今天写了个小程序，在写按钮监听了时候出现了问题，反复检查代码，发现加上button.setOnClickListener(new Buttonlistener());这句话后，一运行，程序就终止运行，注释掉后，没问题，布局可以显示，本人菜鸟，望大神解答，如对问题有困惑，可指出，一直在，随时恭候。
感觉把你的代码或者log信息粘出来或许更好，这样看不出来你的错误在哪
详细说下，先在布局里添加一个button和textview控件，然后在mainactivity里实现点击按钮设置textview的显示内容，个人感觉思路很简单啊，代码也没报错，就是一运行就终止，实在不知其所以然了。以下是代码，注意中间一行我给注释了，不注释就会运行停止。
package com.wh.test_listener;
import android.app.Activity;
import android.app.ActionBar;
import android.app.Fragment;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.TextView;
import android.os.Build;
public class MainActivity extends Activity {
private Button button;
private TextView textView;
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
button = (Button)findViewById(R.id.button);
textView = (TextView)findViewById(R.id.textview);
// button.setOnClickListener(new Buttonlistener());
if (savedInstanceState == null) {
getFragmentManager().beginTransaction()
.add(R.id.container, new PlaceholderFragment())
.commit();
}
}
public class Buttonlistener implements OnClickListener{
@Override
public void onClick(View arg0) {
textView.setText("NIHAO ");
}
}
@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 boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
/**
* A placeholder fragment containing a simple view.
*/
public static class PlaceholderFragment extends Fragment {
public PlaceholderFragment() {
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.fragment_main, container, false);
return rootView;
}
}
}