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    ▪从相册或者相机获得uri转为bit地图        从相册或者相机获得uri转为bitmap package com.amani.main;import java.io.ByteArrayOutputStream;import java.io.InputStream;import android.app.Activity;import android.app.AlertDialog;import android.content.ContentResolver;import android.cont.........
    ▪ BIG5转UTF-八与UTF-8转BIG5        BIG5转UTF-8与UTF-8转BIG5 自定义BIG5转UTF-8 public String big52unicode(String strBIG5) { String strReturn=""; try { strReturn = new String(strBIG5.getBytes("big5"), "UTF-8"); } catch (Exception e) { .........
    ▪ 第三章:任务管理器在运行的程序       第三章:任务管理器正在运行的程序 效果:mian.xnl <?xml version="1.0" encoding="utf-8"?> <AbsoluteLayout android:id="@+id/widget0" android:layout_width="fill_parent" android:layout_height="fill_parent" xmlns:android="http://s.........

[1]从相册或者相机获得uri转为bit地图
    来源: 互联网  发布时间: 2014-02-18
从相册或者相机获得uri转为bitmap
package com.amani.main;

import java.io.ByteArrayOutputStream;
import java.io.InputStream;
import android.app.Activity;
import android.app.AlertDialog;
import android.content.ContentResolver;
import android.content.DialogInterface;
import android.content.Intent;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.net.Uri;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.ImageView;

public class chooser extends Activity {

        private ImageView imageView;
        private OnClickListener imgViewListener;
        Bitmap myBitmap;
        private byte[] mContent;
      
        @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        imageView = (ImageView) findViewById(R.id.ivPic);
       
        imgViewListener = new OnClickListener() {
                        public void onClick(View v) {
                                final CharSequence[] items = { "相册", "拍照" };
                                AlertDialog dlg = new AlertDialog.Builder(chooser.this).setTitle("选择图片").setItems(items,
                                new DialogInterface.OnClickListener() {
                                public void onClick(DialogInterface dialog,int item) {
                                        //这里item是根据选择的方式，        在items数组里面定义了两种方式，拍照的下标为1所以就调用拍照方法      
                                        if(item==1){
                                                                Intent getImageByCamera= new Intent("android.media.action.IMAGE_CAPTURE");  
                                                                startActivityForResult(getImageByCamera, 1);  
                                                        }else{
                                                                Intent getImage = new Intent(Intent.ACTION_GET_CONTENT);
                                                        getImage.addCategory(Intent.CATEGORY_OPENABLE);
                                                        getImage.setType("image/jpeg");
                                                        startActivityForResult(getImage, 0);
                                                        }
                                                }
                                        }).create();
                                dlg.show();
                        }
                };
                //给imageView控件绑定点点击监听器
                imageView.setOnClickListener(imgViewListener);
              
    }
      
        @Override
        protected void onActivityResult(int requestCode, int resultCode, Intent data) {
       
        ContentResolver resolver = getContentResolver();
        /**
         * 因为两种方式都用到了startActivityForResult方法，这个方法执行完后都会执行onActivityResult方法，
         * 所以为了区别到底选择了那个方式获取图片要进行判断，这里的requestCode跟startActivityForResult里面第二个参数对应
         */
        if (requestCode == 0) {
            try {
                //获得图片的uri
                Uri originalUri = data.getData();
                //将图片内容解析成字节数组
                mContent=readStream(resolver.openInputStream(Uri.parse(originalUri.toString())));
                //将字节数组转换为ImageView可调用的Bitmap对象
                myBitmap = getPicFromBytes(mContent, null);
                ////把得到的图片绑定在控件上显示
                imageView.setImageBitmap(myBitmap);
            } catch (Exception e) {
                System.out.println(e.getMessage());
            }

