有没有办法在使用AsyncTask进行分页获取数据时,在SnackBar上显示进度对话框。如果可能的话,如何实现,请给出建议。
有没有办法在使用AsyncTask进行分页获取数据时,在SnackBar上显示进度对话框。如果可能的话,如何实现,请给出建议。
对于新设计库:
如果您想在左侧显示进度条:
Snackbar bar = Snackbar.make(root, R.string.data_updating, Snackbar.LENGTH_INDEFINITE);
ViewGroup contentLay = (ViewGroup) bar.getView().findViewById(android.support.design.R.id.snackbar_text).getParent();
ProgressBar item = new ProgressBar(context);
contentLay.addView(item,0);
bar.show();
或者在右侧:
Snackbar bar = Snackbar.make(root, R.string.data_updating, Snackbar.LENGTH_INDEFINITE);
ViewGroup contentLay = (ViewGroup) bar.getView().findViewById(android.support.design.R.id.snackbar_text).getParent();
ProgressBar item = new ProgressBar(context);
contentLay.addView(item);
bar.show();
getParent()
两次:bar.getView().findViewById(com.google.android.material.R.id.snackbar_text).getParent().getParent()
- Pat LeeSnackbar bar = Snackbar.make(layout, "Somthing", Snackbar.LENGTH_INDEFINITE);
Snackbar.SnackbarLayout snack_view = bar.getView();
snack_view.addView(new ProgressBar(context));
bar.show();
SnackbarLayout 继承
LinearLayout,因此您可以将视图添加为其子级或按照您想要的方式进行自定义。
例如,要更改 SnackBar 内部 TextView 的样式,您可以执行以下操作:
TextView tv = (TextView) bar.getView().findViewById(android.support.design.R.id.snackbar_text);
tv.setTextColor(Color.WHITE);
tv.setTextSize(0, dimen[1] / 40);
tv.setTypeface(Typeface.createFromAsset(context.getAssets(),"fonts/font.otf"));
fun showLoadingSnackbar(){
val snackbar: Snackbar = Snackbar.make(findViewById(R.id.rootlayoutid), "TEXT or RES", Snackbar.LENGTH_INDEFINITE)
val viewGroup = snackbar.view.findViewById<View>(com.google.android.material.R.id.snackbar_text).parent as ViewGroup
viewGroup.addView(ProgressBar(this))// Or Context if not in Activity
snackbar.show()
}
如果你想把它放在左边,只需调用addView(ProgressBar(this),0)
,如其他答案中所述。
编辑:如果文本太长,答案会将进度条放在顶部,因此要使其居中,可以执行以下操作:
val snackbar: Snackbar = Snackbar.make(this, text, duration)
val viewGroup = snackbar.view.findViewById<View>(com.google.android.material.R.id.snackbar_text).parent as ViewGroup
viewGroup.addView(ProgressBar(context).also {
it.layoutParams = ViewGroup.LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.MATCH_PARENT)
it.foregroundGravity = Gravity.CENTER_VERTICAL
})
snackbar.show()
<translate xmlns:android="http://schemas.android.com/apk/res/android"
android:fromYDelta="50%p" android:toYDelta="0%p"
android:duration="@android:integer/config_longAnimTime"
/>
创建另一个动画资源文件,命名为slide_out.xml:
<translate xmlns:android="http://schemas.android.com/apk/res/android"
android:duration="@android:integer/config_longAnimTime"
android:fromYDelta="0%p"
android:toYDelta="100%p" />
<style name="CustomDialog" parent="@android:style/Theme.Holo.Dialog">
<item name="android:windowMinWidthMajor">100%</item>
<item name="android:windowMinWidthMinor">100%</item>
<item name="android:background">#323232</item>
<item name="android:textColor">#FFFFFF</item>
<item name="android:windowBackground">@color/transparent</item>
<item name="android:backgroundDimEnabled">true</item>
<item name="android:alertDialogStyle">@style/customDialogStyle</item>
<item name="android:windowAnimationStyle">@style/DialogAnimation</item>
</style>
<style name="customDialogStyle">
<item name="android:bottomBright">@android:color/transparent</item>
<item name="android:bottomDark">@android:color/transparent</item>
<item name="android:bottomMedium">@android:color/transparent</item>
<item name="android:centerBright">@android:color/transparent</item>
<item name="android:centerDark">@android:color/transparent</item>
<item name="android:centerMedium">@android:color/transparent</item>
<item name="android:fullBright">@android:color/transparent</item>
<item name="android:fullDark">@android:color/transparent</item>
<item name="android:topBright">@android:color/transparent</item>
<item name="android:topDark">@android:color/transparent</item>
<style name="DialogAnimation">
<item name="android:windowEnterAnimation">@anim/slide_in</item>
<item name="android:windowExitAnimation">@anim/slide_out</item>
</style>
public static ProgressDialog processSnackbar(Context context,String s){
ProgressDialog pSnackbar = new ProgressDialog(context, R.style.CustomDialog) {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
ProgressBar progress = (ProgressBar) findViewById(android.R.id.progress);
LinearLayout bodyLayout = (LinearLayout) progress.getParent();
TextView messageView = (TextView) bodyLayout.getChildAt(1);
messageView.setPadding(20,0,0,0);
LinearLayout.LayoutParams llp =
(LinearLayout.LayoutParams) messageView.getLayoutParams();
llp.width = 0;
llp.weight = 1;
bodyLayout.removeAllViews();
bodyLayout.addView(messageView, llp);
bodyLayout.addView(progress);
}
};
pSnackbar.setProgressStyle(ProgressDialog.STYLE_SPINNER);
pSnackbar.setMessage(s);
pSnackbar.getWindow().setGravity(Gravity.BOTTOM);
pSnackbar.setCancelable(false);
return pSnackbar;
}
方法 Credit 返回 @mike-m 的引用是否可能更改进度对话框的消息或旋转器位置?
我也在我的应用程序中使用这个,看一下: