如何管理ProgressDialog微调器[android]
我的对话有问题。我是一个初学者,我无法理解它的工作。这是我的第一个活动代码-如何管理ProgressDialog微调器[android],android,progressdialog,Android,Progressdialog,我的对话有问题。我是一个初学者,我无法理解它的工作。这是我的第一个活动代码- public class AddFriend extends Activity implements View.OnClickListener { Button btSend, btPending; private int progressBarStatus = 0; private ProgressCircle progressBar = null; @Override protected void onCrea
public class AddFriend extends Activity implements View.OnClickListener {
Button btSend, btPending;
private int progressBarStatus = 0;
private ProgressCircle progressBar = null;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.addfriend);
initializeVar();
btSend.setOnClickListener(this);
btPending.setOnClickListener(this);
}
public void initializeVar() {
System.out.println("Initializing variables");
btSend = (Button) findViewById(R.id.btSend);
btPending = (Button) findViewById(R.id.btPending);
}
@Override
public void onClick(final View v) {
progressBar = new ProgressCircle();
// progressBar.start(v.getContext());
System.out.println("status=" + progressBarStatus);
progressBarStatus= click(v);
System.out.println("status after=" + progressBarStatus);
if (progressBarStatus == 1) {
progressBar.stop();
}
}
public int click(View v) {
int status=10;
//ProgressDialog progressDialog = ProgressDialog.show(AddFriend.this,"wait","Processin",true);
progressBar.start(v.getContext());
switch (v.getId()) {
case R.id.btSend:
Intent intent = new Intent(AddFriend.this, AddFriendSend.class);
startActivity(intent);
status=1;
break;
case R.id.btPending:
ServerConnection sc = new ServerConnection();
ArrayList<String> pending;
pending = sc.pendingRequest(v);
int size = pending.size();
if (size == 0) {
AlertDialog.Builder alert = new AlertDialog.Builder(this);
alert.setMessage("No Pending Request");
alert.show();
status=1;
} else {
String[] arr = new String[size];
arr = pending.toArray(arr);
Intent intent1 = new Intent(AddFriend.this, PendingRequest.class).putExtra("pending", arr);
startActivity(intent1);
status=1;
}
break;
}
while(status!=1)
{}
return 1;
}}
这是我的addfriend.xml:-
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical" android:layout_width="match_parent"
android:background="@drawable/background"
android:layout_height="match_parent">
<Button
android:layout_weight="0.4"
android:textColor="#FFFFFF"
android:layout_centerInParent="true"
android:background="@drawable/button_background"
android:layout_marginTop="50dp"
android:layout_gravity="center"
android:layout_width="200dp"
android:layout_height="100dp"
android:id="@+id/btSend"
android:text="Send a new Request"
/>
<Button
android:layout_weight="0.4"
android:textColor="#FFFFFF"
android:layout_centerInParent="true"
android:background="@drawable/button_background"
android:layout_marginTop="150dp"
android:layout_gravity="center"
android:layout_width="200dp"
android:layout_height="100dp"
android:id="@+id/btPending"
android:text="Pending Requests"/>
</LinearLayout>
在执行上述代码时,我没有得到任何进度对话框。尽管程序正在调用start()和stop()方法。谁来帮忙。
我只希望每当执行onClick()时,都会显示一个处理循环,直到click()方法中的代码完全执行为止 上面的问题是您正在创建ProgressBar,但没有将其添加到布局中 在按钮下方的布局中添加一个进度条(在哪里并不重要)。 确保在ProgressBar上设置了一个id 然后在onInitializeVar()中,您需要以初始化按钮的相同方式初始化ProgressBar
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical" android:layout_width="match_parent"
android:background="@drawable/background"
android:layout_height="match_parent">
<Button
android:layout_weight="0.4"
android:textColor="#FFFFFF"
android:layout_centerInParent="true"
android:background="@drawable/button_background"
android:layout_marginTop="50dp"
android:layout_gravity="center"
android:layout_width="200dp"
android:layout_height="100dp"
android:id="@+id/btSend"
android:text="Send a new Request"
/>
<Button
android:layout_weight="0.4"
android:textColor="#FFFFFF"
android:layout_centerInParent="true"
android:background="@drawable/button_background"
android:layout_marginTop="150dp"
android:layout_gravity="center"
android:layout_width="200dp"
android:layout_height="100dp"
android:id="@+id/btPending"
android:text="Pending Requests"/>
</LinearLayout>