Custom ViewGroup with ScrollView not coexist?

posts by jbas edited 2013-08-22 23:39:10

Android viewGroup scrollView

I customized a ViewGroup, for processing in a row if there are multiple rows of less than Button, the wrap, if I do not put ScrollView is to run, but sometimes change the number of trekking too much, I want to put ScrollView do scroll down, but after I put ScrollView, will not show ViewGroup components, and seek solutions, thank you!

 package com.android.picker; 

import java.util.List; 

import android.content.Context; 
import android.util.AttributeSet; 
import android.util.Log; 
import android.view.View; 
import android.view.ViewGroup; 
import android.widget.Button; 

public class MyViewGroup extends ViewGroup {
private final static String TAG = "MyViewGroup"; 

public final static int VIEW_MARGIN = 2; 
private final static int MAX_TAG_LINES = 3; 
private Button lastMoreButton; 
public int totalHeight = 0; 

public MyViewGroup (Context context) {
super (context); 
Log.i (TAG, "myViewgroup"); 
} 

public void fullTags (Context context, List  rs, Button button) {
for (String s: rs) {
Button v = new Button (context); 
v.setText (s); 
this.addView (v); 
}; 
if (button! = null) {
this.addView (button); 
this.lastMoreButton = button; 
} 
} 

public void fullTags (Context context, List  rs) {
this.fullTags (context, rs, null); 
} 

public MyViewGroup (Context context, AttributeSet attributeSet) {
super (context, attributeSet); 
Log.i (TAG, "myViewgroupattributeSet"); 

} 

@ Override 
protected void onMeasure (int widthMeasureSpec, int heightMeasureSpec) {
Log.d (TAG, "widthMeasureSpec =" + widthMeasureSpec + "heightMeasureSpec" + heightMeasureSpec); 

for (int index = 0; index final View child = getChildAt (index); 
/ / Measure 
child.measure (MeasureSpec.UNSPECIFIED, MeasureSpec.UNSPECIFIED); 
totalHeight + = child.getMeasuredHeight (); 
} 

super.onMeasure (widthMeasureSpec, heightMeasureSpec); 
} 

@ Override 
protected void onLayout (boolean arg0, int l, int t, int r, int b) {
Log.d (TAG, "changed =" + arg0 + "left =" + l + "top =" + t + "right =" + r + "botom =" + b); 
final int count = getChildCount (); 
int row = 0 ;/ / which row lay you view relative to parent 
int lengthX = l; / / right position of child relative to parent 
int lengthY = t; / / bottom position of child relative to parent 
for (int i = 0; i final View child = this.getChildAt (i); 
Log.i ("aa", ((Button) child) getText () toString ()..); 
int width = child.getMeasuredWidth (); 
int height = child.getMeasuredHeight (); 
lengthX + = width + VIEW_MARGIN; 
/ / If it can't drawing on a same line, skip to next line 
if (lengthX> r) {
lengthX = width + VIEW_MARGIN + l; 
row + +; 
} 
lengthY = row * (height + VIEW_MARGIN) + VIEW_MARGIN + height + t; 

child.layout (lengthX-width, lengthY-height, lengthX, lengthY); 
} 
} 

} 

  
android: layout_width = "fill_parent" 
android: layout_height = "fill_parent" 
android: orientation = "vertical"> 



android: id = "@ + id / myalltags_scrollview" 
android: layout_width = "fill_parent" 
android: layout_height = "fill_parent" 
android: scrollbars = "vertical"> 
android: layout_width = "fill_parent" 
android: layout_height = "fill_parent"> 
 
 

 

 package com.android.picker; 

import java.util.ArrayList; 
import java.util.List; 

import android.app.Dialog; 
import android.content.Context; 
import android.util.Log; 
import android.view.ViewGroup; 

public class MyTagsDialog extends Dialog {
private Context context; 
private MyViewGroup myAllTagsView; 

public MyTagsDialog (Context context) {
super (context); 
this.context = context; 
this.setContentView (R.layout.mytagslayout); 
initView (); 
initData (); 
} 

private void initData () {
List  rs = new ArrayList  (); 
rs.add ("base fee"); 
rs.add ("group of people to a person"); 
rs.add ("Lord have on relaxation"); 
rs.add ("Where a person put up by"); 
rs.add ("multi knew Xie"); 
rs.add ("I was a now"); 
rs.add ("Test 1"); 
rs.add ("Test 2"); 
rs.add ("Test 3"); 
rs.add ("Test 4"); 
rs.add ("Test 5"); 
rs.add ("Test 6"); 
myAllTagsView.fullTags (context, rs); 
/ / MyViewGroupPackage mypackages = new MyViewGroupPackage (); 
/ / Mypackages.hasmore = true; 
/ / Mypackages.imems = rs; 
/ / MyAllTagsView.fullTags (context, rs); 
/ / ViewGroup.LayoutParams params = myAllTagsView.getLayoutParams (); 
/ / Params.height = myAllTagsView.totalHeight + 100; 
/ / Log.i ("cccc", "" + params.height); 
/ / MyAllTagsView.setLayoutParams (params); 

/ / UIHelper.setListViewHeightBasedOnChildren (trip_act_tripotherlistview, user_info_scrollview); 

} 

private void initView () {
myAllTagsView = (MyViewGroup) this.findViewById (R.id.myalltags); 

} 


} 

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Reply:
Li unknown sleep ah.
But ScrollView inside view layout_height you should not wrap_content
Reply:
lz resolved yet? Can say how to do next
Reply:
Solved yet, seeking answers