        }else if(requestCode ==1){
                try {
                        super.onActivityResult(requestCode, resultCode, data);
                            Bundle extras = data.getExtras();
                            myBitmap = (Bitmap) extras.get("data");
                            ByteArrayOutputStream baos = new ByteArrayOutputStream();    
                            myBitmap.compress(Bitmap.CompressFormat.JPEG , 100, baos);    
                                mContent=baos.toByteArray();
                        } catch (Exception e) {
                                // TODO Auto-generated catch block
                                e.printStackTrace();
                        }
                        //把得到的图片绑定在控件上显示
                        imageView.setImageBitmap(myBitmap);
        }

    }

    public static Bitmap getPicFromBytes(byte[] bytes, BitmapFactory.Options opts) {
        if (bytes != null)
            if (opts != null)
                return BitmapFactory.decodeByteArray(bytes, 0, bytes.length,opts);
            else
                return BitmapFactory.decodeByteArray(bytes, 0, bytes.length);
        return null;
    }
  
    public static byte[] readStream(InputStream inStream) throws Exception {
        byte[] buffer = new byte[1024];
        int len = -1;
        ByteArrayOutputStream outStream = new ByteArrayOutputStream();
        while ((len = inStream.read(buffer)) != -1) {
                 outStream.write(buffer, 0, len);
        }
        byte[] data = outStream.toByteArray();
        outStream.close();
        inStream.close();
        return data;

   }
}

    
[2] BIG5转UTF-八与UTF-8转BIG5
    来源: 互联网  发布时间: 2014-02-18
BIG5转UTF-8与UTF-8转BIG5

自定义BIG5转UTF-8 

public String big52unicode(String strBIG5) 
  { 
    String strReturn=""; 
    try 
    { 
      strReturn = new String(strBIG5.getBytes("big5"), "UTF-8"); 
    } 
    catch (Exception e) 
    { 
      e.printStackTrace(); 
    } 
    return strReturn; 
  }

  自定义UTF-8转BIG5

public String unicode2big5(String strUTF8) 
  { 
    String strReturn=""; 
    try 
    { 
      strReturn = new String(strUTF8.getBytes("UTF-8"), "big5"); 
    } 
    catch (Exception e) 
    { 
      e.printStackTrace(); 
    } 
    return strReturn; 
  } 
}
 

    
[3] 第三章:任务管理器在运行的程序
    来源: 互联网  发布时间: 2014-02-18
第三章:任务管理器正在运行的程序
效果:







mian.xnl
<?xml version="1.0" encoding="utf-8"?>
<AbsoluteLayout
android:id="@+id/widget0"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
xmlns:android="http://schemas.android.com/apk/res/android"
>
<Button
android:id="@+id/button"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="&#21462;&#24471;&#31995;&#32479;&#27491;&#22312;&#36816;&#34892;&#30340;&#31243;&#24207;"
android:layout_x="78px"
android:layout_y="370px"
>
</Button>
<TextView
android:id="@+id/texts"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="&#21462;&#24471;&#31995;&#32479;&#27491;&#22312;&#36816;&#34892;&#30340;&#31243;&#24207;"
android:layout_x="11px"
android:layout_y="10px"
>
</TextView>
<ListView
android:id="@+id/show"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_x="11px"
android:layout_y="37px"
>
</ListView>
</AbsoluteLayout>



simple_list_item.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
android:id="@+id/widget0"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
xmlns:android="http://schemas.android.com/apk/res/android"
>
<TextView
android:id="@+id/text"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
>
</TextView>
</LinearLayout>


AndroidManifest.xml

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
      package="runing.task.info.test"
      android:versionCode="1"
      android:versionName="1.0">
    <application android:icon="@drawable/icon" android:label="@string/app_name">
        <activity android:name=".RuningTaskInfoTest"
                  android:label="@string/app_name">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />
                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>

