Android學習0827(Toast、AlertDialog )

添加蒙版

在選擇好的圖片上添加蒙版使其與其他未選擇的圖片不一樣，在Relativelayout中，位於後添加的控件會把先前的控件給覆蓋，可以利用Relativelayout佈局添加。但在RelativeLayout佈局中，高寬使用matchParent時不會將其充滿，所以就讓蒙版的大小與要覆蓋的控件的右下邊對齊即可。

android:visibility=”invisible”用來表示是否顯示，visible（顯示），invisible（不顯示，但佔有空間），gone（不顯示，也不佔空間）。

就以Grid中的數據信息爲例，需要將activity_gridview_adapter.xml中添加一些改動

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical" android:layout_width="match_parent"
    android:layout_height="match_parent"
    >
    <RelativeLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content">
        <ImageView
            android:id="@+id/image_gridview"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_centerHorizontal="true"/>
        <CheckBox
            android:id="@+id/checkbox_grid"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:focusable="false"
            android:layout_toRightOf="@+id/image_gridview"
            android:layout_alignParentTop="true"/>
        <TextView
            android:id="@+id/text_gridview"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_centerHorizontal="true"
            android:layout_below="@id/image_gridview"
            />
        <ImageView
            android:id="@+id/image_grid"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:layout_alignRight="@id/image_gridview"
            android:layout_alignBottom="@id/image_gridview"
            android:layout_alignLeft="@+id/image_gridview"
            android:background="#504876FF"
            android:visibility="invisible"/>
    </RelativeLayout>
</LinearLayout>

activity_gridview.xml中不變

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical" android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="@mipmap/smalldog">
    <GridView
        android:id="@+id/gridview"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:numColumns="3"
        ></GridView>
</LinearLayout>

Gridview.java

package StudentAdapter;

/**
 * Created by Administrator on 2015/8/26.
 */
public class Grideview {
    private int img;
    private String fruit_name;
    private boolean isCheck;
    public Grideview( String fruit_name,int img) {
        this.img = img;
        this.fruit_name = fruit_name;
    }

    public boolean isCheck() {
        return isCheck;
    }

    public void setIsCheck(boolean isCheck) {
        this.isCheck = isCheck;
    }

    public int getImg() {
        return img;
    }

    public void setImg(int img) {
        this.img = img;
    }

    public String getFruit_name() {
        return fruit_name;
    }

    public void setFruit_name(String fruit_name) {
        this.fruit_name = fruit_name;
    }
}

GridViewAdapter.java 添加一個Boolean數組來管理是否被選中

package StudentAdapter;

import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.CheckBox;
import android.widget.CompoundButton;
import android.widget.GridView;
import android.widget.ImageView;
import android.widget.TextView;

import com.example.administrator.myapplication.R;

import java.util.List;

/**
 * Created by Administrator on 2015/8/26.
 */
public class GridViewAdapter extends BaseAdapter{
    private List<Grideview> mGrid;
    private LayoutInflater inflaterGridView;
    private boolean []mangerCheckBox;
    public GridViewAdapter( LayoutInflater inflaterGridView,List<Grideview> mGrid) {
        this.mGrid = mGrid;
        this.inflaterGridView = inflaterGridView;
        mangerCheckBox=new boolean[this.mGrid.size()];
    }

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

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

    @Override
    public long getItemId(int position) {
        return position;
    }

    @Override
    public View getView(final int position, View convertView, ViewGroup parent) {
        Grideview grideview=mGrid.get(position);
        ViewHolder vh=null;
        if (convertView==null) {
            vh=new ViewHolder();
            convertView=inflaterGridView.inflate(R.layout.activity_gridview_adapter,null);;
            vh.imageView= (ImageView) convertView.findViewById(R.id.image_gridview);
            vh.textview_name= (TextView) convertView.findViewById(R.id.text_gridview);
            vh.checkBox= (CheckBox) convertView.findViewById(R.id.checkbox_grid);
            vh.imageView_grid= (ImageView) convertView.findViewById(R.id.image_grid);
            convertView.setTag(vh);
        }else{
            vh= (ViewHolder) convertView.getTag();
        }
        vh.textview_name.setText(grideview.getFruit_name());
        vh.imageView.setImageResource(grideview.getImg());
        vh.checkBox.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
            @Override
            public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
                mangerCheckBox[position]=isChecked;
                notifyDataSetChanged();
            }
        });
        vh.checkBox.setChecked(mangerCheckBox[position]);
        if (mangerCheckBox[position]){
            vh.imageView_grid.setVisibility(View.VISIBLE);
        }else{
            vh.imageView_grid.setVisibility(View.INVISIBLE);
        }
        return convertView;
    }

    public void itemSelect(int position) {
        mangerCheckBox[position]=!mangerCheckBox[position];
        notifyDataSetChanged();
    }

