建设电商网站需要多少钱,家具网页设计素材,怎样做品牌推广,黑龙江网站建设公司当Android开发处理错误信息时#xff0c;经常会以Dialog的形式显示错误信息#xff0c;但是每次都new一个Dialog#xff0c;很麻烦#xff0c;也增加程序的开销#xff0c;所以今天就分享一种自定义单例AlertDialogpublic class AlertDialog {private static AlertDialog …当Android开发处理错误信息时经常会以Dialog的形式显示错误信息但是每次都new一个Dialog很麻烦也增加程序的开销所以今天就分享一种自定义单例AlertDialogpublic class AlertDialog {private static AlertDialog alertDialog null;private Context context;private Dialog dialog;private LinearLayout lLayout_bg;private TextView txt_title;private TextView txt_msg;private Button btn_neg;private Button btn_pos;private ImageView img_line;private Display display;private boolean showTitle false;private boolean showMsg false;private boolean showPosBtn false;private boolean showNegBtn false;public static AlertDialog getInstance(Context context){if (alertDialognull){synchronized (AlertDialog.class) {if (alertDialog null) {alertDialog new AlertDialog(context).builder();}}}return alertDialog;}public AlertDialog(Context context) {this.context context;WindowManager windowManager (WindowManager) context.getSystemService(Context.WINDOW_SERVICE);display windowManager.getDefaultDisplay();}public AlertDialog builder() {// 获取Dialog布局View view LayoutInflater.from(context).inflate(R.layout.view_alertdialog, null);// 获取自定义Dialog布局中的控件lLayout_bg (LinearLayout) view.findViewById(R.id.lLayout_bg);txt_title (TextView) view.findViewById(R.id.txt_title);txt_title.setVisibility(View.GONE);txt_msg (TextView) view.findViewById(R.id.txt_msg);txt_msg.setVisibility(View.GONE);btn_neg (Button) view.findViewById(R.id.btn_neg);btn_neg.setVisibility(View.GONE);btn_pos (Button) view.findViewById(R.id.btn_pos);btn_pos.setVisibility(View.GONE);img_line (ImageView) view.findViewById(R.id.img_line);img_line.setVisibility(View.GONE);// 定义Dialog布局和参数dialog new Dialog(context, R.style.AlertDialogStyle);dialog.setContentView(view);// 调整dialog背景大小lLayout_bg.setLayoutParams(new FrameLayout.LayoutParams((int) (display.getWidth() * 0.85), LayoutParams.WRAP_CONTENT));return this;}public AlertDialog setTitle(String title) {showTitle true;if (.equals(title)) {txt_title.setText(标题);} else {txt_title.setText(title);}return this;}public AlertDialog setMsg(String msg) {showMsg true;if (.equals(msg)) {txt_msg.setText(内容);} else {txt_msg.setText(msg);}return this;}public AlertDialog setMsg(int rId) {showMsg true;txt_msg.setText(rId);return this;}public AlertDialog setCancelable(boolean cancel) {dialog.setCancelable(cancel);return this;}public AlertDialog setPositiveButton(String text,final OnClickListener listener) {showPosBtn true;if (.equals(text)) {btn_pos.setText(确定);} else {btn_pos.setText(text);}btn_pos.setOnClickListener(new OnClickListener() {Overridepublic void onClick(View v) {if(listener!null) {listener.onClick(v);}dialog.dismiss();}});return this;}public AlertDialog setNegativeButton(String text,final OnClickListener listener) {showNegBtn true;if (.equals(text)) {btn_neg.setText(取消);} else {btn_neg.setText(text);}btn_neg.setOnClickListener(new OnClickListener() {Overridepublic void onClick(View v) {if(listener!null) {listener.onClick(v);}dialog.dismiss();}});return this;}private void setLayout() {if (!showTitle !showMsg) {txt_title.setText();txt_title.setVisibility(View.VISIBLE);}if (showTitle) {txt_title.setVisibility(View.VISIBLE);}if (showMsg) {txt_msg.setVisibility(View.VISIBLE);}if (!showPosBtn !showNegBtn) {btn_pos.setText(确定);btn_pos.setVisibility(View.VISIBLE);btn_pos.setBackgroundResource(R.drawable.alertdialog_single_selector);btn_pos.setOnClickListener(new OnClickListener() {Overridepublic void onClick(View v) {dialog.dismiss();}});}if (showPosBtn showNegBtn) {btn_pos.setVisibility(View.VISIBLE);btn_pos.setBackgroundResource(R.drawable.alertdialog_right_selector);btn_neg.setVisibility(View.VISIBLE);btn_neg.setBackgroundResource(R.drawable.alertdialog_left_selector);img_line.setVisibility(View.VISIBLE);}if (showPosBtn !showNegBtn) {btn_pos.setVisibility(View.VISIBLE);btn_pos.setBackgroundResource(R.drawable.alertdialog_single_selector);}if (!showPosBtn showNegBtn) {btn_neg.setVisibility(View.VISIBLE);btn_neg.setBackgroundResource(R.drawable.alertdialog_single_selector);}}public void show() {setLayout();dialog.show();}}布局文件view_alertdialog.xmlandroid:idid/lLayout_bgandroid:layout_widthmatch_parentandroid:layout_heightwrap_contentandroid:backgrounddrawable/alert_bgandroid:orientationverticalandroid:idid/txt_titleandroid:layout_widthmatch_parentandroid:layout_heightwrap_contentandroid:layout_marginLeft15dpandroid:layout_marginRight15dpandroid:layout_marginTop15dpandroid:gravitycenterandroid:text提示android:textColorcolor/blackandroid:textSize18dp /android:idid/txt_msgandroid:layout_widthmatch_parentandroid:layout_heightwrap_contentandroid:layout_marginLeft15dpandroid:layout_marginRight15dpandroid:layout_marginTop10dpandroid:layout_marginBottom10dpandroid:gravitycenterandroid:text您确定要退出吗android:textColorcolor/blackandroid:textSize16dp /android:layout_widthmatch_parentandroid:layout_height0.5dpandroid:layout_marginTop10dpandroid:backgroundcolor/alertdialog_line /android:layout_widthmatch_parentandroid:layout_heightwrap_contentandroid:orientationhorizontalandroid:idid/btn_negandroid:layout_widthwrap_contentandroid:layout_height43dpandroid:layout_weight1android:backgrounddrawable/alertdialog_left_selectorandroid:gravitycenterandroid:text确定android:textColorcolor/bigtextcolorandroid:textSize16sp /android:idid/img_lineandroid:layout_width0.5dpandroid:layout_height43dpandroid:backgroundcolor/alertdialog_line /android:idid/btn_posandroid:layout_widthwrap_contentandroid:layout_height43dpandroid:layout_weight1android:backgrounddrawable/alertdialog_right_selectorandroid:gravitycenterandroid:text取消android:textColorcolor/themecolorandroid:textSize16sp /效果显示以上就是本文的全部内容希望对大家的学习有所帮助也希望大家多多支持编程圈。
