在模拟器上面做了个简易的计算器,运行启动没问题 可是一进入模拟器,计算机就自动停止;日志如下09-16 20:15:19.501: E/StrictMode(638): at android.os.AsyncTask$2.call(AsyncTask.java:287)
09-16 20:15:19.501: E/StrictMode(638): at java.util.concurrent.FutureTask.run(FutureTask.java:234)
09-16 20:15:19.501: E/StrictMode(638): at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1080)
09-16 20:15:19.501: E/StrictMode(638): at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:573)
09-16 20:15:19.501: E/StrictMode(638): at java.lang.Thread.run(Thread.java:856)
09-16 20:15:19.501: W/ActivityManager(278): Unbind failed: could not find connection for android.os.BinderProxy@40f35f98
09-16 20:15:19.511: E/ActivityThread(638): Service com.android.exchange.ExchangeService has leaked ServiceConnection com.android.emailcommon.service.ServiceProxy$ProxyConnection@40d55928 that was originally bound here
09-16 20:15:19.511: E/ActivityThread(638): android.app.ServiceConnectionLeaked: Service com.android.exchange.ExchangeService has leaked ServiceConnection com.android.emailcommon.service.ServiceProxy$ProxyConnection@40d55928 that was originally bound here
09-16 20:15:19.511: E/ActivityThread(638): at android.app.LoadedApk$ServiceDispatcher.<init>(LoadedApk.java:969)
09-16 20:15:19.511: E/ActivityThread(638): at android.app.LoadedApk.getServiceDispatcher(LoadedApk.java:863)
09-16 20:15:19.511: E/ActivityThread(638): at android.app.ContextImpl.bindService(ContextImpl.java:1418)
09-16 20:15:19.511: E/ActivityThread(638): at android.app.ContextImpl.bindService(ContextImpl.java:1407)
09-16 20:15:19.511: E/ActivityThread(638): at android.content.ContextWrapper.bindService(ContextWrapper.java:473)
09-16 20:15:19.511: E/ActivityThread(638): at com.android.emailcommon.service.ServiceProxy.setTask(ServiceProxy.java:157)
09-16 20:15:19.511: E/ActivityThread(638): at com.android.emailcommon.service.ServiceProxy.setTask(ServiceProxy.java:145)
09-16 20:15:19.511: E/ActivityThread(638): at com.android.emailcommon.service.ServiceProxy.test(ServiceProxy.java:191)
09-16 20:15:19.511: E/ActivityThread(638): at com.android.exchange.ExchangeService$7.run(ExchangeService.java:1850)
09-16 20:15:19.511: E/ActivityThread(638): at com.android.emailcommon.utility.Utility$2.doInBackground(Utility.java:551)
09-16 20:15:19.511: E/ActivityThread(638): at com.android.emailcommon.utility.Utility$2.doInBackground(Utility.java:549)
09-16 20:15:19.511: E/ActivityThread(638): at android.os.AsyncTask$2.call(AsyncTask.java:287)
09-16 20:15:19.511: E/ActivityThread(638): at java.util.concurrent.FutureTask.run(FutureTask.java:234)
09-16 20:15:19.511: E/ActivityThread(638): at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1080)
09-16 20:15:19.511: E/ActivityThread(638): at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:573)
09-16 20:15:19.511: E/ActivityThread(638): at java.lang.Thread.run(Thread.java:856)
09-16 20:15:19.511: E/StrictMode(638): null
09-16 20:15:19.511: E/StrictMode(638): android.app.ServiceConnectionLeaked: Service com.android.exchange.ExchangeService has leaked ServiceConnection com.android.emailcommon.service.ServiceProxy$ProxyConnection@40d55928 that was originally bound here
09-16 20:15:19.511: E/StrictMode(638): at android.app.LoadedApk$ServiceDispatcher.<init>(LoadedApk.java:969)
09-16 20:15:19.511: E/StrictMode(638): at android.app.LoadedApk.getServiceDispatcher(LoadedApk.java:863)
09-16 20:15:19.511: E/StrictMode(638): at android.app.ContextImpl.bindService(ContextImpl.java:1418)
