我试图为我的activity_main布局中声明的按钮添加onClick()但是当我尝试在MainActivity.java中声明一个按钮时,我收到错误:
The method setOnClickListener(View.OnClickListener) in the type View is not applicable for the arguments (MainActivity)
我已经搜索了错误并找到了解决方案,说明要导入以下import android.view.View.OnClickListener;
,但这并没有解决问题。
有人能发现我的实施有什么问题吗?
以下是声明按钮和随附的case语句的代码:
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Button mClickButton1 = (Button)findViewById(R.id.cameraBtn);
mClickButton1.setOnClickListener(this);
Button mClickButton2 = (Button)findViewById(R.id.searchBtn);
mClickButton2.setOnClickListener(this);
}
//handle button clicks
public void onClick(View v) {
switch (v.getId()) {
case R.id.cameraBtn: {
// start camera intent
Toast.makeText(this, "camera clicked", Toast.LENGTH_SHORT).show();
break;
}
case R.id.searchBtn: {
// search tree for matching debri
Toast.makeText(this, "search clicked", Toast.LENGTH_SHORT).show();
break;
}
}
}
答案 0 :(得分:2)
您需要声明您正在实施界面......
public class MyActivity extends Activity implements View.OnClickListener {