    </application>

<uses-permission android:name="android.permission.GET_TASKS"></uses-permission>
</manifest>


strings.xml

<?xml version="1.0" encoding="utf-8"?>
<resources>
    <string name="hello">Hello World, RuningTaskInfoTest!</string>
    <string name="app_name">RuningTaskInfoTest</string>
    <string name="nulls">没有任务运行！</string>
    <string name="permission">没有权限！</string>
</resources>












package runing.task.info.test;

import java.util.ArrayList;
import java.util.List;

import android.app.Activity;
import android.app.ActivityManager;
import android.os.Bundle;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.ListView;
import android.widget.Toast;

public class RuningTaskInfoTest extends Activity {
	private Button mButton1;
	private ListView mListView01;
	private ArrayAdapter<String> aryAdapter1;
	private ArrayList<String> arylistTask;
	private int inGetTastCounter=30;
	private ActivityManager mActivityManager;
    
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        /** 载入main.xml*/
        setContentView(R.layout.main);
        /**通过id找到Button组件*/
        mButton1=(Button)findViewById(R.id.button);
        mListView01=(ListView)findViewById(R.id.show);
        /**设置按钮点击事件*/
        mButton1.setOnClickListener(new Button.OnClickListener(){
			@Override
			public void onClick(View v) {
				try{
					/** ActivityManager 对象向系统取得ACTIVITY_SERVICE*/
					mActivityManager=(ActivityManager)RuningTaskInfoTest.this.getSystemService(ACTIVITY_SERVICE);
					arylistTask=new ArrayList<String>();
					/** 以getRunningTasks方法取得任务名称与ID*/
					List<ActivityManager.RunningTaskInfo> mRunningTasks=mActivityManager.getRunningTasks(inGetTastCounter);
					int i=1;
					for(ActivityManager.RunningTaskInfo amTask:mRunningTasks){
						/** 将取得的任务名字添加到list集合里*/
						arylistTask.add(""+(i++)+":"+amTask.baseActivity.getClassName()+"(ID"+amTask.id+")");
					}
					
					aryAdapter1=new ArrayAdapter<String>(RuningTaskInfoTest.this,  R.layout.simple_list_item, R.id.text, arylistTask);
					if(aryAdapter1.getCount()==0){
						/**当没有任何任务运行,则提示细信息*/
						mMakeTextToast(getResources().getText(R.string.nulls).toString(),true);
					}else{
						/**将后台运行的信息以ListView条列呈现*/
						mListView01.setAdapter(aryAdapter1);
					}
				}catch (SecurityException e) {
					e.printStackTrace();
					/**当无GET_TASKS权限时提示信息*/
					mMakeTextToast(getResources().getText(R.string.permission).toString(),true);
				}
			}
        });
        /**当User在运行任务选择的事件处理*/
        mListView01.setOnItemSelectedListener(new ListView.OnItemSelectedListener(){
			@Override
			public void onItemSelected(AdapterView<?> arg0, View arg1,
					int arg2, long arg3) {
				/**由于将运行任务以数组的方式存放,以ID取出数组元素名*/
				mMakeTextToast(arylistTask.get(arg2).toString(),false);
			}

			@Override
			public void onNothingSelected(AdapterView<?> arg0) {
				// TODO Auto-generated method stub
				
			}
        });
        /**当User在运行任务单击的事件处理*/
        mListView01.setOnItemClickListener(new ListView.OnItemClickListener(){
			@Override
			public void onItemClick(AdapterView<?> arg0, View arg1, int arg2,
					long arg3) {
				/**由于将运行任务以数组的方式存放,以ID取出数组元素名*/
				mMakeTextToast(arylistTask.get(arg2).toString(),false);
			}
        	
        });
    }
    public void mMakeTextToast(String str,boolean isLong){
    	if(isLong==true){
    		Toast.makeText(RuningTaskInfoTest.this, str, Toast.LENGTH_LONG).show();
    	}else{
    		Toast.makeText(RuningTaskInfoTest.this, str, Toast.LENGTH_SHORT).show();
    	}
    }
}





    
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