Android本身提供了很多Dialog对话框，比如AlertDialog、ProgressDialog，基本上已经包含了普通（包含提示消息和按钮）、列表、单选、多选、等待、进度条、编辑、自定义等多种对话框形式，那么我们为什么还要大费周章的来自定义Dialog对话框呢？在这个“看脸”越来越严重的社会，大家觉得Android自带的Dialog不好看，或者自带的Dialog布局颜色等风格与系统的整体风格不搭，所以种种原因导致我们还是需要自定义Dialog。
自定义Dialog方法一
先上XML布局：
看下XML编辑器中预览出来的效果吧
界面写好了，下面看代码部分，先讲第一种实现方式（比较挫一点的），继承Dialog类，实现相应的方法。
/**
* Created by alany on 2017/4/12.
*/
public class CustomDialog extends Dialog {
private Context context;
private String title = "";
private String message = "";
private String confirmBtnText = "";
private String cancelBtnText = "";
private ClickListenerInterface clickListenerInterface;
public interface ClickListenerInterface {
void doConfirm();
void doCancel();
}
public CustomDialog(Context context, String title, String message) {
super(context, R.style.MyDialogStyle);
this.context = context;
this.title = title;
this.message = message;
}
public CustomDialog(Context context, String title, String message, String confirmBtnText, String cancelBtnText) {
this(context,title,message);
this.confirmBtnText = confirmBtnText;
this.cancelBtnText = cancelBtnText;
}
@Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
init();
}
public void init() {
LayoutInflater inflater = LayoutInflater.from(context);
View view = inflater.inflate(R.layout.my_info_dialog, null);
setContentView(view);
TextView tvTitle = (TextView) view.findViewById(R.id.title);
TextView tvMessage = (TextView) view.findViewById(R.id.message);
Button btnConfirm = (Button) view.findViewById(R.id.confirm);
Button btnCancel = (Button) view.findViewById(R.id.cancel);
tvTitle.setText(title);
tvMessage.setText(message);
if(! confirmBtnText.isEmpty() && ! cancelBtnText.isEmpty()) {
btnConfirm.setText(confirmBtnText);
btnCancel.setText(cancelBtnText);
}
btnConfirm.setOnClickListener(new CustomDialogClickListener());
btnCancel.setOnClickListener(new CustomDialogClickListener());
Window dialogWindow = getWindow();
WindowManager.LayoutParams lp = dialogWindow.getAttributes();
DisplayMetrics d = context.getResources().getDisplayMetrics(); // 获取屏幕宽、高用
lp.width = (int) (d.widthPixels * 0.8); // 高度设置为屏幕的0.6
dialogWindow.setAttributes(lp);
}
public void setClicklistener(ClickListenerInterface clickListenerInterface) {
this.clickListenerInterface = clickListenerInterface;
}
private class CustomDialogClickListener implements View.OnClickListener {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
int id = v.getId();
switch (id) {
case R.id.confirm:
clickListenerInterface.doConfirm();
break;
case R.id.cancel:
clickListenerInterface.doCancel();
break;
}
}
};
}
自定义Dialog写好之后，下面在Activity中使用：
final CustomDialog confirmDialog = new CustomDialog(DataAdmin.this, "备份提示", "该操作会覆盖已有备份数据，是否确认备份？");
confirmDialog.show();
confirmDialog.setClicklistener(new CustomDialog.ClickListenerInterface() {
@Override
public void doConfirm() {
// TODO Auto-generated method stub
confirmDialog.dismiss();
try {
backupFile.createNewFile();
fileCopy(dbFile, backupFile);
status = BACKUP_SUCCESS;
} catch (Exception e) {
e.printStackTrace();
faildError = e.getMessage();
status = BACKUP_ERROR;
}
freshUI(status);
}
@Override
public void doCancel() {
// TODO Auto-generated method stub
confirmDialog.dismiss();
}
});
看下效果：
这样写感觉还不够好，没有充分发挥java语言的优势，所以我准备的方法二
自定义Dialog方法二
布局就都一样了，主要是对CustomDialog类的修改，使其尽量靠近Android 自身的AlertDialog的使用习惯，还增加了setView 方法，可以再加入一些个性化的View，看代码吧：
/**
* Created by alany on 2017/4/12.
