本文共 6661 字，大约阅读时间需要 22 分钟。

?Android????????Activity?????????????????DialogFragment??AlertDialog?Dialog?????????DialogFragment??????????????????????Activity????????????????????

?????AskDialogFragment??????

AskDialogFragment.java

public class AskDialogFragment extends DialogFragment {
    private Context mContext;
    private LayoutInflater mInflater;
    private View tipsView;
    private TextView tipsTextView;
    private TextView textTitle;
    private Button buttonYes;
    private Button buttonNo;
    private AskFragmentInterface askFragmentInterface;
    public static AskDialogFragment newInstance() {
        Bundle args = new Bundle();
        AskDialogFragment fragment = new AskDialogFragment();
        fragment.setArguments(args);
        return fragment;
    }
    public enum FOCUS_DIR {
        FOCUS_YES, FOCUS_NO
    }
    @Override
    public void onCreate(Bundle savedInstanceState) {
        setStyle(AskDialogFragment.STYLE_NO_FRAME, R.style.Theme_No_Frame);
        super.onCreate(savedInstanceState);
    }
    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
        System.out.println("tag = " + getTag()); // tag from activity
        getDialog().requestWindowFeature(Window.FEATURE_NO_TITLE);
        this.mContext = getActivity();
        this.mInflater = LayoutInflater.from(mContext);
        initView();
        initPopup();
        setFocusDir(FOCUS_DIR.FOCUS_YES);
        setButtonNoStatus(View.VISIBLE);
        setTitle(R.string.warning);
        setMessage(R.string.really_delete_all);
        setPositiveButton(getString(R.string.yes), new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                askFragmentInterface.setAskPositiveClick();
                dismiss();
            }
        });
        setNegativeButton(getString(R.string.no), new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                dismiss();
            }
        });
        buttonNo.setOnKeyListener(new View.OnKeyListener() {
            @Override
            public boolean onKey(View v, int keyCode, KeyEvent event) {
                if (event.getAction() == KeyEvent.ACTION_DOWN) {
                    switch (keyCode) {
                        case KeyEvent.KEYCODE_DPAD_LEFT:
                        case KeyEvent.KEYCODE_DPAD_RIGHT:
                            buttonNo.clearFocus();
                            buttonYes.requestFocus();
                            buttonYes.setFocusable(true);
                            return true;
                    }
                }
                return false;
            }
        });
        buttonYes.setOnKeyListener(new View.OnKeyListener() {
            @Override
            public boolean onKey(View v, int keyCode, KeyEvent event) {
                if (event.getAction() == KeyEvent.ACTION_DOWN) {
                    switch (keyCode) {
                        case KeyEvent.KEYCODE_DPAD_LEFT:
                        case KeyEvent.KEYCODE_DPAD_RIGHT:
                            buttonYes.clearFocus();
                            buttonNo.requestFocus();
                            buttonNo.setFocusable(true);
                            return true;
                    }
                }
                return false;
            }
        });
        return tipsView;
    }
    @Override
    public void onResume() {
        super.onResume();
    }
    public void setAskDialogListener(AskFragmentInterface listener) {
        askFragmentInterface = listener;
    }
    public interface AskFragmentInterface {
        void setAskPositiveClick();
    }
    private void initView() {
        tipsView = mInflater.inflate(R.layout.ask_tips_dialog, null);
        WindowManager.LayoutParams params = new WindowManager.LayoutParams();
        params.type = WindowManager.LayoutParams.TYPE_APPLICATION_OVERLAY;
        getActivity().getWindow().setWindowAnimations(R.style.popwin_anim_bottom_style);
        textTitle = (TextView) tipsView.findViewById(R.id.asktipsTitleText);
        tipsTextView = (TextView) tipsView.findViewById(R.id.asktips_dialog_tips_text);
        buttonNo = (Button) tipsView.findViewById(R.id.asktips_dialog_butNo);
        buttonYes = (Button) tipsView.findViewById(R.id.asktips_dialog_butYes);
    }
    public void setFocusDir(FOCUS_DIR dir) {
        if (dir == FOCUS_DIR.FOCUS_NO) {
            buttonYes.clearFocus();
            buttonNo.requestFocus();
            buttonNo.setFocusable(true);
        } else {
            buttonNo.clearFocus();
            buttonYes.requestFocus();
            buttonYes.setFocusable(true);
        }
    }
    private void initPopup() {
        WindowManager.LayoutParams lp = getActivity().getWindow().getAttributes();
        lp.gravity = Gravity.CENTER;
        lp.type = WindowManager.LayoutParams.TYPE_PHONE | WindowManager.LayoutParams.TYPE_SYSTEM_ERROR;
        lp.width = WindowManager.LayoutParams.MATCH_PARENT;
        lp.height = WindowManager.LayoutParams.MATCH_PARENT;
        getActivity().getWindow().setAttributes(lp);
    }
    public void setMessage(CharSequence message) {
        tipsTextView.setText(message);
    }
    public void setMessage(int messageId) {
        tipsTextView.setText(messageId);
    }
    public void setTitle(CharSequence message) {
        textTitle.setText(message);
    }
    public void setTitle(int messageId) {
        textTitle.setText(messageId);
    }
    public void setPositiveButton(CharSequence text, Button.OnClickListener listener) {
        buttonYes.setText(text);
        buttonYes.setOnClickListener(listener);
    }
    public void setPositiveButton(int id, Button.OnClickListener listener) {
        buttonYes.setText(id);
        buttonYes.setOnClickListener(listener);
    }
    public void setNegativeButton(CharSequence text, Button.OnClickListener listener) {
        buttonNo.setText(text);
        buttonNo.setOnClickListener(listener);
    }
    public void setNegativeButton(int id, Button.OnClickListener listener) {
        buttonNo.setText(id);
        buttonNo.setOnClickListener(listener);
    }
    public void setButtonNoStatus(int visibility) {
        buttonNo.setVisibility(visibility);
        buttonYes.setFocusable(true);
        buttonYes.requestFocus();
    }
}

????

??????????????????????

public interface AskFragmentInterface {
    void setAskPositiveClick();
}

???AskDialogFragment???????

final AskDialogFragment askTipsDialog = AskDialogFragment.newInstance();
askTipsDialog.setAskDialogListener(this);
askTipsDialog.show(getFragmentManager(), "dialog_fragment");

XML??

????

转载地址：http://xbbzz.baihongyu.com/