@@ -2,11 +2,12 @@ package cc.winboll.studio.powerbell.dialogs;
import android.content.Context ;
import android.graphics.drawable.Drawable ;
import android.os.Handler ;
import android.os.Message ;
import android.view.LayoutInflater ;
import android.view.View ;
import android.widget.Button ;
import android.widget.EditText ;
import android.widget.ImageView ;
import android.widget.TextView ;
import androidx.annotation.NonNull ;
import androidx.appcompat.app.AlertDialog ;
@@ -14,9 +15,11 @@ import cc.winboll.studio.libappbase.LogUtils;
import cc.winboll.studio.libappbase.ToastUtils ;
import cc.winboll.studio.powerbell.R ;
import cc.winboll.studio.powerbell.utils.ImageDownloader ;
import java.io.File ;
import java.io.FileInputStream ;
import java.io.IOException ;
import cc.winboll.studio.powerbell.views.BackgroundView ;
import android.content.DialogInterface ;
/**
* @Author ZhanGSKen&豆包大模型<zhangsken@qq.com>
@@ -25,17 +28,23 @@ import cc.winboll.studio.powerbell.views.BackgroundView;
* 继承 AndroidX AlertDialog，
*/
public class NetworkBackgroundDialog extends AlertDialog {
public static final String TAG = " NetworkBackgroundDialog " ;
public static final String TAG = " NetworkBackgroundDialog " ;
// 消息标识：图片加载成功
private static final int MSG_IMAGE_LOAD_SUCCESS = 1001 ;
// 消息标识：图片加载失败
private static final int MSG_IMAGE_LOAD_FAILED = 1002 ;
// 控件引用
private TextView tvTitle ;
private TextView tvContent ;
private Button btnCancel ;
private Button btnConfirm ;
private Button btnPreview ;
private EditText etURL ;
BackgroundView bvBackgroundPreview ;
Context mContext ;
private Button btnPreview ;
private EditText etURL ;
BackgroundView bvBackgroundPreview ;
Context mContext ;
// 主线程 Handler，
private Handler mUiHandler ;
// 按钮点击回调接口（
public interface OnDialogClickListener {
@@ -48,21 +57,69 @@ public class NetworkBackgroundDialog extends AlertDialog {
// Java7 显式构造（必须传入 Context）
public NetworkBackgroundDialog ( @NonNull Context context ) {
super ( context ) ;
initHandler ( ) ; // 初始化 Handler
initView ( ) ; // 初始化布局和控件
setDismissListener ( ) ; // 设置对话框消失监听
}
// 带回调的构造（便于外部处理点击事件）
public NetworkBackgroundDialog ( @NonNull Context context , OnDialogClickListener listener ) {
super ( context ) ;
this . listener = listener ;
initHandler ( ) ; // 初始化 Handler
initView ( ) ;
setDismissListener ( ) ; // 设置对话框消失监听
}
/**
* 初始化主线程 Handler，
*/
private void initHandler ( ) {
mUiHandler = new Handler ( ) {
@Override
public void handleMessage ( Message msg ) {
super . handleMessage ( msg ) ;
// 对话框已消失时，不再处理 UI 消息
if ( ! isShowing ( ) ) {
return ;
}
switch ( msg . what ) {
case MSG_IMAGE_LOAD_SUCCESS :
// 图片加载成功，获取文件路径并设置背景
String filePath = ( String ) msg . obj ;
setBackgroundFromPath ( filePath ) ;
break ;
case MSG_IMAGE_LOAD_FAILED :
// 图片加载失败，设置默认背景
bvBackgroundPreview . setBackgroundResource ( R . drawable . ic_launcher ) ;
ToastUtils . show ( " 图片预览失败，请检查链接 " ) ;
break ;
}
}
} ;
}
/**
* 设置对话框消失监听：移除 Handler 消息，避免内存泄漏
*/
private void setDismissListener ( ) {
this . setOnDismissListener ( new OnDismissListener ( ) {
@Override
public void onDismiss ( DialogInterface dialog ) {
// 对话框消失时，移除所有未处理的消息和回调
if ( mUiHandler ! = null ) {
mUiHandler . removeCallbacksAndMessages ( null ) ;
}
LogUtils . d ( TAG , " 对话框已消失， " ) ;
}
} ) ;
}
/**
* 初始化布局和控件
*/
private void initView ( ) {
mContext = this . getContext ( ) ;
mContext = this . getContext ( ) ;
// 加载自定义布局
View dialogView = LayoutInflater . from ( getContext ( ) )
. inflate ( R . layout . dialog_networkbackground , null ) ;
@@ -74,10 +131,9 @@ public class NetworkBackgroundDialog extends AlertDialog {
tvContent = ( TextView ) dialogView . findViewById ( R . id . tv_dialog_content ) ;
btnCancel = ( Button ) dialogView . findViewById ( R . id . btn_cancel ) ;
btnConfirm = ( Button ) dialogView . findViewById ( R . id . btn_confirm ) ;
btnPreview = ( Button ) dialogView . findViewById ( R . id . btn_preview ) ;
etURL = ( EditText ) dialogView . findViewById ( R . id . et_url ) ;
