Android uses code to display ProgressDialog and ProgressBar in the middle of the screen
Last Update:2017-06-08
Source: Internet
Author: User
<span id="Label3"></p><pre><span style="color: #000000;">package <span style="color: #000000;">cc.testprogressdialog;import android.os.bundle;import Android.view.gravity;import android.view.View; Import Android.view.viewgroup.layoutparams;import Android.widget.framelayout;import android.widget.LinearLayout; Import Android.widget.progressbar;import Android.app.activity;import Android.app.progressdialog;import android.content.Context;</span></span><span style="color: #008000;"><span style="color: #008000;">/*</span></span><span style="color: #008000;">* <span style="color: #008000;">* Demo Description: * Use code to display ProgressDialog and ProgressBar in the middle of the screen * reference: * 1</span></span><span style="color: #008000; text-decoration: underline;"><span style="color: #008000; text-decoration: underline;">http://blog.csdn.net/lfdfhl/article/details/18913435</span></span><span style="color: #008000;"><span style="color: #008000;">* 2</span></span><span style="color: #008000; text-decoration: underline;"><span style="color: #008000; text-decoration: underline;">http://blog.csdn.net/lfdfhl/article/details/9299075</span></span><span style="color: #008000;"><span style="color: #008000;">* 3</span></span><span style="color: #008000; text-decoration: underline;"><span style="color: #008000; text-decoration: underline;">http://rocye.iteye.com/blog/1258936</span></span><span style="color: #008000;"><span style="color: #008000;">* Thank you very much * * If you add a control dynamically in a linear layout, and you want the control to be centered in the Layout. * can also be used in a similar way in the Createprogressbar () method *</span></span><span style="color: #008000;"><span style="color: #008000;">*/</span></span><span style="color: #0000ff;"><span style="color: #0000ff;"></span> public</span> <span style="color: #0000ff;"><span style="color: #0000ff;">class</span></span><span style="color: #000000;"><span style="color: #000000;">Mainactivity extends Activity {</span></span><span style="color: #0000ff;"><span style="color: #0000ff;">Private</span></span><span style="color: #000000;"><span style="color: #000000;">Context mcontext; </span></span><span style="color: #0000ff;"><span style="color: #0000ff;">Private</span></span><span style="color: #000000;"><span style="color: #000000;">ProgressBar mprogressbar; </span></span><span style="color: #0000ff;"><span style="color: #0000ff;">Private</span></span><span style="color: #000000;"><span style="color: #000000;">ProgressDialog mprogressdialog; @Override</span></span><span style="color: #0000ff;"><span style="color: #0000ff;">protected</span></span> <span style="color: #0000ff;"><span style="color: #0000ff;">void</span></span><span style="color: #000000;"><span style="color: #000000;">onCreate (Bundle Savedinstancestate) {super.oncreate (savedinstancestate); Setcontentview (r.layout.main); </span></span><span style="color: #008000;"><span style="color: #008000;">//</span></span><span style="color: #008000;"><span style="color: #008000;">Show ProgressBar</span></span><span style="color: #000000;"><span style="color: #000000;">Createprogressbar (); </span></span><span style="color: #008000;"><span style="color: #008000;">//</span></span><span style="color: #008000;"><span style="color: #008000;">Show ProgressDialog</span></span><span style="color: #008000;"><span style="color: #008000;">//</span></span><span style="color: #008000;"><span style="color: #008000;">Createprogressdialog ();</span></span><span style="color: #000000;"><span style="color: #000000;"> } </span></span><span style="color: #0000ff;"><span style="color: #0000ff;">Private</span></span> <span style="color: #0000ff;"><span style="color: #0000ff;">void</span></span><span style="color: #000000;"><span style="color: #000000;">Createprogressbar () {mcontext</span></span>=<span style="color: #0000ff;"><span style="color: #0000ff;"></span> this</span><span style="color: #000000;"><span style="color: #000000;">; </span></span><span style="color: #008000;"><span style="color: #008000;">//</span></span><span style="color: #008000;">the <span style="color: #008000;">Final Parent layout of the entire activity layout, See Resources</span></span>Framelayout rootframelayout=<span style="color: #000000;"><span style="color: #000000;">(framelayout) Findviewbyid (android. r.id.content); Framelayout.layoutparams Layoutparams</span></span>=<span style="color: #0000ff;"><span style="color: #0000ff;">New</span></span><span style="color: #000000;"><span style="color: #000000;">Framelayout.layoutparams (layoutparams.wrap_content, layoutparams.wrap_content); Layoutparams.gravity</span></span>=<span style="color: #000000;"><span style="color: #000000;">gravity.center; Mprogressbar</span></span>=<span style="color: #0000ff;"><span style="color: #0000ff;">New</span></span><span style="color: #000000;"><span style="color: #000000;">ProgressBar (mcontext); Mprogressbar.setlayoutparams (layoutparams); Mprogressbar.setvisibility (view.visible); Rootframelayout.addview (mprogressbar); } </span></span><span style="color: #0000ff;"><span style="color: #0000ff;">Private</span></span> <span style="color: #0000ff;"><span style="color: #0000ff;">void</span></span><span style="color: #000000;"><span style="color: #000000;">createprogressdialog () {mcontext</span></span>=<span style="color: #0000ff;"><span style="color: #0000ff;"></span> this</span><span style="color: #000000;"><span style="color: #000000;">; Mprogressdialog</span></span>=<span style="color: #0000ff;"><span style="color: #0000ff;">New</span></span><span style="color: #000000;"><span style="color: #000000;">ProgressDialog (mcontext); Mprogressdialog.setmessage (</span></span><span style="color: #800000;"><span style="color: #800000;">"</span></span><span style="color: #800000;"><span style="color: #800000;">... Could you wait a moment, please</span> ?</span><span style="color: #800000;"><span style="color: #800000;">"</span></span><span style="color: #000000;"><span style="color: #000000;">); Mprogressdialog.show (); }}</span></span></pre><p><p></p></p><p><p>Android uses code to display ProgressDialog and ProgressBar in the middle of the screen</p></p></span>
