网络加载的loding效果实现

最新推荐文章于 2021-09-10 18:49:00 发布

傅晨明

最新推荐文章于 2021-09-10 18:49:00 发布

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分类专栏： Android

本文链接：https://blog.youkuaiyun.com/hongxue8888/article/details/53482912

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本文介绍了一个自定义的 Android 进度对话框 HxProgressDialog 的实现细节，包括如何显示进度条、设置消息文本及对话框样式等。

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这里写图片描述
HxProgressDialog

public class HxProgressDialog extends Dialog {

    public HxProgressDialog(Context context) {
        super(context);
    }

    public HxProgressDialog(Context context, int theme) {
        super(context, theme);
    }

    public void setMessage(CharSequence message) {
        if(message != null && message.length() > 0) {
            findViewById(R.id.message).setVisibility(View.VISIBLE);
            TextView txt = (TextView)findViewById(R.id.message);
            txt.setText(message);
            txt.invalidate();
        }
    }

    public static HxProgressDialog show(Context context, CharSequence message, boolean indeterminate, boolean cancelable,
                                   OnCancelListener cancelListener) {

        HxProgressDialog dialog = new HxProgressDialog(context, R.style.ProgressDialog);
        dialog.setTitle("");
        dialog.setContentView(R.layout.progress_dialog);
        if(message == null || message.length() == 0) {
            dialog.findViewById(R.id.message).setVisibility(View.GONE);
        } else {
            TextView txt = (TextView)dialog.findViewById(R.id.message);
            txt.setText(message);
        }
        dialog.setCanceledOnTouchOutside(false);
        dialog.setCancelable(cancelable);
        dialog.setOnCancelListener(cancelListener);
        dialog.getWindow().getAttributes().gravity= Gravity.CENTER;
        WindowManager.LayoutParams lp = dialog.getWindow().getAttributes();
        lp.dimAmount=0.2f;
        dialog.getWindow().setAttributes(lp);
        dialog.show();
        return dialog;
    }
}

progress_dialog.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_gravity="center"
    android:gravity="center_horizontal"
    android:background="@drawable/progress_dialog_bg"
    android:orientation="horizontal"
    android:padding="20dp">
    <com.hongxue.volley.widget.ProgressImageView
        android:id="@+id/spinnerImageView"
        android:layout_width="32dp"
        android:layout_height="32dp" />

    <TextView
        android:id="@+id/message"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center"
        android:paddingLeft="10dp"
        android:text="Message"
        android:visibility="gone"
        android:textColor="#FFFFFF" />

</LinearLayout>

style.xml->ProgressDialog

    <style name="ProgressDialog" parent="@android:style/Theme.Dialog">
        <item name="android:windowFrame">@null</item>
        <item name="android:windowIsFloating">true</item>
        <item name="android:windowContentOverlay">@null</item>
        <item name="android:windowAnimationStyle">@android:style/Animation.Dialog</item>
        <item name="android:windowSoftInputMode">stateUnspecified|adjustPan</item>
        <item name="android:windowBackground">@android:color/transparent</item>
        <item name="android:windowNoTitle">true</item>
    </style>

ProgressImageView

public class ProgressImageView extends ImageView {

    public ProgressImageView(Context context, AttributeSet attrs, int defStyle) {
        super(context, attrs, defStyle);
        init();
    }

    public ProgressImageView(Context context, AttributeSet attrs) {
        super(context, attrs);
        init();
    }

    public ProgressImageView(Context context) {
        super(context);
        init();
    }

    private void init() {
        setBackgroundResource(R.drawable.spinner);
        final AnimationDrawable frameAnimation = (AnimationDrawable) getBackground();
        post(new Runnable(){
            public void run(){
                frameAnimation.start();
            }
        });
    }

}

spinner.xml

<animation-list xmlns:android="http://schemas.android.com/apk/res/android"
    android:oneshot="false" >

    <item
        android:drawable="@drawable/spinner_0"
        android:duration="60"/>
    <item
        android:drawable="@drawable/spinner_1"
        android:duration="60"/>
    <item
        android:drawable="@drawable/spinner_2"
        android:duration="60"/>
    <item
        android:drawable="@drawable/spinner_3"
        android:duration="60"/>
    <item
        android:drawable="@drawable/spinner_4"
        android:duration="60"/>
    <item
        android:drawable="@drawable/spinner_5"
        android:duration="60"/>
    <item
        android:drawable="@drawable/spinner_6"
        android:duration="60"/>
    <item
        android:drawable="@drawable/spinner_7"
        android:duration="60"/>
    <item
        android:drawable="@drawable/spinner_8"
        android:duration="60"/>
    <item
        android:drawable="@drawable/spinner_9"
        android:duration="60"/>
    <item
        android:drawable="@drawable/spinner_10"
        android:duration="60"/>
    <item
        android:drawable="@drawable/spinner_11"
        android:duration="60"/>
</animation-list>