小结几个小问题，关于数据库乱码，dialog

1、读取数据库中的中文时出现乱码问题

2、完全自定义的dialog

3、在xml文件中定义时间格式

1：数据库中文乱码

只要在Cursor读取时，用二进制的形式（getBolb()）读出来再转码就可以了

String s = cursro.getBolb(1);String content = new String(s, "gb2312");

2：自定义dialog

package org.ila.car.filemanager;import android.app.Dialog;import android.content.Context;import android.os.Bundle;import android.view.LayoutInflater;import android.view.View;import android.widget.TextView;/** * 有确定有取消按钮的信息提示对话框 * @author wusj * */public class MsgDialog extends Dialog implements android.view.View.OnClickListener{private int titleID;private int msgID;private Context context;private OnOkClickListener click;private String msg;public void setOnOkClickListener(OnOkClickListener c) {this.click = c;}public interface OnOkClickListener{public void onClick(MsgDialog d);}public MsgDialog(Context context, int theme, int titleID, int msgID) {super(context, theme);this.context = context;this.titleID = titleID;this.msgID = msgID;}public MsgDialog(Context context, int style, int titleID, String msg){super(context, style);this.context = context;this.titleID = titleID;this.msg = msg;}@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);View view = LayoutInflater.from(context).inflate(R.layout.msg_dialog_layout, null);setContentView(view);TextView tvTitle = (TextView) view.findViewById(R.id.tv_title);TextView tvMsg = (TextView) view.findViewById(R.id.tv_msg);tvTitle.setText(context.getResources().getString(titleID));if (msg == null){tvMsg.setText(context.getResources().getString(msgID));} else {tvMsg.setText(msg);}TextView tvOk = (TextView) view.findViewById(R.id.tv_ok);tvOk.setOnClickListener(this);TextView tvCancel = (TextView) view.findViewById(R.id.tv_cancel);tvCancel.setOnClickListener(new View.OnClickListener() {public void onClick(View v) {MsgDialog.this.dismiss();}});}public void onClick(View v) {if (click != null) {click.onClick(this);}}}

xml布局

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:layout_width="348dip"    android:layout_height="193dip"    android:background="@drawable/fm_dialog_bg"    android:gravity="center"    android:orientation="vertical"    android:padding="6dip" >    <TextView        android:layout_marginTop="2dip"        android:layout_marginLeft="2dip"        android:textColor="#ffffff"        android:textSize="22sp"        android:id="@+id/tv_title"        android:layout_width="fill_parent"        android:layout_height="wrap_content"        android:background="@drawable/fm_dialog_top_bg" />    <TextView        android:layout_margin="10dip"        android:layout_weight="1"        android:id="@+id/tv_msg"        android:layout_width="fill_parent"        android:layout_height="0dip" />    <LinearLayout        android:layout_width="fill_parent"        android:layout_height="wrap_content"        android:layout_marginLeft="1dip"        android:orientation="horizontal" >        <TextView            android:id="@+id/tv_ok"            android:layout_width="0dip"            android:layout_height="wrap_content"            android:layout_weight="1"            android:background="@drawable/fm_dialog_btn_ok_bg"            android:gravity="center"            android:text="确定" />        <TextView            android:id="@+id/tv_cancel"            android:layout_width="0dip"            android:layout_height="wrap_content"            android:layout_weight="1"            android:background="@drawable/fm_dialog_btn_cancel_bg"            android:gravity="center"            android:text="取消" />    </LinearLayout>    </LinearLayout>

styles.xml

<?xml version="1.0" encoding="utf-8"?><resources>    <style name="dialog" parent="@android:style/Theme.Dialog">        <!-- name是我们在使用时要用到的资源的标志，parent是指当前的样式所继承的父类样式 -->        <item name="android:windowFrame">@null</item>        <item name="android:windowIsFloating">true</item>        <item name="android:windowIsTranslucent">true</item>        <item name="android:windowNoTitle">true</item>        <!-- 隐藏标题栏 -->        <item name="android:background">@android:color/transparent</item>        <item name="android:windowBackground">@android:color/transparent</item>        <item name="android:backgroundDimEnabled">true</item>        <item name="android:backgroundDimAmount">0.6</item>    </style></resources>

3：在xml文件中定义时间格式，并在程序中引用 

Values.xml中<string name="min_available" msgid="5493947690062988925">"还剩 <xliff:g id="MINUTES">%d</xliff:g> 分钟"</string>程序中引用：timeStr = String.format(res.getString(R.string.min_available), t/60 + 1);