android 基类fragment,Android DialogFragment 基类的定制
鴻洋博客介紹：DialogFragment的基本使用
好處：
1：使用DialogFragment來管理對話框，當旋轉屏幕和按下后退鍵時可以更好的管理其聲明周期，它和Fragment有著基本一致的生命周期
2.DialogFragment也允許開發者把Dialog作為內嵌的組件進行重用，類似Fragment(可以在大屏幕和小屏幕顯示出不同的效果)
使用方法:
Dialoger.build(getActivity())
.setContentText("你好防盜鏈發交電費")
.setContentTitle("標題")
.setNegativeBtn("重新認證", new Dialoger.OnNegativeListener() {
@Override public void onNegative(Dialog dialog) {
dialog.dismiss();
....
....
} })
.setPositiveBtn("確認", new Dialoger.OnPositiveListener() {
@Override public void onPositive(Dialog dialog) {
dialog.dismiss();
....//對應的操作
....
}
})
.dialoger.setOnCancelListener(new DialogInterface.OnCancelListener() {
@Override
public void onCancel(DialogInterface dialog) {
view.getViewActivity().finish();
}
}). show();
封裝：既然DialogFragment比普通的dialog好這么多，豈有不封裝哪來用的道理
使用DialogFragment至少需要實現onCreateView或者onCreateDIalog方法。onCreateView即使用定義的xml布局文件展示Dialog。onCreateDialog即利用AlertDialog或者Dialog創建出Dialog。下面的封裝采用onCreateView的方式來封裝
1.構建dialog 設置基本參數
public static Dialoger build(FragmentActivity activity, String transactionTag, Bundle args) {
Dialoger dialoger = new Dialoger();
dialoger.setActivity(activity);//設置傳入的activity對象
dialoger.setTransactionTag(transactionTag);//設置的tag標志(和Fragment一樣，便于利用tag獲取當前的Activity對象，來傳遞數據)
dialoger.setArguments(args);//設置的bundle參數
dialoger.setCancelable(false);//初始化設置為不可點擊
dialoger.setTheme(0);//設置沒有主題
dialoger.setContentView(R.layout.dialog_default);//設置默認的dialog的View
return dialoger;
}
public static Dialoger build(FragmentActivity activity) {
return build(activity, Dialoger.class.getSimpleName(), null);
}
2.外界傳入對應的參數 (標題，context 內容 定義的View)
private void setActivity(FragmentActivity mActivity) {
this.mActivity = mActivity;
}
private void setTransactionTag(String transactionTag) {
this.mTransactionTag = transactionTag;
}
public Dialoger setContentView(int layoutResID) {
this.mContentView = LayoutInflater.from(mActivity).inflate(layoutResID, null);
return this;
}
public Dialoger setContentView(View view) {
this.mContentView = view;
return this;
}
public Dialoger setTheme(int theme) {
setStyle(DialogFragment.STYLE_NO_TITLE, theme);
return this;
}
public Dialoger setContentTitle(String title) {
mContentTitle = title;
return this;
}
public Dialoger setContentText(String text) {
mContentText = text;
return this;
}
public Dialoger setContentTitle(String title, int titleColor) {
mContentTitle = title;
mContentTitleColor = titleColor;
return this;
}
public Dialoger setContentText(String text, int textColor) {
mContentText = text;
mContentTextColor = textColor;
return this;
}
3.對傳入進來的參數進行配置
@Nullable
@Override
public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
getDialog().getWindow().setBackgroundDrawable(new ColorDrawable(Color.TRANSPARENT));//設置透明背景
return mContentView;
}
@Override
public void onViewCreated(View view, @Nullable Bundle savedInstanceState) {
if (mCancelListener != null) {//只有當設置了取消監聽的時候，才可以設置取消
setCancelable(true);
}
//設置標題
TextView mTitleView = (TextView) view.findViewById(R.id.dialog_title_tv);
if (!TextUtils.isEmpty(mContentTitle)) {
mTitleView.setText(mContentTitle);
if (mContentTitleColor != 0) {
mTitleView.setTextColor(mContentTitleColor);
}
} else {
mTitleView.setVisibility(View.GONE);
}
//設置內容
TextView mTextView = (TextView) view.findViewById(R.id.dialog_text_tv);
if (!TextUtils.isEmpty(mContentText)) {
mTextView.setText(mContentText);
if (mContentTextColor != 0) {
mTextView.setTextColor(mContentTextColor);
}
} else {
mTextView.setVisibility(View.GONE);
}
//設置 確定 和 取消 按鈕
View buttonPanel = view.findViewById(R.id.buttons_layout);
buttonPanel.setVisibility(View.GONE);
boolean negativeEnable = false;
boolean positiveEnable = false;
//如果有確定按鈕 設置 ----->可點擊 內容 監聽
Button negativeButton = (Button) view.findViewById(R.id.btn_negative);
if (TextUtils.isEmpty(mNegativeText)) {
negativeButton.setVisibility(View.GONE);
} else {
negativeEnable = true;
buttonPanel.setVisibility(View.VISIBLE);
negativeButton.setVisibility(View.VISIBLE);
negativeButton.setText(mNegativeText);
negativeButton.setOnClickListener(this);
if (mNegativeTextColor != 0) {
negativeButton.setTextColor(mNegativeTextColor);
}
}
//如果有取消按鈕 設置 ----->可點擊 內容 監聽
Button positiveButton = (Button) view.findViewById(R.id.btn_positive);
if (TextUtils.isEmpty(mPositiveText)) {
positiveButton.setVisibility(View.GONE);
