d401692632
Dewey1994
2015-03-18 13:31
采纳率: 0%
浏览 4.3k

Android程序在手机上运行崩溃但是在模拟器上能运行但是还有一个模拟器也是崩溃的

package darkhorse.english.app;

import java.io.File;
import java.io.FileOutputStream;
import java.io.InputStream;

import android.app.Activity;
import android.content.Context;
import android.database.Cursor;
import android.database.sqlite.SQLiteDatabase;
import android.os.Bundle;
import android.text.Editable;
import android.text.TextWatcher;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.view.View.OnClickListener;
import android.widget.AutoCompleteTextView;
import android.widget.CursorAdapter;
import android.widget.ImageButton;
import android.widget.TextView;

public class LookupActivity extends Activity implements OnClickListener, TextWatcher
{
private final String DATABASE_PATH = android.os.Environment
.getExternalStorageDirectory().getAbsolutePath()
+ "/dictionary";
private AutoCompleteTextView autocompletetextview;
private final String DATABASE_FILENAME = "dictionary.db";
private SQLiteDatabase database;
private ImageButton lookupbutton;
private TextView textview;
private ImageButton clearbutton;

@Override
public void onCreate(Bundle savedInstanceState)
{
    super.onCreate(savedInstanceState);

    setContentView(R.layout.lookup_layout);
    database = openDatabase();
    lookupbutton = (ImageButton) findViewById(R.id.lookupbutton);
    textview = (TextView) findViewById(R.id.textview);
    clearbutton = (ImageButton) findViewById(R.id.clearbutton);
    autocompletetextview = (AutoCompleteTextView) findViewById(R.id.autocompletetextview);
    lookupbutton.setOnClickListener(this);
    autocompletetextview.addTextChangedListener(this);
    clearbutton.setOnClickListener(new View.OnClickListener() {

        public void onClick(View arg0) {
            // TODO Auto-generated method stub
            autocompletetextview.setText("");
            textview.setText("");
        }
    });
}



public class DictionaryAdapter extends CursorAdapter
{
    private LayoutInflater layoutInflater;
    @Override
    public CharSequence convertToString(Cursor cursor)
    {
        return cursor == null ? "" : cursor.getString(cursor.getColumnIndex("_id"));
    }

    private void setView(View view, Cursor cursor)
    {
        TextView tvWordItem = (TextView) view;
        tvWordItem.setText(cursor.getString(cursor.getColumnIndex("_id")));
    }

    @Override
    public void bindView(View view, Context context, Cursor cursor)
    {
        setView(view, cursor);
    }

    @Override
    public View newView(Context context, Cursor cursor, ViewGroup parent)
    {
        View view = layoutInflater.inflate(R.layout.word_list_item, null);
        setView(view, cursor);
        return view;
    }

    public DictionaryAdapter(Context context, Cursor c, boolean autoRequery)
    {
        super(context, c, autoRequery);
        layoutInflater = (LayoutInflater) context
                .getSystemService(Context.LAYOUT_INFLATER_SERVICE);
    }
}

public void afterTextChanged(Editable s)
{

    //  必须将English字段的别名设为_id 
    Cursor cursor = database.rawQuery(
            "select english as _id from t_words where english like ?",
            new String[]
            { s.toString() + "%" });
    DictionaryAdapter dictionaryAdapter = new DictionaryAdapter(this,
            cursor, true);
    autocompletetextview.setAdapter(dictionaryAdapter);

    }

public void beforeTextChanged(CharSequence s, int start, int count,
        int after)
{
    // TODO Auto-generated method stub

}

public void onTextChanged(CharSequence s, int start, int before, int count)
{
    // TODO Auto-generated method stub

}


public void onClick(View view)
{
    String sql = "select chinese from t_words where english=?";     
    Cursor cursor = database.rawQuery(sql, new String[]
    { autocompletetextview.getText().toString() });
    String result = "未找到该单词.";
    //  如果查找单词,显示其中文的意思
    if (cursor.getCount() > 0)
    {
        //  必须使用moveToFirst方法将记录指针移动到第1条记录的位置
        cursor.moveToFirst();
        result = cursor.getString(cursor.getColumnIndex("chinese"));
    }
    //  显示查询结果对话框
    textview.setText(result);

}


private SQLiteDatabase openDatabase()
{
    try
    {
        // 获得dictionary.db文件的绝对路径
        String databaseFilename = DATABASE_PATH + "/" + DATABASE_FILENAME;
        File dir = new File(DATABASE_PATH);
        // 如果/sdcard/dictionary目录中存在,创建这个目录
        if (!dir.exists())
            dir.mkdir();
        // 如果在/sdcard/dictionary目录中不存在
        // dictionary.db文件,则从res\raw目录中复制这个文件到
        // SD卡的目录(/sdcard/dictionary)
        if (!(new File(databaseFilename)).exists())
        {
            // 获得封装dictionary.db文件的InputStream对象
            InputStream is = getResources().openRawResource(
                    R.raw.dictionary);
            FileOutputStream fos = new FileOutputStream(databaseFilename);
            byte[] buffer = new byte[8192];
            int count = 0;
            // 开始复制dictionary.db文件
            while ((count = is.read(buffer)) > 0)
            {
                fos.write(buffer, 0, count);
            }

            fos.close();
            is.close();
        }
        // 打开/sdcard/dictionary目录中的dictionary.db文件
        SQLiteDatabase database = SQLiteDatabase.openOrCreateDatabase(
                databaseFilename, null);
        return database;
    }
    catch (Exception e)
    {
    }
    return null;
}

}

求高手给看看

  • 点赞
  • 写回答
  • 关注问题
  • 收藏
  • 邀请回答

3条回答 默认 最新

  • zengnm
    zengnm 2015-03-18 14:46

    应该是Android 版本问题,你的模拟器Android版本和手机 不同。

    点赞 评论
  • d401692632
    Dewey1994 2015-03-19 05:19

    模拟器是4.3的 我借了个同学手机也是4.3 模拟器能运行 手机就崩溃了 那如何解决版本问题呢

    点赞 评论
  • bdmh
    bdmh 2015-03-19 09:18

    先把错误提示分析清楚

    点赞 评论

相关推荐