安卓开发仿有道词典和谷歌翻译词典软件在线输入翻译源码下载

Posted 2021-07-22 weixin_40228600

可用android studio直接打开，仿有道词典、谷歌翻译软件制作，在线翻译，提供源码下载！

 @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        //初始化普通数据;
        initType();
        //得到权限
        primission();
        //初始化查词控件
        initWordView();
        //初始化搜索框
        initView();
        //点击输入框外实现软键盘隐藏
        searchWords_fatherLayout.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                InputMethodManager inputMethodManager = (InputMethodManager) getSystemService(INPUT_METHOD_SERVICE);
                inputMethodManager.hideSoftInputFromWindow(v.getWindowToken(), 0);
            }
        });
        //创建小悬浮窗口
        show(view);
        searchWords_voiceE = (ImageButton) findViewById(R.id.searchWords_voiceE);
        searchWords_voiceE.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                wordsAction.playMP3(words.getKey(), "E", MainActivity.this);


            }
        });
        searchWords_voiceA = (ImageButton) findViewById(R.id.searchWords_voiceA);
        searchWords_voiceA.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                wordsAction.playMP3(words.getKey(), "A", MainActivity.this);
            }
        });

        // 清空搜索历史
        tv_clear.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                //删除记录
                deleteData();
                //加载数据
                queryData("");
            }
        });
        // 修改回车键功能
        et_search.setOnKeyListener(new View.OnKeyListener() {// 输入完后按键盘上的搜索键

            public boolean onKey(View v, int keyCode, KeyEvent event) {
                if (keyCode == KeyEvent.KEYCODE_ENTER && event.getAction() == KeyEvent.ACTION_DOWN) {
                    // 先隐藏键盘防止挤原有的布局
                    ((InputMethodManager) getSystemService(INPUT_METHOD_SERVICE)).hideSoftInputFromWindow(
                            getCurrentFocus().getWindowToken(), InputMethodManager.HIDE_NOT_ALWAYS);
                    // 按完搜索键后将当前查询的关键字保存起来,如果该关键字已经存在就不执行保存
                    boolean hasData = hasData(et_search.getText().toString().trim());
                    if (!hasData) {
                        insertData(et_search.getText().toString().trim());
                        queryData("");
                    }
                }
                return false;
            }
        });
        // 搜索框的文本变化实时监听
        et_search.addTextChangedListener(new TextWatcher() {
            @Override
            public void beforeTextChanged(CharSequence s, int start, int count, int after) {

            }

            @Override
            public void onTextChanged(CharSequence s, int start, int before, int count) {
                if(!et_search.getText().toString().trim().equals(null))
                loadWords(et_search.getText().toString().trim());

            }

            @Override
            public void afterTextChanged(Editable s) {
                if (s.toString().trim().length() == 0) {
                    tv_tip.setText("搜索历史");
                } else {
                    tv_tip.setText("搜索结果");

                }
                String tempName = et_search.getText().toString();
                // 根据tempName去模糊查询数据库中有没有数据
                queryData(tempName);


            }
        });
//搜索点击的搜查记录item
        listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
            @Override
            public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
                if (ischech) {
                TextView textView = (TextView) view.findViewById(android.R.id.text1);
                String name = textView.getText().toString();
                et_search.setText(name);
                loadWords(name);

            }else {
                    ischech=true;
                }
        }});
        //删除长按的搜查记录item
        listView.setOnItemLongClickListener(new AdapterView.OnItemLongClickListener(){
            @Override
            public boolean onItemLongClick(AdapterView<?> parent, View view, int position, long id){
                TextView textView = (TextView) view.findViewById(android.R.id.text1);
                String name = textView.getText().toString();
                db = helper.getWritableDatabase();
                db.execSQL("delete from records where name =?", new String[]{name});
                db.close();
                queryData("");
                ischech=false;
                return ischech;
        }


        });}

 //创建数据表或者打开数据表
    private void init(){
        helper=new RecordSQLiteOpenHelper(MainActivity.this);
        //加载数据
        queryData("");
    }

//添加数据
    private void insertData(String tempName) {
        db = helper.getWritableDatabase();
        db.execSQL("insert into records(name) values('" + tempName + "')");
        db.close();
    }

    //加载数据
    private void queryData(String tempName) {
        Cursor cursor = helper.getReadableDatabase().rawQuery(
                //查询records表中的id字段起个别名为“_id”（这是为了下面的创建适配器）,条件是name段包含“”
                "select id as _id,name from records where name like '%" + tempName + "%' order by id desc ", null);
        // 创建adapter适配器对象，这里使用系统定义好的布局文件只显示一行文字
        adapter=new SimpleCursorAdapter(this,android.R.layout.simple_list_item_1,cursor,new String[]{"name"},new int[]{ android.R.id.text1 },CursorAdapter.FLAG_REGISTER_CONTENT_OBSERVER);
        // 设置适配器
        listView.setAdapter(adapter);
        //记住你划到的位置,重新加载数据的时候不会改变位置,只是改变了数据
        adapter.notifyDataSetChanged();
    }
    //检查数据库中是否已经有该条记录
    private boolean hasData(String tempName) {
        Cursor cursor = helper.getReadableDatabase().rawQuery(
                "select id as _id,name from records where name =?", new String[]{tempName});
        //判断是否有下一个
        loadWords(tempName);
        return cursor.moveToNext();
    }

    private void initView() {
        et_search = (EditText) findViewById(R.id.et_search);
        tv_tip = (TextView) findViewById(R.id.tv_tip);
        listView = (MyListView) findViewById(R.id.listView);
        tv_clear = (TextView) findViewById(R.id.tv_clear);
        //创建数据表或者打开数据表
         init();
        // 调整EditText左边的搜索按钮的大小
        Drawable drawable = getResources().getDrawable(R.drawable.search);
        drawable.setBounds(0, 0, 60, 60);// 第一0是距左边距离，第二0是距上边距离，60分别是长宽
        et_search.setCompoundDrawables(drawable, null, null, null);// 只放左边
    }
    //网络查词完成后回调handleMessage方法
    private Handler handler = new Handler() {
        @Override
        public void handleMessage(Message msg) {
            switch (msg.what) {
                case 111:
                    //判断网络查找不到该词的情况
                    if (words.getSent().length() > 0) {
                        upDateView();
                    } else {
                        searchWords_linerLayout.setVisibility(View.GONE);
                        Toast.makeText(MainActivity.this, "抱歉！找不到该词！", Toast.LENGTH_SHORT).show();
                    }
                    Log.d("测试", "保存成功");
            }
        }
    };
    // 读取words的方法，优先从数据中搜索，没有在通过网络搜索
    public void loadWords(String key) {
        words = wordsAction.getWordsFromSQLite(key);
        if ("" == words.getKey()) {
            String address = wordsAction.getAddressForWords(key);
            HttpUtil.sentHttpRequest(address, new HttpCallBackListener() {
                @Override
                public void onFinish(InputStream inputStream) {
                    WordsHandler wordsHandler = new WordsHandler();
                    ParseXML.parse(wordsHandler, inputStream);
                    words = wordsHandler.getWords();
                    setWords(words);
                   wordsAction.saveWordsMP3(words);
                    wordsAction.saveWords(words);
                    handler.sendEmptyMessage(111);
                }

                @Override
                public void onError() {

                }
            });
        } else {
            setWords(words);
            //加载数据到界面
            upDateView();
        }
    }

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