GridViewActivity.java

package com.example.administrator.myapplication;

import android.app.Activity;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.widget.AdapterView;
import android.widget.GridView;

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

import StudentAdapter.Fruit;
import StudentAdapter.FruitAdapter;
import StudentAdapter.GridViewAdapter;
import StudentAdapter.Grideview;

/**
 * Created by Administrator on 2015/8/26.
 */
public class GridViewActivity extends Activity{
    private GridView gridView;
    private List<Grideview> mGride;
    private GridViewAdapter mGridView;
    private LayoutInflater inflaterGrideView;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_gridview);
        gridView= (GridView) findViewById(R.id.gridview);
        inflaterGrideView=getLayoutInflater();
        setData();
        mGridView=new GridViewAdapter(inflaterGrideView,mGride);
        gridView.setAdapter(mGridView);
        gridView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
            @Override
            public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
                mGridView.itemSelect(position);
            }
        });
    }
    private void setData() {
        mGride = new ArrayList<>();
        for (int i = 0; i < 10; i++) {
            Grideview apple = new Grideview("蘋果", R.mipmap.apple);
            Grideview pineapple = new Grideview("菠蘿", R.mipmap.pineapple);
            Grideview strawberry = new Grideview("草莓", R.mipmap.strawberry);
            Grideview watermelon = new Grideview("西瓜", R.mipmap.fruit_ninja);
            mGride.add(apple);
            mGride.add(pineapple);
            mGride.add(strawberry);
            mGride.add(watermelon);
        }
    }
}

查看Debug

有時候在程序運行會出現錯誤，我們可以通過查看Debug來檢查錯誤並更正，在出錯代碼行的附近一行的左端顯示行數的鼠標左鍵點擊一下，如圖：

然後點擊工具欄裏的運行圖標，如圖：

程序開始運行，選擇圖片

程序會停在設置斷點的地方，並且會出現如圖：

發現了錯誤，更正後，或是沒錯誤繼續運行，點擊左邊的如圖：

程序會繼續運行

Toast

Toast提示信息，顯示時間有限，沒有焦點，不會打斷當前操作，不能與用戶交互,具體步驟：

·1、調用Toast的靜態方法makeText（）；
·2、添加顯示文本的時長
·3、調用.show()方法

Toast.makeText設置提示信息的內容，Toast.LENGTH_SHORT顯示提示信息現實的時間長短，SHORT是短時間，LONG是長時間

Toast toast = Toast.makeText(getApplicationContext(),"我是一個Toast",Toast.LENGTH_SHORT );

setGravity用來設置提示消息顯示的位置，後兩個參數設置偏離左上角原點的距離

toast.setGravity(Gravity.CENTER_VERTICAL, 0, 0);

有兩種實現過程：
1、

 Button button_toast= (Button) findViewById(R.id.button_toast);
 button_toast.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                switch(v.getId()){
                    case R.id.button_toast:
                        Toast toast = Toast.makeText(getApplicationContext(),"我是一個Toast",Toast.LENGTH_SHORT );
                        toast.setGravity(Gravity.CENTER_VERTICAL, 0, 0);
                        toast.show();
                        break;
                    default:break;
                }
            }
        });

2、先在oncreate（）中聲明button，找到其ID，在其重寫onclick（），

 Button button_toast= (Button) findViewById(R.id.button_toast);
        button_toast.setOnClickListener(this);

 @Override
    public void onClick(View v) {
        switch(v.getId()){
            case R.id.button_toast:
                toast();
                break;
             default:break;
        }

private void toast() {
        Toast toast = Toast.makeText(getApplicationContext(),"我是一個Toast",Toast.LENGTH_SHORT );
        Spanned spanned= Html.fromHtml("我是<img src=''/>一個<font color='#ff8c00'>Toast</font>", new Html.ImageGetter() {
            @Override
            public Drawable getDrawable(String source) {
                Drawable drawable = getResources().getDrawable(R.mipmap.image_boy);
                drawable.setBounds(0, 0, drawable.getIntrinsicWidth(), drawable.getIntrinsicHeight());
                return drawable;
            }
        }, null);
        toast.setText(spanned);
        toast.setDuration(Toast.LENGTH_SHORT);
        toast.setGravity(Gravity.CENTER_VERTICAL, 0, 0);
        toast.show();
    }

