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如何刪除綠色LinearLayout中點的頂部和底部邊距？刪除動態Textviews中的頂部和底部邊距Android
我與setMargins試圖0，但它不工作
這是我的Java類和我的XML的
MainActivity.java
public class MainActivity extends Activity {
private ViewPager viewPager;
private MyViewPagerAdapter myViewPagerAdapter;
private ArrayList<Integer> listOfItems;
private LinearLayout dotsLayout;
private int dotsCount;
private TextView[] dots;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
initViews();
setViewPagerItemsWithAdapter();
setUiPageViewController();
}
private void setUiPageViewController() {
dotsLayout = (LinearLayout)findViewById(R.id.viewPagerCountDots);
dotsCount = myViewPagerAdapter.getCount();
dots = new TextView[dotsCount];
LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);
params.gravity = Gravity.CENTER_VERTICAL;
params.setMargins(2, 0, 1, 0);
for (int i = 0; i < dotsCount; i++) {
dots[i] = new TextView(this);
dots[i].setText(Html.fromHtml("•"));
dots[i].setTextSize(30);
dots[i].setTextColor(getResources().getColor(R.color.blanco));
dots[i].setLayoutParams(params);
dotsLayout.addView(dots[i]);
}
dots[0].setTextColor(getResources().getColor(R.color.negro));
}
private void setViewPagerItemsWithAdapter() {
myViewPagerAdapter = new MyViewPagerAdapter(listOfItems);
viewPager.setAdapter(myViewPagerAdapter);
viewPager.setCurrentItem(0);
viewPager.setOnPageChangeListener(viewPagerPageChangeListener);
}
// page change listener
OnPageChangeListener viewPagerPageChangeListener = new OnPageChangeListener() {
@Override
public void onPageSelected(int position) {
for (int i = 0; i < dotsCount; i++) {
dots[i].setTextColor(getResources().getColor(R.color.blanco));
}
dots[position].setTextColor(getResources().getColor(R.color.negro));
}
@Override
public void onPageScrolled(int arg0, float arg1, int arg2) {
}
@Override
public void onPageScrollStateChanged(int arg0) {
}
};
private void initViews() {
viewPager = (ViewPager)findViewById(R.id.viewPager);
listOfItems = new ArrayList<Integer>();
listOfItems.add(1);
listOfItems.add(2);
listOfItems.add(3);
listOfItems.add(4);
listOfItems.add(5);
}
// adapter
public class MyViewPagerAdapter extends PagerAdapter{
private LayoutInflater layoutInflater;
private ArrayList<Integer> items;
public MyViewPagerAdapter(ArrayList<Integer> listOfItems) {
this.items = listOfItems;
}
@Override
public Object instantiateItem(ViewGroup container, int position) {
layoutInflater = (LayoutInflater) getApplicationContext().getSystemService(Context.LAYOUT_INFLATER_SERVICE);
View view = layoutInflater.inflate(R.layout.view_pager_item, container,false);
TextView tView = (TextView)view.findViewById(R.id.PageNumber);
tView.setText(listOfItems.get(position).toString());
((ViewPager) container).addView(view);
return view;
}
@Override
public int getCount() {
return items.size();
}
@Override
public boolean isViewFromObject(View view, Object obj) {
return view == ((View)obj);
}
@Override
public void destroyItem(ViewGroup container, int position, Object object) {
View view = (View)object;
((ViewPager) container).removeView(view);
}
}
}
activity_main .xml
<RelativeLayout 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.support.v4.view.ViewPager
android:id="@+id/viewPager"
android:layout_width="match_parent"
android:layout_height="100dp" >
</android.support.v4.view.ViewPager>
<RelativeLayout
android:id="@+id/viewPagerIndicator"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_below="@+id/viewPager"
android:background="@color/app_green" >
<LinearLayout
android:id="@+id/viewPagerCountDots"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerInParent="true"
android:orientation="horizontal" >
</LinearLayout>
</RelativeLayout>
</RelativeLayout>
view_pager_item.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="match_parent"
android:layout_height="wrap_content"
android:background="#FF0000" >
<TextView
android:id="@+id/PageNumber"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:layout_centerVertical="true"
android:gravity="center"
android:textColor="@android:color/white"
android:textSize="50sp" />
</RelativeLayout>
設置的LinearLayout – 2015-02-23 10:38:29
的重力@kamran它不是爲我工作 – user4152 2015-02-23 10:41:03
@DerGolem你能請寫你的代碼？ – user4152 2015-02-23 11:02:24