3、自定义验证码控件CheckView
public class CheckView extends View{
Context mContext;
int [] CheckNum = null;
Paint mTempPaint = new Paint();
// 验证码
public CheckView(Context context, AttributeSet attrs) {
super(context, attrs);
mContext = context;
mTempPaint.setAntiAlias(true);
mTempPaint.setTextSize(Config.TEXT_SIZE);
mTempPaint.setStrokeWidth(3);
}
public void onDraw(Canvas canvas){
canvas.drawColor(Config.COLOR);
final int height = getHeight();//获得CheckView控件的高度
final int width = getWidth();//获得CheckView控件的宽度
int dx = 40;
for(int i = 0; i < 4; i ++){//绘制验证控件上的文本
canvas.drawText("" + CheckNum[i], dx, CheckUtil.getPositon(height), mTempPaint);
dx += width/ 5;
}
int [] line;
for(int i = 0; i < Config.LINE_NUM; i ++){//划线
line = CheckUtil.getLine(height, width);
canvas.drawLine(line[0], line[1], line[2], line[3], mTempPaint);
}
// 绘制小圆点
int [] point;
for(int i = 0; i < Config.POINT_NUM; i ++) {//画点
point=CheckUtil.getPoint(height, width);
canvas.drawCircle(point[0], point[1], 1, mTempPaint);
}
}
public void setCheckNum(int [] chenckNum) {//设置验证码
CheckNum = chenckNum;
}
public int[] getCheckNum() {//获得验证码
return CheckNum;
}
public void invaliChenkNum() {
invalidate();
}
}
4、编写MainActivity测试代码
public class MainActivity extends Activity implements View.OnClickListener{
private CheckAction mCheckView ;
private TextView mShowPassViwe;
private EditText mEditPass;
private Button mSubmit;
private Button mRef;
// 验证码：
private int [] checkNum =null;
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
initView();
initCheckNum();
}
public void initView(){
mCheckView = (CheckView) findViewById(R.id.checkView);
mShowPassViwe = (TextView) findViewById(R.id.checkpass);
mEditPass = (EditText) findViewById(R.id.checkTest);
mSubmit = (Button) findViewById(R.id.submit);
mRef = (Button) findViewById(R.id.ref);
mSubmit.setOnClickListener(this);
mRef.setOnClickListener(this);
}
// 初始化验证码并且刷新界面
public void initCheckNum(){
checkNum = CheckUtil.getCheckNum();
mCheckView.setCheckNum(checkNum);
mCheckView.invaliChenkNum();
}
public void onClick(View v) {
switch (v.getId()){
case R.id.submit:
String userInput = mEditPass.getText().toString();
if(CheckUtil.checkNum(userInput, checkNum)){
setPassString("通过");
Toast.makeText(this, "通过", 1200).show();
}else{
setPassString("未通过");
Toast.makeText(this, "未通过", 1200).show();
}
break;
case R.id.ref:
initCheckNum();
break;
default:
break;
}
}
public void setPassString(String passString) {
mShowPassViwe.setText(passString);
}
}
