android 计算器 源代码 有sin cos 开方 X的Y次方 支持小数

package xixi.dx; import android.R.integer; import android.R.string; import android.app.Activity; import android.content.res.ColorStateList; import android.graphics.Color; import android.os.Bundle; import android.view.View; import android.view.View.OnClickListener; import android.widget.Button; import android.widget.EditText; import android.widget.Toast; public class CounterMain extends Activity { /** Called when the activity is first created. */ private EditText txtContent; private Button btn0; private Button btn1; private Button btn2; private Button btn3; private Button btn4; private Button btn5; private Button btn6; private Button btn7; private Button btn8; private Button btn9; private Button btnSin; private Button btnCos; private Button btn2x; private Button btnx2; private Button btnXY; private Button btnClear; private Button btnAdd; private Button btnCut; private Button btnRide; private Button btnDivide; private Button btndian; private Button btnWorth; private String num1=""; private String num2=""; private String allString=""; private int signString=0; private Double endNum=0.0; private boolean two=false; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); /* btn0=(Button)findViewById(R.id.btn0); btn1=(Button)findViewById(R.id.btn1); btn2=(Button)findViewById(R.id.btn2); btn3=(Button)findViewById(R.id.btn3); btn4=(Button)findViewById(R.id.btn4); btn5=(Button)findViewById(R.id.btn5); btn6=(Button)findViewById(R.id.btn6); btn7=(Button)findViewById(R.id.btn7); btn8=(Button)findViewById(R.id.btn8); btn9=(Button)findViewById(R.id.btn9); btnSin=(Button)findViewById(R.id.btnMS); btnCos=(Button)findViewById(R.id.btnMC); btn2x=(Button)findViewById(R.id.btnET); btnx2=(Button)findViewById(R.id.btnXX); btnXY=(Button)findViewById(R.id.btnXY); btnAdd=(Button)findViewById(R.id.btnAdd); btnCut=(Button)findViewById(R.id.btnCut); btnRide=(Button)findViewById(R.id.btnRide); btnDivide=(Button)findViewById(R.id.btnDivide); btndian=(Button)findViewById(R.id.btndian); btnWorth=(Button)findViewById(R.id.btnWorth);*/ txtContent=(EditText)findViewById(R.id.txtContent); txtContent.setTextColor(Color.WHITE); Button[] buttons=new Button[]{ btn0=(Button)findViewById(R.id.btn0), btn1=(Button)findViewById(R.id.btn1), btn2=(Button)findViewById(R.id.btn2), btn3=(Button)findViewById(R.id.btn3), btn4=(Button)findViewById(R.id.btn4), btn5=(Button)findViewById(R.id.btn5), btn6=(Button)findViewById(R.id.btn6), btn7=(Button)findViewById(R.id.btn7), btn8=(Button)findViewById(R.id.btn8), btn9=(Button)findViewById(R.id.btn9), btnSin=(Button)findViewById(R.id.btnMS), btnCos=(Button)findViewById(R.id.btnMC), btn2x=(Button)findViewById(R.id.btnET), btnx2=(Button)findViewById(R.id.btnXX), btnXY=(Button)findViewById(R.id.btnXY), btnClear=(Button)findViewById(R.id.btnClear), btnAdd=(Button)findViewById(R.id.btnAdd), btnCut=(Button)findViewById(R.id.btnCut), btnRide=(Button)findViewById(R.id.btnRide), btnDivide=(Button)findViewById(R.id.btnDivide), btndian=(Button)findViewById(R.id.btndian), btnWorth=(Button)findViewById(R.id.btnWorth) }; for(Button btn : buttons) { btn.setOnClickListener(new OnClick()); } } class OnClick implements OnClickListener { @Override public void onClick(View v) { /*if(v.getId()==R.id.btn7) { Toast.makeText(CounterMain.this, String.valueOf("sdfsdf"), 1000).show(); } else { Toast.makeText(CounterMain.this, String.valueOf(R.id.btn7), 1000).show(); } }*/ /*try { switch (v.getId()) { case R.id.btn7: Toast.makeText(CounterMain.this, String.valueOf(R.id.btn7), 1000).show(); break; default: Toast.makeText(CounterMain.this, "sfsdfasfd", 1000).show(); break; } } catch (Exception e) { Toast.makeText(CounterMain.this,"ok", 1000).show(); }*/ switch (v.getId()) { case R.id.btn0: if(!two) { num1+=0; allString+=0; txtContent.setText(allString); } else { num2+=0; allString+=0; txtContent.setText(allString); } break; case R.id.btn1: if(!two) { num1+=1; allString+=1; txtContent.setText(allString); } else { num2+=1; allString+=1; txtContent.setText(allString); } break; case R.id.btn2: if(!two) { num1+=2; allString+=2; txtContent.setText(allString); } else { num2+=2; allString+=2; txtContent.setText(allString); } break; case R.id.btn3: if(!two) { num1+=3; allString+=3; txtContent.setText(allString); } else { num2+=3; allString+=3; txtContent.setText(allString); } break; case R.id.btn4: if(!two) { num1+=4; allString+=4; txtContent.setText(allString); } else { num2+=4; allString+=4; txtContent.setText(allString); } break; case R.id.btn5: if(!two) { num1+=5; allString+=5; txtContent.setText(allString); } else { num2+=5; allString+=5; txtContent.setText(allString); } break; case R.id.btn6: if(!two) { num1+=6; allString+=6; txtContent.setText(allString); } else { num2+=6; allString+=6; txtContent.setText(allString); } break; case R.id.btn7: if(!two) { num1+="7"; allString+=7; txtContent.setText(allString); } else { num2+="7"; allString+=7; txtContent.setText(allString); } break; case R.id.btn8: if(!two) { num1+=8; allString+=8; txtContent.setText(allString); } else { num2+=8; allString+=8; txtContent.setText(allString); } break; case R.id.btn9: if(!two) { num1+=9; allString+=9; txtContent.setText(allString); } else { num2+=9; allString+=9; txtContent.setText(allString); } break; case R.id.btnMS: if(!two) { endNum= Math.sin(Double.valueOf(num1)); allString+="\n 正弦 \n"; txtContent.setText(allString); two=true; } break; case R.id.btnMC: if(!two) { endNum=Math.cos(Double.valueOf(num1)); allString+="\n 余弦 \n"; txtContent.setText(allString); two=true; } break; case R.id.btnBack: Toast.makeText(CounterMain.this, "你好！此功能暂为开发！！", 500).show(); break; case R.id.btnClear: num1=""; num2=""; two=false; allString=""; txtContent.setText(allString); break; case R.id.btnXX: if(!two) { endNum=Double.valueOf(num1)*Double.valueOf(num1); allString+="\n平方"; two=true; txtContent.setText(allString); } break; case R.id.btnET: if(!two) { endNum=Math.sqrt(Double.valueOf(num1)); allString+="\n开方"; two=true; txtContent.setText(allString); } break; case R.id.btnXY: if(!two) { signString=1; allString+="\n次方"; two=true; txtContent.setText(allString); } break; case R.id.btndian: if(!two) { num1+="."; allString+="."; txtContent.setText(allString); } else { num2+="."; allString+="."; txtContent.setText(allString); } break; case R