手动签字apk 和 zipalign优化 - OC中的NSString的其余用法 - 自定义listview，带旋钮，多选框，处理item事件

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▪手动签字apk 和 zipalign优化手动签名apk 和 zipalign优化手动签名命令：命令行输入 jarsigner -verbose -keystore release.keystore -storepass yourkeysotrepassword -keypass yourkeypassword -signedjar yoursignedapkname apkyouwanttosign yourkeyname 例如： j.........

▪ OC中的NSString的其余用法 OC中的NSString的其他用法 NSLog(@"大写：%@", [str uppercaseString]); NSLog(@"小写: %@", [str lowercaseString]); NSLog(@"首字母大写, 其他字母变小写", [@"aGe", capitalizedString]); BOOL result = [@"abc" isEqualToString:@"Abc"];.........

▪ 自定义listview，带旋钮，多选框，处理item事件自定义listview，带按钮，多选框，处理item事件产品中要用到这个效果：listitem中带多选框，用来删除；有按钮，处理相应事件；item的click处理跳转。同事说这个设计操作起来很二，有点反社会.........

[1]手动签字apk 和 zipalign优化

来源: 互联网发布时间: 2014-02-18

手动签名apk 和 zipalign优化

手动签名命令：

命令行输入 jarsigner -verbose -keystore release.keystore -storepass yourkeysotrepassword -keypass yourkeypassword -signedjar yoursignedapkname apkyouwanttosign yourkeyname

例如：

jarsigner -verbose -keystore release.keystore -storepass 123456 -keypass 123456 -signedjar signed.apk unsigned.apk mykey1

优化apk命令：

zipalign -v 4 source.apk androidres.apk

附上bat：

1、使用之前将，发布keystore 放到bat同级目录，将sdk\tools下的zipalign.exe复制到bat同级目（压缩包里附上了我自己的，应该所有人的都是一样的）

2、修改bat中 release.keystore为自己的keystore名，keystorepassword 换成keystore的密码，keypassword 换成key密码，keyname 换成key的别名。

然后用eclipse导出unsigned apk ，然后将apk拖到bat上即可。

[2] OC中的NSString的其余用法

来源: 互联网发布时间: 2014-02-18

OC中的NSString的其他用法

NSLog(@"大写：%@", [str uppercaseString]);
NSLog(@"小写:  %@", [str lowercaseString]);
NSLog(@"首字母大写, 其他字母变小写", [@"aGe", capitalizedString]);

BOOL result = [@"abc" isEqualToString:@"Abc"]; //返回0, 即为false

//比较字符串大小. compare会返回3个值中的其中一个
//1. NSOrderedSame  右边的字符串比左边大
//2. NSOrderedAscending  两个字符串的内容相同
//3. NSOrderedDescending  左边的字符串比右边的大
NSComparisonResult result2 = [@"abc" compare:@"Abc"];
if (result2 == NSOrderedSame){
  NSLog(@"两个字符串内容相同");
}else if (result2 == NSOrderedAscending){
  NSLog(@"右边 > 左边");
}else if (result2 == NSOrderedDescending){
  NSLog(@"右边 < 左边");
}

//字符串搜索
NSString *str = @"12345.txt";
//是否以12开头
NSLog(@"是否12开头：%i", [str hasPrefix:@12]); //返回1，即true
NSLog(@"是否txt结尾：%i", [str hasSuffix:@"txt"]); //返回1，即true

//查找是否包含345字符串, 如果没找到，返回的location=NSNotFound
//一旦找到字符串就返回，不理会后续是否还有相同的字符串
NSRange range = [str rangeOfString:@"345"];
NSLog(@"%@", NSStringFromRange(range));
if(range.location == NSNotFound){
  NSLog(@"不能找到");
}

NSRange range = [str rangeOfString:@"345" options: NSBackwardSearch];

//字符串的截取, 从第4位开始截取字符串
NSLog(@"%@", [str substringFromIndex: 3]);
NSLog(@"%@", [str substringToIndex: 3]);
//截取字符串中间范围, 截取从第3位开始，取3个字符
NSRange range = NSMakeRange(3, 3);
NSLog(@"%@", [str substringWithRange: range]);

//切割字符串，java中的split
NSString *str = @"1,2,3,4,5,6,7";
NSArray *array = [str componentsSeparedByString:@","];
NSLog(@"%@", array);

//拿到array第0个位置的字符串， array: [1,2,3,4,5,6,7]
NSString *str3 = [array objectAtIndex:0]; //输出1

//文件路径拼接方法
NSMutableArray *components = [NSMutableArray array];
[components addObject: @"User"];
[components addObject: @"MJ"];
[components addObject: @"Desktop"];
NSString *path = [NSString pathWithComponents:components];
NSLog(@"%@", path);  //输出User/MJ/Desktop

//切割成数组
NSArray *cmps = [path pathComponents];
NSLog(@"%@", cmps);

//判断是否是绝对路径
NSString path = @"users/mj/test";
NSLog(@"%i", [path isAbsolutePath]); //输出0，为false

//最后一个目录输出
NSLog(@"%@", [path lastPathComponent]);

//删除最后一个目录
NSLog(@"%@", [path stringByDeletingLastPathComponent]);

//再最后拼接一个目录
NSLog(@"%@", [path stringByAppendingPathComponent:@"abc"]); //输出 users/mj/test/abc

//拓展名处理， 获取拓展名
NSString *str = @"/user/desktop/test.text"; 
NSLog(@"%@", [str pathExtension]); //输出text

//删除拓展名方法： stringByDeletingPathExtension
//拼接拓展名方法： stringByAppendingPathExtension

//强转类型
NSString *val = @"1";
int valint = [val intValue];

//计算数字，不是字符数
NString *value = @"我是字符串";
NSLog("%@", [value length]); //输出5

//取得字符串其中某个字符
NSLog("%@", [value characterAtIndex: 0]); //输出 "我"

//转成C语言中的字符串
char *s = [@"abc" UTF8String];

[3] 自定义listview，带旋钮，多选框，处理item事件

来源: 互联网发布时间: 2014-02-18

自定义listview，带按钮，多选框，处理item事件

产品中要用到这个效果：listitem中带多选框，用来删除；有按钮，处理相应事件；item的click处理跳转。同事说这个设计操作起来很二，有点反社会，再加个图片和可以展开就反人类了。不管怎样，产品说了，我们就得做。

思路：item上有控件，就不能使item失去焦点，因此，各种button，checkbox就不能去获取焦点，但是可以click。其实主要就这些，其他也没多少东西。

1、首先贴个效果图，全选/取消全选，删除，item的单击，checkbox的单击，button的单击：

2、代码部分：

MainActivity.java

package com.ttdevs.lcb;

import java.util.LinkedList;

import android.app.Activity;
import android.content.Intent;
import android.os.AsyncTask;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.CheckBox;
import android.widget.ListView;
import android.widget.TextView;
import android.widget.Toast;

import com.handmark.pulltorefresh.library.PullToRefreshBase;
import com.handmark.pulltorefresh.library.PullToRefreshBase.Mode;
import com.handmark.pulltorefresh.library.PullToRefreshBase.OnRefreshListener2;
import com.handmark.pulltorefresh.library.PullToRefreshListView;
import com.ttdevs.lcb.CustomAdapter.ViewHolder;

public class MainActivity extends Activity implements OnClickListener, OnItemClickListener,
		OnRefreshListener2<ListView> {

	private LinkedList<ItemInfo> list;
	private CustomAdapter adapter;

	private PullToRefreshListView mPullRefreshListView;
	private ListView actualListView;
	
	private CheckBox cbSelectAll ;

	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_main);

		cbSelectAll = (CheckBox) findViewById(R.id.cbSelectAll);
		
		
		mPullRefreshListView = (PullToRefreshListView) findViewById(R.id.pull_refresh_list);
		mPullRefreshListView.setMode(Mode.BOTH);
		mPullRefreshListView.setOnRefreshListener(this);
		
		actualListView = mPullRefreshListView.getRefreshableView();
		// Need to use the Actual ListView when registering for Context Menu
		registerForContextMenu(actualListView);

		list = new LinkedList<ItemInfo>();
		adapter = new CustomAdapter(getApplicationContext(), list);
		
		initData(list);
		
		actualListView.setAdapter(adapter);
		actualListView.setOnItemClickListener(this);
	}

	private void initData(LinkedList<ItemInfo> list) {
		for (int i = 0; i <= 20; i++) {
			ItemInfo info = new ItemInfo();
			info.setId(i);
			info.setContent("这是第 " + i + " 条记录");
			list.add(info);
			adapter.getSelect().add(false);
			info = null;
		}
	}

	@Override
	public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
		ViewHolder holder = adapter.new ViewHolder();
		holder.tvItemID = (TextView) view.findViewById(R.id.tvItemID);
		holder.tvContent = (TextView) view.findViewById(R.id.tvContent);
		// holder.cbSelect = (CheckBox) view.findViewById(R.id.cbSelect);
		// holder.btClick = (Button) view.findViewById(R.id.btClick);

		ItemInfo itemInfo = list.get(position);
		itemInfo.setId(Integer.parseInt(holder.tvItemID.getText().toString()));
		itemInfo.setContent(holder.tvContent.getText().toString());

		Intent intent = new Intent(this, InfoActivity.class);
		intent.putExtra("itemInfo", itemInfo);
		startActivity(intent);

	}

	@Override
	public void onClick(View view) {
		switch (view.getId()) {
		case R.id.btDelete:
			for (int i = 0; i < adapter.getSelect().size(); ) {
				System.out.println(i+"|" + adapter.getSelect().get(i));
				if(adapter.getSelect().get(i)){
					adapter.getSelect().remove(i);
					list.remove(i);
				} else {
					i++;
				}
			}
			adapter.notifyDataSetChanged();
			cbSelectAll.setChecked(false);
			break;
		case R.id.cbSelectAll:
			boolean flag = cbSelectAll.isChecked();
			for (int i = 0; i < adapter.getSelect().size(); i++) {
				adapter.getSelect().set(i, flag);
			}
			adapter.notifyDataSetChanged();
			break;

		default:
			break;
		}
		
	}
	
	@Override
	public void onPullDownToRefresh(PullToRefreshBase<ListView> refreshView) {
		Toast.makeText(getApplicationContext(), "下拉刷新", Toast.LENGTH_LONG).show();
		new GetLastTask().execute();
	}

	@Override
	public void onPullUpToRefresh(PullToRefreshBase<ListView> refreshView) {
		Toast.makeText(getApplicationContext(), "上拉获取更多", Toast.LENGTH_LONG).show();
		new GetFirstTask().execute();
	}

	private class GetFirstTask extends AsyncTask<Void, Void, ItemInfo> {

		@Override
		protected ItemInfo doInBackground(Void... params) {
			try {
				Thread.sleep(1000);
			} catch (InterruptedException e) {
				e.printStackTrace();
			}
			ItemInfo info = new ItemInfo();
			info.setId((int) (System.currentTimeMillis() % 1000000));
			info.setContent("last:" + String.valueOf(System.currentTimeMillis()));
			return info;
		}

		@Override
		protected void onPostExecute(ItemInfo result) {
			list.addLast(result);
			adapter.getSelect().addLast(false);
			adapter.notifyDataSetChanged();
			// TODO 二选一？
			mPullRefreshListView.onRefreshComplete();

			super.onPostExecute(result);
		}
	}

	private class GetLastTask extends AsyncTask<Void, Void, ItemInfo> {

		@Override
		protected ItemInfo doInBackground(Void... params) {
			try {
				Thread.sleep(1000);
			} catch (InterruptedException e) {
				e.printStackTrace();
			}
			ItemInfo info = new ItemInfo();
			info.setId((int) (System.currentTimeMillis() % 1000000));
			info.setContent("last:" + String.valueOf(System.currentTimeMillis()));
			return info;
		}

		@Override
		protected void onPostExecute(ItemInfo result) {
			list.addFirst(result);
			adapter.getSelect().addFirst(false);
			adapter.notifyDataSetChanged();

			mPullRefreshListView.onRefreshComplete();

			super.onPostExecute(result);
		}
	}
}

CustomAdapter.java，这个是自定义的adapter，实现主要的逻辑：

package com.ttdevs.lcb;

import java.util.LinkedList;

import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.Button;
import android.widget.CheckBox;
import android.widget.TextView;
import android.widget.Toast;

public class CustomAdapter extends BaseAdapter {

	private final LinkedList<Boolean> selected = new LinkedList<Boolean>();

	private Context context;
	private LayoutInflater inflater;
	private LinkedList<ItemInfo> list;

	public CustomAdapter(Context context, LinkedList<ItemInfo> list) {
		this.context = context;
		this.inflater = LayoutInflater.from(context);
		this.list = list;
	}

	public LinkedList<Boolean> getSelect() {
		return selected;
	}

	@Override
	public View getView(final int position, View convertView, ViewGroup parent) {
		ViewHolder holder = null;
		if (convertView == null) {
			convertView = inflater.inflate(R.layout.listview_item, null);

			holder = new ViewHolder();
			holder.cbSelect = (CheckBox) convertView.findViewById(R.id.cbSelect);
			holder.tvContent = (TextView) convertView.findViewById(R.id.tvContent);
			holder.tvItemID = (TextView) convertView.findViewById(R.id.tvItemID);
			holder.btClick = (Button) convertView.findViewById(R.id.btClick);
			convertView.setTag(holder);
		} else {
			holder = (ViewHolder) convertView.getTag();
		}

		final ItemInfo itemInfo = list.get(position);
		holder.tvItemID.setText(String.valueOf(itemInfo.getId()));
		holder.tvContent.setText(itemInfo.getContent());

		holder.cbSelect.setChecked(selected.get(position));
		holder.cbSelect.setOnClickListener(new OnClickListener() {

			@Override
			public void onClick(View v) {
				System.out.println("selected set position:" + position);
				selected.set(position, !selected.get(position));// 将CheckBox的选中状况记录下来
				for (int i = 0; i < selected.size(); i++) {
					System.out.println("selected " + i + ":" + selected.get(i));
				}

				// notifyDataSetChanged();
			}
		});
		holder.btClick.setOnClickListener(new OnClickListener() {

			@Override
			public void onClick(View v) {
				String value = String.valueOf(position) + "|" + itemInfo.getId() + "|" + itemInfo.getContent();
				Toast.makeText(context, value, Toast.LENGTH_SHORT).show();
			}
		});

		return convertView;
	}

	@Override
	public int getCount() {
		return list.size();
	}

	@Override
	public Object getItem(int position) {
		return list.get(position);
	}

	@Override
	public long getItemId(int position) {
		return position;
	}
	
	public class ViewHolder {
		public CheckBox cbSelect;
		public TextView tvContent;
		public TextView tvItemID;
		public Button btClick;
	}
}

ItemInfo.java，一个传递数据的实体类：

package com.ttdevs.lcb;

import java.io.Serializable;

public class ItemInfo implements Serializable {

	private static final long serialVersionUID = 6287420905418813028L;
	
	private int id;
	private String content;

	public int getId() {
		return id;
	}

	public void setId(int id) {
		this.id = id;
	}

	public String getContent() {
		return content;
	}

	public void setContent(String content) {
		this.content = content;
	}
}

跳转结果页，看自己的业务了：

package com.ttdevs.lcb;

import android.app.Activity;
import android.os.Bundle;

public class InfoActivity extends Activity {

	private ItemInfo info;

	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_info);

		// intent.putExtra("itemInfo", itemInfo);
		info = (ItemInfo) getIntent().getExtras().get("itemInfo");
		
		System.out.println(info.getId() + "||" + info.getContent());
	}
}

布局文件：

activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent" >

    <LinearLayout
        android:id="@+id/llSelectAll"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_alignParentTop="true"
        android:orientation="vertical" >

        <RelativeLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_margin="10dp"
            android:orientation="horizontal" >

            <CheckBox
                android:id="@+id/cbSelectAll"
                android:layout_width="28dp"
                android:layout_height="28dp"
                android:onClick="onClick"
                android:layout_alignParentLeft="true"
                android:layout_centerVertical="true" />

            <TextView
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_centerVertical="true"
                android:layout_marginLeft="8dp"
                android:layout_toRightOf="@+id/cbSelectAll"
                android:text="全选" />

            <Button
                android:id="@+id/btDelete"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_alignParentRight="true"
                android:layout_centerVertical="true"
                android:onClick="onClick"
                android:text="delete" />
        </RelativeLayout>

        <ImageView
            android:layout_width="match_parent"
            android:layout_height="2dp"
            android:background="@android:color/holo_blue_dark" />
    </LinearLayout>

    <com.handmark.pulltorefresh.library.PullToRefreshListView
        android:id="@+id/pull_refresh_list"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_below="@+id/llSelectAll"
        android:cacheColorHint="#00000000"
        android:divider="#19000000"
        android:dividerHeight="4dp"
        android:fadingEdge="none"
        android:fastScrollEnabled="false"
        android:footerDividersEnabled="false"
        android:headerDividersEnabled="false"
        android:smoothScrollbar="true" />

</RelativeLayout>

listview的item，注意两个属性：clickable和focusable

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:minHeight="30dip"
    android:paddingLeft="6dp"
    android:paddingRight="6dp"
    android:paddingTop="4dp" >

    <CheckBox
        android:id="@+id/cbSelect"
        android:layout_width="wrap_content"
        android:layout_height="match_parent"
        android:layout_alignParentLeft="true"
        android:layout_centerVertical="true"
        android:clickable="true"
        android:focusable="false" />

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_centerVertical="true"
        android:layout_marginLeft="10dp"
        android:layout_marginRight="10dp"
        android:layout_toLeftOf="@+id/btClick"
        android:layout_toRightOf="@+id/cbSelect"
        android:orientation="vertical" >

        <TextView
            android:id="@+id/tvContent"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:textColor="@android:color/black"
            android:text="content" />

        <TextView
            android:id="@+id/tvItemID"
            android:textColor="@android:color/black"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:text="id" />
    </LinearLayout>

    <Button
        android:id="@+id/btClick"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentRight="true"
        android:layout_centerVertical="true"
        android:clickable="true"
        android:focusable="false"
        android:text="click" />

</RelativeLayout>

3、这里用到了一个下拉刷新的第三方库 com.handmark.pulltorefresh.library，这个在github上有的：

Demo：下载

Pulltorefresh：csdn下载，github下载

先导入pulltorefresh library，然后再运行demo

4、有很多改进的地方，欢迎吐槽