Android 自定义Dialog 实现类似ios7 UIAlertView

效果图

实现步骤

1.AlertDialog.java

/**
*
* @author zhangwen 2014-12-22
* 只带有一个确认按钮的dialog
*
*/
public class AlertDialog extends Dialog implements OnClickListener{

private TextView mTitleTv;
private Button mOkBtn;
private TextView mMsgTv;

private OnOkClickListener mOnOkClickListener;//确定按钮监听

public interface OnOkClickListener{
void onOkClick();
}

public AlertDialog(Context context, OnOkClickListener onOkClickListener,String title,String btnText){

this(context,onOkClickListener,title,null,btnText);

}

public AlertDialog(Context context, OnOkClickListener onOkClickListener,String title,String msg,String btnText){
super(context, R.style.dialog);

this.mOnOkClickListener = onOkClickListener;
setContentView(R.layout.dialog_alert);
mTitleTv = (TextView) findViewById(R.id.alert_title);
mTitleTv.setText(title);
if(msg!=null){
mMsgTv = (TextView) findViewById(R.id.alert_msg_tv);
mMsgTv.setText(msg);
mMsgTv.setVisibility(View.VISIBLE);
}
mOkBtn = (Button) findViewById(R.id.alert_btn);
mOkBtn.setText(btnText);
mOkBtn.setOnClickListener(this);
}

@Override
public void onClick(View v) {
if(mOnOkClickListener!=null){
mOnOkClickListener.onOkClick();
}
this.dismiss();
}

}

2.styles.xml

<resources xmlns:android="http://schemas.android.com/apk/res/android">
<style name="dialog" parent="@android:style/Theme.Dialog">
<item name="android:windowBackground">@drawable/dialog_bg</item>
<!-- 设置自定义布局的背景透明 -->
<item name="android:windowNoTitle">true</item>
</style>
</resources>

3.colors.xml

<resources>
<color name="dialog_bg">#D0FFFFFF</color>
<color name="dialog_btn_h">#89b7db</color>
</resources>

4.dimens.xml

<resources>

<dimen name="dialog_width">260dp</dimen>

</resources>

5.dialog_alert.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="@dimen/dialog_width"
android:layout_height="match_parent"
android:background="@drawable/dialog_bg"
android:orientation="vertical"
android:padding="0dp" >

<TextView
android:id="@+id/alert_title"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="center"
android:paddingTop="16dip"
android:paddingLeft="10dp"
android:paddingRight="10dp"
android:paddingBottom="12dp"
android:textStyle="bold"
android:textColor="#000"
android:textSize="16sp" />
<TextView
android:id="@+id/alert_msg_tv"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="center"
android:textSize="13sp"
android:paddingTop="0dp"
android:paddingLeft="10dp"
android:paddingRight="10dp"
android:paddingBottom="10dp"
android:textColor="#000"
android:visibility="gone"
/>
<View
android:layout_width="match_parent"
android:layout_height="1px"
android:background="#c0c0c0" />
<Button
android:id="@+id/alert_btn"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="@drawable/sel_dia_btn_b"
android:gravity="center"
android:padding="12dp"
android:text="Ok"
android:textColor="#304FFE"
android:textSize="16dp" />

</LinearLayout>

6 drawable dialog_bg.xml

<?xml version="1.0" encoding="UTF-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android" >
<solid android:color="@color/dialog_bg" />
<corners android:radius="8dip" />
</shape>

7. drawable sel_dia_btn_b.xml

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

<item android:state_pressed="true">
<shape  android:shape="rectangle">
<!-- 填充的颜色 -->
<solid android:color="@color/dialog_btn_h" />
<!-- 设置按钮的四个角为弧形 -->
<!-- android:radius 弧形的半径 -->
<corners android:bottomLeftRadius="5dp" android:bottomRightRadius="5dp" />

<!-- padding：Button里面的文字与Button边界的间隔 -->
<padding android:bottom="10dp" android:left="10dp" android:right="10dp" android:top="10dp" />
</shape>
</item>
<item>
<shape android:shape="rectangle">

<!-- 填充的颜色 -->
<solid android:color="@android:color/transparent" />
<!-- 设置按钮的四个角为弧形 -->
<!-- android:radius 弧形的半径 -->
<corners android:bottomLeftRadius="5dp" android:bottomRightRadius="5dp" />

<!-- padding：Button里面的文字与Button边界的间隔 -->
<padding android:bottom="10dp" android:left="10dp" android:right="10dp" android:top="10dp" />
</shape>
</item>

</selector>

8.使用 MainActivity.java

//只有标题的dialog
new AlertDialog(this, new OnOkClickListener() {

@Override
public void onOkClick() {
//确定按钮点击
}
}, "登陆失败", "确定").show();

//有描述的dialog
new AlertDialog(this, new OnOkClickListener() {

@Override
public void onOkClick() {
//确定按钮点击
}
}, "登陆失败","此用户不存在！请检查后重新登陆", "确定").show();

下载地址：http://download.csdn.net/detail/ko800008ok/9099845

阅读更多