按钮onClick事件在Android中不会触发

我已经为android中的一个活动编写了以下代码：

import java.util.Date;
import android.os.Bundle;
import android.app.Activity;
import android.util.Log;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.DatePicker;
import android.widget.EditText;
import android.widget.TextView;
import android.support.v4.app.NavUtils;

public class Step1Activity extends Activity {

  @Override
  public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_step1);
    Button calculateButton = (Button) findViewById(R.id.buttonCalculate);
    calculateButton.setOnClickListener(new OnClickListener() {

      public void onClick(View v) {

        EditText fullname= (EditText)findViewById(R.id.editText1); // !!Breakpoint!!
        DatePicker birthdate= (DatePicker)findViewById(R.id.datePickerDateofBirth);
        int test=birthdate.getYear();
        TextView result=(TextView)findViewById(R.id.textView2);

        result.setText(new Integer( lifepath).toString()+" "+new Integer(test).toString());

      }
    });
  }

  @Override
  public boolean onCreateOptionsMenu(Menu menu) {
    getMenuInflater().inflate(R.menu.activity_step1, menu);
    return true;
  }

}

但是，当我单击包含onclick事件的calculateButton时，它什么也不做。 我的文本视图根本没有更新

在eclipse中，我甚至在onClick的第一行上放置了一个断点，它从未停止过

以下是活动1的布局：

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent" >

    <LinearLayout
        android:layout_width="fill_parent"
        android:layout_height="fill_parent"
        android:orientation="vertical" >



    <TextView
        android:id="@+id/textView1"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:layout_alignParentLeft="true"
        android:layout_alignParentTop="true"
        android:text="Your full name:"
        android:textAppearance="?android:attr/textAppearanceMedium" />

    <EditText
        android:id="@+id/editText1"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:layout_marginTop="14dp"
        android:ems="10"
        android:inputType="textPersonName" />

    <TextView
        android:id="@+id/TextView01"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:layout_alignParentLeft="true"
        android:layout_margin="5dip"
        android:layout_below="@+id/editText1"
        android:text="Your date of birth:"
        android:textAppearance="?android:attr/textAppearanceMedium" />

    <DatePicker
        android:id="@+id/datePickerDateofBirth"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content" />

    <Button
        android:id="@+id/buttonCalculate"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:gravity="center"
        android:text="Calculate Now" />

    <TextView
        android:id="@+id/textView2"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:text="Large Text"
        android:textAppearance="?android:attr/textAppearanceLarge" />

    </LinearLayout>
</RelativeLayout>

显然，该按钮的事件工作正常

谢谢，

您导入了这个吗

import android.view.View.OnClickListener;

试试这个

将这4行放在setOnClickListener之外

EditText fullname= (EditText)findViewById(R.id.editText1); // !!Breakpoint!!
DatePicker birthdate= (DatePicker)findViewById(R.id.datePickerDateofBirth);
int test=birthdate.getYear();
final TextView result=(TextView)findViewById(R.id.textView2);

Button calculateButton = (Button) findViewById(R.id.buttonCalculate);
calculateButton.setOnClickListener(new OnClickListener() {

 public void onClick(View v) {

    result.setText(new Integer( lifepath).toString()+" "+new Integer(test).toString());

  }
}

Button calculateButton = (Button) findViewById(R.id.buttonCalculate);
calculateButton.setOnClickListener(new View.OnClickListener() {

    @Override
    public void onClick(View v) {

    EditText fullname= (EditText)findViewById(R.id.editText1); // !!Breakpoint!!
    DatePicker birthdate= (DatePicker)findViewById(R.id.datePickerDateofBirth);
    int test=birthdate.getYear();
    TextView result=(TextView)findViewById(R.id.textView2);

    result.setText(new Integer( lifepath).toString()+" "+new Integer(test).toString());

  }
});

Button calculateButton = (Button) findViewById(R.id.buttonCalculate);
calculateButton.setOnClickListener(this);

// outside of oncreate. This will automatically created when you're let implement the onclick listener to your activity
@Override
public void onClick(View v) 
{
    switch(v.getId())
    {

    case R.id.buttonCalculate:

        EditText fullname= (EditText)findViewById(R.id.editText1); // !!Breakpoint!!
        DatePicker birthdate= (DatePicker)findViewById(R.id.datePickerDateofBirth);
        int test=birthdate.getYear();
        TextView result=(TextView)findViewById(R.id.textView2);

        result.setText(new Integer( lifepath).toString()+" "+new Integer(test).toString());

    break;
    }
}

请参见我的代码中的工作原理

 btnSignUp = (Button) findViewById(R.id.btnSignUp);

    btnSignIn.setOnClickListener(new OnClickListener() {

        @Override
        public void onClick(View v) {
            // TODO Auto-generated method stub
            Intent i = new Intent(WepwareActivity.this, SignInActivity.class);
            startActivity(i);
        }
    });

