Java addListenerOnButton在andriod studio的片段中不起作用
这是片段代码,我在这里尝试了各种方法来实现按钮侦听器,但都不起作用。我尝试了addListenerOnbutton、OnClick方法,还尝试在mainactivity中使用此代码。但实际上没有一个有效。任何建议都能帮我很大的忙Java addListenerOnButton在andriod studio的片段中不起作用,java,android,tabs,onclicklistener,buttonclick,Java,Android,Tabs,Onclicklistener,Buttonclick,这是片段代码,我在这里尝试了各种方法来实现按钮侦听器,但都不起作用。我尝试了addListenerOnbutton、OnClick方法,还尝试在mainactivity中使用此代码。但实际上没有一个有效。任何建议都能帮我很大的忙 public class tab2 extends Fragment implements View.OnClickListener{ Button b1,b2,b3,b4,b5,b6,b7,b8,b9,b10,b11,b12,b13,b14,b15,b
public class tab2 extends Fragment implements View.OnClickListener{
Button b1,b2,b3,b4,b5,b6,b7,b8,b9,b10,b11,b12,b13,b14,b15,b16,b17,b18,b19;
View view;
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
addListenerOnButton();
// Inflate the layout for this fragment
return inflater.inflate(R.layout.fragment_tab2, container, false);
}
void addListenerOnButton(){
/*b1 = getView().findViewById(R.id.b1);
b1.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
System.out.println("Error has occurred");
}
});*/
/* b1 = getView().findViewById(R.id.b1);
b3 = getView().findViewById(R.id.b3);
b4 = getView().findViewById(R.id.b4);
b5 = getView().findViewById(R.id.b5);
b6 = getView().findViewById(R.id.b6);
b1.setOnClickListener(this);
b3.setOnClickListener(this);
b4.setOnClickListener(this);
b5.setOnClickListener(this);
b6.setOnClickListener(this);*/
}
public void Activity1()
{
Intent intent = new Intent(getContext(),Activity1.class);
startActivity(intent);
}
....... until Activity19().....
@Override
public void onClick(View v)
{
/*switch (v.getId()){
case R.id.b1:
Activity1();
break;
case R.id.b3:
Activity3();
break;
case R.id.b4:
Activity4();
break;
case R.id.b5:
Activity5();
break;
case R.id.b6:
Activity6();
break;
}*/
}
}
试试这样的
public class BlankFragment extends Fragment implements View.OnClickListener {
private Button b1, b2;
@Override
public void onViewCreated(@NonNull View view, @Nullable Bundle savedInstanceState) {
super.onViewCreated(view, savedInstanceState);
b1 = view.findViewById(R.id.b1);
b2 = view.findViewById(R.id.b2);
b1.setOnClickListener(this);
b2.setOnClickListener(this);
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
return inflater.inflate(R.layout.fragment_blank, container, false);
}
private void callActivity(Class activity) {
startActivity(new Intent(getContext(), activity));
}
@Override
public void onClick(View view) {
switch (view.getId()) {
case R.id.b1:
callActivity(FirstActivity.class);
break;
case R.id.b2:
callActivity(SecondActivity.class);
break;
}
}
试试这样的
public class BlankFragment extends Fragment implements View.OnClickListener {
private Button b1, b2;
@Override
public void onViewCreated(@NonNull View view, @Nullable Bundle savedInstanceState) {
super.onViewCreated(view, savedInstanceState);
b1 = view.findViewById(R.id.b1);
b2 = view.findViewById(R.id.b2);
b1.setOnClickListener(this);
b2.setOnClickListener(this);
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
return inflater.inflate(R.layout.fragment_blank, container, false);
}
private void callActivity(Class activity) {
startActivity(new Intent(getContext(), activity));
}
@Override
public void onClick(View view) {
switch (view.getId()) {
case R.id.b1:
callActivity(FirstActivity.class);
break;
case R.id.b2:
callActivity(SecondActivity.class);
break;
}
}
谢谢,先生,应用程序正在打开,但当我点击按钮时,应用程序被强制停止。但它仍然不能正常工作。我是否需要做任何其他更改??您是否可以共享您的日志,让我们看看为什么crashingandroid.content.ActivityNotFoundException:找不到显式活动类{com.navigation.tabs/com.navigation.tabs.Activity1};您是否在AndroidManifest.xml中声明了此活动?谢谢您,先生,我得到了输出。先生,应用程序正在打开,但当我单击按钮时,应用程序被强制停止。但它仍然不能正常工作。我是否需要做任何其他更改??您是否可以共享您的日志,让我们看看为什么crashingandroid.content.ActivityNotFoundException:找不到显式活动类{com.navigation.tabs/com.navigation.tabs.Activity1};您是否已在AndroidManifest.xml中声明了此活动?谢谢,先生,我已获得输出