Dialog和AlertDialog及ProgressDialog

Dialog/AlertDialog/ProgressDialog關(guān)系類圖

dialog_uml_class_screenshot.png

Dialog

1. 圓形旋轉(zhuǎn)進度樣式

public Dialog createSpinnerDialog(Context context, String msg) {
    LayoutInflater inflater = LayoutInflater.from(context);
    View view = inflater.inflate(R.layout.spinner_style_dialog, null);

    LinearLayout linearLayout = (LinearLayout) view.findViewById(R.id.ll_spinner_dialog);
    ImageView imageView = (ImageView) view.findViewById(R.id.iv_spinner);
    TextView textView = (TextView) view.findViewById(R.id.tv_spinner);

    Animation animation = AnimationUtils.loadAnimation(context, R.anim.loading_animation);
    imageView.startAnimation(animation);

    textView.setText(msg);

    Dialog dialog = new Dialog(context, R.style.loading_dialog);
    dialog.setCancelable(true);         // 設(shè)置按返回鍵時取消對話框
    dialog.setCanceledOnTouchOutside(false);    // 設(shè)置點擊對話框外部時不取消對話框，默認為true
    dialog.setContentView(linearLayout, new LinearLayout.LayoutParams(
            LinearLayout.LayoutParams.MATCH_PARENT,
            LinearLayout.LayoutParams.MATCH_PARENT
    ));
    return dialog;
}

創(chuàng)建對話框并顯示

createSpinnerDialog(this, "正在加載中...").show();

效果演示

dialog_style_spinner.gif

2. 幀動畫進度樣式

public Dialog createFrameDialog(Context context, String msg){
    LayoutInflater inflater = LayoutInflater.from(context);
    View view = inflater.inflate(R.layout.frame_style_dialog, null);

    LinearLayout linearLayout = (LinearLayout) view.findViewById(R.id.ll_frame_dialog);
    ImageView imageView = (ImageView) view.findViewById(R.id.iv_frame);
    TextView textView = (TextView) view.findViewById(R.id.tv_frame);

    AnimationDrawable ad = (AnimationDrawable) imageView.getDrawable();
    ad.start();

    textView.setText(msg);

    Dialog dialog = new Dialog(context, R.style.loading_dialog);    //
    dialog.setCancelable(true);         // 設(shè)置按返回鍵時取消對話框
    dialog.setCanceledOnTouchOutside(false);    // 設(shè)置點擊對話框外部時不取消對話框，默認為true
    dialog.setContentView(linearLayout, new LinearLayout.LayoutParams(
            LinearLayout.LayoutParams.MATCH_PARENT,
            LinearLayout.LayoutParams.MATCH_PARENT
    ));
    return dialog;
}

創(chuàng)建對話框并顯示

createFrameDialog(this, "正在加載中...").show();

效果演示

dialog_style_frame.gif

AlertDialog

1. 提示對話框

private void showAlertDialog() {
    // 使用建造者模式創(chuàng)建對話框
    AlertDialog.Builder builder = new AlertDialog.Builder(this);
    builder.setIcon(R.drawable.ic_android_green_a700_24dp);     // 圖標
    builder.setTitle(R.string.text_alert_title);                // 標題
    builder.setMessage(R.string.text_alert_msg);                // 消息內(nèi)容
    // 確定性質(zhì)的按鈕 (是，有，確定)
    builder.setPositiveButton(R.string.text_alert_btn_positive, new DialogInterface.OnClickListener() {
        @Override
        public void onClick(DialogInterface dialog, int which) {
            Toast.makeText(MainActivity.this, R.string.text_alert_btn_positive_tip, Toast.LENGTH_SHORT).show();
        }
    });
    // 否定性質(zhì)的按鈕 (否，沒有，取消)
    builder.setNegativeButton(R.string.text_alert_btn_negative, new DialogInterface.OnClickListener() {
        @Override
        public void onClick(DialogInterface dialog, int which) {
            Toast.makeText(MainActivity.this, R.string.text_alert_btn_negative_tip, Toast.LENGTH_SHORT).show();
        }
    });
    // 中立性質(zhì)的按鈕 (不確定，沉默，保密，忽略，詳細)
    builder.setNeutralButton(R.string.text_alert_btn_neutral, new DialogInterface.OnClickListener() {
        @Override
        public void onClick(DialogInterface dialog, int which) {
            Toast.makeText(MainActivity.this, R.string.text_alert_btn_neutral_tip, Toast.LENGTH_SHORT).show();
        }
    });
    // 通過建造者來創(chuàng)建對話框
    AlertDialog dialog = builder.create();      // -
    // 顯示對話框
    dialog.show();                              // -

    // 直接使用建造者顯示對話框
    // builder.show();                             // +
}

效果演示

alert_dialog_alert.gif

2. 簡單列表對話框

private void showSimpleListDialog() {
    AlertDialog.Builder builder = new AlertDialog.Builder(this);
    // builder.setTitle(R.string.text_list_simple_title);
    final String[] platforms = getResources().getStringArray(R.array.platforms);
    // 設(shè)置簡單列表的子項內(nèi)容
    builder.setItems(platforms, new DialogInterface.OnClickListener() {
        @Override
        public void onClick(DialogInterface dialog, int which) {
            Toast.makeText(MainActivity.this, "Selected: " + platforms[which], Toast.LENGTH_SHORT).show();
        }
    });
    builder.show();
}

效果演示

alert_dialog_list_simple.gif

3. 單選列表對話框

private void showRadioListDialog() {
    AlertDialog.Builder builder = new AlertDialog.Builder(this);
    builder.setTitle(R.string.text_list_radio_title);
    final String[] cities = getResources().getStringArray(R.array.cities);
    int checkedItem = 0;
    final String[] result = {cities[checkedItem]};
    // 設(shè)置單選子項的內(nèi)容
    builder.setSingleChoiceItems(cities, checkedItem, new DialogInterface.OnClickListener() {
        @Override
        public void onClick(DialogInterface dialog, int which) {
            result[0] = cities[which];
        }
    });
    builder.setPositiveButton(R.string.text_list_radio_btn_positive, new DialogInterface.OnClickListener() {
        @Override
        public void onClick(DialogInterface dialog, int which) {
            Toast.makeText(MainActivity.this, "Selected: " + result[0], Toast.LENGTH_SHORT).show();
        }
    });
    builder.setNegativeButton(R.string.text_list_radio_btn_negative, new DialogInterface.OnClickListener() {
        @Override
        public void onClick(DialogInterface dialog, int which) {
            Toast.makeText(MainActivity.this, "Default: " + result[0], Toast.LENGTH_SHORT).show();
        }
    });
    builder.show();
}

效果演示

alert_dialog_list_radio.gif

4. 多選列表對話框

private void showCheckListDialog() {
    AlertDialog.Builder builder = new AlertDialog.Builder(this);
    builder.setTitle(R.string.text_list_check_title);
    final String[] languages = getResources().getStringArray(R.array.languages);
    final List<String> results = new ArrayList<>();
    // 設(shè)置多選子項內(nèi)容
    builder.setMultiChoiceItems(languages, null, new DialogInterface.OnMultiChoiceClickListener() {
        @Override
        public void onClick(DialogInterface dialog, int which, boolean isChecked) {
            if (isChecked) {
                results.add(languages[which]);
            } else {
                results.remove(languages[which]);
            }
        }
    });
    builder.setPositiveButton(R.string.text_list_check_btn_positive, new DialogInterface.OnClickListener() {
        @Override
        public void onClick(DialogInterface dialog, int which) {
            Toast.makeText(MainActivity.this, results.toString(), Toast.LENGTH_SHORT).show();
        }
    });
    builder.setNegativeButton(R.string.text_list_check_btn_negative, new DialogInterface.OnClickListener() {
        @Override
        public void onClick(DialogInterface dialog, int which) {
            Toast.makeText(MainActivity.this, R.string.text_list_check_btn_negative, Toast.LENGTH_SHORT).show();
            results.clear();
        }
    });
    builder.show();
}

效果演示

alert_dialog_list_check.gif

5. 自定義適配器對話框

private void showCustomAdapterDialog() {
    AlertDialog.Builder builder = new AlertDialog.Builder(this);

    final List<User> mUserList = new ArrayList<>();
    mUserList.add(new User(R.drawable.ic_user_avatar, "Stephen Curry"));
    mUserList.add(new User(R.drawable.ic_user_avatar, "Kevin Durant"));
    CustomAdapter adapter = new CustomAdapter(this, mUserList);
    // 設(shè)置自定義數(shù)據(jù)適配器，用于內(nèi)部的ListView
    builder.setAdapter(adapter, new DialogInterface.OnClickListener() {
        @Override
        public void onClick(DialogInterface dialog, int which) {
            Toast.makeText(MainActivity.this, "Selected: " + mUserList.get(which).getName(), Toast.LENGTH_SHORT).show();
        }
    });
    builder.show();
}

效果演示

alert_dialog_custom_adapter.gif

6. 自定義視圖對話框

private void showCustomViewDialog() {
    AlertDialog.Builder builder = new AlertDialog.Builder(this);
    builder.setIcon(R.drawable.ic_user_signin);
    builder.setTitle(R.string.text_custom_view_title);
    // builder.setView(R.layout.layout_signin);    // API21
    final View view = getLayoutInflater().inflate(R.layout.layout_signin, null);
    builder.setView(view);      // 設(shè)置自定義內(nèi)容視圖
    builder.setPositiveButton(R.string.text_custom_view_btn_positive, new DialogInterface.OnClickListener() {
        @Override
        public void onClick(DialogInterface dialog, int which) {
            EditText mUsernameEt = (EditText) view.findViewById(R.id.et_username);
            EditText mPasswordEt = (EditText) view.findViewById(R.id.et_password);
            String username = mUsernameEt.getText().toString();
            String password = mPasswordEt.getText().toString();
            String info = String.format(Locale.getDefault(), "[%s:%s]", username, password);
            Toast.makeText(MainActivity.this, info, Toast.LENGTH_SHORT).show();
        }
    });
    builder.setNegativeButton(R.string.text_custom_view_btn_negative, new DialogInterface.OnClickListener() {
        @Override
        public void onClick(DialogInterface dialog, int which) {
            Toast.makeText(MainActivity.this, R.string.text_custom_view_btn_negative, Toast.LENGTH_SHORT).show();
        }
    });
    builder.show();
}

