需要在android的新窗口中将视图滚动到RelativeLayout
我有2个ListView,它们是自动滚动的。因此,当用户从这些列表视图中选择2项时 将打开一个新窗口(画布),但我希望该新窗口(画布)可滚动。因为画布的尺寸很大 需要帮助!提前谢谢 布局需要在android的新窗口中将视图滚动到RelativeLayout,android,android-listview,android-canvas,android-view,android-scrollbar,Android,Android Listview,Android Canvas,Android View,Android Scrollbar,我有2个ListView,它们是自动滚动的。因此,当用户从这些列表视图中选择2项时 将打开一个新窗口(画布),但我希望该新窗口(画布)可滚动。因为画布的尺寸很大 需要帮助!提前谢谢 布局 当我从列表视图中选择2个项目时,我希望(视图)可以在新窗口中滚动 活动源代码 package com.example.tester1; 导入java.io.BufferedReader; 导入java.io.IOException; 导入java.io.InputStreamReader; 导入java
- 当我从列表视图中选择2个项目时,我希望(视图)可以在新窗口中滚动李>
package com.example.tester1;
导入java.io.BufferedReader;
导入java.io.IOException;
导入java.io.InputStreamReader;
导入java.util.StringTokenizer;
导入android.os.Bundle;
导入android.app.Activity;
导入android.content.Context;
导入android.graphics.Canvas;
导入android.graphics.Color;
导入android.graphics.Paint;
导入android.view.Menu;
导入android.view.view;
导入android.widget.AdapterView;
导入android.widget.ArrayAdapter;
导入android.widget.ListView;
导入android.widget.TextView;
公共类MainActivity扩展了活动{
地图;
字符串Source=“Blank”;
字符串Destination=“Blank”;
列表视图列表1;
列表视图列表2;
字符串[]列表数组;
缓冲读取机场位置;
@凌驾
创建时受保护的void(Bundle savedInstanceState){
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
试一试{
AirportLocation=新的BufferedReader(
新的InputStreamReader(getAssets().open(“Airport-Location3.txt”);
}捕获(IOE异常){
e、 printStackTrace();
}
listArray=新字符串[1168];
字符串行1;
int c=0;//位置检测器
试一试{
而((line1=AirportLocation.readLine())!=null){
StringTokenizer s=新的StringTokenizer(第1行);
字符串airport=s.nextToken();
listArray[c]=机场;
C++;
}
}捕获(IOE异常){
e、 printStackTrace();
}
list1=(ListView)findViewById(R.id.list1);
list2=(ListView)findViewById(R.id.list2);
ArrayAdapter1=新的ArrayAdapter(这是android.R.layout.simple\u list\u item\u 1,listArray);
ArrayAdapter2=新的ArrayAdapter(这是android.R.layout.simple\u list\u item\u 1,listArray);
列表1.设置适配器(适配器1);
列表2.设置适配器(适配器2);
list1.setOnItemClickListener(新SourceSelection());
list2.setOnItemClickListener(newdestinationselection());
}
公众抽签(){
地图=新地图(本);
setContentView(地图);
}
类SourceSelection实现AdapterView.OnItemClickListener{
@凌驾
公共视图单击(AdapterView arg0、视图arg1、整型arg2、长型arg3){
TextView温度=(TextView)arg1;
Source=temp.getText()+“”;
如果(!Source.equals(“Blank”)&&!Destination.equals(“Blank”)){
Draw();
}
}
}
类DestinationSelection实现AdapterView.OnItemClickListener{
@凌驾
公共视图单击(AdapterView arg0、视图arg1、整型arg2、长型arg3){
TextView温度=(TextView)arg1;
Destination=temp.getText()+“”;
如果(!Source.equals(“Blank”)&&!Destination.equals(“Blank”)){
Draw();
}
}
}
@凌驾
公共布尔onCreateOptions菜单(菜单){
//为菜单充气;这会将项目添加到操作栏(如果存在)。
getMenuInflater().充气(R.menu.main,menu);
返回true;
}
公共类映射扩展了视图{
油漆=新油漆();
公共地图(上下文){
超级(上下文);
}
@凌驾
公共空白onDraw(画布){
油漆。设置颜色(颜色。红色);
画布.画圈(100,100,20,油漆);
帆布.抽绳(2000,2000,5000,5000,油漆);
}
@凌驾
测量时的保护空隙(内部宽度测量等级、内部高度测量等级){
//计算渲染视图所需的高度
//假设宽度始终与父项匹配。
int width=MeasureSpec.getSize(widthmasurespec);
int height=3000+50;//因为3000是要添加的最后一个矩形的底部,50用于填充。
设置测量尺寸(宽度、高度);
}
}
}
您可能希望将该视图放在滚动视图中。我只想使该视图可滚动。您能否帮助我编辑我的代码…根据您的要求,您可能需要一个自定义视图来显示地图全屏和滚动视图。这正是我想要的,但如何操作请帮助…)
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:paddingLeft="16dp"
android:paddingRight="16dp" >
<ListView
android:id="@+id/list1"
android:layout_width="60dp"
android:layout_height="fill_parent"
