使用另一个Java类的方法

时间:2015-03-08 04:20:13

标签: android

如何在(NoteEdit java)中使用方法speakOut from(Detail java) 所以我在menu_search而不是viewDetails(mDateText)之后使用它。 这是详细课程

public class Detail extends Activity implements TextToSpeech.OnInitListener{
    private Button prsstospeak;
public String data;
    private int result=0;
      private TextToSpeech tts;
private TextView passedView;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        // TODO Auto-generated method stub
        super.onCreate(savedInstanceState);
        setContentView(R.layout.disp);
         tts = new TextToSpeech(this, this);



        prsstospeak.setOnClickListener(new View.OnClickListener() {
           @Override
           public void onClick(View arg0) {
                  speakOut();
                }
            });
          }
    @Override
      public void onDestroy() {
      // Don't forget to shutdown!
      if (tts != null) {
        tts.stop();
        tts.shutdown();
       }
       super.onDestroy();
      }
      //It will called before TTS started
      @Override
      public void onInit(int status) {
      // TODO Auto-generated method stub
      //check status for TTS is initialized or not
      if (status == TextToSpeech.SUCCESS) {
      //if TTS initialized than set language
      result = tts.setLanguage(Locale.US);

      // tts.setPitch(5); // you can set pitch level
      // tts.setSpeechRate(2); //you can set speech speed rate

      //check language is supported or not
      //check language data is available or not
     if (result == TextToSpeech.LANG_MISSING_DATA || result == TextToSpeech.LANG_NOT_SUPPORTED) {
       Toast.makeText(this, "Missing data", Toast.LENGTH_LONG).show();
       //disable button
       prsstospeak.setEnabled(false);
      } else {

          prsstospeak.setEnabled(true);
       }
      } else {
          Log.e("TTS", "Initilization Failed");
         }
      }

      private void speakOut() {

      if(result!=tts.setLanguage(Locale.US))
      {
      Toast.makeText(getApplicationContext(), "Enter right Words...... ", Toast.LENGTH_LONG).show();
      }else
       {
        //speak given text
        tts.speak(data, TextToSpeech.QUEUE_FLUSH, null);
       }
      }
}

这是NoteEdie:

public class NoteEdit extends Activity {
    public static int numTitle = 1; 
    public static String curDate = "";
    public static String curText = "";  
    private EditText mTitleText;
    private EditText mBodyText;
    private TextView mDateText;
    private Long mRowId;

    private Cursor note;

    private NotesDbAdapter mDbHelper;

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

        mDbHelper = new NotesDbAdapter(this);
        mDbHelper.open();        

        setContentView(R.layout.note_edit);

        setTitle(R.string.app_name);

        mTitleText = (EditText) findViewById(R.id.title);
        mBodyText = (EditText) findViewById(R.id.body);
        mDateText = (TextView) findViewById(R.id.notelist_date);

        long msTime = System.currentTimeMillis();  
        Date curDateTime = new Date(msTime);

        SimpleDateFormat formatter = new SimpleDateFormat("d'/'M'/'y");  
        curDate = formatter.format(curDateTime);        

        mDateText.setText(""+curDate);


        mRowId = (savedInstanceState == null) ? null :
            (Long) savedInstanceState.getSerializable(NotesDbAdapter.KEY_ROWID);
        if (mRowId == null) {
            Bundle extras = getIntent().getExtras();
            mRowId = extras != null ? extras.getLong(NotesDbAdapter.KEY_ROWID)
                                    : null;
        }

        populateFields();

    }

      public static class LineEditText extends EditText{

            public LineEditText(Context context, AttributeSet attrs) {
                super(context, attrs);
                    mRect = new Rect();
                    mPaint = new Paint();
                    mPaint.setStyle(Paint.Style.FILL_AND_STROKE);
                    mPaint.setColor(Color.BLUE);
            }

            private Rect mRect;
            private Paint mPaint;       

            @Override
            protected void onDraw(Canvas canvas) {

                int height = getHeight();
                int line_height = getLineHeight();

                int count = height / line_height;

                if (getLineCount() > count)
                    count = getLineCount();

                Rect r = mRect;
                Paint paint = mPaint;
                int baseline = getLineBounds(0, r);

                for (int i = 0; i < count; i++) {

                    canvas.drawLine(r.left, baseline + 1, r.right, baseline + 1, paint);
                    baseline += getLineHeight();

                super.onDraw(canvas);
            }

        }
      }

      @Override
        protected void onSaveInstanceState(Bundle outState) {
            super.onSaveInstanceState(outState);
            saveState();
            outState.putSerializable(NotesDbAdapter.KEY_ROWID, mRowId);
        }

        @Override
        protected void onPause() {
            super.onPause();
            saveState();
        }

        @Override
        protected void onResume() {
            super.onResume();
            populateFields();
        }

        @Override
        public boolean onCreateOptionsMenu(Menu menu) {
            // Inflate the menu; this adds items to the action bar if it is present.
            getMenuInflater().inflate(R.menu.noteedit_menu, menu);
            return true;        
        }

        @Override
        public boolean onOptionsItemSelected(MenuItem item) {

            switch (item.getItemId()) {
            case R.id.menu_about:


                dialog.setPositiveButton("OK", new DialogInterface.OnClickListener() {

                       @Override
                       public void onClick(DialogInterface dialog, int which) {
                           dialog.cancel();

                       }
                   });
                   dialog.show();              
                   return true;
            case R.id.menu_delete:
                if(note != null){
                    note.close();
                    note = null;
                }
                if(mRowId != null){
                    mDbHelper.deleteNote(mRowId);
                }
                finish();
                return true;
                //speech button
            case R.id.menu_search:
                viewDetails(mDateText);
                finish();           
                return true;


            case R.id.menu_save:
                saveState();
                finish();           
                return true;
           /* case android.R.id.home:
                finish();  */   
           default:
                return super.onOptionsItemSelected(item);
            }


        }




        private void saveState() {
            String title = mTitleText.getText().toString();
            String body = mBodyText.getText().toString();

            if(mRowId == null){
                long id = mDbHelper.createNote(title, body, curDate);
                if(id > 0){
                    mRowId = id;
                }else{
                    Log.e("saveState","failed to create note");
                }
            }else{
                if(!mDbHelper.updateNote(mRowId, title, body, curDate)){
                    Log.e("saveState","failed to update note");
                }
            }
        }


        private void populateFields() {
            if (mRowId != null) {
                note = mDbHelper.fetchNote(mRowId);
                startManagingCursor(note);
                mTitleText.setText(note.getString(
                        note.getColumnIndexOrThrow(NotesDbAdapter.KEY_TITLE)));
                mBodyText.setText(note.getString(
                        note.getColumnIndexOrThrow(NotesDbAdapter.KEY_BODY)));
                curText = note.getString(
                        note.getColumnIndexOrThrow(NotesDbAdapter.KEY_BODY));
            }

        }
public void viewDetails(View view){

String data= mDbHelper.getALLData();



}

}

如何使用(详情java)中的方法speakOut(NoteEdit java) 所以我在menu_search而不是viewDetails(mDateText)之后使用它。

1 个答案:

答案 0 :(得分:0)

它不是从另一个活动调用活动中的方法的好方法! 你有2个解决方案:

  1. 最简单的方法(我认为):如果你有一种方法(或多种方法) 你使用很多和不同的类(如活动或 片段),将它们放在一个类中并将此类导入到您的类中 活动并使用此方法。

  2. 调用包含此方法的活动 startActivityForResult和intent并返回你的结果 活动。有关这种方式的更多信息:

  3. How to manage `startActivityForResult` on Android?