将视图dynamic添加到GridLayout时,alignment方式不正确

当通过XML添加button – 一切都好

通过XML添加按钮时

<GridLayout android:id="@+id/social_gl_content" android:layout_width="match_parent" android:layout_height="match_parent" android:layout_centerHorizontal="true" android:alignmentMode="alignBounds" android:columnCount="2" android:padding="8dp"> <LinearLayout android:layout_width="0dp" android:layout_height="45dp" android:layout_columnWeight="1"> <Button android:layout_width="fill_parent" android:layout_height="45dp" android:background="@android:color/holo_blue_light" android:text="Hi"/> </LinearLayout> <LinearLayout android:layout_width="0dp" android:layout_height="45dp" android:layout_columnWeight="1"> <Button android:layout_width="fill_parent" android:layout_height="45dp" android:background="@android:color/holo_green_light" android:text="Whatsapp"/> </LinearLayout> <LinearLayout android:layout_width="0dp" android:layout_height="45dp" android:layout_columnWeight="1"> <Button android:layout_width="match_parent" android:layout_height="45dp" android:background="@android:color/holo_green_light" android:text="This is facebook" /> </LinearLayout> <LinearLayout android:layout_width="0dp" android:layout_height="45dp" android:layout_columnWeight="1"> <Button android:layout_width="match_parent" android:layout_height="45dp" android:background="@android:color/holo_blue_light" android:text="On" /> </LinearLayout> </GridLayout> 

当dynamic添加button(通过代码) – 缺lessalignment,不占用列的完整宽度的button

 GridLayout gl = (GridLayout) findViewById(R.id.social_gl_content); LayoutInflater inflater = (LayoutInflater) getSystemService(LAYOUT_INFLATER_SERVICE); for (int i = 0 ; i < strs.length ; i++) { View v = inflater.inflate(R.layout.grid_item, null); Button b = (Button) v.findViewById(R.id.button); b.setText(strs[i]); if ( i % 2 ==0) { b.setBackgroundColor(Color.BLACK); }else{ b.setBackgroundColor(Color.BLUE); } gl.addView(v); } 

在这里输入图像说明

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而不是传递null:

View v = inflater.inflate(R.layout.grid_item, null);

传递父视图,以便v具有正确的布局参数。

View v = inflater.inflate(R.layout.grid_item, gl, false);

尝试这个 :

 LinearLayout.LayoutParams parms = new LinearLayout.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.WRAP_CONTENT); b.setLayoutParams(parms);