自定義toast

toast的樣式可以自己定義
創建一個佈局XML

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical" android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:background="@mipmap/jie2">
    <TextView
        android:id="@+id/text_toast_title"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="自定義的Toast標題"/>
    <LinearLayout
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:orientation="vertical">
        <ImageView
            android:id="@+id/image_toast"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:src="@mipmap/jie6"/>
        <TextView
            android:id="@+id/text_toast"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="自定義的Toast"/>
    </LinearLayout>
</LinearLayout>

實現方式與toast一樣

package com.example.administrator.myapplication;

import android.app.Activity;
import android.app.AlertDialog;
import android.content.DialogInterface;
import android.graphics.drawable.Drawable;
import android.os.Bundle;
import android.text.Html;
import android.text.Spanned;
import android.text.method.PasswordTransformationMethod;
import android.util.Log;
import android.view.Gravity;
import android.view.LayoutInflater;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.CheckBox;
import android.widget.CompoundButton;
import android.widget.EditText;
import android.widget.ListView;
import android.widget.SimpleAdapter;
import android.widget.TextView;
import android.widget.Toast;

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

import StudentAdapter.StudentAdapter;
import StudentAdapter.Student;
/**
 * Created by Administrator on 2015/8/24.
 */
public class CheckBoxActivity extends Activity implements View.OnClickListener{
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout .activity_checkbox);
        Button button_toast_define= (Button) findViewById(R.id.button_toast_define);
        button_toast_define.setOnClickListener(this);
       }
    public void onClick(View v) {
        switch(v.getId()){      
            case R.id.button_toast_define:
                toastDefine();
                break;
           default:break;
        }
    }
     private void toastDefine() {
        Toast toastDefine=new Toast(getApplicationContext());
        LayoutInflater inflater_toast=getLayoutInflater();
        View viewtoast=inflater_toast.inflate(R.layout.activity_toast,null);
        TextView texttoast_title= (TextView) viewtoast.findViewById(R.id.text_toast_title);
        toastDefine.setDuration(Toast.LENGTH_SHORT);
        toastDefine.setView(viewtoast);
        toastDefine.show();
    }
  }

AlertDialog

提示對話框，與Toast不同的是AlertDialog可以有操作，可以進行單選，多選，對應的方法有
setSingleChoiceItems，setMultiChoiceItems,setItems
首先創建builder

 AlertDialog.Builder builder=new AlertDialog.Builder(CheckBoxActivity.this);

setIcon用來設置圖片
setTitle設置標題
setMessage設置顯示提示的內容
setNegativeButton,setNeutralButton,setPositiveButton分別對應對話框下的三個選擇按鈕

還有最後創建生成AlertDialog

AlertDialog dialog=builder.create();
        dialog.show();

簡單地對話框

package com.example.administrator.myapplication;

import android.app.Activity;
import android.app.AlertDialog;
import android.content.DialogInterface;
import android.graphics.drawable.Drawable;
import android.os.Bundle;
import android.text.Html;
import android.text.Spanned;
import android.text.method.PasswordTransformationMethod;
import android.util.Log;
import android.view.Gravity;
import android.view.LayoutInflater;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.CheckBox;
import android.widget.CompoundButton;
import android.widget.EditText;
import android.widget.ListView;
import android.widget.SimpleAdapter;
import android.widget.TextView;
import android.widget.Toast;

