本人所做的android个人所得税计算器程序。

先贴效果图：

1.layout布局主要使用TableLayout，代码如下

2.java实现，计算个税的方法很多，网上都有介绍，目前是按照9级税率的算法实现的，代码如下：

/** * 个人所得税计算器 * @author ameyume * */ public class PersonalTax extends Activity { private static final String LOG_TAG = "PersonalTax"; private TextView tvYanglaoNum, tvYiliaoNum, tvShiyeNum, tvZhufangNum; private EditText etShuiqianNum, etShuihouNum, etGeshui; private EditText etYanglao, etYiliao, etShiye, etZhufang; private EditText etShebaoBase, etYiliaoBase, etZhufangBase, etQizhengdianBase; private Button btnJisuan; /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); // setTitle("个税通——个人所得税计算器"); // 社保与住房公积金缴费金额 tvYanglaoNum = (TextView)findViewById(R.id.tvYanglaoNum); tvYiliaoNum = (TextView)findViewById(R.id.tvYiliaoNum); tvShiyeNum = (TextView)findViewById(R.id.tvShiyeNum); tvZhufangNum = (TextView)findViewById(R.id.tvZhufangNum); // 税前税后以及个人所得税金额 etShuiqianNum = (EditText)findViewById(R.id.etShuiqianNum); etShuiqianNum.addTextChangedListener(new TextWatcher() { @Override public void afterTextChanged(Editable arg0) { // TODO Auto-generated method stub // 把输入内容同步显示在社保基数，医疗基数，住房公积金基数中 etShebaoBase.setText(etShuiqianNum.getText()); etYiliaoBase.setText(etShuiqianNum.getText()); etZhufangBase.setText(etShuiqianNum.getText()); } @Override public void beforeTextChanged(CharSequence s, int start, int count, int after) { // TODO Auto-generated method stub } @Override public void onTextChanged(CharSequence s, int start, int before, int count) { // TODO Auto-generated method stub } }); etShuihouNum = (EditText)findViewById(R.id.etShuihouNum); etGeshui = (EditText)findViewById(R.id.etGeshui); // 社保与住房公积金缴费比例 etYanglao = (EditText)findViewById(R.id.etYanglao); etYiliao = (EditText)findViewById(R.id.etYiliao); etShiye = (EditText)findViewById(R.id.etShiye); etZhufang = (EditText)findViewById(R.id.etZhufang); // 社保与住房公积金缴费基数 etShebaoBase = (EditText)findViewById(R.id.etShebaoBase); etYiliaoBase = (EditText)findViewById(R.id.etYiliaoBase); etZhufangBase = (EditText)findViewById(R.id.etZhufangBase); etQizhengdianBase = (EditText)findViewById(R.id.etQizhengdianBase); // 计算 btnJisuan = (Button)findViewById(R.id.btnJisuan); btnJisuan.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { // TODO Auto-generated method stub // 计算个税 String strShuiqian = etShuiqianNum.getText().toString(); if (strShuiqian.length() <= 0) { Toast.makeText(getApplicationContext(), "请输入税前收入！", Toast.LENGTH_SHORT).show(); etShuiqianNum.requestFocus(); return; } String strYanglao = etYanglao.getText().toString(); if (strYanglao.length() <= 0) { Toast.makeText(getApplicationContext(), "请输入养老缴费比例！", Toast.LENGTH_SHORT).show(); etYanglao.requestFocus(); return; } String strYiliao = etYiliao.getText().toString(); if (strYiliao.length() <= 0) { Toast.makeText(getApplicationContext(), "请输入医疗缴费比例！", Toast.LENGTH_SHORT).show(); etYiliao.requestFocus(); return; } String strShiye = etShiye.getText().toString().trim(); if (strShiye.length() <= 0) { Toast.makeText(getApplicationContext(), "请输入失业缴费比例！", Toast.LENGTH_SHORT).show(); etShiye.requestFocus(); return; } String strZhufang = etZhufang.getText().toString(); if (strZhufang.length() <= 