ChosePictureDialog.java

package com.jiuqi.njt.widget;

import android.app.Dialog;
import android.content.Context;
import android.content.DialogInterface;
import android.view.Gravity;
import android.view.LayoutInflater;
import android.view.View;
import android.view.WindowManager;
import android.view.ViewGroup.LayoutParams;
import android.widget.Button;

import com.jiuqi.njt.R;
/**
 * 自定义选择图片对话框
 * 样式是圆角（有三个按钮）
 * @author qyd
 *
 */
public class ChosePictureDialog extends Dialog {

	public ChosePictureDialog(Context context) {
		super(context);
	}

	public ChosePictureDialog(Context context, int theme) {
		super(context, theme);
	}

	public static class Builder {
		private Context context;

		private String chosePictureFromPhoneButtonText;
		private String chosePictureFromCameraButtonText;
		private String chosePictureCancelButtonText;
		private View contentView;

		private DialogInterface.OnClickListener chosePictureFromPhoneButtonClickListener;
		private DialogInterface.OnClickListener chosePictureFromCameraButtonClickListener;
		private DialogInterface.OnClickListener chosePictureCancelButtonClickListener;

		public Builder(Context context) {
			this.context = context;
		}

		public Builder setContentView(View v) {
			this.contentView = v;
			return this;
		}

		/**
		 * 设置 对话框按钮点击事件
		 * 
		 * @param positiveButtonText
		 * @return
		 */
		public Builder setChosePictureFromPhoneButton(
				String chosePictureFromPhoneButtonText,
				DialogInterface.OnClickListener listener) {
			this.chosePictureFromPhoneButtonText =chosePictureFromPhoneButtonText;
			this.chosePictureFromPhoneButtonClickListener = listener;
			return this;
		}

		public Builder setChosePictureFromCameraButton(
				String chosePictureFromCameraButtonText,
				DialogInterface.OnClickListener listener) {
			this.chosePictureFromCameraButtonText =chosePictureFromCameraButtonText;
			this.chosePictureFromCameraButtonClickListener = listener;
			return this;
		}

		public Builder setChosePictureCancelButton(
				String chosePictureCancelButtonText,
				DialogInterface.OnClickListener listener) {
			this.chosePictureCancelButtonText =chosePictureCancelButtonText;
			this.chosePictureCancelButtonClickListener = listener;
			return this;
		}

	private boolean  dialogGravity  =true;
	
		public void setDialogGravity(boolean dialogGravity) {
		this.dialogGravity = dialogGravity;
	}

		public MyAlertDialog create() {
			LayoutInflater inflater = (LayoutInflater) context
					.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
			// instantiate the dialog with the custom Theme
			final MyAlertDialog dialog = new MyAlertDialog(context,
					R.style.Dialog_new_new);
			View layout = inflater.inflate(R.layout.chose_picture_dialog_layout, null);
			dialog.addContentView(layout, new LayoutParams(
					LayoutParams.FILL_PARENT, LayoutParams.WRAP_CONTENT));

			((Button) layout.findViewById(R.id.chosePictureFromPhone))
					.setText(chosePictureFromPhoneButtonText);
			if (chosePictureFromPhoneButtonClickListener != null) {
				((Button) layout.findViewById(R.id.chosePictureFromPhone))
						.setOnClickListener(new View.OnClickListener() {
							public void onClick(View v) {
								chosePictureFromPhoneButtonClickListener.onClick(dialog,
										DialogInterface.BUTTON_POSITIVE);
							}
						});
			}

			((Button) layout.findViewById(R.id.chosePictureFromCamera))
					.setText(chosePictureFromCameraButtonText);
			if (chosePictureFromCameraButtonClickListener != null) {
				((Button) layout.findViewById(R.id.chosePictureFromCamera))
						.setOnClickListener(new View.OnClickListener() {
							public void onClick(View v) {
								chosePictureFromCameraButtonClickListener.onClick(dialog,
										DialogInterface.BUTTON_NEGATIVE);
							}
						});
			}

			((Button) layout.findViewById(R.id.chosePictureCancel))
					.setText(chosePictureCancelButtonText);
			if (chosePictureCancelButtonClickListener != null) {
				((Button) layout.findViewById(R.id.chosePictureCancel))
						.setOnClickListener(new View.OnClickListener() {
							public void onClick(View v) {
								chosePictureCancelButtonClickListener.onClick(dialog,
										DialogInterface.BUTTON_NEGATIVE);
							}
						});
			}
			dialog.setContentView(layout);
			if(dialogGravity){
				dialog.getWindow().setGravity(Gravity.BOTTOM);
			}
			WindowManager.LayoutParams lp = dialog.getWindow().getAttributes();
			lp.dimAmount = 0.6f;
			dialog.getWindow().setAttributes(lp);
			dialog.getWindow().addFlags(
					WindowManager.LayoutParams.FLAG_DIM_BEHIND);
			return dialog;
		}

	}
}