运行进度栏切换活动 [英] Run progress bar while switching Activity
问题描述
即时通讯卡在一个情况下,我从活动一切换到活动2。 我使用视频下载(5000)5秒钟后,开始另一个活动 但是,我要运行五秒钟进度条也睡的第一个活动 Pleaze帮我一下,当我点击第一个活动Next按钮进度条跑768,16五秒钟 然后活动应加载 我的code是:
公共类活动1扩展活动{
公共无效的onCreate(包savedInstanceState){
super.onCreate(savedInstanceState);
的setContentView(R.layout.main);
按钮旁边=(按钮)findViewById(R.id.B);
最终进度P =(进度)findViewById(R.id.pr);
next.setOnClickListener(新View.OnClickListener(){
公共无效的onClick(视图查看){
p.setVisibility(4);
线程t =新的Thread();
尝试{
t.sleep(5000);
}
赶上(例外五){}
意图myIntent =新的意图(view.getContext(),activity2.class);
startActivityForResult(myIntent,0);
}
});
}}
不要使用Thread.sleep()方法 - 它为根,以一切邪恶。相反,使用处理程序
和 postDelayed(Runnable的,时间)
-method象下面这样:
公共类活动1扩展活动{
公共无效的onCreate(包savedInstanceState){
super.onCreate(savedInstanceState);
的setContentView(R.layout.main);
按钮旁边=(按钮)findViewById(R.id.B);
最终进度P =(进度)findViewById(R.id.pr);
next.setOnClickListener(新View.OnClickListener(){
公共无效的onClick(视图查看){
p.setVisibility(4);
最终的处理程序处理程序=新的处理程序();
handler.postDelayed(新的Runnable(){
@覆盖
公共无效的run(){
意图myIntent =新的意图(view.getContext(),activity2.class);
startActivityForResult(myIntent,0);
}
},5000);
}
});
}
im stuck in a situation where i am switching from activity 1 to activity 2. i am using Thread.sleep(5000) to start another activity after 5 seconds But the progress bar which i want to run for five seconds also sleeps with the first activity Pleaze help me as to when i click next Button on first activity a progress bar shoud run for five sec and then activity should be loaded My Code is:
public class Activity1 extends Activity {
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
Button next = (Button) findViewById(R.id.B);
final ProgressBar p=(ProgressBar) findViewById(R.id.pr);
next.setOnClickListener(new View.OnClickListener() {
public void onClick(View view) {
p.setVisibility(4);
Thread t=new Thread();
try{
t.sleep(5000);
}
catch(Exception e){}
Intent myIntent = new Intent(view.getContext(), activity2.class);
startActivityForResult(myIntent, 0);
}
});
}}
Don't use Thread.sleep() - it is the root to all evil. Instead, use a Handler
and its postDelayed( Runnable, time )
-method like below:
public class Activity1 extends Activity {
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
Button next = (Button) findViewById(R.id.B);
final ProgressBar p=(ProgressBar) findViewById(R.id.pr);
next.setOnClickListener(new View.OnClickListener() {
public void onClick(View view) {
p.setVisibility(4);
final Handler handler = new Handler();
handler.postDelayed(new Runnable() {
@Override
public void run() {
Intent myIntent = new Intent(view.getContext(), activity2.class);
startActivityForResult(myIntent, 0);
}
}, 5000);
}
});
}
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