当Android遇上设计模式之建造者(Builder)模式
public class AlertDialog2 {
protected int mIcon;
protected String mTitle;
protected String mCancelText;
protected String mConfirmText;
protected Context mCtx;
protected mClickListener;
private View mContentView;
private WindowManager mWindowManager;
private View mRootView;
public AlertDialog2(Context ctx) {
this.mCtx = ();
}
public interface OnDialogClickListener {
void onCancle();
void onConfirm(String content);
}
public void setIcon(int icon) {
this.mIcon = icon;
}
public void setTitle(String title) {
this.mTitle = title;
}
public void setContentView(View view) {
this.mContentView = view;
}
public void setClickButton(String confirmText, String cancelText, listener) {
this.mCancelText = cancelText;
this.mConfirmText = confirmText;
this.mClickListener = listener;
}
public void show() {
// 使用WindowManager添加View到Window
mWindowManager = (WindowManager) (Context.WINDOW_SERVICE);
params = new (.MATCH_PARENT
, .WRAP_CONTENT);
= .FLAG_NOT_TOUCH_MODAL
| .FLAG_NOT_FOCUSABLE;
= .TYPE_PHONE;
= 800;
= 600;
= ;
mRootView = (mCtx).inflate(.layout_dialog, null);
ImageView ivIcon = (ImageView) (.iv_dialog_icon);
(mIcon);
TextView tvTitle = (TextView) (.tv_dialog_title);
(mTitle);
LinearLayout contentLayout = (LinearLayout) (.llayout_content);
(mContentView);
Button btnCancel = (Button) (.btn_cancel);
(mCancelText);
(new () {
@Override
public void onClick(View v) {
if (mClickListener != null) {
();
}
dismiss();
}
});
Button btnConfirm = (Button) (.btn_confirm);
(mConfirmText);
(new () {
@Override
public void onClick(View v) {
if (mContentView instanceof TextView) {
if (mClickListener != null) {
((String) ((TextView) mContentView).getText());
}
}
dismiss();
}
});
(mRootView, params);
}
public void dismiss() {
if (mWindowManager != null) {
(mRootView);
}
}
/**
* 建造者，AlertDialog内部类
* 此处采用链式调用
*/
public static class Builder {
private Context mCtx;
private AlertDialog2 mDialog;
public Builder(Context ctx) {
this.mCtx = ctx;
mDialog = new AlertDialog2(mCtx);
}
public Builder setIcon(int id) {
(id);
return this;
}
public Builder setTitle(String title) {
(title);
return this;
}
public Builder setMessage(String[] content) {
if (content != null || > 0) {
TextView tv = new TextView(mCtx);
(content[0]);
(16);
(tv);
}
return this;
}
public Builder setOnDialogClickListener(String confirmText, String cancelText, listener) {
(confirmText, cancelText, listener);
return this;
}
public AlertDialog2 create() {
return mDialog;
}
}
}