当使用膨胀布局按钮单击事件不工作 [英] Button click event is not working when inflated layout is used

问题描述

请谁能帮助我，因为我是新到Android我不能够得到解决 - 如果我使用膨胀布局按钮OnClick事件是行不通的。这里是我的usemerge.xml code，

 ＆LT;的RelativeLayout的xmlns：机器人=htt​​p://schemas.android.com/apk/res/android
机器人：layout_width =match_parent
机器人：layout_height =match_parent
机器人：背景=＃2996ff＆GT;
＆LT;的LinearLayout
    机器人：ID =@ + ID / I1
    机器人：layout_width =match_parent
    机器人：layout_height =WRAP_CONTENT
    机器人：方向=横向
   ＆GT;
    ＆LT; / LinearLayout中＆GT;
  ＆LT; / RelativeLayout的＆GT;
 

toplayout.xml

 ＆LT;的LinearLayout
   的xmlns：机器人=htt​​p://schemas.android.com/apk/res/android
    机器人：ID =@ + ID / linear1
    机器人：layout_width =match_parent
    机器人：layout_height =WRAP_CONTENT
    机器人：方向=横向
    ＆GT;     ＆LT;按钮
        机器人：ID =@ + ID / butt1
        机器人：layout_width =130dp
        机器人：layout_height =WRAP_CONTENT
        机器人：layout_marginLeft =24dp
        机器人：layout_marginStart =20dp
        机器人：layout_marginTop =24dp
        机器人：背景=@绘制/ myButton的
        机器人：文字=@字符串/时间表/＆GT;
 ＆LT; / LinearLayout中＆GT;
 

MainActivity.java

 私人的LinearLayout林1;
  私人按钮BT1;
   保护无效的onCreate（捆绑savedInstanceState）{
      // TODO自动生成方法存根
    super.onCreate（savedInstanceState）;
    的setContentView（R.layout.usemerge）;     最后LayoutInflater气筒=
    （LayoutInflater）getSystemService（Context.LAYOUT_INFLATER_SERVICE）;
      林1 =（的LinearLayout）findViewById（R.id.i1）;
        查看VI = inflater.inflate（R.layout.toplayout，林1，假）;        lin1.addView（六）;
        BT1 =（按钮）vi.findViewById（R.id.butt1）;        bt1.setOnClickListener（新View.OnClickListener（）{            @覆盖
            公共无效的onClick（查看VO）{
                // TODO自动生成方法存根                意图AIN =新意图（getBaseContext（），ScheduleActivity.class）;
                startActivity（AIN）;
            }
        }）;
 

解决方案

请注意，您的setContentView（R.layout.usemerge）; 开头，之后你做你的充气和按钮绑定到膨胀认为，这意味着你没有看到膨胀的布局反正（，美在屏幕上看到的按钮是不是 BT1从膨胀的观点）。

膨胀的观点后;

您应该做的的setContentView（VI）。

Please can anyone help me, since i am new to android i am not able to get solution for - the button OnClick event is not working if i use the inflated layout. Here is my usemerge.xml code,

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#2996ff" >
<LinearLayout
    android:id="@+id/i1" 
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:orientation="horizontal"
   >
    </LinearLayout>
  </RelativeLayout>

toplayout.xml

   <LinearLayout 
   xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/linear1"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:orientation="horizontal"
    >

     <Button
        android:id="@+id/butt1"
        android:layout_width="130dp"
        android:layout_height="wrap_content"
        android:layout_marginLeft="24dp"
        android:layout_marginStart="20dp"
        android:layout_marginTop="24dp"
        android:background="@drawable/mybutton" 
        android:text="@string/schedule" />
 </LinearLayout>

MainActivity.java

 private  LinearLayout lin1; 
  private Button bt1;
   protected void onCreate(Bundle savedInstanceState) {
      // TODO Auto-generated method stub
    super.onCreate(savedInstanceState);
    setContentView(R.layout.usemerge);

     final LayoutInflater  inflater =       
    (LayoutInflater)getSystemService(Context.LAYOUT_INFLATER_SERVICE);
      lin1 = (LinearLayout)findViewById(R.id.i1);
        View vi=inflater.inflate(R.layout.toplayout,lin1,false);

        lin1.addView(vi);
        bt1=(Button)vi.findViewById(R.id.butt1);

        bt1.setOnClickListener(new View.OnClickListener() {

            @Override
            public void onClick(View vo) {
                // TODO Auto-generated method stub

                Intent ain=new Intent(getBaseContext(), ScheduleActivity.class);
                startActivity(ain); 
            }
        });

解决方案

Notice that you do setContentView(R.layout.usemerge); at the beginning, and after that you do your inflate and bind the button to the inflated view, this mean that you don't see the inflated layout anyway (the button that u see on the screen isn't bt1 from inflated view).

You should do setContentView(vi); after inflating the view.

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