Android 自定义AlertDialog

AlertDialog在Android开发中经常用到，在这里分享一个漂亮的自定义AlertDialog控件。

实现效果：

布局文件：

main.xml:

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:orientation="vertical" >

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="@string/welcomeText" 
        android:layout_gravity="center_horizontal"
        android:layout_marginTop="10dp"/>

    <Button
        android:id="@+id/button2"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:text="点 击 出 现 对 话 框" >
    </Button>

</LinearLayout>

dialogview.xml:

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:layout_gravity="center_horizontal|center_vertical"
    android:orientation="vertical" >

    <LinearLayout
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:layout_marginLeft="20dip"
        android:layout_marginRight="20dip"
        android:background="@drawable/alert"
        android:gravity="center_horizontal"
        android:orientation="vertical" >

        <TextView
            android:id="@+id/dialog_title"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginTop="17dip"
            android:textColor="#ffffff"
            android:textSize="16dip"
            android:textStyle="bold" />

        <TextView
            android:id="@+id/dialog_message"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_margin="10dip"
            android:gravity="center_horizontal"
            android:textColor="#ffffff"
            android:textSize="16dip" />

        <LinearLayout
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"
            android:layout_marginBottom="10dip"
            android:layout_marginTop="10dip"
            android:gravity="center_horizontal"
            android:orientation="horizontal" >

            <Button
                android:id="@+id/cancel"
                android:layout_width="0dip"
                android:layout_height="40dip"
                android:layout_gravity="left"
                android:layout_marginLeft="10dip"
                android:layout_weight="0.5"
                android:background="@drawable/custom_button1"
                android:textColor="@color/White"
                android:textStyle="bold" />

            <Button
                android:id="@+id/ok"
                android:layout_width="0dip"
                android:layout_height="40dip"
                android:layout_marginBottom="10dip"
                android:layout_marginRight="10dip"
                android:layout_weight="0.5"
                android:background="@drawable/custom_button"
                android:textColor="@color/White"
                android:textStyle="bold" />
        </LinearLayout>
    </LinearLayout>

</LinearLayout>

MainActivity:

package hi.braincol.example.iphoneAlert;

import android.app.Activity;
import android.app.Dialog;
import android.os.Bundle;
import android.view.View;
import android.view.Window;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.TextView;
import android.widget.Toast;

public class MainActivity extends Activity {
	private Button button;

	@Override
	public void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.main);

		button = (Button) findViewById(R.id.button);
		button.setOnClickListener(new Button.OnClickListener() {

			@Override
			public void onClick(View arg0) {
				showCustomMessage("警告！", "您真的要退出应用？");
			}
		});
	}

	private void showCustomMessage(String pTitle, final String pMsg) {
		final Dialog lDialog = new Dialog(MainActivity.this,
				android.R.style.Theme_Translucent_NoTitleBar);
		lDialog.requestWindowFeature(Window.FEATURE_NO_TITLE);
		lDialog.setContentView(R.layout.dialogview);
		((TextView) lDialog.findViewById(R.id.dialog_title)).setText(pTitle);
		((TextView) lDialog.findViewById(R.id.dialog_message)).setText(pMsg);
		((Button) lDialog.findViewById(R.id.ok)).setText("确定");
		((Button) lDialog.findViewById(R.id.cancel)).setText("取消");

		((Button) lDialog.findViewById(R.id.ok))
				.setOnClickListener(new OnClickListener() {

					@Override
					public void onClick(View v) {
						lDialog.dismiss();
						Toast.makeText(getApplicationContext(), "确定",
								Toast.LENGTH_SHORT).show();
					}
				});
		
		((Button) lDialog.findViewById(R.id.cancel))
				.setOnClickListener(new OnClickListener() {

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

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