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

import StudentAdapter.StudentAdapter;
import StudentAdapter.Student;
/**
 * Created by Administrator on 2015/8/24.
 */
public class CheckBoxActivity extends Activity implements View.OnClickListener{
     @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout .activity_checkbox);
         Button button_alterdialog= (Button) findViewById(R.id.button_alertdialog);
        button_alterdialog.setOnClickListener(this);
    }
       public void onClick(View v) {
        switch(v.getId()){           
            case R.id.button_alertdialog:
                AlertDialog();
                break;
             default:break;
        }
    }
     private void AlertDialog() {
        AlertDialog.Builder builder=new AlertDialog.Builder(CheckBoxActivity.this);
        builder.setIcon(R.mipmap.jie2).setTitle("我是AlertDialog標題").setMessage("我是AlertDialog內容"
        ).setNegativeButton("NegativeButton", new DialogInterface.OnClickListener() {
            @Override
            public void onClick(DialogInterface dialog, int which) {
                Toast.makeText(getApplicationContext(), "點擊的是Negative", Toast.LENGTH_SHORT).show();
            }
        }).setNeutralButton("Neutral", new DialogInterface.OnClickListener() {
            @Override
            public void onClick(DialogInterface dialog, int which) {
                Toast.makeText(getApplicationContext(), "點擊的是Neutral", Toast.LENGTH_SHORT).show();
            }
        }).setPositiveButton("Positive", new DialogInterface.OnClickListener() {
            @Override
            public void onClick(DialogInterface dialog, int which) {
                Toast.makeText(getApplicationContext(), "點擊的是Positive", Toast.LENGTH_SHORT).show();
            }
        });
        AlertDialog dialog=builder.create();
        dialog.show();
    }
}

簡單地選擇並回顯選擇的信息

package com.example.administrator.myapplication;

import android.app.Activity;
import android.app.AlertDialog;
import android.content.DialogInterface;
import android.graphics.drawable.Drawable;
import android.os.Bundle;
import android.text.Html;
import android.text.Spanned;
import android.text.method.PasswordTransformationMethod;
import android.util.Log;
import android.view.Gravity;
import android.view.LayoutInflater;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.CheckBox;
import android.widget.CompoundButton;
import android.widget.EditText;
import android.widget.ListView;
import android.widget.SimpleAdapter;
import android.widget.TextView;
import android.widget.Toast;

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

import StudentAdapter.StudentAdapter;
import StudentAdapter.Student;
/**
 * Created by Administrator on 2015/8/24.
 */
public class CheckBoxActivity extends Activity implements View.OnClickListener{
 private String []mDialog={"第一條數據","第二條數據","第三條數據","第四條數據"};
 @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout .activity_checkbox);
         Button button_alterdialog_select= (Button) findViewById(R.id.button_alertdialog_select);
        button_alterdialog_select.setOnClickListener(this);
        }
         @Override
    public void onClick(View v) {
        switch(v.getId()){
            case R.id.button_toast:
                toast();
                break;
            case R.id.button_toast_define:
                toastDefine();
                break;
            case R.id.button_alertdialog:
                AlertDialog();
                break;
            case R.id.button_alertdialog_select:
                AlertDialogSelect();
                break;
             default:break;
        }
    }
     private void AlertDialogSelect() {
        AlertDialog.Builder builder_select=new AlertDialog.Builder(CheckBoxActivity.this);
        builder_select.setTitle("可選擇的dialog");
        builder_select.setItems(mDialog, new DialogInterface.OnClickListener() {
            @Override
            public void onClick(DialogInterface dialog, int which) {
                Toast.makeText(getApplicationContext(), "選擇的是" + which + "個", Toast.LENGTH_SHORT).show();
            }
        });
        AlertDialog dialog_select=builder_select.create();
        builder_select.show();
    }
  }

可以進行唯一選擇的會先選擇的信息

package com.example.administrator.myapplication;

import android.app.Activity;
import android.app.AlertDialog;
import android.content.DialogInterface;
import android.graphics.drawable.Drawable;
import android.os.Bundle;
import android.text.Html;
import android.text.Spanned;
import android.text.method.PasswordTransformationMethod;
import android.util.Log;
import android.view.Gravity;
import android.view.LayoutInflater;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.CheckBox;
import android.widget.CompoundButton;
import android.widget.EditText;
import android.widget.ListView;
import android.widget.SimpleAdapter;
import android.widget.TextView;
import android.widget.Toast;

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

import StudentAdapter.StudentAdapter;
import StudentAdapter.Student;
/**
 * Created by Administrator on 2015/8/24.
 */
public class CheckBoxActivity extends Activity implements View.OnClickListener{
private Button button_alterdialog_choice;
    private String []mSex={"男","女","其他"};
    private String sex;
     @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout .activity_checkbox);
        button_alterdialog_choice= (Button) findViewById(R.id.button_alertdialog_choice);
        button_alterdialog_choice.setOnClickListener(this);
        }
         @Override
    public void onClick(View v) {
        switch(v.getId()){
            case R.id.button_toast:
                toast();
                break;
            case R.id.button_toast_define:
                toastDefine();
                break;
            case R.id.button_alertdialog:
                AlertDialog();
                break;
            case R.id.button_alertdialog_select:
                AlertDialogSelect();
                break;
            case R.id.button_alertdialog_choice:
                AlertDialogChoice();
                break;      
            default:break;
        }
    }
    private void AlertDialogChoice() {
        AlertDialog.Builder builder_choice=new AlertDialog.Builder(CheckBoxActivity.this);
        builder_choice.setSingleChoiceItems(mSex, 0, new DialogInterface.OnClickListener() {
            @Override
            public void onClick(DialogInterface dialog, int which) {
                sex = mSex[which];
                Toast.makeText(getApplication(), "您的性別是" + mSex[which], Toast.LENGTH_SHORT).show();
            }
        });
        builder_choice.setNeutralButton("取消", new DialogInterface.OnClickListener() {
            @Override
            public void onClick(DialogInterface dialog, int which) {

