自定义dialog

public class RemindPhotoDialog extends Dialog {

    private final String TAG = "RemindPhotoDialog";
    private static int default_width = 280; //默认宽
    private static int default_height = 440;//默认高度
    private View upload;
    private View exit;
    public static boolean ifDeletedAvatar;



    public RemindPhotoDialog(Context context, int layout, int theme) {
        this(context, layout, default_width, default_height, theme);
    }

    public RemindPhotoDialog(Context context, int layout, int width, int height, int theme) {
        super(context, theme);
        setContentView(layout);
        Window window = getWindow();
        WindowManager.LayoutParams params = window.getAttributes();
        float density = getDensity(context);
//        params.width = (int) (width * density);
        params.width = DeviceUtils.getScreenWidth() - PixelUtils.getPxByDp(32 * 2);
//        params.width = LinearLayout.LayoutParams.WRAP_CONTENT;
        params.height = LinearLayout.LayoutParams.WRAP_CONTENT;
//        params.width = Config.width;//- 35 * density
//        params.height = (int) (Config.height - 100 * density);//125
        params.gravity = Gravity.CENTER;
        window.setAttributes(params);
        window.setWindowAnimations(R.style.reportDialogWindowAnim);

        initView();
        setListener();
    }


    private void initView() {
        upload = findViewById(R.id.layout_ok);
        exit = findViewById(R.id.iv_exit);

        exit.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                dismiss();
            }
        });
        upload.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                getContext().startActivity(new Intent(getContext(),MyProfileActivity.class));
                ifDeletedAvatar = true;
                dismiss();
            }
        });
    }

    private void setListener() {
    }

    private float getDensity(Context context) {
        Resources resources = context.getResources();
        DisplayMetrics dm = resources.getDisplayMetrics();
        return dm.density;
    }

    @Override
    public void show() {
        super.show();
    }


}

 2、资源文件

 <style name="reportDialogWindowAnim" parent="android:Animation">
        <item name="android:windowEnterAnimation">@anim/dialog_report_in</item>
        <item name="android:windowExitAnimation">@anim/dialog_report_out</item>
    </style>

in

<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android"
    android:duration="200"
    android:interpolator="@android:anim/linear_interpolator" >
    <translate
        android:fromYDelta="100%p"
        android:toYDelta="0" />
    <alpha
        android:fromAlpha="0.0"
        android:toAlpha="1.0" />

</set>

out

<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android"
    android:duration="200"
    android:interpolator="@android:anim/linear_interpolator">
    <translate
        android:fromYDelta="0"
        android:toYDelta="100%p" />
    <alpha
        android:fromAlpha="1.0"
        android:toAlpha="0" />
</set>

 style

<style name="MyDialogStyle" parent="@android:style/Theme.Dialog">
        <item name="android:windowBackground">@color/transparent</item>
        <item name="android:background">@color/transparent</item>
        <item name="android:windowFrame">@null</item>
        <item name="android:windowNoTitle">true</item>
        <item name="android:windowIsFloating">true</item>
        <item name="android:windowIsTranslucent">false</item>
        <item name="android:windowContentOverlay">@null</item>
        <item name="android:windowAnimationStyle">@android:style/Animation.Dialog</item>
        <item name="android:backgroundDimEnabled">true</item>
        <item name="android:backgroundDimAmount">0.5</item>
    </style>