鸿洋博客介绍：DialogFragment的基本使用

好处：

1：使用DialogFragment来管理对话框，当旋转屏幕和按下后退键时可以更好的管理其声明周期，它和Fragment有着基本一致的生命周期

2.DialogFragment也允许开发者把Dialog作为内嵌的组件进行重用，类似Fragment(可以在大屏幕和小屏幕显示出不同的效果)

使用方法:

Dialoger.build(getActivity())

.setContentText("你好防盗链发交电费")

.setContentTitle("标题")

.setNegativeBtn("重新认证", new Dialoger.OnNegativeListener() {

@Override public void onNegative(Dialog dialog) {

dialog.dismiss();

....

....

} })

.setPositiveBtn("确认", new Dialoger.OnPositiveListener() {

@Override public void onPositive(Dialog dialog) {

dialog.dismiss();

....//对应的操作

....

}

})

.dialoger.setOnCancelListener(new DialogInterface.OnCancelListener() {

@Override

public void onCancel(DialogInterface dialog) {

view.getViewActivity().finish();

}

}). show();

封装：既然DialogFragment比普通的dialog好这么多，岂有不封装哪来用的道理

使用DialogFragment至少需要实现onCreateView或者onCreateDIalog方法。onCreateView即使用定义的xml布局文件展示Dialog。onCreateDialog即利用AlertDialog或者Dialog创建出Dialog。下面的封装采用onCreateView的方式来封装

1.构建dialog 设置基本参数

public static Dialoger build(FragmentActivity activity, String transactionTag, Bundle args) {

Dialoger dialoger = new Dialoger();

dialoger.setActivity(activity);//设置传入的activity对象

dialoger.setTransactionTag(transactionTag);//设置的tag标志(和Fragment一样，便于利用tag获取当前的Activity对象，来传递数据)

dialoger.setArguments(args);//设置的bundle参数

dialoger.setCancelable(false);//初始化设置为不可点击

dialoger.setTheme(0);//设置没有主题

dialoger.setContentView(R.layout.dialog_default);//设置默认的dialog的View

return dialoger;

}

public static Dialoger build(FragmentActivity activity) {

return build(activity, Dialoger.class.getSimpleName(), null);

}

2.外界传入对应的参数 (标题，context 内容 定义的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.对传入进来的参数进行配置

@Nullable

@Override

public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {

getDialog().getWindow().setBackgroundDrawable(new ColorDrawable(Color.TRANSPARENT));//设置透明背景

return mContentView;

}

@Override

public void onViewCreated(View view, @Nullable Bundle savedInstanceState) {

if (mCancelListener != null) {//只有当设置了取消监听的时候，才可以设置取消

setCancelable(true);

}

//设置标题

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);

}

//设置内容

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);

}

//设置 确定 和 取消 按钮

View buttonPanel = view.findViewById(R.id.buttons_layout);

buttonPanel.setVisibility(View.GONE);

boolean negativeEnable = false;

boolean positiveEnable = false;

//如果有确定按钮 设置 ----->可点击 内容 监听

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);

}

}

//如果有取消按钮 设置 ----->可点击 内容 监听

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);

//设置布局的分割线 显示和隐藏

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.设置确定 取消按钮 和 取消监听

/**

* 确认

*

* @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;

}

/**

* 取消按钮(不是点击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;

}

//取消监听

public void setOnCancelListener(@Nullable DialogInterface.OnCancelListener listener) {

if (listener != null) {

mCancelListener = listener;

}

}

//调用dialog的取消

@Override

public void onCancel(DialogInterface dialog) {

super.onCancel(dialog);

if (mCancelListener != null) {

mCancelListener.onCancel(dialog);

}

}

5.传递 确认 取消 的点击事件来回调 第4条的监听

@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="确定"

android:textColor="#f73e3e"

android:textSize="16sp"/>

7.xml布局简单效果

Paste_Image.png

再来回顾下使用方法：采用的建造者模式

Dialoger.build(getActivity())

.setContentText("你好防盗链发交电费")

.setContentTitle("标题")

.setNegativeBtn("重新认证", new Dialoger.OnNegativeListener() {

@Override public void onNegative(Dialog dialog) {

dialog.dismiss();

....

....

} })

.setPositiveBtn("确认", new Dialoger.OnPositiveListener() {

@Override public void onPositive(Dialog dialog) {

dialog.dismiss();

....//对应的操作

....

}

})

.dialoger.setOnCancelListener(new DialogInterface.OnCancelListener() {

@Override

public void onCancel(DialogInterface dialog) {

view.getViewActivity().finish();

}

}). show();

over～