Android自定义圆角对话框

不喜欢多说直接进入正题，提供给需要的小伙伴



首先看效果图



1.MainActivity的代码：

public class MainActivity extends AppCompatActivity {

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
}

/**
* 点击按钮弹出对话框
* @param view
*/
public void click(View view){
final MyDialog myDialog = new MyDialog(this);
myDialog.setTitle("提示");
myDialog.setContent("您确定退出吗？");
myDialog.setOnPositiveListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Toast.makeText(MainActivity.this,"您点了确定",Toast.LENGTH_SHORT).show();
myDialog.dismiss();
}
});
myDialog.setOnNegativeListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Toast.makeText(MainActivity.this,"您点了取消",Toast.LENGTH_SHORT).show();
myDialog.dismiss();
}
});
myDialog.show();

}
}

2.自定义MyDialog的代码：

public class MyDialog extends Dialog {
private Button mPositiveButton, mNegativeButton;//确定与取消按钮
private TextView mContent,mTitle ;//内容与标题

public MyDialog(Context context) {
super(context, R.style.mydialog);
View view = LayoutInflater.from(getContext()).inflate(R.layout.dialog_layout, null);  //通过LayoutInflater获取布局
mTitle = (TextView) view.findViewById(R.id.tv_dialog_title);
mContent = (TextView) view.findViewById(R.id.tv_dialog_content);
mPositiveButton = (Button) view.findViewById(R.id.btn_ok);
mNegativeButton = (Button) view.findViewById(R.id.btn_cancel);
setContentView(view);  //设置view
}

//设置标题
public void setTitle(String title)<
d820
span style="color:#2b2b2b;">{
mTitle.setText(title);
}

//设置内容
public void setContent(String content) {
mContent.setText(content);
}
//确定按钮监听
public void setOnPositiveListener(View.OnClickListener listener){
mPositiveButton.setOnClickListener(listener);
}
//否定按钮监听
public void setOnNegativeListener(View.OnClickListener listener){
mNegativeButton.setOnClickListener(listener);
}
}

3.MyDialog对应的布局代码：

<?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="match_parent"
android:orientation="vertical"
android:background="@drawable/mydialogshape"
>
<TextView
android:id="@+id/tv_dialog_title"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginBottom="30dp"
android:layout_marginTop="20dp"
android:gravity="center_horizontal"
android:text="提示"
android:textColor="#222222"
android:textSize="18sp" />

<TextView
android:layout_marginRight="15dp"
android:layout_marginLeft="15dp"
android:id="@+id/tv_dialog_content"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginBottom="25dp"
android:gravity="center_horizontal"
android:textColor="#666666"
android:textSize="14.5sp" />
<View
android:layout_width="match_parent"
android:layout_height="0.5dp"
android:background="#e5e5e5" />

<RelativeLayout
android:id="@+id/bottomoll"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:layout_centerHorizontal="true"

>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content">
<Button
android:id="@+id/btn_cancel"
android:layout_width="wrap_content"
android:layout_height="55dp"
android:layout_weight="1"
android:text="取消"
android:textColor="#1ab750"
android:background="@null"
android:textSize="16.5sp"
/>
<View
android:layout_width="0.5dp"
android:layout_height="match_parent"
android:background="#e5e5e5" />
<Button
android:id="@+id/btn_ok"
android:layout_width="wrap_content"
android:layout_height="55dp"
android:layout_weight="1"
android:text="确定"
android:textColor="#1ab750"
android:background="@null"
android:textSize="16.5sp"
/>
</LinearLayout>
</RelativeLayout>
</LinearLayout>

4.style下添加如下代码：

<!--自定义对话框的样式-->
<style name="mydialog" parent="android:style/Theme.Dialog">
<!-- 背景透明 -->
<item name="android:windowBackground">@android:color/transparent</item>
<!-- 没有标题 -->
<item name="android:windowNoTitle">true</item>
<!-- 背景模糊 -->
<item name="android:backgroundDimEnabled">true</item>
</style>

5.drawable下的对话框的背景图mydialogshape.xml：

<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
android:shape="rectangle" >
<solid android:color="@color/white" />
<corners android:radius="7dp" />
</shape>

要用的小伙伴可以直接复制用，项目的代码全在这里了。

大功告成!