你们进口这个了吗

import android.view.View.OnClickListener;

试试这个

将这4行放在setOnClickListener之外

EditText fullname= (EditText)findViewById(R.id.editText1); // !!Breakpoint!!
DatePicker birthdate= (DatePicker)findViewById(R.id.datePickerDateofBirth);
int test=birthdate.getYear();
final TextView result=(TextView)findViewById(R.id.textView2);

Button calculateButton = (Button) findViewById(R.id.buttonCalculate);
calculateButton.setOnClickListener(new OnClickListener() {

 public void onClick(View v) {

    result.setText(new Integer( lifepath).toString()+" "+new Integer(test).toString());

  }
}

Button calculateButton = (Button) findViewById(R.id.buttonCalculate);
calculateButton.setOnClickListener(new View.OnClickListener() {

    @Override
    public void onClick(View v) {

    EditText fullname= (EditText)findViewById(R.id.editText1); // !!Breakpoint!!
    DatePicker birthdate= (DatePicker)findViewById(R.id.datePickerDateofBirth);
    int test=birthdate.getYear();
    TextView result=(TextView)findViewById(R.id.textView2);

    result.setText(new Integer( lifepath).toString()+" "+new Integer(test).toString());

  }
});

Button calculateButton = (Button) findViewById(R.id.buttonCalculate);
calculateButton.setOnClickListener(this);

// outside of oncreate. This will automatically created when you're let implement the onclick listener to your activity
@Override
public void onClick(View v) 
{
    switch(v.getId())
    {

    case R.id.buttonCalculate:

        EditText fullname= (EditText)findViewById(R.id.editText1); // !!Breakpoint!!
        DatePicker birthdate= (DatePicker)findViewById(R.id.datePickerDateofBirth);
        int test=birthdate.getYear();
        TextView result=(TextView)findViewById(R.id.textView2);

        result.setText(new Integer( lifepath).toString()+" "+new Integer(test).toString());

    break;
    }
}

请参见我的代码中的工作原理

 btnSignUp = (Button) findViewById(R.id.btnSignUp);

    btnSignIn.setOnClickListener(new OnClickListener() {

        @Override
        public void onClick(View v) {
            // TODO Auto-generated method stub
            Intent i = new Intent(WepwareActivity.this, SignInActivity.class);
            startActivity(i);
        }
    });

---

你可以这样试试-

1 View.OnClickListener

EditText fullname= (EditText)findViewById(R.id.editText1); // !!Breakpoint!!
DatePicker birthdate= (DatePicker)findViewById(R.id.datePickerDateofBirth);
int test=birthdate.getYear();
final TextView result=(TextView)findViewById(R.id.textView2);

Button calculateButton = (Button) findViewById(R.id.buttonCalculate);
calculateButton.setOnClickListener(new OnClickListener() {

 public void onClick(View v) {

    result.setText(new Integer( lifepath).toString()+" "+new Integer(test).toString());

  }
}

Button calculateButton = (Button) findViewById(R.id.buttonCalculate);
calculateButton.setOnClickListener(new View.OnClickListener() {

    @Override
    public void onClick(View v) {

    EditText fullname= (EditText)findViewById(R.id.editText1); // !!Breakpoint!!
    DatePicker birthdate= (DatePicker)findViewById(R.id.datePickerDateofBirth);
    int test=birthdate.getYear();
    TextView result=(TextView)findViewById(R.id.textView2);

    result.setText(new Integer( lifepath).toString()+" "+new Integer(test).toString());

  }
});

Button calculateButton = (Button) findViewById(R.id.buttonCalculate);
calculateButton.setOnClickListener(this);

// outside of oncreate. This will automatically created when you're let implement the onclick listener to your activity
@Override
public void onClick(View v) 
{
    switch(v.getId())
    {

    case R.id.buttonCalculate:

        EditText fullname= (EditText)findViewById(R.id.editText1); // !!Breakpoint!!
        DatePicker birthdate= (DatePicker)findViewById(R.id.datePickerDateofBirth);
        int test=birthdate.getYear();
        TextView result=(TextView)findViewById(R.id.textView2);

        result.setText(new Integer( lifepath).toString()+" "+new Integer(test).toString());

    break;
    }
}

2.点击监听器

EditText fullname= (EditText)findViewById(R.id.editText1); // !!Breakpoint!!
DatePicker birthdate= (DatePicker)findViewById(R.id.datePickerDateofBirth);
int test=birthdate.getYear();
final TextView result=(TextView)findViewById(R.id.textView2);

