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android ListView实现圆角实例教程二

2013-07-17 14:43 302 查看
Android框架浅析之锁屏(Keyguard)机制原理

http://www.eoeandroid.com/thread-181604-1-1.html

andriod一个不错的启动菜单显示屏动画效果(转载)

http://www.eoeandroid.com/thread-171965-1-1.html

分享一个短信应用源码

http://www.eoeandroid.com/thread-179723-1-1.html

对于简短的listview,加上如上面这些比较死的数据,我们完全没有必要用listview来实现,TableLout完全够了.主要是我们怎么实现带有弧度的边罢了,不过这也完全得力于shape的功劳,至于点击效果效果嘛,我们有selector,下面介绍下实现:

配置文件部分代码:

<ScrollView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:scrollbars="none" >
<LinearLayout
android:id="@+id/ll_main"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_weight="1"
android:gravity="center"
android:orientation="vertical"
android:paddingLeft="10dp"
android:paddingRight="10dp" >
</LinearLayout>
</ScrollView>


很简单,我们主要用这个Linerlayout来呈放我们的Table.

实现代码:

package com.jj.corner;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.Map;
import android.R.color;
import android.app.Activity;
import android.graphics.drawable.BitmapDrawable;
import android.graphics.drawable.Drawable;
import android.os.Bundle;
import android.view.Gravity;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.view.ViewGroup.LayoutParams;
import android.view.Window;
import android.widget.ArrayAdapter;
import android.widget.LinearLayout;
import android.widget.ListAdapter;
import android.widget.ListView;
import android.widget.RelativeLayout;
import android.widget.SimpleAdapter;
import android.widget.TableLayout;
import android.widget.TableRow;
import android.widget.TextView;
public class MainActivity2 extends Activity {
private LinearLayout ll_main;
private TableLayout tableLayout;
private LinearLayout.LayoutParams layoutParams;
private static final String MSG_0[] = { "jjhappyforever" };
private static final String MSG_1[] = { "天气动画", "通知栏天气" };
private static final String MSG_2[] = { "桌面插件", "绑定微博", "天气分享", "通知与提示",
"定时播报" };
private static final String MSG_3[] = { "检查新版本", "发送建议", "帮助", "关于" };
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE);
setContentView(R.layout.main2);
ll_main = (LinearLayout) findViewById(R.id.ll_main);
showTable();
}
/***
* 显示table
*/
public void showTable() {
layoutParams = new LinearLayout.LayoutParams(LayoutParams.WRAP_CONTENT,
LayoutParams.WRAP_CONTENT);
layoutParams.bottomMargin = 30;
layoutParams.topMargin = 10;
ll_main.addView(getTable(MSG_0), layoutParams);
ll_main.addView(getTable(MSG_1), layoutParams);
ll_main.addView(getTable(MSG_2), layoutParams);
ll_main.addView(getTable(MSG_3), layoutParams);
}
/***
* 获取Table
*
* @param array
* @return
*/
public TableLayout getTable(String[] array) {
tableLayout = new TableLayout(this);
tableLayout.setLayoutParams(layoutParams);
tableLayout.setStretchAllColumns(true);
for (int i = 0; i < array.length; i++) {
TableRow tableRow = new TableRow(this);
View view = getView(array[i], i, array.length);
tableRow.addView(view);
tableLayout.addView(tableRow);
}
return tableLayout;
}
/****
*
* @param msg
*            显示信息
* @param current_Id
*            当前个数
* @param totle_Num
*            总个数
* @return
*/
public View getView(String msg, int current_Id, int totle_Num) {
LinearLayout linearLayout = new LinearLayout(this);
LinearLayout.LayoutParams layoutParams1 = new LinearLayout.LayoutParams(
LayoutParams.MATCH_PARENT, LayoutParams.WRAP_CONTENT);
layoutParams1.height = 1;
linearLayout.setOrientation(1);
// 创建分割线
View line = new View(this);
line.setLayoutParams(layoutParams1);
line.setBackgroundColor(getResources().getColor(R.color.black));
View view = LayoutInflater.from(MainActivity2.this).inflate(
R.layout.item, null);
view.setBackgroundDrawable(new BitmapDrawable());
view.setFocusable(true);
view.setClickable(true);
TextView textView = (TextView) view.findViewById(R.id.tv_list_item);
textView.setText(msg);
textView.setTextSize(20);
// 只有一项
if (totle_Num == 1) {
view.setBackgroundResource(R.drawable.default_selector);
return view;
}
// 第一项
else if (current_Id == 0) {
view.setBackgroundResource(R.drawable.list_top_selector);
}
// 最后一项
else if (current_Id == totle_Num - 1) {
view.setBackgroundResource(R.drawable.list_bottom_selector);
line.setVisibility(View.GONE);
} else
view.setBackgroundResource(R.drawable.list_center_selector);
linearLayout.addView(view);
linearLayout.addView(line);
return linearLayout;
}
}


主要是getView有些复杂,不过都很好理解,相信大家都可以明白,只是没有动手做而已,小弟我只是想用这个练练手.

不过不要忘记我们的背景实现
这个是只有一项的背景,
default_selector.xml

<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:state_pressed="true"><shape>
<stroke android:width="1dp" android:color="@color/gray" />
<solid android:color="@color/gray" />
<corners android:radius="8dp" />
</shape></item>
<item><shape>
<stroke android:width="1dp" android:color="@color/gray" />
<solid android:color="@color/white" />
<corners android:radius="8dp" />
</shape></item>
</selector>


list_top_selector.xml

<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:state_pressed="true"><shape>
<stroke android:width="1dp" android:color="@color/gray" />
<solid android:color="@color/gray" />
<corners android:topLeftRadius="8dp" android:topRightRadius="8dp" />
</shape></item>
<item><shape>
<solid android:color="@color/white" />
<corners android:topLeftRadius="8dp" android:topRightRadius="8dp" />
</shape></item>
</selector>


list_bottom_selector.xml

<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:state_pressed="true"><shape>
<stroke android:width="1dp" android:color="@color/gray" />
<solid android:color="@color/gray" />
<corners android:bottomLeftRadius="8dp" android:bottomRightRadius="8dp" />
</shape></item>
<item><shape>
<solid android:color="@color/white" />
<corners android:bottomLeftRadius="8dp" android:bottomRightRadius="8dp" />
</shape></item>
</selector>


list_center_selector.xml

<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:state_pressed="true"><shape>
<stroke android:width="1dp" android:color="@color/gray" />
<solid android:color="@color/gray" />
</shape></item>
<item><shape>
<solid android:color="@color/white" />
</shape></item>
</selector>


主要就这么多了,下面我们来看下实现效果:





原文地址:http://www.eoeandroid.com/thread-198770-1-1.html
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