SharedPreferences没有保存，只有默认值

Question

我在android studio中编写了一个android应用程序。我的ProfileView类扩展了activity_profile_view.xml活动，允许用户更改其名称和描述。但每次调用onCreate或onResume方法时，都会显示默认值。没有显示应该保存在onClick或onPause中的值。谢谢，这是我第一篇文章。

public class ProfileView extends Activity implements View.OnClickListener{ 

public EditText NameEdit, AboutEdit; 
public Button SaveButton; 
public ImageButton NewPic; 
public static final String Profile_Prefs = "Pro_File"; 
public static SharedPreferences profile; 

@Override 
protected void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.activity_profile_view); 
    NameEdit = (EditText) findViewById(R.id.NameEdit); 
    AboutEdit = (EditText) findViewById(R.id.AboutEdit); 
    SaveButton = (Button) findViewById(R.id.SaveButton); 

    SaveButton.setOnClickListener(this); 

    //Restore Preferences 
    profile = this.getSharedPreferences(Profile_Prefs, 0); 
    AboutEdit.setText(profile.getString("about", "About Me")); 
    NameEdit.setText(profile.getString("name","name")); 
} 
@Override 
public void onClick(View v) { 

      SharedPreferences profile = getSharedPreferences(Profile_Prefs, 0); 
      SharedPreferences.Editor editor = profile.edit(); 
      editor.putString(NameEdit.toString(),"name"); 
      editor.putString(AboutEdit.toString(),"about"); 
      editor.apply(); 
      Intent mainIntent = new Intent(this, Main.class); 
      startActivity(mainIntent); 

}; 
@Override 
protected void onPause(){ 
    super.onPause(); 
    SharedPreferences profile = getSharedPreferences(Profile_Prefs, 0); 
    SharedPreferences.Editor editor = profile.edit(); 
    editor.putString(NameEdit.toString(),"name"); 
    editor.putString(AboutEdit.toString(),"about"); 
    editor.commit(); 
} 
@Override() 
protected void onResume(){ 
    super.onResume(); 
    profile = this.getSharedPreferences(Profile_Prefs, 0); 
    AboutEdit.setText(profile.getString("about", "About Me")); 
    NameEdit.setText(profile.getString("name","name")); 
} 


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

固定的onClick和的onPause之后我得到了在应用中EDITTEXT领域休耕时的onResume或的onCreate被调用。

android.widget.EditText {1a0ea60cVFED..CL.F ...... 32,263736,426＃7f0a0003应用程式：ID/NameEdit} android.widget.EditText {651555eVFED..CL .. ...... 92456-676,796＃7f0a0009应用：ID/AboutEdit}

Answer 1

我认为在OnClick()方法，你需要改变这一点：

@Override 
public void onClick(View v) { 

     SharedPreferences profile = getSharedPreferences(Profile_Prefs, 0); 
     SharedPreferences.Editor editor = profile.edit(); 
     editor.putString(NameEdit.toString(),"name"); 
     editor.putString(AboutEdit.toString(),"about"); 
     editor.apply(); 
     Intent mainIntent = new Intent(this, Main.class); 
     startActivity(mainIntent); 

}; 

与此：

@Override 
public void onClick(View v) { 

     SharedPreferences profile = getSharedPreferences(Profile_Prefs, 0); 
     SharedPreferences.Editor editor = profile.edit(); 
     editor.putString("name",NameEdit.getText().toString()); //HERE I THINK YOU INVERTED KEY,VALUE ORDER, THIS IS THE CORRECT WAY 
     editor.putString("about",AboutEdit.getText().toString()); //INVERTED KEY,VALUE ORDER HERE TOO 
     editor.apply(); 
     Intent mainIntent = new Intent(this, Main.class); 
     startActivity(mainIntent); 
}; 

希望这有助于

编辑：我没有注意到，但你有相同的的onPause（）方法：

@Override 
protected void onPause(){ 
    super.onPause(); 
    SharedPreferences profile = getSharedPreferences(Profile_Prefs, 0); 
    SharedPreferences.Editor editor = profile.edit(); 
    editor.putString("name",NameEdit.getText().toString()); //I THINK THIS IS THE CORRECT WAY 
    editor.putString("about",AboutEdit.getText().toString()); //I THINK THIS IS THE CORRECT WAY 
    editor.commit(); 
}