Button calculateButton = (Button) findViewById(R.id.buttonCalculate);
calculateButton.setOnClickListener(new OnClickListener() {

 public void onClick(View v) {

    result.setText(new Integer( lifepath).toString()+" "+new Integer(test).toString());

  }
}

Button calculateButton = (Button) findViewById(R.id.buttonCalculate);
calculateButton.setOnClickListener(new View.OnClickListener() {

    @Override
    public void onClick(View v) {

    EditText fullname= (EditText)findViewById(R.id.editText1); // !!Breakpoint!!
    DatePicker birthdate= (DatePicker)findViewById(R.id.datePickerDateofBirth);
    int test=birthdate.getYear();
    TextView result=(TextView)findViewById(R.id.textView2);

    result.setText(new Integer( lifepath).toString()+" "+new Integer(test).toString());

  }
});

Button calculateButton = (Button) findViewById(R.id.buttonCalculate);
calculateButton.setOnClickListener(this);

// outside of oncreate. This will automatically created when you're let implement the onclick listener to your activity
@Override
public void onClick(View v) 
{
    switch(v.getId())
    {

    case R.id.buttonCalculate:

        EditText fullname= (EditText)findViewById(R.id.editText1); // !!Breakpoint!!
        DatePicker birthdate= (DatePicker)findViewById(R.id.datePickerDateofBirth);
        int test=birthdate.getYear();
        TextView result=(TextView)findViewById(R.id.textView2);

        result.setText(new Integer( lifepath).toString()+" "+new Integer(test).toString());

    break;
    }
}

更新

从你的代码。首先，我得到了一个NumberFormatException，我刚刚删除了lifepath的文本视图的新整数，它似乎工作正常。见屏幕下方-

---

你可以这样试试-

1 View.OnClickListener

EditText fullname= (EditText)findViewById(R.id.editText1); // !!Breakpoint!!
DatePicker birthdate= (DatePicker)findViewById(R.id.datePickerDateofBirth);
int test=birthdate.getYear();
final TextView result=(TextView)findViewById(R.id.textView2);

Button calculateButton = (Button) findViewById(R.id.buttonCalculate);
calculateButton.setOnClickListener(new OnClickListener() {

 public void onClick(View v) {

    result.setText(new Integer( lifepath).toString()+" "+new Integer(test).toString());

  }
}

Button calculateButton = (Button) findViewById(R.id.buttonCalculate);
calculateButton.setOnClickListener(new View.OnClickListener() {

    @Override
    public void onClick(View v) {

    EditText fullname= (EditText)findViewById(R.id.editText1); // !!Breakpoint!!
    DatePicker birthdate= (DatePicker)findViewById(R.id.datePickerDateofBirth);
    int test=birthdate.getYear();
    TextView result=(TextView)findViewById(R.id.textView2);

    result.setText(new Integer( lifepath).toString()+" "+new Integer(test).toString());

  }
});

Button calculateButton = (Button) findViewById(R.id.buttonCalculate);
calculateButton.setOnClickListener(this);

// outside of oncreate. This will automatically created when you're let implement the onclick listener to your activity
@Override
public void onClick(View v) 
{
    switch(v.getId())
    {

    case R.id.buttonCalculate:

        EditText fullname= (EditText)findViewById(R.id.editText1); // !!Breakpoint!!
        DatePicker birthdate= (DatePicker)findViewById(R.id.datePickerDateofBirth);
        int test=birthdate.getYear();
        TextView result=(TextView)findViewById(R.id.textView2);

        result.setText(new Integer( lifepath).toString()+" "+new Integer(test).toString());

    break;
    }
}

2.点击监听器

EditText fullname= (EditText)findViewById(R.id.editText1); // !!Breakpoint!!
DatePicker birthdate= (DatePicker)findViewById(R.id.datePickerDateofBirth);
int test=birthdate.getYear();
final TextView result=(TextView)findViewById(R.id.textView2);

Button calculateButton = (Button) findViewById(R.id.buttonCalculate);
calculateButton.setOnClickListener(new OnClickListener() {

 public void onClick(View v) {

    result.setText(new Integer( lifepath).toString()+" "+new Integer(test).toString());

  }
}

Button calculateButton = (Button) findViewById(R.id.buttonCalculate);
calculateButton.setOnClickListener(new View.OnClickListener() {

