Android dialog自定义样式

有些时候默认的样式不能满足需求，这个时候我们可以自己写xml来布局我们的dialog代码如下，

package com.example.testdialogdemo;

import android.app.Activity;
import android.app.AlertDialog;
import android.content.DialogInterface;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.TextView;
import android.widget.Toast;

public class TestDialogDemoActivity extends Activity {

	private Button btn;

	@Override
	public void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.main);
		btn = (Button) findViewById(R.id.btn);
		btn.setOnClickListener(new OnClickListener() {

			@Override
			public void onClick(View v) {
				CreateDialog();
			}
		});
	}

	private void CreateDialog() {
		AlertDialog.Builder builder = new AlertDialog.Builder(this);
		AlertDialog dialog = builder.create();
		dialog.show();
		dialog.setContentView(R.layout.update_alert_dialog_force);

		TextView update_alert_title = (TextView) dialog.findViewById(R.id.update_alert_title);
		update_alert_title.setText("升级提醒");
		TextView update_alert_content = (TextView) dialog.findViewById(R.id.update_alert_content);
		update_alert_content.setText("软件升级\n软件升级\n软件升级\n软件升级\n");
		Button update_alert_dialog_btn_ok = (Button) dialog.findViewById(R.id.update_alert_dialog_btn_ok);
		update_alert_dialog_btn_ok.setOnClickListener(new OnClickListener() {

			@Override
			public void onClick(View v) {
				Toast.makeText(getApplicationContext(), "shengji ", 1).show();
			}
		});
	}

}

xml如下，

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="wrap_content"
    android:layout_height="210dp"
    android:background="@android:color/black"
    android:orientation="vertical" >

    <RelativeLayout
        android:layout_width="250dp"
        android:layout_height="wrap_content"
        android:gravity="center_vertical"
        android:paddingBottom="2dp"
        android:paddingLeft="5dp"
        android:paddingRight="5dp"
        android:paddingTop="2dp" >

        <ImageView
            android:id="@+id/update_alert_ico"
            android:layout_width="30dp"
            android:layout_height="30dp"
            android:src="@drawable/dyd" />

        <TextView
            android:id="@+id/update_alert_title"
            android:layout_width="wrap_content"
            android:layout_height="30dp"
            android:layout_marginLeft="2dp"
            android:gravity="center_vertical"
            android:layout_toRightOf="@+id/update_alert_ico"
            android:textSize="14.0sp"
            android:textStyle="bold" />
    </RelativeLayout>

    <View
        android:layout_width="wrap_content"
        android:layout_height="2dp"
        android:background="#666666" />

    <ScrollView
        android:layout_width="fill_parent"
        android:layout_height="100dp"
        android:layout_margin="10dp"
        android:scrollbars="none" >

        <TextView
            android:id="@+id/update_alert_content"
            android:layout_width="fill_parent"
            android:layout_height="fill_parent"
            android:textColor="@android:color/white"
            android:textSize="14.0sp" >
        </TextView>
    </ScrollView>

    <LinearLayout
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:gravity="center" >

        <Button
            android:id="@+id/update_alert_dialog_btn_ok"
            android:layout_width="120dip"
            android:layout_height="wrap_content"
            android:layout_marginBottom="5dp"
            android:layout_marginTop="5dp"
            android:background="@drawable/btn_bg_alertdialog_def_left"
            android:gravity="center"
            android:text="立即升级"
            android:textColor="@android:color/black"
            android:textSize="14.0sp"
            android:textStyle="bold" >
        </Button>
    </LinearLayout>

</LinearLayout>