0) { Toast.makeText(getApplicationContext(), "请输入住房公积金缴费比例！", Toast.LENGTH_SHORT).show(); etZhufang.requestFocus(); return; } String strShebaoBase = etShebaoBase.getText().toString(); if (strShebaoBase.length() <= 0) { Toast.makeText(getApplicationContext(), "请输入社保缴费基数！", Toast.LENGTH_SHORT).show(); etShebaoBase.requestFocus(); return; } String strYiliaoBase = etYiliaoBase.getText().toString(); if (strYiliaoBase.length() <= 0) { Toast.makeText(getApplicationContext(), "请输入医疗缴费基数！", Toast.LENGTH_SHORT).show(); etYiliaoBase.requestFocus(); return; } String strZhufangBase = etZhufangBase.getText().toString(); if (strZhufangBase.length() <= 0) { Toast.makeText(getApplicationContext(), "请输入住房公积金缴费基数！", Toast.LENGTH_SHORT).show(); etZhufangBase.requestFocus(); return; } String strQizhengdianBase = etQizhengdianBase.getText().toString(); if (strQizhengdianBase.length() <= 0) { Toast.makeText(getApplicationContext(), "请输入个人所得税起征点！", Toast.LENGTH_SHORT).show(); etQizhengdianBase.requestFocus(); return; } try{ float shuiqianNum = Float.parseFloat(strShuiqian); float yanglaoNum = Float.parseFloat(strYanglao); float yiliaoNum = Float.parseFloat(strYiliao); float shiyeNum = Float.parseFloat(strShiye); float zhufangNum = Float.parseFloat(strZhufang); float shebaoBase = Float.parseFloat(strShebaoBase); float yiliaoBase = Float.parseFloat(strYiliaoBase); float zhufangBase = Float.parseFloat(strZhufangBase); float qizhengdianBase = Float.parseFloat(strQizhengdianBase); // 养老缴纳金额 float yanglao = shebaoBase * yanglaoNum * 0.01f; tvYanglaoNum.setText(String.valueOf(yanglao)); // 医疗缴纳金额 float yiliao = yiliaoBase * yiliaoNum * 0.01f + 3; tvYiliaoNum.setText(String.valueOf(yiliao)); // 失业缴纳金额 float shiye = shebaoBase * shiyeNum * 0.01f; tvShiyeNum.setText(String.valueOf(shiye)); // 住房公积金缴纳金额 float zhufang = zhufangBase * zhufangNum * 0.01f; tvZhufangNum.setText(String.valueOf(zhufang)); // 计算个税 float shuihou = shuiqianNum - yanglao - yiliao - shiye - zhufang; float geshui = 0f; if (shuihou > qizhengdianBase) { // 需要交税 float jiaoshuiBase = shuihou - qizhengdianBase; if (jiaoshuiBase <= 500) { geshui = jiaoshuiBase * 0.05f; } else if (jiaoshuiBase > 500 && jiaoshuiBase <= 2000) { geshui = jiaoshuiBase * 0.1f - 25; } else if (jiaoshuiBase > 2000 && jiaoshuiBase <= 5000) { geshui = jiaoshuiBase * 0.15f - 125; } else if (jiaoshuiBase > 5000 && jiaoshuiBase <= 20000) { geshui = jiaoshuiBase * 0.2f - 375; } else if (jiaoshuiBase > 20000 && jiaoshuiBase <= 40000) { geshui = jiaoshuiBase * 0.25f - 1375; } else if (jiaoshuiBase > 40000 && jiaoshuiBase <= 60000) { geshui = jiaoshuiBase * 0.3f - 3375; } else if (jiaoshuiBase > 60000 && jiaoshuiBase <= 80000) { geshui = jiaoshuiBase * 0.35f - 6375; } else if (jiaoshuiBase > 80000 && jiaoshuiBase <= 100000) { geshui = jiaoshuiBase * 0.4f - 10375; } else if (jiaoshuiBase > 100000) { geshui = jiaoshuiBase * 0.45f - 15375; } } shuihou -= geshui; if (shuihou < 0f) { Toast.makeText(getApplicationContext(), "税后收入为负数，请检查输入是否正确！", Toast.LENGTH_SHORT).show(); etShuihouNum.setTextColor(Color.RED); } else { etShuihouNum.setTextColor(Color.BLUE); } etShuihouNum.setText(String.valueOf(shuihou)); etGeshui.setText(String.valueOf(geshui)); } catch(Exception e) { e.printStackTrace(); Log.e(LOG_TAG, "parseFloat ERROR!!!"); } } }); } }