Question

所有其他事情都很完美。只有按钮不起作用。我还在声明中检查了id。它与XML文件中的相同。我在onClick()添加Toast进行检查。但是吐司不会显示在输出中。所以onClick()没有工作。

我使用comment（// --------------------------------）

突出显示了一个按钮代码

这是我的代码：

package com.smartrix.professionals;


public class Fragment_Plus extends Fragment implements CompoundButton.OnCheckedChangeListener{

ToggleButton need,awarness,product;
EditText title,disc,moneyRange,username,professions,city;
String Fusername,Ftitle,Fprofessions,Fdiscription,Ftype,Farea,Fcity;
Spinner area;
TextView inputMoneyRange;
SeekBar money;
Button post;

public Fragment_Plus(){}

// Tab view to select Post type
@Override
public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
    if (isChecked) {
        Ftype = buttonView.getText().toString();
        buttonView.setBackgroundColor(getResources().getColor(R.color.colorPrimaryDark));

        if (need.getId() == buttonView.getId()) {
            awarness.setBackgroundColor(getResources().getColor(R.color.plus_tab));
            product.setBackgroundColor(getResources().getColor(R.color.plus_tab));

            username.setHint("Enter Username Here");
            disc.setVisibility(View.VISIBLE);
            professions.setVisibility(View.VISIBLE);
            title.setVisibility(View.VISIBLE);
            money.setVisibility(View.VISIBLE);
            moneyRange.setVisibility(View.VISIBLE);
            inputMoneyRange.setVisibility(View.VISIBLE);

            city.setVisibility(View.GONE);

        } else if (awarness.getId() == buttonView.getId()) {
            need.setBackgroundColor(getResources().getColor(R.color.plus_tab));
            product.setBackgroundColor(getResources().getColor(R.color.plus_tab));

            username.setHint("Enter Username Here");
            disc.setVisibility(View.VISIBLE);
            professions.setVisibility(View.VISIBLE);
            title.setVisibility(View.VISIBLE);
            money.setVisibility(View.VISIBLE);
            moneyRange.setVisibility(View.VISIBLE);
            inputMoneyRange.setVisibility(View.VISIBLE);

            city.setVisibility(View.GONE);

        } else if (product.getId() == buttonView.getId()) {
            need.setBackgroundColor(getResources().getColor(R.color.plus_tab));
            awarness.setBackgroundColor(getResources().getColor(R.color.plus_tab));

            city.setVisibility(View.VISIBLE);
            username.setHint("Enter Shop Name");

            disc.setVisibility(View.GONE);
            professions.setVisibility(View.GONE);
            title.setVisibility(View.GONE);
            money.setVisibility(View.GONE);
            moneyRange.setVisibility(View.GONE);
            inputMoneyRange.setVisibility(View.GONE);
        }
    }
}


@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {

    View view = inflater.inflate(R.layout.fragment__plus,container,false);

    need = (ToggleButton) view.findViewById(R.id.need_Toggle);
    awarness = (ToggleButton) view.findViewById(R.id.awarness_Toggle);
    product = (ToggleButton) view.findViewById(R.id.product_Toggle);
    username = (EditText) view.findViewById(R.id.createPostUsername);
    title = (EditText) view.findViewById(R.id.createPostTitle);
    disc = (EditText) view.findViewById(R.id.createPostDisc);
    professions = (EditText) view.findViewById(R.id.createPostProfession);
    // -------------------------------------------
    post = (Button) view.findViewById(R.id.btn_post);
    //--------------------------------------------
    moneyRange = (EditText) view.findViewById(R.id.createPostMoneyRange);
    inputMoneyRange = (TextView) view.findViewById(R.id.createPostMoney);
    money = (SeekBar) view.findViewById(R.id.createPostSetMoney);
    area = (Spinner) view.findViewById(R.id.createPostArea);
    city = (EditText) view.findViewById(R.id.createPostCity);

    ArrayAdapter<String> areaAdapter = new ArrayAdapter<String>(getContext(),android.R.layout.simple_list_item_1,
                        getResources().getStringArray(R.array.postArea));
    areaAdapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
    area.setAdapter(areaAdapter);

    // ------------------------------------------------------
    post.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v)
        {
            Toast.makeText(getContext(),"Btn Clicked",Toast.LENGTH_LONG);
            if(Ftype == "Need"){

                Fusername = username.getText().toString();
                Ftitle = title.getText().toString();
                Fprofessions = professions.getText().toString();
                Fdiscription = disc.getText().toString();
                Farea = area.getSelectedItem().toString();

                backGroundTask bgTask = new backGroundTask(getContext());
                bgTask.execute("add_need",Fusername,Ftitle,Fprofessions,Fdiscription,Ftype,Farea);

            } else if(Ftype == "Awarness"){

                // Awarness Background task Here

            } else if(Ftype == "Product"){

                Fusername = username.getText().toString();
                Fcity = city.getText().toString();
                Farea = area.getSelectedItem().toString();

                backGroundTask bgTask = new backGroundTask(getContext());
                bgTask.execute("add_shop",Fusername,Fcity,Ftype,Farea);
            }

        }
    });
   //----------------------------------------

    money.setOnSeekBarChangeListener(
            new SeekBar.OnSeekBarChangeListener() {
                @Override
                public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {
                    inputMoneyRange.setText("Range of Money :: " + money.getProgress() + " to "+ money.getMax());
                }

                @Override
                public void onStartTrackingTouch(SeekBar seekBar) {
                    try{
                        money.setMax(Integer.parseInt(moneyRange.getText().toString()));
                    } catch(NumberFormatException nfe) {
                        Toast.makeText(getActivity(), "Not Valid Number", Toast.LENGTH_LONG).show();
                    }
                }

                @Override
                public void onStopTrackingTouch(SeekBar seekBar) {

                }
            }

    );

    need.setOnCheckedChangeListener(this);
    awarness.setOnCheckedChangeListener(this);
    product.setOnCheckedChangeListener(this);

    return view;
}

}

这是我的布局文件

<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent" >

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
tools:context="com.smartrix.professionals.Fragment_Plus">

<LinearLayout
    android:orientation="horizontal"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:weightSum="3">

    <ToggleButton
        android:id="@+id/need_Toggle"
        android:layout_weight="1"
        android:textOn="Need"
        android:background="@color/plus_tab"
        android:textSize="17sp"
        android:textOff="@string/postNeedToggleButton"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content" />

    <ToggleButton
        android:id="@+id/awarness_Toggle"
        android:layout_weight="1"
        android:textSize="17sp"
        android:textOn="Awarness"
        android:textOff="@string/postAwarnessToggleButton"
        android:background="@color/plus_tab"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content" />

    <ToggleButton
        android:id="@+id/product_Toggle"
        android:layout_weight="1"
        android:textSize="17sp"
        android:textOn="Product"
        android:textOff="@string/postProductToggleButton"
        android:background="@color/plus_tab"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content" />

</LinearLayout>

<Spinner
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:id="@+id/createPostArea" />

<EditText
    android:layout_marginLeft="10dp"
    android:drawableLeft="@mipmap/bottom_profile"
    android:layout_marginTop="10dp"
    android:drawablePadding="10dp"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:text=""
    android:hint="@string/post_Username"
    android:ems="10"
    android:id="@+id/createPostUsername" />

<EditText
    android:layout_marginLeft="10dp"
    android:drawableLeft="@mipmap/title"
    android:layout_marginTop="10dp"
    android:drawablePadding="10dp"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:text="@string/postTitle"
    android:hint="@string/title_of_post"
    android:ems="10"
    android:id="@+id/createPostTitle" />

<EditText
    android:layout_marginLeft="10dp"
    android:drawableLeft="@mipmap/ic_action_action_language"
    android:layout_marginTop="10dp"
    android:drawablePadding="10dp"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:text=""
    android:hint="Enter City Name"
    android:ems="10"
    android:id="@+id/createPostCity" />

<EditText
    android:layout_marginLeft="10dp"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:drawableLeft="@mipmap/discription"
    android:drawablePadding="10dp"
    android:inputType="textMultiLine"
    android:ems="10"
    android:text="@string/discriptionEditText"
    android:hint="@string/discription_of_post"
    android:lines="5"
    android:id="@+id/createPostDisc" />

<EditText
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:drawableLeft="@mipmap/bottom_profile"
    android:drawablePadding="10dp"
    android:layout_marginBottom="20dp"
    android:layout_marginTop="20dp"
    android:layout_marginLeft="10dp"
    android:ems="10"
    android:id="@+id/createPostProfession"
    android:hint="Profession you need"/>

<EditText
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:drawableLeft="@mipmap/money"
    android:drawablePadding="10dp"
    android:layout_marginLeft="10dp"
    android:inputType="number"
    android:ems="10"
    android:id="@+id/createPostMoneyRange"
    android:hint="Set Maximum money"/>

<SeekBar
    android:layout_marginLeft="10dp"
    android:layout_marginRight="10dp"
    android:layout_marginTop="20dp"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:layout_marginBottom="20dp"
    android:id="@+id/createPostSetMoney"/>

 <TextView
     android:id="@+id/createPostMoney"
     android:layout_marginLeft="10dp"
     android:layout_marginBottom="20dp"
     android:layout_width="wrap_content"
     android:layout_height="wrap_content"
     android:text="Range of Money :: "
     android:textSize="18dp"
     android:layout_marginRight="10dp"
     android:textColor="#000000"/>

<Button
    android:id="@+id/btn_post"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_gravity="center_horizontal"
    android:text="Post"/>

 </LinearLayout>

 </ScrollView>

Answer 1

您没有看到Toast的原因是因为您从未在其上调用show()。它必须看起来像这样

Toast.makeText(getContext(),"Btn Clicked",Toast.LENGTH_LONG).show();

除了在Java中，您不会将字符串与==进行比较，而是使用equals()方法进行比较。

Answer 2

您需要在Toast上添加show()。即。

Toast.makeText(getContext(),"Btn Clicked",Toast.LENGTH_LONG).show();

显示Toast。

Answer 3

变化：

Toast.makeText(getContext(),"Btn Clicked",Toast.LENGTH_LONG);

要：

Toast.makeText(getContext(),"Btn Clicked",Toast.LENGTH_LONG).show();

Android按钮不起作用

这是我的代码：

这是我的布局文件

3 个答案: