[英]Programmatically add child to GridLayout
I made a custom View , now i want to add it to a GridLayout in a programmatically way but i've no idea how to do that... 我做了一个自定义的View,现在我想以编程方式将其添加到GridLayout,但是我不知道该怎么做...
Activity : 活动内容:
public class FullScreenGame extends Activity{
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.full_screen_layout);
GridLayout grid = (GridLayout) findViewById(R.id.cell_grid);
grid.addView(new CustomCell(this));
}
}
i'm trying to do like that but nothing is displayed. 我正在尝试那样做,但什么也没显示。 Custom cell class:
自定义单元格类别:
public class CustomCell extends View{
private Paint shadowPaint , ovalColor;
private int ypad =0, xpad =0, height =150, width = 150;
//TODO calculate spacing properly
public CustomCell(Context context){
super(context);
}
public CustomCell(Context context, AttributeSet attrs) {
super(context, attrs);
TypedArray a = context.getTheme().obtainStyledAttributes(attrs,R.styleable.CustomCell,0,0);
ypad = a.getInteger(R.styleable.CustomCell_ypad,0);
xpad = a.getInteger(R.styleable.CustomCell_xpad,0);
init();
}
@Override
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
setMeasuredDimension(width+10,height+10);
}
private void init(){
shadowPaint = new Paint(Paint.ANTI_ALIAS_FLAG);
shadowPaint.setColor(Color.BLACK);
shadowPaint.setMaskFilter(new BlurMaskFilter(8, BlurMaskFilter.Blur.NORMAL));
ovalColor= new Paint(Paint.ANTI_ALIAS_FLAG);
ovalColor.setColor(Color.WHITE);
ovalColor.setMaskFilter(new BlurMaskFilter(8, BlurMaskFilter.Blur.NORMAL));
}
@Override
protected void onDraw(Canvas canvas) {
super.onDraw(canvas);
canvas.drawOval(xpad , ypad , height+5, width+5, shadowPaint);
canvas.drawOval(xpad+5 , ypad +5, height, width, ovalColor );
}
}
full_screen_layout.xml: full_screen_layout.xml:
<?xml version="1.0" encoding="utf-8"?>
<GridLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="horizontal" android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#1565c0"
android:rowCount="5"
android:columnCount="5"
android:id="@+id/cell_grid">
</GridLayout>
I'm trying to create a game board made with Custom cells , but i can't figure the easy / correct way to perform it , also how can i add view to a specific row and column , it could help a lot. 我正在尝试创建一个使用“自定义”单元格制作的游戏板,但是我无法确定简单/正确的执行方法,也无法将视图添加到特定的行和列,这可能会很有帮助。
Try this, 尝试这个,
GridLayout layout = (GridLayout) findViewById(R.id. cell_grid);
layout.setUseDefaultMargins(true);
layout.setAlignmentMode(ALIGN_BOUNDS);
layout.setRowOrderPreserved(false);
layout.setLayoutDirection(View.LAYOUT_DIRECTION_RTL);
layout.addView(childView, new GridLayout.LayoutParams(row, col));
// 'childView' can be any View object
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