最近事情很多,很久沒寫了,給大家介紹一個知識點,全局的PorgressDialog
實現的方式很普通,我就直接上代碼了,至於效果圖大家自己去演示:
import android.app.AlertDialog;
import android.content.Context;
import android.os.Handler;
import android.os.Looper;
import android.os.Message;
import android.view.Gravity;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.view.Window;
import android.view.WindowManager;
import android.view.animation.Animation;
import android.view.animation.AnimationUtils;
import android.widget.ImageView;
import android.widget.TextView;
import com.lyn.fbird.app.WKXApplication;
import com.lyn.fbird.util.Tools;
import com.lyn.loginUI.R;
import com.lyn.wkxannotationlib.utils.Utils;
/**
* @類名:ProgressDialogUtil
* @類描述:全局加載框
* @作者:Administrator
*/
public class ProgressDialogUtil {
private static final int START_DIALOG = 0;
private static final int UPDATE_DIALOG = 1;
private static final int STOP_DIALOG = 2;
private static AlertDialog dialog = null;
private static TextView title = null;
private static Context context = null;
private static Handler handler = new Handler(Looper.getMainLooper()) {
public void handleMessage(android.os.Message msg) {
String message = "";
switch (msg.what) {
case START_DIALOG:// 啓動加載框
message = (String) msg.obj;
if (dialog != null) {
stopLoad();
}
init(message);
isTouchDismiss(false);
break;
case UPDATE_DIALOG:// 更新加載框
message = (String) msg.obj;
if (title.VISIBLE == View.VISIBLE) {
if (Utils.isEmpty(message)) {
title.setVisibility(View.GONE);
} else {
title.setText(message);
}
} else {
if (!Utils.isEmpty(message)) {
title.setText(message);
title.setVisibility(View.VISIBLE);
}
}
break;
case STOP_DIALOG:// 停止加載框
if (dialog != null) {
dialog.dismiss();
dialog.cancel();
dialog = null;
title = null;
}
break;
}
};
};
/**
* @方法說明:加載控件與佈局
* @方法名稱:init
* @返回值:void
*/
private static void init(String mssg) {
if (!WKXApplication.isAppOnForeground()) {
return;
}
if (null != context) {
LayoutInflater flat = LayoutInflater.from(context);
View v = flat.inflate(R.layout.loading, null);
// 創建對話
dialog = new AlertDialog.Builder(context).create();
// 設置返回鍵點擊消失對話框
dialog.setCancelable(true);
// 設置點擊返回框外邊不消失
dialog.setCanceledOnTouchOutside(false);
// 給該對話框增加系統權限
dialog.getWindow().setType(
WindowManager.LayoutParams.TYPE_SYSTEM_ALERT);
// 顯示對話
dialog.show();
// 加載控件
ImageView progressImageView = (ImageView) v
.findViewById(R.id.loading_animato);
title = (TextView) v.findViewById(R.id.loading_title);
View loadingGroup = v.findViewById(R.id.loading_group);
if (Utils.isEmpty(mssg)) {
title.setVisibility(View.GONE);
loadingGroup.setBackgroundColor(Tools.getUiContext()
.getResources().getColor(R.color.colorless));
} else {
title.setVisibility(View.VISIBLE);
title.setText(mssg);
}
Animation progressAnimato = AnimationUtils.loadAnimation(
Tools.getUiContext(), R.anim.loading_rotate);
progressImageView.startAnimation(progressAnimato);
// 必須放到顯示對話框下面,否則顯示不出效果
Window window = dialog.getWindow();
WindowManager.LayoutParams params = window.getAttributes();
params.width = ViewGroup.LayoutParams.MATCH_PARENT;
params.height = ViewGroup.LayoutParams.MATCH_PARENT;
params.gravity = Gravity.CENTER;
window.setAttributes(params);
// 加載佈局組件
dialog.getWindow().setContentView(v);
}
}
/**
* @方法說明:啓動對話框
* @方法名稱:startLoad
* @param con
* @param msg
* @返回值:void
*/
public static void startLoad(Context con, String msg) {
context = con;
Message mssage = new Message();
mssage.what = START_DIALOG;
mssage.obj = msg;
handler.sendMessage(mssage);
}
/**
* @方法說明:更新顯示的內容
* @方法名稱:UpdateMsg
* @param msg
* @返回值:void
*/
public static void UpdateMsg(String msg) {
Message message = new Message();
message.what = UPDATE_DIALOG;
message.obj = msg;
handler.sendMessage(message);
}
/**
* @方法說明:允許加載條轉動的時候去點擊系統返回鍵
* @方法名稱:openCancelable
* @param flag
* @返回值:void
*/
public static void openCancelable(boolean flag) {
if (dialog != null) {
dialog.setCancelable(flag);
}
}
/**
* @方法說明:允許點擊對話框觸摸消失
* @方法名稱:isTouchDismiss
* @param isdimiss
* @返回值:void
*/
public static void isTouchDismiss(boolean isdimiss) {
if (dialog != null) {
dialog.setCanceledOnTouchOutside(isdimiss);
}
}
/**
* @方法說明:讓警告框消失
* @方法名稱:dismiss
* @返回值:void
*/
public static void stopLoad() {
handler.sendEmptyMessage(STOP_DIALOG);
}
}
上佈局文件,很簡單的不能再簡單,layout/loading.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/layout"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:background="@color/colorless"
android:gravity="center" >
<LinearLayout
android:id="@+id/loading_group"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="@drawable/new_data_toast"
android:orientation="vertical"
android:padding="30dip" >
<ImageView
android:id="@+id/loading_animato"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal"
android:background="@color/colorless"
android:src="@drawable/loading_image" />
<TextView
android:id="@+id/loading_title"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="10dip"
android:gravity="center"
android:textColor="@color/white"
android:textSize="15sp" />
</LinearLayout>
</LinearLayout>
最後上轉圈菊花的動畫效果 anim/loading_rotate.xml:
<?xml version="1.0" encoding="utf-8"?>
<rotate xmlns:android="http://schemas.android.com/apk/res/android"
android:duration="800"
android:fromDegrees="0"
android:interpolator="@android:anim/linear_interpolator"
android:pivotX="50%"
android:pivotY="50%"
android:repeatCount="infinite"
android:repeatMode="restart"
android:toDegrees="+360" >
</rotate>