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我m having trouble with maintaining the dialog on orientation change. I正在使用 onSaveInstanceState、onRestoreInstanceState。但是我在onRestore中有一个空值。当我改变屏幕的方向时，我希望对话框显示相同的值。谢谢！这是对话框：

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);
        }


    }

保存：

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


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

恢复：

@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);

    }
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1 回答 1

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尝试禁用重新创建 Activity 添加android:configChanges="orientation|screenSize"到清单文件中的活动。

于 2015-07-25T12:25:32.440 回答