Question

我正在开发一个连接到Web Service的Android应用程序。如何在重定向到另一个页面时保持页面加载动画？我尝试过以下代码，但每当我按下后退按钮时，加载动画仍然保留在上一页上。有时空白屏幕即将到来。请帮助我改进我的代码并帮助我解决此问题。

public void redirection()
    {   
        ProgressDialog dialog = ProgressDialog.show(MainActivity.this, "","Please wait...", true);
        Intent i = new Intent(this, SecondClass.class);
        startActivity(i);
    }

Answer 1

关注该链接http://www.androidhive.info/2013/06/android-working-with-xml-animations/

这里定义动画

方法开始

@Override
public void onAnimationStart(Animation animation) {
}

方法结束

@Override
public void onAnimationEnd(Animation animation) {
}

Answer 2

在此过程中使用asynctask ......

public class asynclass extends AsyncTask<Void, Void, Void>{
    @Override
    protected void onPreExecute() {
        // TODO Auto-generated method stub

        ProgressDialog dialog = ProgressDialog.show(MainActivity.this, "","Please wait...", true);
    }

@Override
    protected Void doInBackground(Void... params) {
        // TODO Auto-generated method stub
        try {

//do your work which u want 
}
}

    @Override
    protected void onPostExecute(Void result) {
        // TODO Auto-generated method stub

        dialog .dismissDialog();

//and here u can pass intent if u want to pass 
    }
}

Answer 3

希望您使用AsyncTask来下载数据..

启动进度对话框

Private ProgressDialog pDialog;

尝试将此代码放在onPreExecute（）..

上

@Override
        protected void onPreExecute() {
            // TODO Auto-generated method stub
            super.onPreExecute();

            pDialog = new ProgressDialog(getParent());
            pDialog.setMessage("Please wait ...");
            pDialog.setIndeterminate(false);
            pDialog.setCancelable(false);
            pDialog.show();
        }

完全按照

下载数据后，在PostExcute停止进度对话框中

pDialog.dismiss();

如何启动页面加载动画并停止加载页面

3 个答案: