来源: 互联网  发布时间: 2014-02-18

Activity另一完整跳转例子(上一Activity关闭当前Activity)
该例子用意:
Activity1 --> Activity2
然后用Activity1关闭当前Activity2.

MycadillacActivity.java

package com.cn;

import com.util.ProgressActivity;

import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;

public class MycadillacActivity extends Activity {
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        Button btn1 = (Button)findViewById(R.id.login);
        btn1.setOnClickListener(new OnClickListener() {
			public void onClick(View v) {
				Intent intent1 = new Intent(MycadillacActivity.this,ProgressActivity.class);
				MycadillacActivity.this.startActivityForResult(intent1, 10);
				new Thread(new MycadillacActivity.Test()).start();
			}
		});
    }
	@Override
	protected void onActivityResult(int requestCode, int resultCode, Intent data) {
		//String name = data.getExtras().get("name").toString();
		System.out.println("requestCode:"+requestCode+"  resultCode:"+resultCode);
		super.onActivityResult(requestCode, resultCode, data);
	}
	
	class Test implements Runnable{
		public void run() {
			try {
				System.out.println("1111");
				Thread.sleep(5000);
				System.out.println("2222");
				MycadillacActivity.this.finishActivity(10);
			} catch (InterruptedException e) {
				e.printStackTrace();
			}
		}
	}
}

ProgressActivity.java

package com.util;

import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;

import com.cn.R;

public class ProgressActivity extends Activity {

	@Override
	protected void onCreate(Bundle savedInstanceState) {
		setContentView(R.layout.progress);
		super.onCreate(savedInstanceState);
		Button btn1 = (Button)findViewById(R.id.button1);
		btn1.setOnClickListener(new OnClickListener() {
			
			public void onClick(View v) {
				Intent i = new Intent();
				i.putExtra("name", "11");
				ProgressActivity.this.setResult(5, i);
				ProgressActivity.this.finish();
			}
		});
	}
}

AndroidManifest.xml

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
      package="com.cn"
      android:versionCode="1"
      android:versionName="1.0">
    <uses-sdk android:minSdkVersion="8" />

    <application android:icon="@drawable/icon" android:label="@string/app_name">
        <activity android:name=".MycadillacActivity"
                  android:label="@string/app_name">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />
                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
		<activity android:name="com.util.ProgressActivity"  android:theme="@android:style/Theme.Dialog"></activity>
    </application>
</manifest>

    

    来源: 互联网  发布时间: 2014-02-18

ubuntu10.4在更新的时候报动态 MMap 没有空间了的问题解决
今天在apt-get update更新ubuntu源的时候报错了

archermind@rdcdz10410:/etc/apt$ sudo apt-get install wine
正在读取软件包列表... 有错误！
E: 动态 MMap 没有空间了。请增大 APT::Cache-Limit 的大小。当前值：25165824。(man 5 apt.conf)
E: 处理 xconq-common (NewFileVer1)时出错
E: Problem with MergeList /var/lib/apt/lists/mirror.switch.ch_ftp_ubuntu_dists_natty_universe_binary-i386_Packages
W: Unable to munmap
E: 无法解析或打开软件包的列表或是状态文件。


：

编辑 sudo gedit /etc/apt/apt.conf或者/etc/apt/apt.conf.d/70debconf
在里面增加或者修改以下参数，把后面的数字尽量的调大即可，如果调大后重复出现该问题，继续增加数字即可

APT::Cache-Limit 16777216;

    

    来源: 互联网  发布时间: 2014-02-18

布局专题三：表格布局

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

/**
 * 表格布局
 * @author Administrator
 *
 */
public class Layout3 extends Activity {

	@Override
	protected void onCreate(Bundle savedInstanceState) {
		// TODO Auto-generated method stub
		super.onCreate(savedInstanceState);
		this.setContentView(R.layout.layout3);
		//this.setContentView(R.layout.layout4);
		//this.setContentView(R.layout.layout5);
	}

	
	
}

 

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    >
	<TableLayout
		android:layout_width="wrap_content"
		android:layout_height="wrap_content"
	>
		<TableRow>
			<TextView
				android:layout_width="wrap_content"
				android:layout_height="wrap_content"
				android:text="用户名 ："
			></TextView>
			<EditText
				android:layout_width="50px"
				android:layout_height="50px"
			></EditText>
		</TableRow>
		<TableRow>
			<TextView
				android:layout_width="wrap_content"
				android:layout_height="wrap_content"
				android:text="用户密码："
			></TextView>
			<EditText
				android:layout_width="50px"
				android:layout_height="50px"
				android:password="true"
			></EditText>
		</TableRow>
	</TableLayout>
</LinearLayout>

 

效果：