    @Override
    public void onClick(View v) {

    EditText fullname= (EditText)findViewById(R.id.editText1); // !!Breakpoint!!
    DatePicker birthdate= (DatePicker)findViewById(R.id.datePickerDateofBirth);
    int test=birthdate.getYear();
    TextView result=(TextView)findViewById(R.id.textView2);

    result.setText(new Integer( lifepath).toString()+" "+new Integer(test).toString());

  }
});

Button calculateButton = (Button) findViewById(R.id.buttonCalculate);
calculateButton.setOnClickListener(this);

// outside of oncreate. This will automatically created when you're let implement the onclick listener to your activity
@Override
public void onClick(View v) 
{
    switch(v.getId())
    {

    case R.id.buttonCalculate:

        EditText fullname= (EditText)findViewById(R.id.editText1); // !!Breakpoint!!
        DatePicker birthdate= (DatePicker)findViewById(R.id.datePickerDateofBirth);
        int test=birthdate.getYear();
        TextView result=(TextView)findViewById(R.id.textView2);

        result.setText(new Integer( lifepath).toString()+" "+new Integer(test).toString());

    break;
    }
}

更新

从你的代码。首先，我得到了一个NumberFormatException，我刚刚删除了lifepath的文本视图的新整数，它似乎工作正常。见屏幕下方-

---

---

尝试在此处显示按钮的xml布局代码吗？OnClickListener和View.OnClickListener之间没有区别，因为导入包括View.View.OnClickListener，但我还是尝试了，但没有成功。尝试一下。您能在此处显示按钮的xml布局代码吗？OnClickListener和View.OnClickListener之间没有区别，因为导入包括View.View.OnClickListener，但我还是试过了，但没用。我照你说的做了，我把台词放在了点击前。仍然在setOnClickListener中。它不起作用。Outside的意思是在这一行之前calculateButton.setOnClickListenernew OnClickListener看，我已经编辑了我的答案，你永远不能这样做，你的代码甚至都不会编译。必须在内部定义结果TextView，否则找不到对象。声明最终TextView结果=TextViewfindViewByIdR.id.textView2；这应该行得通，我把结果、生命路径和测试做了最后的决定，现在可以编译了。但问题依然存在。没有更新正在发生。我在我的第一篇文章中添加了几行关于如何调用这个活动1的内容。我按照你说的做了，我把这些内容放在了onClick之前。仍然在setOnClickListener中。它不起作用。Outside的意思是在这一行之前calculateButton.setOnClickListenernew OnClickListener看，我已经编辑了我的答案，你永远不能这样做，你的代码甚至都不会编译。必须在内部定义结果TextView，否则找不到对象。声明最终TextView结果=TextViewfindViewByIdR.id.textView2；这应该行得通，我把结果、生命路径和测试做了最后的决定，现在可以编译了。但问题依然存在。没有更新正在发生。我在第一篇文章中添加了几行关于如何调用此活动1的内容。我尝试了两种解决方案，但似乎都没有做出任何更改。@AramAzhari在更新了您的问题之后。这似乎是对的。只需尝试清理项目并重新启动工作区一次。我想这会管用的。并且，用完整的xml代码编辑您的问题。也就是说，发布完整的布局，从第一个活动创建另一个活动，然后在第二个活动上运行代码。正如我在第一篇文章中提到的，mainactivity上的click命令工作得很好。问题是第二项活动。”setContentViewR.layout.activity_step1；'这是我的主要活动，叫做activity1。出现问题的按钮位于activity1中，而不是主活动中：public void onCreateBundle savedInstanceState{super.onCreatesavedInstanceState；setContentViewR.layout.activity_main；button startButton=ButtonfindViewByIdR.id.buttonStart；startButton.SetOnClickListener新建OnClickListener{public void onClickView v{setContentViewR.layout.activity_step1；}}；}我尝试了两种解决方案，它们似乎都没有做任何更改。@AramAzhari在更新了您的问题之后。这似乎是正确的。只要尝试清理您的项目并重新启动您的工作区一次。我认为这会起作用。并且，用完整的xml代码编辑您的问题。也就是说，发布您的完整布局以从第一个活动创建另一个活动，然后运行e第二个活动的代码。main活动上的click命令工作正常，正如我在第一篇文章中提到的。问题是第二个活动。'setContentViewR.layout.activity_step1；'这是我调用activity1的主活动。出现问题的按钮在activity1中，而不是在主活动中：public void onCreateBundle savedInstanceState{super.onCreatesavedInstanceState；setContentViewR.layout.activity_main；按钮startButton=ButtonfindViewByIdR.id.buttonStart；startButton.SetOnClickListener新建OnClickListener{ public void onClickView v{setContentViewR.layout.activity_step1；}}；}