我如何從共享首選項中檢索編輯文本中的數據？

Question

嗨，所有人都可以告訴我在保存後，我在編輯文本中獲得保存的數據，我的意思是當我保存一些文本，然後我希望該文本將始終出現在編輯文本謝謝。 這裏是我的代碼：

public class MainActivity extends AppCompatActivity { 

    private Toolbar toolbar; 
    private EditText inputName; 
    private TextInputLayout inputLayoutName; 
    private Button btnSave; 

    public static final String MyPREFERENCES = "MyPrefs" ; 
    public static final String Message = "nameKey"; 
    SharedPreferences sharedpreferences; 
    @Override 
    protected void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.activity_main); 

     toolbar = (Toolbar) findViewById(R.id.toolbar); 
     setSupportActionBar(toolbar); 

     inputLayoutName = (TextInputLayout) findViewById(R.id.input_layout_name); 
     inputName = (EditText) findViewById(R.id.input_message); 
     btnSave = (Button) findViewById(R.id.btn_save); 

     inputName.addTextChangedListener(new MyTextWatcher(inputName)); 
     sharedpreferences = getSharedPreferences(MyPREFERENCES, Context.MODE_PRIVATE); 
     btnSave.setOnClickListener(new View.OnClickListener() { 
      @Override 
      public void onClick(View view) { 
       String m = inputName.getText().toString(); 
       SharedPreferences.Editor editor = sharedpreferences.edit(); 

       editor.putString(Message, m); 
       editor.apply(); 
       Toast.makeText(getApplicationContext(), "Thank You!", Toast.LENGTH_SHORT).show(); 
      } 
     }); 
    } 

Answer 1

inputName.setText(sharedpreferences.getString(Message, "default_value")); 

Answer 2

試試這個

btnSave.setOnClickListener(new View.OnClickListener() { 
       @Override 
       public void onClick(View view) { 
        String m = inputName.getText().toString(); 
        SharedPreferences.Editor editor = sharedpreferences.edit(); 

        editor.putString(Message, m); 
        editor.apply(); 
        Toast.makeText(getApplicationContext(), "Thank You!", Toast.LENGTH_SHORT).show(); 
        inputName.setText(m, TextView.BufferType.EDITABLE); //set the text here 
       } 
      });