(Bundle savedInstanceState) { 
 super.onCreate(savedInstanceState); 
 setContentView(R.layout.activity_main); 
 text = (TextView) findViewById(R.id.text); 
 lock = (LockPatterView) findViewById(R.id.lock); 
 lock.SetOnPatterChangeLister(this); 
 } 
 
 @Override 
 public void onPatterChange(String passwordStr) { 
 if (!TextUtils.isEmpty(passwordStr)) { 
  if (passwordStr.equals(p)) { 
  text.setText(passwordStr); 
  } else { 
  text.setText("密码错误"); 
  lock.errorPoint(); 
  } 
 }else { 
  Toast.makeText(MainActivity.this, "至少连接5点", 0).show(); 
 } 
 
 } 
 
 @Override 
 public void onPatterStart(boolean isStart) { 
 if (isStart) { 
  text.setText("请绘制图案"); 
 } 
 } 
 
} 

package com.example.lockpatterview; 
 
import java.util.ArrayList; 
import java.util.List; 
 
import android.content.Context; 
import android.graphics.Bitmap; 
import android.graphics.BitmapFactory; 
import android.graphics.Canvas; 
import android.graphics.Matrix; 
import android.graphics.Paint; 
import android.text.TextUtils; 
import android.util.AttributeSet; 
import android.view.MotionEvent; 
import android.view.View; 
 
public class LockPatterView extends View { 
 
 private static final int POINT_SIZE = 5; 
 
 private Point[][] points = new Point[3][3]; 
 
 private Matrix matrix = new Matrix(); 
 
 private float width, height, offstartY, moveX, moveY;; 
 
 private Bitmap bitmap_pressed, bitmap_normal, bitmap_error, bitmap_line, 
  bitmap_line_error; 
 
 private Paint paint = new Paint(Paint.ANTI_ALIAS_FLAG); 
 
 private List pointList = new ArrayList(); 
 
 private OnPatterChangeLister onPatterChangeLister; 
 
 /** 
 * 构造函数 
 */ 
 public LockPatterView(Context context, AttributeSet attrs, int defStyle) { 
 super(context, attrs, defStyle); 
 } 
 
 public LockPatterView(Context context, AttributeSet attrs) { 
 super(context, attrs); 
 } 
 
 public LockPatterView(Context context) { 
 super(context); 
 } 
 
 /********************************************************* 
 * 绘制9宫格 
 * movePoint代表鼠标在移动，但是不是9宫格里面的点 
 * isInit是否初始化过9个点 
 * isSelect 点位是否被选中状态 
 * isFinish 是否绘制完毕 
 */ 
 private boolean isInit, isSelect, isFinish, movePoint; 
 
 @Override 
 protected void onDraw(Canvas canvas) { 
 // 第一次没有初始化就进行初始化，一旦初始化就不在初始化工作了，isInit的意思是---默认没有初始化过 
 if (!isInit) { 
  // 初始化9个点 
  initPoints(); 
 } 
 // 绘制9个点 
 points2Canvas(canvas); 
 
 if (pointList.size() > 0) { 
  Point a = pointList.get(0); 
  // 绘制九宫格坐标点 
  for (int i = 0; i  0) {// 绘制错误 
  errorPoint(); 
  if (onPatterChangeLister != null) { 
   onPatterChangeLister.onPatterChange(null); 
  } 
  } else { 
  if (onPatterChangeLister != null) { 
   String pass = ""; 
   for (int i = 0; i