[英]How to implement click listener for a button in android Page Viewer?
我想在android中创建一个简单的页面控件。...我想从一个页面移动到另一个页面,水平滚动,就像android设备中的主屏幕一样。
我在xml中有多个布局,例如main.xml
, layout_first.xml
, layout_second.xml
和layout_third.xml
现在,我的layout_first.xml
有一个简单的按钮,我想为该按钮实现点击监听器
button.setOnClickListener(new OnClickListener()
{
public void onClick(View v)
{
}
});
不,我不知道将上面的代码放在哪里
这是我的main.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent">
<TextView
android:id="@+id/textView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Main Layout"
android:textAppearance="?android:attr/textAppearanceLarge" />
<android.support.v4.view.ViewPager
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="@+id/myfivepanelpager"/>
</LinearLayout>
这是我的layout_first.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >
<TextView
android:id="@+id/myTextView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="First Layout"
android:textAppearance="?android:attr/textAppearanceLarge" />
<Button
android:id="@+id/button"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Button" />
</LinearLayout>
这是我的layout_second.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >
<TextView
android:id="@+id/myTextView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Second Layout"
android:textAppearance="?android:attr/textAppearanceLarge" />
</LinearLayout>
这是我的layout_third.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >
<TextView
android:id="@+id/myTextView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Third Layout"
android:textAppearance="?android:attr/textAppearanceLarge" />
</LinearLayout>
这是我的java代码
public class MainActivity extends Activity
{
@Override
protected void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
MyPagerAdapter adapter = new MyPagerAdapter();
ViewPager myPager = (ViewPager) findViewById(R.id.myfivepanelpager);
myPager.setAdapter(adapter);
myPager.setCurrentItem(0);
}
@Override
public boolean onCreateOptionsMenu(Menu menu)
{
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
private class MyPagerAdapter extends PagerAdapter
{
@Override
public int getCount()
{
// TODO Auto-generated method stub
return 3;
}
public Object instantiateItem(View collection, int position)
{
LayoutInflater inflater = (LayoutInflater) collection.getContext().getSystemService(Context.LAYOUT_INFLATER_SERVICE);
int resId = 0;
switch (position)
{
case 0:
resId = R.layout.layout_first;
break;
case 1:
resId = R.layout.layout_second;
break;
case 2:
resId = R.layout.layout_third;
break;
}
View view = inflater.inflate(resId, null);
((ViewPager) collection).addView(view, 0);
return view;
}
@Override
public void destroyItem(View arg0, int arg1, Object arg2) {
((ViewPager) arg0).removeView((View) arg2);
}
@Override
public boolean isViewFromObject(View arg0, Object arg1) {
return arg0 == ((View) arg1);
}
@Override
public Parcelable saveState() {
return null;
}
}
}
在View view = inflater.inflate(resId, null);
之后View view = inflater.inflate(resId, null);
添加以下内容:
if(position == 0){
view.findViewById(R.id.button).setOnClickListener(new OnClickListener() {
public void onClick(View v){
}
});
}
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