自定义AlertDialog布局

先看效果图：

附上代码：

		// 1. 布局文件转换为View对象
		LayoutInflater inflater = LayoutInflater.from(this);
		RelativeLayout layout = (RelativeLayout) inflater.inflate(R.layout.alert_dialog_001, null);

		// 2. 新建对话框对象
		final Dialog dialog = new AlertDialog.Builder(MainActivity.this).create();
		dialog.setCancelable(false);
		dialog.show();
		dialog.getWindow().setContentView(layout);
		
		// 3. 消息内容
		TextView dialog_msg = (TextView) layout.findViewById(R.id.dialog_msg);
		dialog_msg.setText("你确定吗？");

		// 4. 确定按钮
		Button btnOK = (Button) layout.findViewById(R.id.dialog_ok);
		btnOK.setOnClickListener(new OnClickListener()
		{
			
			@Override
			public void onClick(View v)
			{
				Toast.makeText(getApplicationContext(), "ok", Toast.LENGTH_SHORT).show();
				dialog.dismiss();
			}
		});

		// 5. 取消按钮
		Button btnCancel = (Button) layout.findViewById(R.id.dialog_cancel);
		btnCancel.setOnClickListener(new OnClickListener()
		{

			@Override
			public void onClick(View v)
			{
				Toast.makeText(getApplicationContext(), "cancel", Toast.LENGTH_SHORT).show();
				dialog.dismiss();
			}
		});

		// 6. 只显示一个按钮
		btnCancel.setVisibility(View.GONE);
		LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(DensityUtil.dip2px(context, 120), DensityUtil.dip2px(context, 48));
		btnOK.setLayoutParams(params);

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:background="#00000000" >

    <RelativeLayout
        android:id="@+id/rl_dialog_content"
        android:layout_width="match_parent"
        android:layout_height="200dp"
        android:layout_marginLeft="40dp"
        android:layout_marginRight="40dp"
        android:background="@drawable/shape_top_corner_no_bottom_line"
        android:padding="8dp" >


        <TextView
            android:id="@+id/dialog_title"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_marginTop="20dp"
            android:gravity="center"
            android:singleLine="true"
            android:text="提示"
            android:textSize="18sp" />

        <TextView
            android:id="@+id/dialog_msg"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_centerInParent="true"
            android:layout_marginLeft="20dp"
            android:layout_marginRight="20dp"
            android:gravity="center"
            android:maxLines="3"
            android:text="你父母知道吗?"
            android:textSize="18sp" />

        <LinearLayout
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"
            android:layout_alignParentBottom="true"
            android:gravity="center"
            android:orientation="horizontal" >

            <Button
                android:id="@+id/dialog_ok"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_weight="1"
                android:background="@drawable/dialog_btn_ok"
                android:text="确定"
                android:textColor="#ffffff" />

            <Button
                android:id="@+id/dialog_cancel"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_marginLeft="5dp"
                android:layout_weight="1"
                android:background="@drawable/dialog_btn_cancle"
                android:text="取消" />
        </LinearLayout>
    </RelativeLayout>

</RelativeLayout>

像素转换工具类：

import android.content.Context;

public class DensityUtil
{
	/**
	 * 根据手机的分辨率从 dp 的单位 转成为 px(像素)
	 */
	public static int dip2px(Context context, float dpValue)
	{
		final float scale = context.getResources().getDisplayMetrics().density;
		return (int) (dpValue * scale + 0.5f);
	}

	/**
	 * 根据手机的分辨率从 px(像素) 的单位 转成为 dp
	 */
	public static int px2dip(Context context, float pxValue)
	{
		final float scale = context.getResources().getDisplayMetrics().density;
		return (int) (pxValue / scale + 0.5f);
	}
}

<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">

    <item><shape>
            <stroke android:width="2dp" android:color="#CCCCCC"/>

            <solid android:color="#FFFFFF" />

            <corners android:radius="6dp" />
        </shape></item>

</selector>

自定义AlertDialog布局,布布扣,bubuko.com