不能将OnClickListener解析为类型(Eclipse)

Hello im new to programming, im trying to construct my first simple application, im looking to play a short soundclip on the push of an ImageButton.

你好，我是编程新手，我正在尝试构造我的第一个简单的应用程序，我想在一个ImageButton的push上播放一个短的声音剪辑。

while typing out my code i get an error with the statement;

在输入代码时，我在语句中得到一个错误;

 Button.setOnClickListener(new OnClickListener() {

The on click listener is underlined and when i go to the error eclipse tells me that OnClickListener cannot be resolved to a type.

在单击监听器上加下划线，当我访问错误时，eclipse告诉我OnClickListener不能被解析为类型。

Here is my code:

这是我的代码:

import android.app.Activity;
import android.os.Bundle;
import android.view.view;
import android.view.view.OnClickListener;
import android.widget.Button;
import android.widget.ImageButton;

public class main extends Activity {
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main);

final ImageButton Button = (ImageButton) findViewById(R.id.imageButton1);
Button.setOnClickListener(new OnClickListener() {
    public void onClick(View v) {
        // Perform action on clicks

    }
});

I read a suggestion that said to add;

我读了一个建议，说要加上;

import android.view.view;

aswell as

以及

import android.view.view.OnClickListener;

These import statements are also highlighted. Could these errors be caused by how eclipse is set up on my computer?

这些导入语句也被突出显示。这些错误可能是由于eclipse是如何在我的计算机上设置的吗?

Any help would be greatly appreciated

非常感谢您的帮助。

6 个解决方案

#1

For starters, it's always best to let Eclipse manage all imports by tapping Ctrl+Shift+O when you see an import error.

对于初学者来说，当您看到导入错误时，最好让Eclipse通过按Ctrl+Shift+O来管理所有导入。

It seems that your problem is due to:

看来你的问题是由于:

import android.view.view;

Which should be:

这应该是:

import android.view.View;

Same goes with android.view.View.OnClickListener.

android.view.View.OnClickListener一样。

If you remove the two lines you've manually added and hit Ctrl+Shift+O, everything should fix itself.

如果你删除了你手动添加的两行并按下Ctrl+Shift+O，所有的东西都应该修正。

#2

Add

添加

import android.view.View.OnclickListener

to your import section and it should work.

对于您的导入部分，它应该起作用。

#3

The second "view" in the import statement is a class (hence, OnClickListener is an inner class/interface) and should be capitalised:

import语句中的第二个“视图”是一个类(因此，OnClickListener是一个内部类/接口)，应该大写:

import android.view.View.OnClickListener;

#4

make sure your class implements OnClickListener

确保您的类实现了OnClickListener。

public class main extends Activity implements OnClickListener {

#5

if you still have error you can make the class abstract like this public abstract class MainActivity extends Activity implements OnClickListener {

如果您仍然有错误，您可以使类抽象像这个公共抽象类MainActivity扩展活动实现OnClickListener {

#6

If you are using the new Android Studio you must declare your new OnClickListener as View.OnClickListener. Otherwise Android Studio gets confused and won't understand.

如果您正在使用新的Android Studio，那么必须将新的OnClickListener声明为View.OnClickListener。否则，Android Studio会感到困惑，无法理解。

#1