public class NumberAddSubView extends LinearLayout implements View.OnClickListener {
private Button btn_sub;
private Button btn_add;
private TextView tv_value;
//属性监听
private int value = 1;//默认值
private int minValue = 0;//最小值
private int maxValue = 10;//最大值
public int getMaxValue() {
return maxValue;
}
public void setMaxValue(int maxValue) {
this.maxValue = maxValue;
}
public int getValue() {
String valueStr = tv_value.getText().toString().trim();//文本的内容
if (!TextUtils.isEmpty(valueStr)) {
value = Integer.valueOf(valueStr);
}
return value;
}
public void setValue(int value) {
this.value = value;
tv_value.setText(value + "");
}
public int getMinValue() {
return minValue;
}
public void setMinValue(int minValue) {
this.minValue = minValue;
}
public NumberAddSubView(Context context) {
this(context, null);
}
public NumberAddSubView(Context context, AttributeSet attrs) {
this(context, attrs, 0);
}
@TargetApi(Build.VERSION_CODES.JELLY_BEAN)
public NumberAddSubView(Context context, AttributeSet attrs, int defStyleAttr) {
super(context, attrs, defStyleAttr);
//要让布局和当前类形成一个整体
View.inflate(context, R.layout.number_add_sub_view, this);
btn_sub = (Button) findViewById(R.id.btn_sub);
btn_add = (Button) findViewById(R.id.btn_add);
tv_value = (TextView) findViewById(R.id.tv_value);
getValue();//获得当前值
//设置点击事件
btn_add.setOnClickListener(this);
btn_sub.setOnClickListener(this);
//得到属性
if (attrs != null) {
TintTypedArray typedArray = TintTypedArray.obtainStyledAttributes
(context, attrs, R.styleable.NumberAddSubView);
int value = typedArray.getInt(R.styleable.NumberAddSubView_value, 0);
if (value > 0) {
setValue(value);
}
int minValue = typedArray.getInt(R.styleable.NumberAddSubView_minValue, 0);
if (minValue > 0) {
setMinValue(minValue);
}
int maxValue = typedArray.getInt(R.styleable.NumberAddSubView_maxValue, 0);
if (maxValue > 0) {
setMaxValue(maxValue);
}
Drawable numberAddSubBackground = typedArray.getDrawable
(R.styleable.NumberAddSubView_NumberAddSubBackground);
if (numberAddSubBackground != null) {
setBackground(numberAddSubBackground);
}
Drawable numberAddBackground = typedArray.getDrawable
(R.styleable.NumberAddSubView_NumberAddBackground);
if (numberAddBackground != null) {
btn_add.setBackground(numberAddBackground);
}
Drawable numberSubBackground = typedArray.getDrawable
(R.styleable.NumberAddSubView_NumberSubBackground);
if (numberSubBackground != null) {
btn_sub.setBackground(numberSubBackground);
}
}
}
@Override
public void onClick(View v) {
switch (v.getId()) {
case R.id.btn_sub://减
subNumber();
if (listener != null) {
listener.onButtonSub(v, value);
}
break;
case R.id.btn_add://加
addNumber();
if (listener != null) {
listener.onButtonAdd(v, value);
}
break;
}
}
/**
* 减
*/
private void subNumber() {
if (value > minValue) {
value -= 1;
}
setValue(value);
}
/**
* 加
*/
private void addNumber() {
if (value < maxValue) {
value += 1;
}
setValue(value);
}
/**
* 监听数字增加减少控件
*/
public interface OnNumberClickListener {
/**
* 当减少按钮被点击的时候回调
*
* @param view
* @param value
*/
void onButtonSub(View view, int value);
/**
* 当增加按钮被点击的时候回调
*
* @param view
* @param value
*/
void onButtonAdd(View view, int value);
}
public OnNumberClickListener listener;
/**
* 设置监听数字按钮
*
* @param listener
*/
public void setOnNumberClickListener(OnNumberClickListener listener) {
this.listener = listener;
}