//webViewPreview = (WebView) dialogView. findViewById(R.id.webview _preview) ;
bvBackgroundPreview = ( BackgroundView ) findViewById ( R . id . bv_background_preview ) ;
btnPreview = ( Button ) dialogView . findViewById ( R . id . btn_preview ) ;
etURL = ( EditText ) dialogView . findViewById ( R . id . et_url ) ;
bvBackgroundPreview = ( BackgroundView ) . ( R . id . bv_background _preview)
// 设置按钮点击事件
setButtonClickListeners ( ) ;
@@ -116,12 +172,56 @@ public class NetworkBackgroundDialog extends AlertDialog {
@Override
public void onClick ( View v ) {
LogUtils . d ( " NetworkBackgroundDialog " , " 确认预览点击 " ) ;
String url = etURL . getText ( ) . toString ( ) ;
String url = etURL . getText ( ) . toString ( ) . trim ( )
if ( url . isEmpty ( ) ) {
ToastUtils . show ( " 请输入图片链接 " ) ;
return ;
}
ImageDownloader . getInstance ( mContext ) . downloadImage ( url , mDownloadCallback ) ;
}
} ) ;
}
/**
* 根据文件路径设置 BackgroundView 背景（主线程调用）
* @param filePath 图片文件路径
*/
private void setBackgroundFromPath ( String filePath ) {
FileInputStream fis = null ;
try {
File imageFile = new File ( filePath ) ;
if ( ! imageFile . exists ( ) ) {
LogUtils . e ( TAG , " 图片文件不存在： " + filePath ) ;
bvBackgroundPreview . setBackgroundResource ( R . drawable . ic_launcher ) ;
return ;
}
fis = new FileInputStream ( imageFile ) ;
Drawable drawable = Drawable . createFromStream ( fis , null ) ;
// 设置背景（主线程安全操作）
if ( android . os . Build . VERSION . SDK_INT > = android . os . Build . VERSION_CODES . JELLY_BEAN ) {
bvBackgroundPreview . setBackground ( drawable ) ;
} else {
bvBackgroundPreview . setBackgroundDrawable ( drawable ) ;
}
LogUtils . d ( TAG , " 图片预览成功： " + filePath ) ;
} catch ( Exception e ) {
e . printStackTrace ( ) ;
bvBackgroundPreview . setBackgroundResource ( R . drawable . ic_launcher ) ;
LogUtils . e ( TAG , " 图片预览失败： " + e . getMessage ( ) ) ;
} finally {
// Java7 手动关闭流，避免资源泄漏
if ( fis ! = null ) {
try {
fis . close ( ) ;
} catch ( IOException e ) {
e . printStackTrace ( ) ;
}
}
}
}
/**
* 对外提供方法：修改对话框标题（灵活适配不同场景）
*/
@@ -147,49 +247,23 @@ public class NetworkBackgroundDialog extends AlertDialog {
this . listener = listener ;
}
ImageDownloader . DownloadCallback mDownloadCallback = new ImageDownloader . DownloadCallback ( ) {
ImageDownloader . DownloadCallback mDownloadCallback = new ImageDownloader . DownloadCallback ( ) {
@Override
public void onSuccess ( String filePath ) {
ToastUtils . show ( " 图片下载成功： " + filePath ) ;
LogUtils . d ( TAG , filePath ) ;
// 发送消息到主线程，携带图片路径
Message successMsg = mUiHandler . obtainMessage ( MSG_IMAGE_LOAD_SUCCESS , filePath ) ;
mUiHandler . sendMessage ( successMsg ) ;
}
@Override
public void onSuccess ( String filePath ) {
ToastUtils . show ( filePath ) ;
LogUtils . d ( TAG , filePath ) ;
String imagePath = " /storage/emulated/0/Android/data/cc.winboll.studio.powerbell.beta/files/mmexport1713182627221.png " ;
//String imagePath = filePath;
FileInputStream fis = null ;
try {
fis = new FileInputStream ( imagePath ) ;
Drawable drawable = Drawable . createFromStream ( fis , null ) ;
// 设置背景
if ( android . os . Build . VERSION . SDK_INT > = android . os . Build . VERSION_CODES . JELLY_BEAN ) {
bvBackgroundPreview . setBackground ( drawable ) ;
} else {
bvBackgroundPreview . setBackgroundDrawable ( drawable ) ;
}
} catch ( Exception e ) {
e . printStackTrace ( ) ;
//ivBackgroundPreview.setBackgroundResource(R.drawable.default_error); // 异常时显示默认图
bvBackgroundPreview . setBackgroundResource ( R . drawable . ic_launcher ) ; // 异常时显示默认图
} finally {
// Java7 手动关闭流，避免资源泄漏
if ( fis ! = null ) {
try {
fis . close ( ) ;
} catch ( IOException e ) {
e . printStackTrace ( ) ;
}
}
}
}
@Override
public void onFailure ( String errorMsg ) {
ToastUtils . show ( errorMsg ) ;
LogUtils . d ( TAG , errorMsg ) ;
}
} ;
@Override
public void onFailure ( String errorMsg ) {
ToastUtils . show ( " 下载失败： " + errorMsg ) ;
LogUtils . e ( TAG , errorMsg ) ;
// 发送图片加载失败消息
mUiHandler . sendEmptyMessage ( MSG_IMAGE_LOAD_FAILED ) ;
}
} ;
}
