Android對話框及其在屏幕方向更改時的狀態維護

Question

我m having trouble with maintaining the dialog on orientation change. I m having trouble with maintaining the dialog on orientation change. I使用onSaveInstanceState，onRestoreInstanceState。 但是我在onRestore中有一個null。 當我更改屏幕方向時，我希望對話框顯示相同的值。 謝謝！ 這是對話框：

private void ratedialog() {

        dialog = new Dialog(this);
        dialog.setContentView(R.layout.dialog);
        dialog.setTitle("Rate it!");
        dialog.setCancelable(true);
        dialog.show();

        seekbar = (SeekBar) dialog.findViewById(R.id.rate_seekbar);
        button_done = (Button) dialog.findViewById(R.id.button_done);
        seekbar_result = (TextView) dialog.findViewById(R.id.seekbar_result);
        checkBox_seen = (CheckBox) dialog.findViewById(R.id.checkBox_seen);

        button_done.setOnClickListener(EditActivity.this);
        seekbar.setOnSeekBarChangeListener(EditActivity.this);
        checkBox_seen.setOnCheckedChangeListener(EditActivity.this);

        Intent callingIntent = getIntent();
        if (callingIntent.getAction().equals(Intent.ACTION_OPEN_DOCUMENT)) {

            Movie movie = dbHandler.query(id);
            rate = movie.getRate();
            seen = movie.isSeen();

            seekbar.setProgress(rate);
            image_seen.setImageResource(R.drawable.seen);
            image_seen.setVisibility(View.INVISIBLE);
            checkBox_seen.setChecked(seen);
        }else if (callingIntent.getAction().equals(Intent.ACTION_EDIT)){
            seekbar.setProgress(rate);
            image_seen.setImageResource(R.drawable.seen);
            image_seen.setVisibility(View.INVISIBLE);
            checkBox_seen.setChecked(seen);
        }else if (callingIntent.getAction().equals(Intent.ACTION_INSERT)){
            seekbar.setProgress(rate);
            image_seen.setImageResource(R.drawable.seen);
            image_seen.setVisibility(View.INVISIBLE);
            checkBox_seen.setChecked(seen);
        }


    }

onSave：

@Override
    protected void onSaveInstanceState(Bundle outState) {
        super.onSaveInstanceState(outState);


        if (rate != 0){
            outState.putInt("rate", rate);
        }
        outState.putBoolean("check_box", seen);

onRestrore：

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

        seen = savedInstanceState.getBoolean("check_box");
        rate = savedInstanceState.getInt("rate");
       checkBox_seen.setChecked(seen);
       seekbar.setProgress(rate);

    }

Answer 1

嘗試禁用對Activity的重新創建，將android:configChanges="orientation|screenSize"到清單文件中的Activity中。