Dialog及子类

Dialog

正常的使用

public class Main6Activity extends AppCompatActivity {

Button mButton;
Dialog dialog;
@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main6);
    init();
}

private void init() {

    mButton = (Button) this.findViewById(R.id.button);
    dialog = new Dialog(this);
    dialog.setTitle("title");

    mButton.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            dialog.show();
        }
    });

}
}

[图片上传失败...(image-c358fd-1539477787745)]
非常的丑陋！！！

 /**
 * Creates a dialog window that uses the default dialog theme.
 * <p>
 * The supplied {@code context} is used to obtain the window manager and
 * base theme used to present the dialog.
 *
 * @param context the context in which the dialog should run
 * @see android.R.styleable#Theme_dialogTheme
 */

其实我们可以自定义dialog的主题，包括将自定义的布局传给这个window让他显示

 private static final String TAG = "Main5Activity";

private Dialog mDialog;
private Button testButton;
private Button confirmButton;
private Button cancelButton;


@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main5);
    init();
}

private void init() {
    mDialog = new Dialog(this, R.style.my_dialog);
    testButton = (Button) this.findViewById(R.id.button);

    mDialog.setCanceledOnTouchOutside(false);//设置点击dialog以外的区域不能使dialog消失

    //加载自定义布局
    mDialog.setContentView(getLayoutInflater().inflate(R.layout.dialog_content, null)
            , new ViewGroup.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.WRAP_CONTENT));


    confirmButton = (Button) mDialog.findViewById(R.id.confirm);
    cancelButton = (Button) mDialog.findViewById(R.id.cancel);

    Window window = mDialog.getWindow();
    WindowManager.LayoutParams params = window.getAttributes();

    params.gravity = Gravity.CENTER;
    params.width = ViewGroup.LayoutParams.MATCH_PARENT;
    window.setAttributes(params);

    testButton.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            mDialog.show();
        }
    });

    confirmButton.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            Toast.makeText(Main5Activity.this, "confirm click", Toast.LENGTH_SHORT).show();
            mDialog.dismiss();
        }
    });

    cancelButton.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            Toast.makeText(Main5Activity.this, "cancel click", Toast.LENGTH_SHORT).show();
            mDialog.dismiss();
        }
    });

}

dialog xml

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

<TextView
    android:id="@+id/title"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:gravity="center"
    android:paddingBottom="5dp"
    android:paddingTop="5dp"

    android:text="提示"
    android:textColor="@android:color/holo_blue_dark"
    android:textSize="18sp"
    />

<TextView
    android:id="@+id/content"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:paddingBottom="5dp"
    android:paddingLeft="10dp"
    android:paddingTop="5dp"

    android:text="确定退出应用?"
    android:textColor="@android:color/darker_gray"
    />


<LinearLayout
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:layout_marginTop="5dp"

    android:orientation="horizontal">

    <Button
        android:id="@+id/confirm"
        android:layout_width="0dp"

        android:layout_height="wrap_content"
        android:layout_weight="1"
        android:background="@android:color/white"
        android:text="confirm"
        android:textColor="@android:color/holo_blue_light"
        />

    <android.support.v4.widget.Space
        android:layout_width="2dp"
        android:layout_height="match_parent"
        />

    <Button
        android:id="@+id/cancel"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:layout_weight="1"
        android:background="@android:color/white"
        android:text="cancel"
        android:textColor="@android:color/holo_blue_light"
        />

</LinearLayout>

</LinearLayout>  

style

 <style name="my_dialog" parent="Base.Theme.AppCompat.Dialog">
    <item name="android:windowIsFloating">true</item>
    <item name="android:windowFrame">@null</item>
</style>

[图片上传失败...(image-ba91d5-1539477787745)]

github 原文