我想有一个2x2网格内的按钮。这只是ICS，所以我试图使用新的GridLayout给定。
这是我的布局的XML:
<?xml version="1.0" encoding="utf-8"?>
<GridLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/favorites_grid"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#00ff00"
android:rowCount="2"
android:columnCount="2">
<Button
android:text="Cell 0"
android:layout_row="0"
android:layout_column="0"
android:textSize="14dip" />
<Button
android:text="Cell 1"
android:layout_row="0"
android:layout_column="1"
android:textSize="14dip" />
<Button
android:text="Cell 2"
android:layout_row="1"
android:layout_column="0"
android:textSize="14dip" />
<Button
android:text="Cell 3"
android:layout_row="1"
android:layout_column="1"
android:textSize="14dip" />
</GridLayout>
问题是我的视图没有为每一行均匀地拉伸。这导致GridLayout的右侧有很多额外的空间。
我尝试设置layout_gravity="fill_horizontal"，但这只适用于该行的最后一个视图。这意味着单元格1会一直延伸，为单元格0提供足够的空间。
如何解决这个问题?
给你:
Button button = new Button(this);
// weight = 1f , gravity = GridLayout.FILL
GridLayout.LayoutParams param= new GridLayout.LayoutParams(GridLayout.spec(
GridLayout.UNDEFINED,GridLayout.FILL,1f),
GridLayout.spec(GridLayout.UNDEFINED,GridLayout.FILL,1f));
// Layout_height = 0 ,Layout_weight = 0
params.height =0;
params.width = 0;
button.setLayoutParams(param);
main。xml
<GridLayout
android:id="@+id/grid_related_news"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="8dp"
android:padding="3dp"
android:columnCount="2">
</GridLayout>
。
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout android:layout_width="0dp"
android:layout_height="wrap_content"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_columnWeight="1"
android:gravity="center"
android:padding="3dp"
android:layout_gravity="fill_horizontal"
xmlns:android="http://schemas.android.com/apk/res/android">
<androidx.cardview.widget.CardView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="@color/white"
app:cardBackgroundColor="@color/white"
app:cardCornerRadius="5dp"
app:cardElevation="2dp"
android:layout_margin="4dp">
<androidx.constraintlayout.widget.ConstraintLayout
android:layout_width="match_parent"
android:layout_height="wrap_content">
<ImageView
android:id="@+id/img_related_news"
android:layout_width="0dp"
android:layout_height="0dp"
android:layoutDirection="rtl"
android:scaleType="centerCrop"
app:layout_constraintDimensionRatio="H,1:1"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:srcCompat="@drawable/light_gray" />
<LinearLayout
android:layout_width="0dp"
android:layout_height="0dp"
android:background="#59000000"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<TextView
android:id="@+id/txt_related_news_title"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_marginStart="12dp"
android:layout_marginTop="6dp"
android:layout_marginEnd="12dp"
android:layout_marginBottom="12dp"
android:elevation="2dp"
android:fontFamily="@font/yekan_bold"
android:letterSpacing="-0.1"
android:lineSpacingExtra="4dp"
android:maxLines="4"
android:textColor="@color/white"
android:textSize="13sp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
tools:text="@string/lorem_ipsum_sentence" />
</androidx.constraintlayout.widget.ConstraintLayout>
</androidx.cardview.widget.CardView>
</LinearLayout>
java
GridLayout grid_related_news = findViewById(R.id.grid_related_news);
View view = LayoutInflater.from(this).inflate(R.layout.related_item, (ViewGroup) grid_related_news, false);
ImageView img_related_news = view.findViewById(R.id.img_related_news);
...
grid_related_news.addView(view);
你可以用这个例子