android:layout_alignParentLeft="true" />
<ListView
android:id="@+id/list2"
android:layout_width="60dp"
android:layout_height="fill_parent"
android:layout_alignParentRight="true" />
<View
android:id="@+id/mapView"
android:layout_width="60dp"
android:layout_height="fill_parent"/>
</RelativeLayout>
package com.example.tester1;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.StringTokenizer;
import android.os.Bundle;
import android.app.Activity;
import android.content.Context;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;
import android.view.Menu;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.ListView;
import android.widget.TextView;
public class MainActivity extends Activity {
Map map;
String Source = "Blank";
String Destination = "Blank";
ListView list1;
ListView list2;
String [] listArray;
BufferedReader AirportLocation;
@Override
protected void onCreate(Bundle savedInstanceState){
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
try {
AirportLocation = new BufferedReader(
new InputStreamReader(getAssets().open("Airport-Location3.txt")));
} catch (IOException e) {
e.printStackTrace();
}
listArray = new String[1168];
String line1;
int c = 0;// location detector
try {
while((line1 = AirportLocation.readLine())!=null){
StringTokenizer s = new StringTokenizer(line1);
String airport = s.nextToken();
listArray[c] = airport;
c++;
}
} catch (IOException e) {
e.printStackTrace();
}
list1 = (ListView) findViewById(R.id.list1);
list2 = (ListView) findViewById(R.id.list2);
ArrayAdapter<String> adapter1 = new ArrayAdapter<String>(this,android.R.layout.simple_list_item_1,listArray);
ArrayAdapter<String> adapter2 = new ArrayAdapter<String>(this,android.R.layout.simple_list_item_1,listArray);
list1.setAdapter(adapter1);
list2.setAdapter(adapter2);
list1.setOnItemClickListener(new SourceSelection());
list2.setOnItemClickListener(new DestinationSelection());
}
public void Draw(){
map = new Map(this);
setContentView(map);
}
class SourceSelection implements AdapterView.OnItemClickListener{
@Override
public void onItemClick(AdapterView<?> arg0, View arg1, int arg2, long arg3) {
TextView temp = (TextView) arg1;
Source = temp.getText()+"";
if(!Source.equals("Blank") && !Destination.equals("Blank")){
Draw();
}
}
}
class DestinationSelection implements AdapterView.OnItemClickListener{
@Override
public void onItemClick(AdapterView<?> arg0, View arg1, int arg2, long arg3) {
TextView temp = (TextView) arg1;
Destination = temp.getText()+"";
if(!Source.equals("Blank") && !Destination.equals("Blank")){
Draw();
}
}
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
public class Map extends View {
Paint paint = new Paint();
public Map(Context context) {
super(context);
}
@Override
public void onDraw(Canvas canvas) {
paint.setColor(Color.RED);
canvas.drawCircle(100, 100, 20, paint);
canvas.drawLine(2000, 2000, 5000, 5000, paint);
}
@Override
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
// Compute the height required to render the view
// Assume Width will always be MATCH_PARENT.
int width = MeasureSpec.getSize(widthMeasureSpec);
int height = 3000 + 50; // Since 3000 is bottom of last Rect to be drawn added and 50 for padding.
setMeasuredDimension(width, height);
}
}
}