(十）android项目中，通用布局的对话框的实现。

在工作中，我们的APP项目中经常需要用到dialog，一般设计师对于一个APP项目，会设计使用同一个风格，显示不同内容的对话框，所以为了提高开发的效率，我们可以针对一个项目设计一个通用的对话框，所有用到的地方都可以调用。本文针对下面效果的对话框，实现了一个通用对话框，具体实现核心代码如下所示。

1 CustomDialog.java代码实现如下所示：

import android.app.ActionBar.LayoutParams;
import android.app.Dialog;
import android.content.Context;
import android.os.Bundle;
import android.view.Gravity;
import android.view.View;
import android.view.Window;
import android.view.WindowManager;
import android.widget.CheckBox;
import android.widget.CompoundButton.OnCheckedChangeListener;
import android.widget.RelativeLayout;
import android.widget.TextView;

/**
 * 类说明：
 *
 * @author fuyanan
 * @date 2015-9-1
 * @version 1.0.0
 */
public class CustomDialog extends Dialog {

    private TextView custom_dialog_tv_title;
    private TextView custom_dialog_tv_message;
    private RelativeLayout custom_dialog_rl_tip;
    private CheckBox custom_dialog_cb;
    private TextView custom_dialog_tv_tip;
    private TextView custom_dialog_tv_cancel;
    private TextView custom_dialog_tv_confirm;

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

    public CustomDialog(Context context) {
        this(context, R.style.CustomDialog);
    }

    private void initView() {
        setContentView(R.layout.custom_dialog);
        custom_dialog_tv_title = (TextView) findViewById(R.id.custom_dialog_tv_title);
        custom_dialog_tv_message = (TextView) findViewById(R.id.custom_dialog_tv_message);
        custom_dialog_rl_tip = (RelativeLayout) findViewById(R.id.custom_dialog_rl_tip);
        custom_dialog_cb = (CheckBox) findViewById(R.id.custom_dialog_cb);
        custom_dialog_tv_tip = (TextView) findViewById(R.id.custom_dialog_tv_tip);
        custom_dialog_tv_cancel = (TextView) findViewById(R.id.custom_dialog_tv_cancel);
        custom_dialog_tv_confirm = (TextView) findViewById(R.id.custom_dialog_tv_confirm);
    }

    public void setDialogTitle(int visibility) {
        custom_dialog_tv_title.setVisibility(visibility);
    }

    public void setDialogTitle(int visibility, String title) {
        custom_dialog_tv_title.setVisibility(visibility);
        if (visibility == View.VISIBLE) {
            custom_dialog_tv_title.setText(title);
        }
    }

    public void setDialogMessage(String message) {
        custom_dialog_tv_message.setText(message);
    }

    public void setDialogTip(int visibility) {
        custom_dialog_rl_tip.setVisibility(visibility);
    }

    public void setDialogTip(int visibility, String tip,
            OnCheckedChangeListener listener) {
        custom_dialog_rl_tip.setVisibility(visibility);
        if (View.VISIBLE == visibility) {
            custom_dialog_cb.setOnCheckedChangeListener(listener);
            custom_dialog_tv_tip.setText(tip);
        }
    }

    public void setCheckBox(boolean checked) {
        custom_dialog_cb.setChecked(checked);
    }

    public boolean isDialogCheckBoxChecked() {
        return custom_dialog_cb.isChecked();
    }

    public void setDialogCancel(int visibility) {
        custom_dialog_tv_cancel.setVisibility(visibility);
    }

    public void setDialogCancel(int visibility, String text,
            android.view.View.OnClickListener listener) {
        custom_dialog_tv_cancel.setVisibility(visibility);
        if (visibility == View.VISIBLE) {
            custom_dialog_tv_cancel.setText(text);
            custom_dialog_tv_cancel.setOnClickListener(listener);
        }
    }

    public void setDialogConfirm(int visibility) {
        custom_dialog_tv_confirm.setVisibility(visibility);
    }

    public void setDialogConfirm(int visibility, String text,
            android.view.View.OnClickListener listener) {
        custom_dialog_tv_confirm.setVisibility(visibility);
        if (visibility == View.VISIBLE) {
            custom_dialog_tv_confirm.setText(text);
            custom_dialog_tv_confirm.setOnClickListener(listener);
        }
    }