*/
public class CustomDialog1 extends Dialog {
private Context context;
private String title = "";
private String message = "";
private View customView;
private String confirmBtnText = "";
private String cancelBtnText = "";
private OnConfirmClickListener onConfirmClickListener;
private OnCancelClickListener onCancelClickListener;
public interface OnConfirmClickListener{
void doConfirm();
}
public interface OnCancelClickListener{
void doCancel();
}
public CustomDialog1(Context context){
super(context, R.style.MyDialogStyle);
this.context = context;
}
public CustomDialog1 setTitle(String title){
this.title = title;
return this;
}
public CustomDialog1 setMessage(String message){
this.message = message;
return this;
}
public CustomDialog1 setView(View customView){
this.customView = customView;
return this;
}
public CustomDialog1 setConfirmButton(String text, OnConfirmClickListener onClickListener){
this.confirmBtnText = text;
this.onConfirmClickListener = onClickListener;
return this;
}
public CustomDialog1 setCancelButton(String text, OnCancelClickListener onClickListener){
this.cancelBtnText = text;
this.onCancelClickListener = onClickListener;
return this;
}
@Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
init();
}
public void init() {
LayoutInflater inflater = LayoutInflater.from(context);
View view = inflater.inflate(R.layout.my_info_dialog, null);
setContentView(view);
LinearLayout container = (LinearLayout) view.findViewById(R.id.llcontainer);
if(customView != null){
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN) {
container.addView(customView);
}
}
TextView tvTitle = (TextView) view.findViewById(R.id.title);
TextView tvMessage = (TextView) view.findViewById(R.id.message);
Button btnConfirm = (Button) view.findViewById(R.id.confirm);
Button btnCancel = (Button) view.findViewById(R.id.cancel);
tvTitle.setText(TextUtils.isEmpty(title) ? "提示" : title);
if(TextUtils.isEmpty(message)) {
tvMessage.setVisibility(View.GONE);
}else{
tvMessage.setText(message);
}
if(! TextUtils.isEmpty(confirmBtnText) && ! TextUtils.isEmpty(cancelBtnText)) {
btnConfirm.setText(confirmBtnText);
btnCancel.setText(cancelBtnText);
}
btnConfirm.setOnClickListener(new CustomDialogClickListener());
btnCancel.setOnClickListener(new CustomDialogClickListener());
Window dialogWindow = getWindow();
WindowManager.LayoutParams lp = dialogWindow.getAttributes();
DisplayMetrics d = context.getResources().getDisplayMetrics(); // 获取屏幕宽、高用
lp.width = (int) (d.widthPixels * 0.8); // 高度设置为屏幕的0.6
dialogWindow.setAttributes(lp);
}
private class CustomDialogClickListener implements View.OnClickListener{
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
int id = v.getId();
switch (id) {
case R.id.confirm:
onBackPressed();
if(onConfirmClickListener != null){
onConfirmClickListener.doConfirm();
}
break;
case R.id.cancel:
onBackPressed();
if(onCancelClickListener != null){
onCancelClickListener.doCancel();
}
break;
}
}
};
}
一样的，看下修改后的CustomDialog的用法，是不是跟AlertDialog很类似？
dt="新增账户类型";
final View view = View.inflate(mContext, R.layout.account_edit, null);
final EditText etName = (EditText) view.findViewById(R.id.et_account_name);
final EditText etMoney = (EditText) view.findViewById(R.id.et_account_money);
etName.setTextSize(16);
etMoney.setTextSize(16);
new CustomDialog1(mContext).setTitle(dt).setView(view).setConfirmButton("确定", new CustomDialog1.OnConfirmClickListener() {
@Override
public void doConfirm() {
//点击确定按钮的实现
}).setCancelButton("取消",null).show();
也看下实际效果：
好了，源码几乎都贴在上面了，需要的童鞋直接引用吧，非Android开发专业选手，有不妥之处烦请指正，感谢~
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