购物车加减器--自定义view
2018-01-09 18:53
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NumberAddSubView
public class NumberAddSubView extends LinearLayout implements View.OnClickListener {
private Button btn_sub;
private Button btn_add;
private TextView tv_num;
private Context mContext;
private OnButtonClickListenter onButtonClickListenter;
public void setOnButtonClickListenter(OnButtonClickListenter onButtonClickListenter) {
this.onButtonClickListenter = onButtonClickListenter;
}
/**
* 设置默认值
*/
private int value = 1;
private int minValue = 1;
//private int maxValue = 5;
@RequiresApi(api = Build.VERSION_CODES.JELLY_BEAN)
public NumberAddSubView(Context context) {
this(context, null);
}
@RequiresApi(api = Build.VERSION_CODES.JELLY_BEAN)
public NumberAddSubView(Context context, AttributeSet attrs) {
this(context, attrs, 0);
}
@RequiresApi(api = Build.VERSION_CODES.JELLY_BEAN)
public NumberAddSubView(Context context, AttributeSet attrs, int defStyleAttr) {
super(context, attrs, defStyleAttr);
this.mContext = context;
initView(context);
//得到属性
if (attrs != null) {
TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.NumberAddSubView);
//TintTypedArray a = TintTypedArray.obtainStyledAttributes(context, attrs, R.styleable.NumberAddSubView, defStyleAttr, 0);
int value = a.getInt(R.styleable.NumberAddSubView_value, 0);
setValue(value);
/*int maxValue = a.getInt(R.styleable.NumberAddSubView_maxValue, 0);
setMaxValue(maxValue);*/
/*int minValue = a.getInt(R.styleable.NumberAddSubView_minValue, 0);
setMinValue(minValue);*/
Drawable btnSubBackground = a.getDrawable(R.styleable.NumberAddSubView_btnSubBackground);
if (btnSubBackground != null)
btn_sub.setBackground(btnSubBackground);
Drawable btnAddBackground = a.getDrawable(R.styleable.NumberAddSubView_btnAddBackground);
if (btnAddBackground != null)
btn_add.setBackground(btnAddBackground);
Drawable textViewBackground = a.getDrawable(R.styleable.NumberAddSubView_textViewBackground);
if (textViewBackground != null)
tv_num.setBackground(textViewBackground);
a.recycle();
}
}
private void initView(Context context) {
//第三个参数：把当前View加载到NumberAddSubView控件上
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_num = (TextView) findViewById(R.id.tv_num);
btn_sub.setOnClickListener(this);
btn_add.setOnClickListener(this);
}
public int getValue() {
String val = tv_num.getText().toString();
if (!TextUtils.isEmpty(val)) {
value = Integer.parseInt(val);
}
return value;
}
public void setValue(int value) {
this.value = value;
tv_num.setText(value + "");
}
//设置最小值
/*public int getMinValue() {
return minValue;
}
public void setMinValue(int minValue) {
this.minValue = minValue;
}*/
//设置最大值
/*public int getMaxValue() {
return maxValue;
}
public void setMaxValue(int maxValue) {
this.maxValue = maxValue;
}*/
@Override
public void onClick(View v) {
if (v.getId() == R.id.btn_sub) {
//Toast.makeText(mContext,"减",Toast.LENGTH_SHORT).show();
subNum();
if (onButtonClickListenter != null) {
onButtonClickListenter.onButtonSubClick(v, value);
}
} else if (v.getId() == R.id.btn_add) {
addNum();
//Toast.makeText(mContext,"加",Toast.LENGTH_SHORT).show();
if (onButtonClickListenter != null) {
onButtonClickListenter.onButtonAddClick(v, value);
}
}
}
/**
* 减少数据
*/
private void subNum() {
if (value > minValue) {
value = value - 1;
tv_num.setText(value + "");
}else{
Toast.makeText(mContext,"最少数量为1",Toast.LENGTH_SHORT).show();
}
}
/**
* 添加数据
*/
private void addNum() {
value = value + 1;
tv_num.setText(value + "");
//有最大值上限时需要
/*if (value < maxValue) {
value = value + 1;
tv_num.setText(value + "");
}*/
}
public interface OnButtonClickListenter {
/**
* 当增加按钮被点击的时候回调该方法
*
* @param view
* @param value
*/
public void onButtonAddClick(View view, int value);
/**
* 当减少按钮被点击的时候回调这个方法
*
* @param view
* @param value
*/
public void onButtonSubClick(View view, int value);
}
}
atrrs.xml
<resources>
<declare-styleable name="NumberAddSubView">
<attr name="value" format="integer|reference"/>
<attr name="minValue" format="integer|reference"/>
<attr name="maxValue" format="integer|reference"/>
<attr name="btnAddBackground" format="reference"/>
<attr name="btnSubBackground" format="reference"/>
