Android 开始新活动时的进度对话框
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原文地址: http://stackoverflow.com/questions/2231438/
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Progress Dialog while starting new activity
提问by Andy
this button is shown on my start activity. After pressing it a new activity will be launched but this takes some time cause on initialization of that new activity some data is gathered from the Internet. This works half. The progress dialoge is shown but the progress wheel is not spinning.
此按钮显示在我的开始活动中。按下后将启动一个新活动，但这需要一些时间，因为在初始化该新活动时会从 Internet 收集一些数据。这工作一半。显示进度对话框，但进度轮未旋转。
Can somebody tell me why this happens?
有人能告诉我为什么会这样吗？
Button b4 = (Button) findViewById(R.id.Button01);
b4.setOnClickListener(new View.OnClickListener() {
public void onClick (View view) {
final ProgressDialog pd = ProgressDialog.show(pak.this,
"", "Working..", true);
new Thread(new Runnable(){
public void run(){
Intent intent = new Intent();
intent.setClassName("sxe.pak", "sxe.pak.List");
startActivity(intent);
pd.dismiss();
}
}).start();
}
});
thx
谢谢
采纳答案by Mark B
You need to show the progress dialog at the very start of your 2nd Activity, not your first one. And you need to do your data download work in an AsyncTask.
您需要在第二个活动开始时显示进度对话框，而不是第一个。并且您需要在 AsyncTask 中完成数据下载工作。
See my answer to this for more info:
有关更多信息，请参阅我对此的回答：
