用喜爱的按钮烘烤Android

Question

我正在做一个烹饪应用程序，我创建了一个喜欢的按钮，似乎工作好，我点击它，它会改变颜色。我试图创建一个敬酒那里当我点击按钮来西港岛线的消息多达说

added to favourites 

和

removed from favourites 

我已经使用了土司的代码不会有错误，应用完美运行，但敬酒不出现

这里是我的代码，我已经使用

Toast.java

import android.app.Activity; 
import android.os.Bundle; 
import android.view.View; 
import android.view.View.OnClickListener; 
import android.widget.CheckBox; 
import android.widget.Toast; 

public class Favourite_Toast extends Activity { 

private CheckBox fav; 

@Override 
public void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.recipe); 
    addListenerOnChk(); 
} 

public void addListenerOnChk() { 

    fav = (CheckBox) findViewById(R.id.checkBox); 

    fav.setOnClickListener(new OnClickListener() { 

     @Override 
     public void onClick(View v) { 

      if (((CheckBox) v).isChecked()) { 
       Toast.makeText(Favourite_Toast.this, 
         "Added to Favourites", Toast.LENGTH_LONG).show(); 
      } 
     } 
    }); 
} 
} 

favourite.xml

<?xml version="1.0" encoding="utf-8"?> 
<selector xmlns:android="http://schemas.android.com/apk/res/android"> 
<item android:state_checked="true" 
    android:drawable="@drawable/heart_red" /> 
<item android:state_checked="false" 
    android:drawable="@drawable/heart_grey" /> 
</selector> 

recipe.xml

<?xml version="1.0" encoding="utf-8"?> 
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" 
android:id="@+id/RelativeLayout1" 
android:layout_width="fill_parent" 
android:layout_height="fill_parent" 
android:background="@drawable/jbsbackground2" 
android:orientation="vertical" > 

<ImageView 
    android:id="@+id/iv_detail" 
    android:layout_width="fill_parent" 
    android:layout_height="150dp" 
    android:scaleType="centerCrop" 
    android:src="@drawable/barbecuedporkribs" /> 

<Button 
    android:id="@+id/button1" 
    android:layout_width="fill_parent" 
    android:layout_height="10dp" 
    android:layout_below="@+id/iv_detail" 
    android:background="#3D3C3A" /> 

<ScrollView 
    android:id="@+id/scrollView1" 
    android:layout_width="fill_parent" 
    android:layout_height="wrap_content" 
    android:layout_below="@+id/button1" > 

<RelativeLayout 
    android:layout_width="match_parent" 
    android:layout_height="match_parent" 
    android:orientation="vertical" 
    android:layout_below="@+id/scrollView1" 
    android:layout_alignParentLeft="true" 
    android:layout_alignParentStart="true"> 

     <TextView 
      android:id="@+id/textView2" 
      android:layout_width="wrap_content" 
      android:layout_height="wrap_content" 
      android:layout_alignParentLeft="true" 
      android:layout_marginTop="5dp" 
      android:text="@string/textView2" 
      android:layout_toLeftOf="@id/favourites" 
      android:textColor="#000000" 
      android:textAppearance="?android:attr/textAppearanceLarge" 
      android:textStyle="bold" /> 

     <TextView 
      android:id="@+id/tvName" 
      android:layout_width="wrap_content" 
      android:layout_height="wrap_content" 
      android:text="@string/tvName" 
      android:textColor="#000000" 
      android:textAppearance="?android:attr/textAppearanceMedium" 
      android:textStyle="italic" 
      android:layout_below="@+id/textView2" 
      android:layout_alignParentLeft="true" 
      android:layout_alignParentStart="true" /> 

     <CheckBox 
      android:layout_width="wrap_content" 
      android:layout_height="wrap_content" 
      android:id="@+id/checkBox" 
      android:button="@drawable/favourite" 
      android:checked="false" 
      android:layout_alignTop="@+id/textView2" 
      android:layout_alignParentRight="true" 
      android:layout_alignParentEnd="true" 
      android:layout_marginRight="46dp" 
      android:layout_marginEnd="46dp" 
      android:clickable="true" /> 

     <TextView 
      android:id="@+id/tvTD" 
      android:layout_width="wrap_content" 
      android:layout_height="wrap_content" 
      android:text="@string/tvTD" 
      android:textColor="#000000" 
      android:textAppearance="?android:attr/textAppearanceLarge" 
      android:textStyle="bold" 
      android:layout_below="@+id/checkBox" 
      android:layout_alignParentLeft="true" 
      android:layout_alignParentStart="true" /> 

     <TextView 
      android:id="@+id/tvIngredients" 
      android:layout_width="wrap_content" 
      android:layout_height="wrap_content" 
      android:layout_alignParentLeft="true" 
      android:layout_below="@+id/tvTD" 
      android:layout_marginTop="2dp" 
      android:text="@string/tvIngredients" 
      android:textColor="#000000" 
      android:textAppearance="?android:attr/textAppearanceMedium" 
      android:textStyle="italic" /> 

     <TextView 
      android:id="@+id/tvK" 
      android:layout_width="wrap_content" 
      android:layout_height="wrap_content" 
      android:layout_alignParentLeft="true" 
      android:layout_below="@+id/tvIngredients" 
      android:layout_marginTop="5dp" 
      android:text="@string/tvK" 
      android:textColor="#000000" 
      android:textAppearance="?android:attr/textAppearanceLarge" 
      android:textStyle="bold" /> 

     <TextView 
      android:id="@+id/tvPreparation" 
      android:layout_width="fill_parent" 
      android:layout_height="wrap_content" 
      android:layout_alignParentLeft="true" 
      android:layout_below="@+id/tvK" 
      android:layout_marginTop="2dp" 
      android:text="@string/tvPreparation" 
      android:textColor="#000000" 
      android:textAppearance="?android:attr/textAppearanceMedium" 
      android:textStyle="italic" /> 


    </RelativeLayout> 
</ScrollView> 

</RelativeLayout> 

我用于收藏夹按钮复选框会是为什么敬酒不工作

的原因

也任何人都可以告诉我如何制作代码，以便一旦你点击最喜欢的按钮，它将保持点击，因为它不会留下cli提前

Answer 1

cked上

感谢我建议你改变你的OnClickListener与OnCheckedChangeListener。当用户选中/取消选中CheckBox的状态时，它将被调用。恕我直言，它是这个小部件更好的监听器。

Answer 2

尝试以下

if ((fav.isChecked()) { 
    Toast.makeText(Favourite_Toast.this, "Added to Favourites", Toast.LENGTH_LONG).show(); 
} 
else{ 
    Toast.makeText(Favourite_Toast.this, "Removed From Favourites", Toast.LENGTH_LONG).show(); 
} 

Answer 3

使用此代码MainActivity代码...这将解决你的问题：

public class MainActivity extends Activity { 

    private CheckBox chk; 

    @Override 
    protected void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.activity_main); 

     chk = (CheckBox) findViewById(R.id.checkBox1); 
     chk.setOnClickListener(checkboxClickListener); 

    } 

    View.OnClickListener checkboxClickListener = new View.OnClickListener() { 
     @Override 
     public void onClick(View view) { 
      boolean checked = ((CheckBox) view).isChecked(); 
      if (checked) { 
       Toast.makeText(MainActivity.this,"Added to favourite", Toast.LENGTH_LONG).show(); 
      } 
      else { 
       Toast.makeText(MainActivity.this,"Removed from favourite", Toast.LENGTH_LONG).show(); 
      } 
     } 
    }; 

}