Android選擇彈窗(自定義可擴展)

CSDN上有篇Android滾輪時間選擇控件（可擴展自定義），閱讀量很高，看來大家對這塊的需要還是挺大的。版本迭代開發(fā)自測完，等待測試提bug。就抽空把項目需求，自己自定義的一個控件分享給需要的人。里面可以學習到Builder創(chuàng)建者模式，還有就是使用接口，一般新手可能不一定會使用。

先想吐槽一下，今天負能量有點多，端午想找人出去玩，都找不到，回家的回家，陪妹子的陪妹子。果然都是一伙重色輕友的人。我也得抓緊了。

好吧，進入正題。先來看看效果圖。

1.Hello World是一個TextView控件，用于顯示從彈窗選擇的內(nèi)容。里面控件的背景色，標題，文字大小顏色都可以自定義。實際項目中可以用于比如android長按的時候，彈出一些選擇的操作，還有就是一些金額選擇等等。

主界面
選擇彈窗
選擇結果
實際項目中

2.布局文件

3.主界面操作，簡書復制代碼不方便...格式排版有問題，我就直接上圖片。后面的demo里面會有代碼的。

4.重頭戲,選擇彈窗SelectDialog

packageandrew.selectdialogdemo;

importandroid.app.Activity;

importandroid.content.Context;

importandroid.graphics.Color;

importandroid.text.TextUtils;

importandroid.view.Gravity;

importandroid.view.View;

importandroid.view.View.OnClickListener;

importandroid.widget.Button;

importandroid.widget.LinearLayout;

importandroid.widget.LinearLayout.LayoutParams;

importandroid.widget.TextView;

importjava.util.ArrayList;

importjava.util.List;

/**

* 選擇彈框

* Created by liuhongxia on 2016/05/30

*/

public classSelectDialogextendsBaseNoticeWindowimplementsView.OnClickListener {

privateListmDataList=newArrayList(0);

privateContextmContext;

privateStringmTitleText=null;

private intmTitleBackgroundColor= -1;

private intmTitleTextColor= Color.WHITE;

private intmButtonColor= -1;

private intmTitleTextSize;

private intmButtonSize;

private intmLastButtonSize;

privateArrayListbuttonList=newArrayList();

public static classBuilder {

ContextmContext;

StringmTitleText=null;

intmTitleBackgroundColor= -1;

intmTitleTextColor= Color.WHITE;

intmButtonColor= -1;

intmTitleTextSize=18;

intmButtonSize=14;

intmLastButtonSize=17;

ListmDataList;

publicBuilder(Context context) {

mContext= context;

}

publicSelectDialogbuild() {

return newSelectDialog(this);

}

publicBuildersetTitleText(String title) {

if(TextUtils.isEmpty(title)) {

return null;

}

mTitleText= title;

return this;

}

publicBuildersetTitleBackground(intcolorResId){

mTitleBackgroundColor= colorResId;

return this;

}

publicBuildersetTitleTextColor(intcolorResId){

mTitleTextColor= colorResId;

return this;

}

publicBuildersetTitleTextSize(inttextSize){

mTitleTextSize= textSize;

return this;

}

publicBuildersetButtonColor(intbuttonColor) {

mButtonColor= buttonColor;

return this;

}

publicBuildersetButtonSize(intbuttonSize) {

mButtonSize= buttonSize;

return this;

}

publicBuildersetLastButtonSize(intbuttonSize) {

mLastButtonSize= buttonSize;

return this;

}

publicBuildersetDataList(List list) {

mDataList= list;

return this;

}

}

publicSelectDialog(Builder builder) {

mContext= builder.mContext;

mTitleText= builder.mTitleText;

mTitleBackgroundColor= builder.mTitleBackgroundColor;

mTitleTextColor= builder.mTitleTextColor;

mButtonColor= builder.mButtonColor;

mDataList= builder.mDataList;

mTitleTextSize= builder.mTitleTextSize;

mButtonSize= builder.mButtonSize;

mLastButtonSize= builder.mLastButtonSize;

init();

}

private voidinit(){

if(null==mDataList) {

return;

}

//頭部標題TextView

LayoutParams titleParams =newLayoutParams(

LayoutParams.MATCH_PARENT,ConvertUtils.dip2px(mContext,44));

TextView titleTextView =newTextView(mContext);

titleTextView.setLayoutParams(titleParams);

titleTextView.setBackgroundColor(mContext.getResources().getColor(R.color.topbar));

titleTextView.setTextColor(mTitleTextColor);

titleTextView.setText(mTitleText);

titleTextView.setTextSize(mTitleTextSize);

titleTextView.setGravity(Gravity.CENTER);

//用于添加button和textview的layout

LinearLayout layout =newLinearLayout(mContext);