效果演示

alert_dialog_custom_view.gif

ProgressDialog

ProgressDialog基本使用說明

1. 創(chuàng)建ProgressDialog的兩種方式

  • 使用new來創(chuàng)建一個ProgressDialog實例
ProgressDialog dialog = new ProgressDialog(this);
dialog.show();
  • 調(diào)用ProgressDialog中的靜態(tài)方法show()
ProgressDialog dialog = ProgressDialog.show(this, null, "正在加載...");

靜態(tài)方法show()的參數(shù)說明

public static ProgressDialog show(
    Context context,                // 上下文 
    CharSequence title,             // 標題
    CharSequence message,           // 消息內(nèi)容
    boolean indeterminate,          // 不確定性，false為不確定性樣式，true為確定性樣式
    boolean cancelable,             // 是否可以取消
    OnCancelListener cancelListener // 取消事件監(jiān)聽器
);

2. 取消ProgressDialog對話框
Dialog.cancel()和Dialog.dismiss()都可以刪除對話框，但是使用cancel()方法會在刪除對話框時回調(diào)DialogInterface.OnCancelListener監(jiān)聽器中的onCancel()方法，而dismiss()則不會進行回調(diào)。

3. 設(shè)置ProgressDialog進度條樣式

dialog.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);   // 設(shè)置水平進度條
dialog.setProgressStyle(ProgressDialog.STYLE_SPINNER);      // 設(shè)置圓形旋轉(zhuǎn)進度條

ProgressDialog使用示例

1. 圓形旋轉(zhuǎn)進度條

private void createIndeterminateProgressDialog() {
    final ProgressDialog dialog = ProgressDialog.show(this, null, "正在加載...");
    new Thread(new Runnable() {
        @Override
        public void run() {
            try {
                Thread.sleep(3000);
                dialog.dismiss();
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
        }
    }).start();
}

效果演示

progress_dialog_style_indeterminate.gif

2. 水平進度條

private void createDeterminateProgressDialog() {
    final ProgressDialog dialog = new ProgressDialog(this);
    dialog.setIcon(R.drawable.ic_action_download);  // 設(shè)置圖標
    dialog.setTitle("當前下載進度");          // 設(shè)置標題
    dialog.setMessage("正在加載中...");      // 設(shè)置消息內(nèi)容
    dialog.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);  // 設(shè)置水平進度條
    dialog.setMax(100);     // 設(shè)置最大進度值
    dialog.setCancelable(true);                 // 設(shè)置是否可以通過點擊Back鍵取消
    dialog.setCanceledOnTouchOutside(false);    // 設(shè)置在點擊Dialog外是否取消Dialog進度條
    dialog.setButton(DialogInterface.BUTTON_POSITIVE, "確定", new DialogInterface.OnClickListener() {
        @Override
        public void onClick(DialogInterface dialog, int which) {
            Toast.makeText(MainActivity.this, "確定", Toast.LENGTH_SHORT).show();
        }
    });
    dialog.setButton(DialogInterface.BUTTON_NEUTRAL, "忽略", new DialogInterface.OnClickListener() {
        @Override
        public void onClick(DialogInterface dialog, int which) {
            Toast.makeText(MainActivity.this, "忽略", Toast.LENGTH_SHORT).show();
        }
    });
    dialog.setButton(DialogInterface.BUTTON_NEGATIVE, "取消", new DialogInterface.OnClickListener() {
        @Override
        public void onClick(DialogInterface dialog, int which) {
            Toast.makeText(MainActivity.this, "取消", Toast.LENGTH_SHORT).show();
        }
    });
    // 按Back鍵事件監(jiān)聽
    dialog.setOnCancelListener(new DialogInterface.OnCancelListener() {
        @Override
        public void onCancel(DialogInterface dialog) {
            Toast.makeText(MainActivity.this, "Cancel", Toast.LENGTH_SHORT).show();
        }
    });
    dialog.show();

    new Thread(new Runnable() {
        @Override
        public void run() {
            int i = 0;
            while (i < 100) {
                try {
                    i += 5;
                    Thread.sleep(200);              // 5000ms
                    dialog.incrementProgressBy(5);  // 更新進度
                } catch (InterruptedException e) {
                    e.printStackTrace();
                }
            }
            try {
                Thread.sleep(200);
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
            dialog.dismiss();
        }
    }).start();
}

效果演示

progress_dialog_style_determinate.gif

源碼參考

Dialog

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