import android.content.Context;import android.util.AttributeSet;import android.view.View;import android.view.View.MeasureSpec;import android.view.ViewGroup;public class MyGropView extends ViewGroup{    private final static int VIEW_MARGIN=15;     public MyGropView(Context context, AttributeSet attrs){         super(context, attrs);     }     public MyGropView(Context context) {         super(context);     }     @Override     protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {        int stages = 1;        int stageHeight = 0;        int stageWidth = 0;        int wholeWidth = MeasureSpec.getSize(widthMeasureSpec);        for (int i = 0; i < getChildCount(); i++) {            final View child = getChildAt(i);            // measure            measureChild(child, widthMeasureSpec, heightMeasureSpec);            stageWidth += (child.getMeasuredWidth() + VIEW_MARGIN);            stageHeight = child.getMeasuredHeight();            if (stageWidth >= wholeWidth) {                stages++;                //reset stageWidth                stageWidth = child.getMeasuredWidth();            }        }        int wholeHeight = (stageHeight + VIEW_MARGIN) * stages;        // report this final dimension        setMeasuredDimension(resolveSize(wholeWidth, widthMeasureSpec),                resolveSize(wholeHeight, heightMeasureSpec));     }     private int jiange = 10;//按钮之间的间隔     @Override     protected void onLayout(boolean arg0, int arg1, int arg2, int arg3, int arg4) {        final int count = getChildCount();         int row=0;// which row lay you view relative to parent         int lengthX=arg1 ;    // right position of child relative to parent         int lengthY=arg2;    // bottom position of child relative to parent         for(int i=0;i<count;i++){             final View child = this.getChildAt(i);             int width = child.getMeasuredWidth();             int height = child.getMeasuredHeight();             if(i == 0){                 lengthX+=width+VIEW_MARGIN;//第一个的时候不需要加             }else{                 lengthX+=width+VIEW_MARGIN +jiange;//按钮之间的间隔             }             lengthY=row*(height+VIEW_MARGIN)+VIEW_MARGIN+height+arg2;             //if it can't drawing on a same line , skip to next line             if(lengthX>arg3){                 lengthX=width+VIEW_MARGIN+arg1;                 row++;                 lengthY=row*(height+VIEW_MARGIN)+VIEW_MARGIN+height+arg2;             }             child.layout(lengthX-width, lengthY-height, lengthX, lengthY);         }     }}

然后将此控件加入布局中，在主函数中动态添加控件。

public class MainActivity extends AppCompatActivity {    private MyGropView myGroupView;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        myGroupView = ((MyGropView) findViewById(R.id.myGroupView));        for (int i=0;i<30;i++){            Button b=new Button(this);            b.setText("测试"+i);        myGroupView.addView(b);        }    }}

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