LayoutParams layoutParams =newLayoutParams(

LayoutParams.MATCH_PARENT,LayoutParams.WRAP_CONTENT);

layoutParams.leftMargin= ConvertUtils.dip2px(mContext,50);

layoutParams.rightMargin= ConvertUtils.dip2px(mContext,50);

layout.setLayoutParams(layoutParams);

layout.setGravity(Gravity.CENTER);

layout.setOrientation(LinearLayout.VERTICAL);

layout.setBackgroundColor(mContext.getResources().getColor(R.color.white));

layout.addView(titleTextView);

//button的屬性

LayoutParams btnParams =newLayoutParams(

LayoutParams.MATCH_PARENT,ConvertUtils.dip2px(mContext,44));

btnParams.leftMargin= ConvertUtils.dip2px(mContext,15);

btnParams.rightMargin= ConvertUtils.dip2px(mContext,15);

//主Layout

LinearLayout mainLayout =newLinearLayout(mContext);

LayoutParams mainLayoutParams =newLayoutParams(

LayoutParams.MATCH_PARENT,mContext.getResources().getDisplayMetrics().heightPixels);

mainLayout.setLayoutParams(mainLayoutParams);

mainLayout.setGravity(Gravity.CENTER);

mainLayout.setOrientation(LinearLayout.VERTICAL);

mainLayout.setBackgroundColor(mContext.getResources().getColor(R.color.alpha50));

//textView的屬性

LayoutParams textParams =newLayoutParams(

LayoutParams.MATCH_PARENT,ConvertUtils.dip2px(mContext,1));

textParams.leftMargin= ConvertUtils.dip2px(mContext,15);

textParams.rightMargin= ConvertUtils.dip2px(mContext,15);

intsize =mDataList.size();

for(inti =0;i < size +1;i++) {

Button tDiscardBtn =newButton(mContext);

buttonList.add(tDiscardBtn);

tDiscardBtn.setLayoutParams(btnParams);

tDiscardBtn.setGravity(Gravity.CENTER);

if(i == size) {

tDiscardBtn.setText("取消");

tDiscardBtn.setTextSize(mLastButtonSize);

tDiscardBtn.setBackgroundColor(mContext.getResources().getColor(R.color.white));

tDiscardBtn.setTextColor(mContext.getResources().getColor(R.color.topbar));

}else{

tDiscardBtn.setText(mDataList.get(i));

tDiscardBtn.setTextSize(mButtonSize);

tDiscardBtn.setBackgroundColor(mContext.getResources().getColor(R.color.white));

tDiscardBtn.setTextColor(mButtonColor);

tDiscardBtn.setTag(i);

}

tDiscardBtn.setOnClickListener(this);

tDiscardBtn.setGravity(Gravity.CENTER);

TextView textView =newTextView(mContext);

textView.setBackgroundColor(mContext.getResources().getColor(R.color.line));

textView.setLayoutParams(textParams);

layout.addView(tDiscardBtn);

//去掉最后一行的線

if(i != size) {

layout.addView(textView);

}

}

mainLayout.addView(layout);

//設置按鈕的屬性

//? ? ? ? setAllButtonStyle();

this.setContentView(mainLayout);

this.setWidth(mContext.getResources().getDisplayMetrics().widthPixels);

this.setHeight(mContext.getResources().getDisplayMetrics().heightPixels);

//? ? ? ? this.setAnimationStyle(R.style.menu_dialog_animation);

this.setOutsideTouchable(true);

mainLayout.setOnClickListener(newOnClickListener() {

@Override

public voidonClick(View view) {

Dismiss(view,BaseNoticeWindow.TYPE_DISMISS_NORMAL);

}

});

}

public voidshow(View parent) {

if(!((Activity)mContext).isFinishing()) {

this.showAtLocation(parent,Gravity.CENTER,0,0);

}

}

public voidsetAllButtonTextColor(intcolorId) {

for(Button button :buttonList) {

button.setTextColor(colorId);

}

}

/**

* 設置button的樣式

*/

public voidsetAllButtonStyle() {

for(Button button :buttonList) {

button.setTextSize(14);

button.setBackgroundColor(mContext.getResources().getColor(R.color.white));

button.setTextColor(mContext.getResources().getColor(R.color.text_10));

}

}

@Override

public voidonClick(View v) {

if(mListener==null) {

dismiss();

return;

}

if(v.getTag() !=null) {

mListener.onSureListener(v);

}else{

mListener.onDiscardListener(v);

}

Dismiss(v,BaseNoticeWindow.TYPE_DISMISS_BUTTON);

}

private voidDismiss(View v, intnType) {

if(null!=mListener) {

mListener.onDismissListener(v,nType);

}

dismiss();

}

}

5.總結

對于在代碼里面寫view，可能有些新手會覺得看上去有點吃力，最簡單直接的方法就是，把代碼里的view弄成xml布局，這樣就會更加方便直接。


轉(zhuǎn)載請注明轉(zhuǎn)自：http://www.itdecent.cn/p/874a8736cbd0

csdn博客：http://blog.csdn.net/u011176685/article/details/51546404

demo下載地址：http://download.csdn.net/detail/u011176685/9536658?

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