我是Android的新手，想创建自定义点击侦听器，但是当我单击按钮时，以下代码无法执行任何操作。有人可以指导我吗
MainActivity的代码：
public class MainActivity extends AppCompatActivity {
CustomButton button;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
button = findViewById(R.id.custombutton);
button.setClickListener(new CustomButton.OnClickListener() {
@Override
public void onClick(View var1) {
Toast.makeText(MainActivity.this, "SGB Custom Button", Toast.LENGTH_SHORT).show();
}
});
}
}
自定义按钮的代码：
public class CustomButton extends android.support.v7.widget.AppCompatButton {
public OnClickListener event;
public CustomButton(Context context) {
super(context);
}
public CustomButton(Context context, AttributeSet attrs) {
super(context, attrs);
}
public CustomButton(Context context, AttributeSet attrs, int defStyleAttr) {
super(context, attrs, defStyleAttr);
}
public void setClickListener(OnClickListener event) {
this.event = event;
}
public interface OnClickListener {
public void onClick(View var1);
}
}
下面的代码应该工作：
customButton类：-----------------
public class customButton extends AppCompatButton implements View.OnClickListener {
private CustomOnClickListener event;
private Context mContext;
public customButton(Context context) {
super(context);
}
public customButton(Context context, AttributeSet attrs) {
super(context, attrs);
mContext = context;
setOnClickListener(this);
}
public customButton(Context context, AttributeSet attrs, int defStyleAttr) {
super(context, attrs, defStyleAttr);
}
@Override
public void onClick(View v) {
event.onClick(v);
}
public void setCustomClickListener(CustomOnClickListener event) {
this.event = event;
}
public interface CustomOnClickListener {
public void onClick(View var1);
}
}
MainActivity.class：----------------
public class MainActivity extends AppCompatActivity{
customButton button;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
button = findViewById(R.id.customButton);
button.setCustomClickListener(new customButton.CustomOnClickListener() {
@Override
public void onClick(View var1) {
Toast.makeText(MainActivity.this, "SGB Custom Button", Toast.LENGTH_SHORT).show();
}
});
}
}
activity_main.xml：-----------
<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout
xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent"
android:layout_height="match_parent">
<com.example.admin.accessories.customButton
android:layout_width="match_parent"
android:text="Button"
android:layout_height="wrap_content"
android:id="@+id/customButton"/>
</android.support.constraint.ConstraintLayout>
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