09-16 20:15:19.511: E/StrictMode(638): at android.app.ContextImpl.bindService(ContextImpl.java:1407)
09-16 20:15:19.511: E/StrictMode(638): at android.content.ContextWrapper.bindService(ContextWrapper.java:473)
09-16 20:15:19.511: E/StrictMode(638): at com.android.emailcommon.service.ServiceProxy.setTask(ServiceProxy.java:157)
09-16 20:15:19.511: E/StrictMode(638): at com.android.emailcommon.service.ServiceProxy.setTask(ServiceProxy.java:145)
09-16 20:15:19.511: E/StrictMode(638): at com.android.emailcommon.service.ServiceProxy.test(ServiceProxy.java:191)
09-16 20:15:19.511: E/StrictMode(638): at com.android.exchange.ExchangeService$7.run(ExchangeService.java:1850)
09-16 20:15:19.511: E/StrictMode(638): at com.android.emailcommon.utility.Utility$2.doInBackground(Utility.java:551)
09-16 20:15:19.511: E/StrictMode(638): at com.android.emailcommon.utility.Utility$2.doInBackground(Utility.java:549)
09-16 20:15:19.511: E/StrictMode(638): at android.os.AsyncTask$2.call(AsyncTask.java:287)
09-16 20:15:19.511: E/StrictMode(638): at java.util.concurrent.FutureTask.run(FutureTask.java:234)
09-16 20:15:19.511: E/StrictMode(638): at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1080)
09-16 20:15:19.511: E/StrictMode(638): at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:573)
09-16 20:15:19.511: E/StrictMode(638): at java.lang.Thread.run(Thread.java:856)
09-16 20:15:19.521: W/ActivityManager(278): Unbind failed: could not find connection for android.os.BinderProxy@40f63898
09-16 20:15:19.501: E/StrictMode(638): at java.util.concurrent.FutureTask.run(FutureTask.java:234)
09-16 20:15:19.501: E/StrictMode(638): at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1080)
09-16 20:15:19.501: E/StrictMode(638): at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:573)
09-16 20:15:19.501: E/StrictMode(638): at java.lang.Thread.run(Thread.java:856)
09-16 20:15:19.501: W/ActivityManager(278): Unbind failed: could not find connection for android.os.BinderProxy@40f35f98
09-16 20:15:19.511: E/ActivityThread(638): Service com.android.exchange.ExchangeService has leaked ServiceConnection com.android.emailcommon.service.ServiceProxy$ProxyConnection@40d55928 that was originally bound here
09-16 20:15:19.511: E/ActivityThread(638): android.app.ServiceConnectionLeaked: Service com.android.exchange.ExchangeService has leaked ServiceConnection com.android.emailcommon.service.ServiceProxy$ProxyConnection@40d55928 that was originally bound here
09-16 20:15:19.511: E/ActivityThread(638): at android.app.LoadedApk$ServiceDispatcher.<init>(LoadedApk.java:969)
09-16 20:15:19.511: E/ActivityThread(638): at android.app.LoadedApk.getServiceDispatcher(LoadedApk.java:863)
09-16 20:15:19.511: E/ActivityThread(638): at android.app.ContextImpl.bindService(ContextImpl.java:1418)
09-16 20:15:19.511: E/ActivityThread(638): at android.app.ContextImpl.bindService(ContextImpl.java:1407)
09-16 20:15:19.511: E/ActivityThread(638): at android.content.ContextWrapper.bindService(ContextWrapper.java:473)
09-16 20:15:19.511: E/ActivityThread(638): at com.android.emailcommon.service.ServiceProxy.setTask(ServiceProxy.java:157)
09-16 20:15:19.511: E/ActivityThread(638): at com.android.emailcommon.service.ServiceProxy.setTask(ServiceProxy.java:145)
09-16 20:15:19.511: E/ActivityThread(638): at com.android.emailcommon.service.ServiceProxy.test(ServiceProxy.java:191)
09-16 20:15:19.511: E/ActivityThread(638): at com.android.exchange.ExchangeService$7.run(ExchangeService.java:1850)
09-16 20:15:19.511: E/ActivityThread(638): at com.android.emailcommon.utility.Utility$2.doInBackground(Utility.java:551)