} else {
positiveEnable = true;
buttonPanel.setVisibility(View.VISIBLE);
positiveButton.setVisibility(View.VISIBLE);
positiveButton.setText(mPositiveText);
positiveButton.setOnClickListener(this);
if (mPositiveTextColor != 0) {
positiveButton.setTextColor(mPositiveTextColor);
}
}
View contentDivider = view.findViewById(R.id.horizontal_divider);
View buttonDivider = view.findViewById(R.id.vertical_divider);
//設置布局的分割線 顯示和隱藏
if (positiveEnable) {
if (negativeEnable) {
contentDivider.setVisibility(View.VISIBLE);
buttonDivider.setVisibility(View.VISIBLE);
} else {
contentDivider.setVisibility(View.GONE);
buttonDivider.setVisibility(View.GONE);
}
buttonPanel.setVisibility(View.VISIBLE);
} else {
if (negativeEnable) {
contentDivider.setVisibility(View.VISIBLE);
buttonPanel.setVisibility(View.VISIBLE);
buttonDivider.setVisibility(View.GONE);
} else {
contentDivider.setVisibility(View.GONE);
}
}
}
4.設置確定 取消按鈕 和 取消監聽
/**
* 確認
*
* @param text
* @param listener
* @return
*/
public Dialoger setPositiveBtn(String text, OnPositiveListener listener) {
mPositiveText = text;
mPositiveListener = listener;
return this;
}
public Dialoger setPositiveColor(int textColor) {
mPositiveTextColor = textColor;
return this;
}
/**
* 取消按鈕(不是點擊dialog其他地方的取消)
*
* @param text
* @param listener
* @return
*/
public Dialoger setNegativeBtn(String text, OnNegativeListener listener) {
mNegativeText = text;
mNegativeListener = listener;
return this;
}
public Dialoger setNegativeColor(int textColor) {
mNegativeTextColor = textColor;
return this;
}
//取消監聽
public void setOnCancelListener(@Nullable DialogInterface.OnCancelListener listener) {
if (listener != null) {
mCancelListener = listener;
}
}
//調用dialog的取消
@Override
public void onCancel(DialogInterface dialog) {
super.onCancel(dialog);
if (mCancelListener != null) {
mCancelListener.onCancel(dialog);
}
}
5.傳遞 確認 取消 的點擊事件來回調 第4條的監聽
@Override
public void onClick(View v) {
if (v.getId() == R.id.btn_negative) {
if (mNegativeListener != null) mNegativeListener.onNegative(getDialog());
} else if (v.getId() == R.id.btn_positive) {
if (mPositiveListener != null) mPositiveListener.onPositive(getDialog());
}
}
6.xml布局
style="@style/DT_DIALOG_THEME"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:layout_margin="30dip"
android:background="@drawable/dialog_bg_color"
android:minWidth="270dp"
android:orientation="vertical">
android:id="@+id/dialog_title_tv"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:layout_marginTop="20dp"
android:gravity="center_horizontal"
android:text="提示"
android:textColor="#333333"
android:textSize="18sp"/>
android:id="@+id/dialog_text_tv"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginBottom="20dp"
android:layout_marginTop="30dp"
android:gravity="center"
android:paddingLeft="20dp"
android:paddingRight="20dp"
android:text="提示"
android:textColor="#686871"
android:textSize="16sp"/>
android:id="@+id/horizontal_divider"
style="@style/horizontal_divider"/>
android:id="@+id/buttons_layout"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal">
android:id="@+id/btn_negative"
android:layout_width="0dip"
android:layout_height="44dip"
android:layout_weight="1"
android:background="@android:color/transparent"
android:gravity="center"
android:paddingTop="2dip"
android:text="取消"
android:textColor="#8e8e9c"
android:textSize="17sp"/>
android:id="@+id/vertical_divider"
style="@style/vertical_divider"/>
android:id="@+id/btn_positive"
android:layout_width="0dip"
android:layout_height="44dip"
android:layout_weight="1"
android:background="@android:color/transparent"
android:gravity="center"
android:paddingTop="2dip"
android:text="確定"
android:textColor="#f73e3e"
android:textSize="16sp"/>
7.xml布局簡單效果
Paste_Image.png
再來回顧下使用方法：采用的建造者模式
Dialoger.build(getActivity())
.setContentText("你好防盜鏈發交電費")
.setContentTitle("標題")
.setNegativeBtn("重新認證", new Dialoger.OnNegativeListener() {
@Override public void onNegative(Dialog dialog) {
dialog.dismiss();
....
....
} })
.setPositiveBtn("確認", new Dialoger.OnPositiveListener() {
@Override public void onPositive(Dialog dialog) {
dialog.dismiss();
....//對應的操作
....
}
})
.dialoger.setOnCancelListener(new DialogInterface.OnCancelListener() {
@Override
public void onCancel(DialogInterface dialog) {
view.getViewActivity().finish();
}
}). show();
over～
總結
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