Android Layout file Experience

1. When a parent control contains multiple child controls, it often follows the principle that the eldest son takes precedence, that is, if the eldest son is likely to occupy the father's space, the second son is out;

2. Assuming that the Tablelayout has 2 rows, one row does not set the inter-column length ratio, and the other row is set, the non-set row may also follow the set row length ratio between columns;

3. In an area, such as a cell in tablelayout, to display a large picture, you want the picture to always be adaptive to the cell instead of exploding the cell. Solution: Place the cell in LinearLayout, set the Android:layout_width= "Wrap_content", android:orientation= "horizontal" to LinearLayout, Set the Layout_weight property for the cell, and do not set the Android:layout_width property.

<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:backg round= "#ffffff" > <tablelayout android:layout_width= "fill_parent" android:layout_height= "Wrap_conten        T "android:layout_below=" @+id/include1 "android:background=" #dedcd2 "android:stretchcolumns=" * "> <tablerow android:layout_margin= "0.5dip" android:background= "#dedcd2" > <                LinearLayout android:layout_width= "wrap_content" android:layout_height= "30DP"                    android:orientation= "Horizontal" > <textview android:layout_height= "fill_parent" Android:layout_margin= "1dip" android:layout_weight= "2" Android:ba Ckground= "#ffffff" Android: text= "" android:textsize= "12DP" android:textstyle= "bold"/> <t                    Extview android:layout_height= "fill_parent" android:layout_margin= "1dip"                    android:layout_weight= "2" android:background= "#ffffff" android:text= "" Android:textsize= "12DP" android:textstyle= "bold"/> &lt ;!                    --@drawable/right for Super big picture--<imageview android:layout_height= "Fill_parent" Android:layout_margin= "1dip" android:layout_weight= "1" android:src= "@dr                    Awable/right "/> <textview android:layout_height=" Fill_parent "                    Android:layout_margin= "1dip" android:layout_weight= "2" android:background= "#ffffff" android:text= "" android:textsize= "12DP" android:textstyle= "bold"/> </ Linearlayout> </TableRow> </TableLayout></RelativeLayout>