Intent传递使用数据库的问题

Question

My problem is how to pass Rating bar value in to another activity using another putExtra method?any one solve this problem? Here is my First activity

public void giveRating(View v)


    {
            String Name =  spinner.getSelectedItem().toString();
            Float Rating = ratingBar.getRating();
        String query = "insert into Rating values('"+Name+"',"+Rating+")";
        try
        {
            sqLiteDatabase.execSQL(query);
            AlertDialog.Builder ab = new AlertDialog.Builder(this);
            ab.setMessage("DATA SAVED");
            ab.show();
        }catch (Exception e)
        {
            Log.e("InsertionException",""+e);
        }
    }
    public void viewRating(View v)
    {
        try {
            StringBuffer sb = new StringBuffer();
            String query = "select * from Rating";
            Cursor cursor = sqLiteDatabase.rawQuery(query, null);
            boolean res = cursor.moveToFirst();
            if (res) {
                do {
                    String Name = cursor.getString(0);
                    String Rating = cursor.getString(1);

                    sb.append(Name + ":" + Rating+"\n");
                } while (cursor.moveToNext());
            } else {

                AlertDialog.Builder ab = new AlertDialog.Builder(this);
                ab.setMessage("No data To read");
                ab.show();
            }

            String value = sb.toString();
            Intent i = new Intent(MainActivity.this, Items.class);
            i.putExtra("k1", value);
            startActivity(i);


        }
        catch (Exception e)
        {
            Log.e("ReadDataEXception",""+e);
        }

Second Activity

TextView textView;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.items_layout);
        textView = (TextView)findViewById(R.id.tv3);
        textView1 = (TextView)findViewById(R.id.tv4);
        Intent i = getIntent();
        String name;
        Bundle b = getIntent().getExtras();
        name= b.getString("k1");
        textView.setText(name);
        textView.setTextSize(20);

Database Activity

 public Database(Context c)


    {
        super(c,DBNAME,null,VERSION);
    }
    @Override
    public void onCreate(SQLiteDatabase db)
    {
        try {
            String query = "create table Rating(Name TEXT,Rating REAL)";
            db.execSQL(query);
        }catch (Exception e)
        {
            Log.e("TableCreationException",""+e);
        }
    }

    @Override
    public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {

    }
}

Answer 1

You could simply add another putExtra with keyName like

    Intent i = new Intent(MainActivity.this, Items.class);
    i.putExtra("name", name);
    i.putExtra("rating",rating);
    startActivity(i);

And get from Items activity

    Intent i = getIntent();
    String name;
    String rating;

    Bundle b = getIntent().getExtras();

    name= b.getString("name");
    rating= b.getString("rating");

    textView.setText(name);
    textView1.setText(rating);

    textView.setTextSize(20);

Hope it is helpful for you.