我在设置自定义线性布局类的边距时遇到问题,我在GridLayout中多次使用它。 Gridlayout放在一个片段中。 这是fragment_grid.xml的代码:
<FrameLayout 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"
tools:context="app_a_tize.expressme.Fragment.GridFragment"
android:layout_gravity="center">
<GridLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@color/orange"
android:layout_margin="5dp"
android:id="@+id/gridlayout_grid"></GridLayout>
</FrameLayout>
这是GridFragment.java的代码:
public class GridFragment extends Fragment {
public GridFragment() {
// Required empty public constructor
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// Inflate the layout for this fragment
return inflater.inflate(R.layout.fragment_grid, container, false);
}
@Override
public void onStart() {
super.onStart();
GridLayout grid = (GridLayout) getView().findViewById(R.id.gridlayout_grid);
grid.setRowCount(3);
int tileHeight = (CategoryTileActivity.gridContentHeight -3 * 10) / 3;
int amountofColumns = (int) CategoryTileActivity.gridContentWidth / tileHeight;
grid.setColumnCount(amountofColumns);
grid.setMinimumWidth((amountofColumns * tileHeight) + (5 * 20 ));
for (int i = 0; i < 3 * amountofColumns; i++) {
//fill the grid with the custom LinearLayout:
grid.addView(new TileClass(getActivity(), tileHeight, tileHeight, "ToBeImplemented", "Button"));
}
}
}
这是自定义LinearLayout的代码:
public class TileClass extends LinearLayout {
public TileClass(Context context, int height, int width, String image, String text) {
super(context);
this.setBackgroundResource(R.drawable.tile_button); //creates rounded layouts
this.setMinimumHeight(height);
this.setMinimumWidth(width);
this.setOrientation(LinearLayout.VERTICAL);
ImageView tileImage = new ImageView(context);
Bitmap bMap = BitmapFactory.decodeResource(getResources(), R.drawable.tilephoto);
Bitmap bMapScaled = Bitmap.createScaledBitmap(bMap, 100, 100, true);
tileImage.setImageBitmap(bMapScaled);
tileImage.setLayoutParams(new LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT));
TextView tileText = new TextView(context);
tileText.setText(text);
tileText.setTextColor(Color.WHITE);
tileText.setGravity(Gravity.CENTER);
addView(tileImage);
addView(tileText);
}
}
我上面展示的代码负责中间的橙色区域。
我需要的是:蓝色&#34;按钮&#34; / LinearLayouts,在中间的橙色区域,有5dp的余量。所以橙色空间的其余部分由自定义LinearLayouts拍摄。
我不知道如何解决这个问题,我尝试了很多选择,但它们似乎不适合我......从MarginLayoutParams到params.setMargins(5,5,5, 5);在我的代码中的几乎每个布局上。
我使用Android Studio 2.1.2,支持最低限度的API 15.
答案 0 :(得分:2)
您必须按如下方式制作gridview项目的自定义视图: -
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="@dimen/categoryHeight"
android:layout_marginLeft="@dimen/margin_5dp"
android:layout_marginRight="@dimen/margin_5dp"
android:layout_marginTop="@dimen/margin_7dp"
android:background="@drawable/rounded_bg"
>
<ImageView
android:id="@+id/llRowItem"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:scaleType="fitXY"
android:gravity="bottom"/>
<TextView
android:id="@+id/item_name"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="@color/black_light"
android:padding="@dimen/margin_5dp"
android:layout_gravity="bottom"
android:singleLine="true"
android:textColor="@color/white"
android:textSize="@dimen/font_size_16sp" />
</FrameLayout>
和内部适配器设置了imageview的文本视图,背景,文本或图像的颜色。