先上效果图
2、编写布局
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical"
android:padding="8dp" >
android:id="@+id/txt_title"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="@drawable/actionsheet_top_normal"
android:gravity="center"
android:minHeight="45dp"
android:paddingTop="10dp"
android:paddingBottom="10dp"
android:paddingLeft="15dp"
android:paddingRight="15dp"
android:textColor="@color/actionsheet_gray"
android:textSize="13sp"
android:visibility="gone" />
android:id="@+id/sLayout_content"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:fadingEdge="none"
>
android:id="@+id/lLayout_content"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical" >
android:id="@+id/txt_cancel"
android:layout_width="match_parent"
android:layout_height="45dp"
android:layout_marginTop="8dp"
android:background="@drawable/alertdialog_single_selector"
android:gravity="center"
android:text="取消"
android:textColor="#037BFF"
android:textSize="18sp"
android:textStyle="bold" />
3、主要代码
package com.luobo.app.widget;
import java.util.ArrayList;
import java.util.List;
import com.luobo.app.R;
import android.app.Dialog;
import android.content.Context;
import android.graphics.Color;
import android.view.Display;
import android.view.Gravity;
import android.view.LayoutInflater;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.Window;
import android.view.WindowManager;
import android.widget.LinearLayout;
import android.widget.LinearLayout.LayoutParams;
import android.widget.ScrollView;
import android.widget.TextView;
public class ActionSheetDialog {
private Context context;
private Dialog dialog;
private TextView txt_title;
private TextView txt_cancel;
private LinearLayout lLayout_content;
private ScrollView sLayout_content;
private boolean showTitle = false;
private List sheetItemList;
private Display display;
public ActionSheetDialog(Context context) {
this.context = context;
WindowManager windowManager = (WindowManager) context
.getSystemService(Context.WINDOW_SERVICE);
display = windowManager.getDefaultDisplay();
}
public ActionSheetDialog builder() {
// 获取Dialog布局
View view = LayoutInflater.from(context).inflate(
R.layout.view_actionsheet, null);
// 设置Dialog最小宽度为屏幕宽度
view.setMinimumWidth(display.getWidth());
// 获取自定义Dialog布局中的控件
sLayout_content = (ScrollView) view.findViewById(R.id.sLayout_content);
lLayout_content = (LinearLayout) view
.findViewById(R.id.lLayout_content);
txt_title = (TextView) view.findViewById(R.id.txt_title);
txt_cancel = (TextView) view.findViewById(R.id.txt_cancel);
txt_cancel.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
//dialog.dismiss();
}
});
// 定义Dialog布局和参数
dialog = new Dialog(context, R.style.ActionSheetDialogStyle);
dialog.setContentView(view);
Window dialogWindow = dialog.getWindow();
dialogWindow.setGravity(Gravity.LEFT | Gravity.BOTTOM);
WindowManager.LayoutParams lp = dialogWindow.getAttributes();
lp.x = 0;
lp.y = 0;
dialogWindow.setAttributes(lp);
return this;
}
public ActionSheetDialog setTitle(String title) {
showTitle = true;
txt_title.setVisibility(View.VISIBLE);
txt_title.setText(title);
return this;
}
public ActionSheetDialog setCancelable(boolean cancel) {
dialog.setCancelable(cancel);
return this;
}
public ActionSheetDialog setCanceledOnTouchOutside(boolean cancel) {
dialog.setCanceledOnTouchOutside(cancel);
return this;
}
/**
*
* @param strItem
* 条目名称
* @param color
* 条目字体颜色，设置null则默认蓝色
* @param listener
* @return
*/
public ActionSheetDialog addSheetItem(String strItem, SheetItemColor color,
OnSheetItemClickListener listener) {
if (sheetItemList == null) {
sheetItemList = new ArrayList();
}
sheetItemList.add(new SheetItem(strItem, color, listener));
return this;
}
/** 设置条目布局 */
private void setSheetItems() {
if (sheetItemList == null || sheetItemList.size() <= 0) {
return;
}
int size = sheetItemList.size();
// TODO 高度控制，非最佳解决办法
// 添加条目过多的时候控制高度
if (size >= 7) {
LinearLayout.LayoutParams params = (LayoutParams) sLayout_content
.getLayoutParams();
params.height = display.getHeight() / 2;
sLayout_content.setLayoutParams(params);
}
// 循环添加条目
for (int i = 1; i <= size; i++) {
final int index = i;
SheetItem sheetItem = sheetItemList.get(i - 1);
String strItem = sheetItem.name;
SheetItemColor color = sheetItem.color;
final OnSheetItemClickListener listener = (OnSheetItemClickListener) sheetItem.itemClickListener;
TextView textView = new TextView(context);
textView.setText(strItem);
textView.setTextSize(18);
textView.setGravity(Gravity.CENTER);
// 背景图片
if (size == 1) {
if (showTitle) {
textView.setBackgroundResource(R.drawable.actionsheet_bottom_selector);
} else {
textView.setBackgroundResource(R.drawable.actionsheet_single_selector);
}
} else {
if (showTitle) {
if (i >= 1 && i < size) {
textView.setBackgroundResource(R.drawable.actionsheet_middle_selector);
} else {
textView.setBackgroundResource(R.drawable.actionsheet_bottom_selector);
}
} else {
if (i == 1) {
textView.setBackgroundResource(R.drawable.actionsheet_top_selector);
} else if (i < size) {
textView.setBackgroundResource(R.drawable.actionsheet_middle_selector);
} else {
textView.setBackgroundResource(R.drawable.actionsheet_bottom_selector);
}
}
}
// 字体颜色
if (color == null) {
textView.setTextColor(Color.parseColor(SheetItemColor.Blue
.getName()));
} else {
textView.setTextColor(Color.parseColor(color.getName()));
}
// 高度
float scale = context.getResources().getDisplayMetrics().density;
int height = (int) (45 * scale + 0.5f);
textView.setLayoutParams(new LinearLayout.LayoutParams(
LayoutParams.MATCH_PARENT, height));
// 点击事件
textView.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
listener.onClick(index);
dialog.dismiss();
}
});
lLayout_content.addView(textView);
}
}
public void show() {
setSheetItems();
dialog.show();
}
public interface OnSheetItemClickListener {
void onClick(int which);
}
public class SheetItem {
String name;
OnSheetItemClickListener itemClickListener;
SheetItemColor color;
public SheetItem(String name, SheetItemColor color,
OnSheetItemClickListener itemClickListener) {
this.name = name;
this.color = color;
this.itemClickListener = itemClickListener;
}
}
public enum SheetItemColor {
Blue("#037BFF"), Red("#FD4A2E");
private String name;
private SheetItemColor(String name) {
this.name = name;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
}
}
用了他家的图，怎么说也要回馈一下他吧，送上链接一条，表示尊敬。
是不是“”干货"，就看你怎么想了，我觉得慢慢的回忆感