    @Override
    public void show() {
        // TODO Auto-generated method stub
        super.show();
        Window dialogWindow = this.getWindow();
        dialogWindow.setGravity(Gravity.CENTER);
        WindowManager.LayoutParams lp = dialogWindow.getAttributes();
        lp.width = LayoutParams.WRAP_CONTENT;
        lp.height = LayoutParams.WRAP_CONTENT;
        dialogWindow.setAttributes(lp);
    }
}

2、custom_dialog.xml中的代码如下所示：

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="@dimen/custom_dialog_rl_width"
    android:layout_height="wrap_content"
    android:layout_gravity="center"
    android:background="@drawable/common_custom_dialog_bg"
    android:paddingBottom="@dimen/custom_dialog_rl_padding_botton"
    android:paddingLeft="@dimen/custom_dialog_rl_padding_left"
    android:paddingRight="@dimen/custom_dialog_rl_padding_right" >

    <TextView
        android:id="@+id/custom_dialog_tv_title"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginTop="@dimen/custom_dialog_margin_top"
        android:text="标题"
        android:textColor="@color/custom_dialog_tv_color1"
        android:textSize="@dimen/custom_dialog_tv_text_size1" />

    <TextView
        android:id="@+id/custom_dialog_tv_message"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_below="@id/custom_dialog_tv_title"
        android:layout_marginTop="@dimen/custom_dialog_margin_top"
        android:text="内容，提示用户的信息"
        android:textColor="@color/custom_dialog_tv_color2"
        android:textSize="@dimen/custom_dialog_tv_text_size3" />

    <RelativeLayout
        android:id="@+id/custom_dialog_rl_tip"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_below="@id/custom_dialog_tv_message"
        android:layout_marginTop="@dimen/custom_dialog_margin_top"
        >

        <CheckBox
            android:id="@+id/custom_dialog_cb"
            style="@style/CustomDialogCheckBoxTheme"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_centerVertical="true"
            android:checked="true" />

        <TextView
            android:id="@+id/custom_dialog_tv_tip"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_centerVertical="true"
            android:layout_marginLeft="8dp"
            android:layout_toRightOf="@id/custom_dialog_cb"
            android:text="下次不提示"
            android:textColor="@color/custom_dialog_tv_color2"
            android:textSize="@dimen/custom_dialog_tv_text_size2" />
    </RelativeLayout>

    <RelativeLayout
        android:id="@+id/custom_dialog_rl_select"
        android:layout_width="wrap_content"
        android:layout_height="36dp"
        android:layout_alignParentRight="true"
        android:layout_below="@id/custom_dialog_rl_tip"
        android:layout_marginTop="@dimen/custom_dialog_margin_top" >

        <TextView
            android:id="@+id/custom_dialog_tv_cancel"
            android:layout_width="wrap_content"
            android:layout_height="fill_parent"
            android:background="@drawable/common_custom_dialog_btn_selector"
            android:gravity="center_vertical"
            android:paddingLeft="16dp"
            android:paddingRight="16dp"
            android:text="确定"
            android:textColor="@color/custom_dialog_text_bg_color_selector"
            android:textSize="@dimen/custom_dialog_tv_text_size3" />

        <TextView
            android:id="@+id/custom_dialog_tv_confirm"
            android:layout_width="wrap_content"
            android:layout_height="fill_parent"
            android:layout_toRightOf="@id/custom_dialog_tv_cancel"
            android:background="@drawable/common_custom_dialog_btn_selector"
            android:gravity="center_vertical"
            android:paddingLeft="16dp"
            android:paddingRight="16dp"
            android:text="取消"
            android:textColor="@color/custom_dialog_text_bg_color_selector"
            android:textSize="@dimen/custom_dialog_tv_text_size3" />
    </RelativeLayout>

</RelativeLayout>

3、styles.xml中的CustomDialog样式代码如下所示：

 <style name="CustomDialog" parent="@android:style/Theme.Dialog">
        <item name="android:windowFrame">@null</item>
        <item name="android:windowIsFloating">true</item>
        <item name="android:windowIsTranslucent">false</item>
        <item name="android:windowNoTitle">true</item>
        <item name="android:windowBackground">@null</item>
        <item name="android:backgroundDimEnabled">true</item>
        <item name="android:backgroundDimAmount">0.5</item>
  </style>