加减器自定义

import android.content.Context;
import android.text.TextUtils;
import android.util.AttributeSet;
import android.view.View;
import android.widget.LinearLayout;
import android.widget.TextView;
import android.widget.Toast;

import com.bawei.moni.R;

/**

• @Author：苏羡c

• @E-mail：

• @Date：2019/4/4 11:37

• @Description：描述信息
  */
  public class jiajianqi extends LinearLayout {

  private TextView jian,num,jia;

  public jiajianqi(Context context) {
  this(context,null);
  }

  public jiajianqi(Context context, AttributeSet attrs) {
  this(context, attrs,-1);
  }

  public jiajianqi(Context context,AttributeSet attrs, int defStyleAttr) {
  super(context, attrs, defStyleAttr);
  init(context);
  initListen();
  }

  private void initListen() {
  jia.setOnClickListener(new OnClickListener() {
  @Override
  public void onClick(View v) {
  sum();
  }
  });
  jian.setOnClickListener(new OnClickListener() {
  @Override
  public void onClick(View v) {
  kejian();
  }
  });

  }

  private void kejian() {
  String s = num.getText().toString();
  int i;
  if (!TextUtils.isEmpty(s)&&!s.contains(".")){
  i = Integer.parseInt(s);
  i–;
  if (i<0){
  i=0;
  Toast.makeText(getContext(), “不能为0”, Toast.LENGTH_SHORT).show();
  }
  num.setText(i+"");
  }
  }

  private void sum() {
  String s = num.getText().toString();
  int i;
  if(!TextUtils.isEmpty(s) && !s.contains(".")){
  i = Integer.parseInt(s);
  i++;
  num.setText(i+"");
  }
  }

  private void init(Context context) {
  View view = inflate(context, R.layout.jiajianqi_xml, this);
  jian = findViewById(R.id.jian);
  num = findViewById(R.id.num);
  jia = findViewById(R.id.jia);

  }
  public void setNumS(int nums){
  if (nums>0){
  num.setText(nums+"");
  }else {
  Toast.makeText(getContext(), “不能为0”, Toast.LENGTH_SHORT).show();
  }
  }
  }

标签：自定义,加减器,void,num,context,import,android,public
来源： https://blog.csdn.net/weixin_43241892/article/details/89060098