<attr name="textViewBackground" format="reference"/>
</declare-styleable>
</resources>
number_add_sub_view.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="100dp"
android:layout_height="30dp"
android:orientation="horizontal">
<Button
android:id="@+id/btn_sub"
android:layout_width="0dp"
android:layout_weight="1"
android:layout_height="match_parent"
android:background="@drawable/bg_btn_style_white"
android:text="一"
android:textColor="#000000"
android:textSize="14sp" />
<TextView
android:id="@+id/tv_num"
android:layout_width="0dp"
android:layout_weight="1"
android:layout_height="match_parent"
android:gravity="center"
android:minWidth="100dp"
android:text="1" />
<Button
android:id="@+id/btn_add"
android:layout_width="0dp"
android:layout_weight="1"
android:layout_height="match_parent"
android:background="@drawable/bg_btn_style_white"
android:text="十"
android:textColor="#000000"
android:textSize="14sp" />
</LinearLayout>
bg_btn_style_white.xml
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:state_enabled="false">
<shape android:shape="rectangle">
<corners android:radius="2.0dp" />
<solid android:color="#7fd8d8d8" />
<stroke android:width="1.0dp" android:color="#dddddd" />
</shape>
</item>
<item android:state_pressed="true">
<shape android:shape="rectangle">
<corners android:radius="2.0dp" />
<solid android:color="#ffd8d8d8" />
<stroke android:width="1.0dp" android:col
a0d6
or="#ddd" />
</shape>
</item>
<item>
<shape android:shape="rectangle">
<corners android:radius="2.0dp" />
<solid android:color="#ffffff" />
<stroke android:width="1.0dp" android:color="#dddddd" />
</shape>
</item>
</selector>
shape_number_add_sub.xml
<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android">
<corners android:radius="2dp" />
<stroke
android:width="1dp"
android:color="#dddddd" />
<solid android:color="#FFFFFF" />
</shape>
使用点击事件
ch.numberaddsubview.setOnButtonClickListenter(new NumberAddSubView.OnButtonClickListenter() {
@Override
public void onButtonAddClick(View view, int value) {
}
@Override
public void onButtonSubClick(View view, int value) {
}
});
public class NumberAddSubView extends LinearLayout implements View.OnClickListener {
private Button btn_sub;
private Button btn_add;
private TextView tv_num;
private Context mContext;
private OnButtonClickListenter onButtonClickListenter;
public void setOnButtonClickListenter(OnButtonClickListenter onButtonClickListenter) {
this.onButtonClickListenter = onButtonClickListenter;
}
/**
* 设置默认值
*/
private int value = 1;
private int minValue = 1;
//private int maxValue = 5;
@RequiresApi(api = Build.VERSION_CODES.JELLY_BEAN)
public NumberAddSubView(Context context) {
this(context, null);
}
@RequiresApi(api = Build.VERSION_CODES.JELLY_BEAN)
public NumberAddSubView(Context context, AttributeSet attrs) {
this(context, attrs, 0);
}
@RequiresApi(api = Build.VERSION_CODES.JELLY_BEAN)
public NumberAddSubView(Context context, AttributeSet attrs, int defStyleAttr) {
super(context, attrs, defStyleAttr);
this.mContext = context;
initView(context);
//得到属性
if (attrs != null) {
TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.NumberAddSubView);
//TintTypedArray a = TintTypedArray.obtainStyledAttributes(context, attrs, R.styleable.NumberAddSubView, defStyleAttr, 0);
int value = a.getInt(R.styleable.NumberAddSubView_value, 0);
setValue(value);
/*int maxValue = a.getInt(R.styleable.NumberAddSubView_maxValue, 0);
setMaxValue(maxValue);*/
/*int minValue = a.getInt(R.styleable.NumberAddSubView_minValue, 0);
setMinValue(minValue);*/
Drawable btnSubBackground = a.getDrawable(R.styleable.NumberAddSubView_btnSubBackground);
if (btnSubBackground != null)
btn_sub.setBackground(btnSubBackground);
Drawable btnAddBackground = a.getDrawable(R.styleable.NumberAddSubView_btnAddBackground);
if (btnAddBackground != null)
btn_add.setBackground(btnAddBackground);
Drawable textViewBackground = a.getDrawable(R.styleable.NumberAddSubView_textViewBackground);
if (textViewBackground != null)
tv_num.setBackground(textViewBackground);
a.recycle();
}
}
private void initView(Context context) {
//第三个参数：把当前View加载到NumberAddSubView控件上