09-16 20:15:19.511: E/ActivityThread(638): at com.android.emailcommon.utility.Utility$2.doInBackground(Utility.java:549)
09-16 20:15:19.511: E/ActivityThread(638): at android.os.AsyncTask$2.call(AsyncTask.java:287)
09-16 20:15:19.511: E/ActivityThread(638): at java.util.concurrent.FutureTask.run(FutureTask.java:234)
09-16 20:15:19.511: E/ActivityThread(638): at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1080)
09-16 20:15:19.511: E/ActivityThread(638): at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:573)
09-16 20:15:19.511: E/ActivityThread(638): at java.lang.Thread.run(Thread.java:856)
09-16 20:15:19.511: E/StrictMode(638): null
09-16 20:15:19.511: E/StrictMode(638): android.app.ServiceConnectionLeaked: Service com.android.exchange.ExchangeService has leaked ServiceConnection com.android.emailcommon.service.ServiceProxy$ProxyConnection@40d55928 that was originally bound here
09-16 20:15:19.511: E/StrictMode(638): at android.app.LoadedApk$ServiceDispatcher.<init>(LoadedApk.java:969)
09-16 20:15:19.511: E/StrictMode(638): at android.app.LoadedApk.getServiceDispatcher(LoadedApk.java:863)
09-16 20:15:19.511: E/StrictMode(638): at android.app.ContextImpl.bindService(ContextImpl.java:1418)
09-16 20:15:19.511: E/StrictMode(638): at android.app.ContextImpl.bindService(ContextImpl.java:1407)
09-16 20:15:19.511: E/StrictMode(638): at android.content.ContextWrapper.bindService(ContextWrapper.java:473)
09-16 20:15:19.511: E/StrictMode(638): at com.android.emailcommon.service.ServiceProxy.setTask(ServiceProxy.java:157)
09-16 20:15:19.511: E/StrictMode(638): at com.android.emailcommon.service.ServiceProxy.setTask(ServiceProxy.java:145)
09-16 20:15:19.511: E/StrictMode(638): at com.android.emailcommon.service.ServiceProxy.test(ServiceProxy.java:191)
09-16 20:15:19.511: E/StrictMode(638): at com.android.exchange.ExchangeService$7.run(ExchangeService.java:1850)
09-16 20:15:19.511: E/StrictMode(638): at com.android.emailcommon.utility.Utility$2.doInBackground(Utility.java:551)
09-16 20:15:19.511: E/StrictMode(638): at com.android.emailcommon.utility.Utility$2.doInBackground(Utility.java:549)
09-16 20:15:19.511: E/StrictMode(638): at android.os.AsyncTask$2.call(AsyncTask.java:287)
09-16 20:15:19.511: E/StrictMode(638): at java.util.concurrent.FutureTask.run(FutureTask.java:234)
09-16 20:15:19.511: E/StrictMode(638): at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1080)
09-16 20:15:19.511: E/StrictMode(638): at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:573)
09-16 20:15:19.511: E/StrictMode(638): at java.lang.Thread.run(Thread.java:856)
09-16 20:15:19.521: W/ActivityManager(278): Unbind failed: could not find connection for android.os.BinderProxy@40f63898
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import android.os.Bundle;
import android.app.Activity;
import android.view.Menu;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;public class MainActivity extends Activity implements OnClickListener{
Button btn_0;
Button btn_1;
Button btn_2;
Button btn_3;
Button btn_4;
Button btn_5;
Button btn_6;
Button btn_7;
Button btn_8;
Button btn_9;
Button btn_clear;
Button btn_del;
Button btn_point;
Button btn_plus;
Button btn_munus;
Button btn_multiply;
Button btn_divide;
Button btn_equal;
EditText input;
Boolean clear_flag;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
btn_0=(Button) findViewById(R.id.btn_0);
btn_1=(Button) findViewById(R.id.btn_1);
btn_2=(Button) findViewById(R.id.btn_2);
