relativelayout

How do I make a website responsive? [closed]

由 和自甴很熟 提交于 2019-11-26 23:12:40
I want to know how to make a website, and all of its elements responsive to adapt to different screen sizes: fonts, images etc... Do I have to do somethings like this: @media only screen and (max-width : 320px) { //here put the width and height of all the elements in the site } and make it for each screen size? Is there an easier way? Adaptive layouts (Responsive layouts) consists of the following three factors: 1. Flexible Layouts: The divs you use to create your web page layouts need to consist of relative length units. This means you shouldn't use fixed widths in your CSS, rather use

Setting parameters on child views of a RelativeLayout

由 北城余情 提交于 2019-11-26 18:31:14
问题 I'm having trouble finding exactly the syntax I need to use to set the paramters on child views of a relative layout. I have a root relative layout that I want to set 2 child textviews next to each other like this ---------- --------- | Second | | First | ---------- --------- So I have public class RL extends RelativeLayout{ public RL(context){ TextView first = new TextView(this); TextView second = new TextView(this); first.setText('First'); first.setId(1); second.setText('Second'); second

Listview error: “Your content must have a ListView whose id attribute is 'android.R.id.list'”

由 戏子无情 提交于 2019-11-26 14:46:48
问题 I am getting an error in my logcat saying "Your content must have a ListView whose id attribute is 'android.R.id.list'". My code compiles and runs but force closes when I start my listview activity. I've checked on many similar questions, it seems to be a common problem but I am still unable to fix my code. The Declaration: private ListView lv; Context mContext; List mList; String[] testcontacts; MessageView aa = null; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate

Moving from one activity to another Activity in Android

由 我的未来我决定 提交于 2019-11-26 10:36:31
问题 I want to move from one activity to another (using virtual device). When I click on button to move, My emulator ones a dialog box showing unfortunately SMS1 has stopped working (SMS1 is my app name). Can anybody help me in correcting my code? MainActivity.java: package com.example.sms1; import android.os.Bundle; import android.app.Activity; import android.content.Intent; import android.view.Menu; import android.view.View; import android.view.View.OnClickListener; import android.widget.Button;
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