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_num = (TextView) findViewById(R.id.tv_num);
btn_sub.setOnClickListener(this);
btn_add.setOnClickListener(this);
}
public int getValue() {
String val = tv_num.getText().toString();
if (!TextUtils.isEmpty(val)) {
value = Integer.parseInt(val);
}
return value;
}
public void setValue(int value) {
this.value = value;
tv_num.setText(value + "");
}
//设置最小值
/*public int getMinValue() {
return minValue;
}
public void setMinValue(int minValue) {
this.minValue = minValue;
}*/
//设置最大值
/*public int getMaxValue() {
return maxValue;
}
public void setMaxValue(int maxValue) {
this.maxValue = maxValue;
}*/
@Override
public void onClick(View v) {
if (v.getId() == R.id.btn_sub) {
//Toast.makeText(mContext,"减",Toast.LENGTH_SHORT).show();
subNum();
if (onButtonClickListenter != null) {
onButtonClickListenter.onButtonSubClick(v, value);
}
} else if (v.getId() == R.id.btn_add) {
addNum();
//Toast.makeText(mContext,"加",Toast.LENGTH_SHORT).show();
if (onButtonClickListenter != null) {
onButtonClickListenter.onButtonAddClick(v, value);
}
}
}
/**
* 减少数据
*/
private void subNum() {
if (value > minValue) {
value = value - 1;
tv_num.setText(value + "");
}else{
Toast.makeText(mContext,"最少数量为1",Toast.LENGTH_SHORT).show();
}
}
/**
* 添加数据
*/
private void addNum() {
value = value + 1;
tv_num.setText(value + "");
//有最大值上限时需要
/*if (value < maxValue) {
value = value + 1;
tv_num.setText(value + "");
}*/
}
public interface OnButtonClickListenter {
/**
* 当增加按钮被点击的时候回调该方法
*
* @param view
* @param value
*/
public void onButtonAddClick(View view, int value);
/**
* 当减少按钮被点击的时候回调这个方法
*
* @param view
* @param value
*/
public void onButtonSubClick(View view, int value);
}
}
atrrs.xml
<resources>
<declare-styleable name="NumberAddSubView">
<attr name="value" format="integer|reference"/>
<attr name="minValue" format="integer|reference"/>
<attr name="maxValue" format="integer|reference"/>
<attr name="btnAddBackground" format="reference"/>
<attr name="btnSubBackground" format="reference"/>
<attr name="textViewBackground" format="reference"/>
</declare-styleable>
</resources>
number_add_sub_view.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="100dp"
android:layout_height="30dp"
android:orientation="horizontal">
<Button
android:id="@+id/btn_sub"
android:layout_width="0dp"
android:layout_weight="1"
android:layout_height="match_parent"
android:background="@drawable/bg_btn_style_white"
android:text="一"
android:textColor="#000000"
android:textSize="14sp" />
<TextView
android:id="@+id/tv_num"
android:layout_width="0dp"
android:layout_weight="1"
android:layout_height="match_parent"
android:gravity="center"
android:minWidth="100dp"
android:text="1" />
<Button
android:id="@+id/btn_add"
android:layout_width="0dp"
android:layout_weight="1"
android:layout_height="match_parent"
android:background="@drawable/bg_btn_style_white"
android:text="十"
android:textColor="#000000"
android:textSize="14sp" />
</LinearLayout>
bg_btn_style_white.xml
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:state_enabled="false">
<shape android:shape="rectangle">
<corners android:radius="2.0dp" />
<solid android:color="#7fd8d8d8" />
<stroke android:width="1.0dp" android:color="#dddddd" />
</shape>
</item>
<item android:state_pressed="true">
<shape android:shape="rectangle">
<corners android:radius="2.0dp" />
<solid android:color="#ffd8d8d8" />
<stroke android:width="1.0dp" android:col
a0d6
or="#ddd" />
</shape>
</item>
<item>
<shape android:shape="rectangle">
<corners android:radius="2.0dp" />
<solid android:color="#ffffff" />
<stroke android:width="1.0dp" android:color="#dddddd" />
</shape>
</item>
</selector>
shape_number_add_sub.xml
<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android">
<corners android:radius="2dp" />
<stroke
android:width="1dp"
android:color="#dddddd" />
<solid android:color="#FFFFFF" />
</shape>
使用点击事件
ch.numberaddsubview.setOnButtonClickListenter(new NumberAddSubView.OnButtonClickListenter() {
@Override
public void onButtonAddClick(View view, int value) {
}
@Override
public void onButtonSubClick(View view, int value) {
}
});
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