btn_3=(Button) findViewById(R.id.btn_3);
btn_4=(Button) findViewById(R.id.btn_4);
btn_5=(Button) findViewById(R.id.btn_5);
btn_6=(Button) findViewById(R.id.btn_6);
btn_7=(Button) findViewById(R.id.btn_7);
btn_8=(Button) findViewById(R.id.btn_8);
btn_9=(Button) findViewById(R.id.btn_9);
btn_point=(Button) findViewById(R.id.btn_point);
btn_clear=(Button) findViewById(R.id.btn_clear);
btn_del=(Button) findViewById(R.id.btn_del);
btn_divide=(Button) findViewById(R.id.btn_divide);
Button btn_minus = (Button) findViewById(R.id.btn_minus);
btn_multiply=(Button) findViewById(R.id.btn_multiply);
btn_0=(Button) findViewById(R.id.btn_plus);
btn_equal=(Button) findViewById(R.id.btn_equal);
input=(EditText) findViewById(R.id.input);
btn_0.setOnClickListener(this);
btn_1.setOnClickListener(this);
btn_2.setOnClickListener(this);
btn_3.setOnClickListener(this);
btn_4.setOnClickListener(this);
btn_5.setOnClickListener(this);
btn_6.setOnClickListener(this);
btn_7.setOnClickListener(this);
btn_8.setOnClickListener(this);
btn_9.setOnClickListener(this);
btn_point.setOnClickListener(this);
btn_plus.setOnClickListener(this);
btn_minus.setOnClickListener(this);
btn_multiply.setOnClickListener(this);
btn_del.setOnClickListener(this);
btn_clear.setOnClickListener(this);
btn_divide.setOnClickListener(this);
btn_equal.setOnClickListener(this);
input.setOnClickListener(this);
} @Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
} @Override
public void onClick(View v) {
// TODO Auto-generated method stub
String str=input.getText().toString();
switch (v.getId()) {
case R.id.btn_0:
case R.id.btn_1:
case R.id.btn_2:
case R.id.btn_3:
case R.id.btn_4:
case R.id.btn_5:
case R.id.btn_6:
case R.id.btn_7:
case R.id.btn_8:
case R.id.btn_9:
case R.id.btn_point:
if(clear_flag){
clear_flag=false;
input.setText("");
}
input.setText(str+((Button)v).getText());
break; case R.id.btn_divide:
case R.id.btn_plus:
case R.id.btn_multiply:
case R.id.btn_minus:
input.setText(str+" "+((Button)v).getText()+" ");
break;
case R.id.btn_clear:
clear_flag=false;
input.setText("");
break;
case R.id.btn_del:if(clear_flag){
clear_flag=false;
input.setText("");
}
else if(str!=null&&str!=("")){
input.setText(str.substring(0,str.length()-1));
}
break;
case R.id.btn_equal:
getResult();
break;
}
}
private void getResult(){
String exp=input.getText().toString();
if(exp==null||exp.equals("")){
return;
}
if(!exp.contains(" ")){
return;
}
if(clear_flag){
clear_flag=false;
return;
}
clear_flag=true;
double result=0;
String s1=exp.substring(0,exp.indexOf(" "));
String op=exp.substring(exp.indexOf(" ")+1,exp.indexOf(" ")+2);
String s2=exp.substring(exp.indexOf(" ")+2,exp.indexOf(" ")+3);
if(!s1.equals("")&&!s2.equals("")){
double d1= Double.parseDouble(s1);
double d2= Double.parseDouble(s2);
if(op.equals("+")){
result=d1+d2;
}else if (op.equals("-")) {
result=d1-d2;
}else if (op.equals("×")){
result=d1*d2;
}else if (op.equals("÷")){
if(d2==0){
result=0;
}
else{
result=d1/d2;
}
}
if(!s1.contains(".")&&(!s2.contains("."))){
int r=(int) result;
input.setText(r+"");
}else{
input.setText(result+"");
}
}else if(!s1.equals("")&&s2.equals("")){
input.setText(exp);
}else if (s1.equals("")&&!s2.equals("")) {
double d2= Double.parseDouble(s2);
if(op.equals("+")){
result=0+d2;
}else if (op.equals("-")) {
result=0-d2;
}else if (op.equals("×")){
result=0;
}else if (op.equals("÷")){
result=0;
}
if(!s2.contains(".")){
int r=(int) result;
input.setText(r+"");
}else{
input.setText(result+"");
}
}else{
input.setText("");
}}
}
付错值了,btn_plus为空