Changed text at the runtime in textview but after

问题:

I am using Shared Preferences to store data which is came from EditText and set preferences data back to TextView but when i reopen my application textview shows default value. How can set changed data to the TextView and data should not be lost after reopening application. I tried onSaveInstanceState() and onSaveInstanceState() but this works when orientation change of application.

Here in my code i store data into shared Preferences and getting that data back to the TextView PRESET_MESSAGE_ONE i am storing value of EditText.

public void customDialogOne() {
    mDialog = new Dialog(_con);
    mDialog.setContentView(R.layout.custom_dialog_message);
    mDialog.getWindow().setBackgroundDrawableResource(R.color.black);
    mDialog.setTitle("Edit Preset Message");

    btnPresetDialogCancel = (Button) mDialog
            .findViewById(R.id.btnPrDialogCancel);
    edtPresetDialogMessage = (EditText) mDialog
            .findViewById(R.id.edtPrDialogMessage);

    btnPresetDialogSave = (Button) mDialog
            .findViewById(R.id.btnPrDialogSave);
    btnPresetDialogSave.setOnClickListener(new View.OnClickListener() {

        @Override
        public void onClick(View v) {
            SharedPref.writeString(SharedPref.PRESET_MESSGE_ONE,
                    edtPresetDialogMessage.getText().toString());
            msgOne = SharedPref.readString(SharedPref.PRESET_MESSGE_ONE);
            tm.showToast(msgOne);
            tvFrPresetMsgOne.setText(msgOne);
            mDialog.dismiss();

        }
    });
    btnPresetDialogCancel.setOnClickListener(new View.OnClickListener() {

        @Override
        public void onClick(View v) {
            mDialog.dismiss();
        }
    });
    mDialog.show();
}

回答1:

Have you commit your changes in the SharedPreference using SharedPref.commit(); ? Please check that one.

回答2:

My issue has resolved my sequence was wrong to store value in shared Preferences, I used following code:

btnPresetDialogSave.setOnClickListener(new View.OnClickListener() {

        @Override
        public void onClick(View v) {

            tvFrPresetMsgOne.setText(edtPresetDialogMessage.getText()
                    .toString());
            SharedPref.writeString(SharedPref.PRESET_MESSGE_ONE,
                    edtPresetDialogMessage.getText().toString());

            msgOne = SharedPref.readString(SharedPref.PRESET_MESSGE_ONE);
            tvFrPresetMsgOne.setText(msgOne);
            mDialog.dismiss();

        }
    });

and read SharePreferences string in onResume method()