            }
        });
        builder_choice.setNegativeButton("確定", new DialogInterface.OnClickListener() {
            @Override
            public void onClick(DialogInterface dialog, int which) {
                button_alterdialog_choice.setText("您的性別是"+sex);
            }
        });
        AlertDialog dialog_choice=builder_choice.create();
        dialog_choice.show();
    }
    }

多選擇回顯選擇的信息

package com.example.administrator.myapplication;

import android.app.Activity;
import android.app.AlertDialog;
import android.content.DialogInterface;
import android.graphics.drawable.Drawable;
import android.os.Bundle;
import android.text.Html;
import android.text.Spanned;
import android.text.method.PasswordTransformationMethod;
import android.util.Log;
import android.view.Gravity;
import android.view.LayoutInflater;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.CheckBox;
import android.widget.CompoundButton;
import android.widget.EditText;
import android.widget.ListView;
import android.widget.SimpleAdapter;
import android.widget.TextView;
import android.widget.Toast;

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

import StudentAdapter.StudentAdapter;
import StudentAdapter.Student;
/**
 * Created by Administrator on 2015/8/24.
 */
public class CheckBoxActivity extends Activity implements View.OnClickListener{
 private Button button_alterdialog_multichoice;
    private String []hobits={"旅遊","騎車","登山","下棋","健身","跑步","游泳","打球"};
    private boolean []isCheck=new boolean[hobits.length];
    private  StringBuffer hobit;
     button_alterdialog_multichoice= (Button) findViewById(R.id.button_alertdialog_muiltchoice);
     button_alterdialog_multichoice.setOnClickListener(this);
     }
      @Override
    public void onClick(View v) {
        switch(v.getId()){
            case R.id.button_alertdialog_muiltchoice:
                AlertDialogMultiChoice();
                break;
            default:break;
        }
    }
     private void AlertDialogMultiChoice() {
        AlertDialog.Builder builder_multichoice=new AlertDialog.Builder(CheckBoxActivity.this);
        builder_multichoice.setMultiChoiceItems(hobits, isCheck, new DialogInterface.OnMultiChoiceClickListener() {
            @Override
            public void onClick(DialogInterface dialog, int which, boolean isChecked) {
                isCheck[which]=isChecked;
            }
        });
        builder_multichoice.setNeutralButton("取消", new DialogInterface.OnClickListener() {
            @Override
            public void onClick(DialogInterface dialog, int which) {
                button_alterdialog_multichoice.setText("AlertDialg_MultiChoice");
            }
        });
        builder_multichoice.setNegativeButton("確定", new DialogInterface.OnClickListener() {
            @Override
            public void onClick(DialogInterface dialog, int which) {
                hobit=new StringBuffer();
                for(int i=0;i<isCheck.length;i++){
                    if(isCheck[i]){
                        hobit.append(hobits[i]);
                    }
                }
                button_alterdialog_multichoice.setText("你的愛好是"+hobit);
            }
        });
        AlertDialog dialog_multichoice=builder_multichoice.create();
        dialog_multichoice.show();
    }
}

Android學習0827(Toast、AlertDialog )

添加蒙版

查看Debug

Toast

自定義toast

AlertDialog

Android學習0906（ViewPager，fragment碎片）

Android0911（Android裏的網絡連接）

Android0912（Android 網絡URLConnection）（ing多線程下載）

Android0910（簡單的音樂播放器）

Android學習0826（GridView、Spinner、AutoCompleteTextView、Gallery、ExpandableListView）

Mac下配置sublime實現LaTeX

https://yachay.unat.edu.pe/blog/index.php?comment_area=format_blog&comment_component=blog&comment_co

linux以太網驅動總結