Android 对话框封装(确认/取消 )

先看效果图：



就是这样的一个简单的问答对话框，防止用户误操作，可能要多处使用，可以封装一下。

第一步：布局文件 dialog.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="center_horizontal"
android:background="@null"
android:orientation="vertical">

<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="#fff"
android:orientation="vertical"
android:padding="10dp">

<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="center_vertical"
android:orientation="horizontal">

<ImageView
android:id="@+id/ivIcon"
android:layout_width="50dp"
android:layout_height="50dp" />

<TextView
android:id="@+id/tvText"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="5dp"
android:text="New TextNet" />
</LinearLayout>

<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="10dp"
android:orientation="horizontal">

<Button
android:id="@+id/btnCancel"
android:layout_width="100dp"
android:layout_height="40dp"
android:layout_below="@+id/tvContent"
android:background="#DEDEDE"
android:text="取消" />

<View
android:layout_width="10dp"
android:layout_height="0dp" />

<Button
android:id="@+id/btnSure"
android:layout_width="100dp"
android:layout_height="40dp"
android:layout_alignParentRight="true"
android:layout_below="@+id/tvContent"
android:background="#3BB7B8"
android:text="确认" />
</LinearLayout>
</LinearLayout>

</LinearLayout>

第二步：接口类 DialogButtonListener.java

/**
* Developer : xiongwenwei@aliyun.com
* Create Time :2016-5-31 10:14:19
* Function：对话框接口类
*/
public interface DialogButtonListener {

public void sure();//确认键
public void cancel();//取消键
}

第三步：Dialog工具类 DialogUtil.java

import android.app.AlertDialog;
import android.content.Context;
import android.graphics.Color;
import android.graphics.drawable.ColorDrawable;
import android.view.Gravity;
import android.view.View;
import android.view.Window;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.TextView;

import com.xiong.autodetail.R;
import com.xiong.autodetail.activity.BaseActivity;

/**
* Developer : xiongwenwei@aliyun.com
* Create Time :2016-5-31 15:01:50
* Function：确认操作对话框
*/
public class DialogUtil {

private AlertDialog dlg;
private ImageView ivIcon;
private TextView tvText;
private Button btnCancel,btnSure;

private Context context;
private int imgResId = 0;
private String text;
private DialogButtonListener listener;

public void show(String text, final DialogButtonListener listener) {
this.context = BaseActivity.getInstance();
this.text = text;
this.listener = listener;
createDialog();
setValue();
}

public void show( int imgResId, String text, final DialogButtonListener listener) {
this.context = BaseActivity.getInstance();
this.text = text;
this.listener = listener;
this.imgResId = imgResId;
createDialog();
setValue();
}

public void show(Context context, String text, final DialogButtonListener listener) {
this.context = context;
this.text = text;
this.listener = listener;
createDialog();
setValue();
}

public void show(Context context, int imgResId, String text, final DialogButtonListener listener) {
this.context = context;
this.text = text;
this.listener = listener;
this.imgResId = imgResId;
createDialog();
setValue();
}

//创建Dialog、初始化控件
private void createDialog() {
dlg = new AlertDialog.Builder(context).create();
dlg.show();
Window window = dlg.getWindow();
window.setContentView(R.layout.dialog);
window.setGravity(Gravity.CENTER);//居中
window.setBackgroundDrawable(new ColorDrawable(Color.TRANSPARENT));//背景透明
ivIcon = (ImageView) window.findViewById(R.id.ivIcon);
tvText = (TextView) window.findViewById(R.id.tvText);
btnCancel = (Button) window.findViewById(R.id.btnCancel);
btnSure = (Button) window.findViewById(R.id.btnSure);
}

//设置控件值
private void setValue() {
if (imgResId != 0) {
ivIcon.setImageResource(imgResId);
} else {
ivIcon.setVisibility(View.GONE);
}
tvText.setText(text);
btnCancel.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
listener.cancel();
dlg.dismiss();
}
});
btnSure.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
listener.sure();
dlg.dismiss();
}
});
}
}

第四步：代码调用

DialogUtil dialogUtil = new DialogUtil();
dialogUtil.show(R.drawable.idea, "确认修改吗?", new DialogButtonListener() {
@Override
public void sure() {
ToastUtil.show("点击了确认");
}

@Override
public void cancel() {
ToastUtil.show("点击了取消");
}
});

其它类 BaseActivity.java

private static BaseActivity instance = null;

@Override
public void setContentView(int layoutResID) {
super.setContentView(layoutResID);

instance = this;
}

public static BaseActivity getInstance() {
return instance;
}

END !