新需求

app/build.gradle

@@ -9,7 +9,7 @@ android {
     defaultConfig {
         applicationId "com.cfmlg.mlg680"
         minSdk 24
-        targetSdk 33
+        targetSdk 29
         versionCode 1
         versionName "1.0"
 
@@ -39,6 +39,10 @@ android {
             version '3.22.1'
         }
     }
+
+    dataBinding {
+        enabled = true
+    }
     buildFeatures {
         viewBinding true
     }
@@ -48,6 +52,8 @@ android {
             jniLibs.srcDirs = ['libs']
         }
     }
+
+
 }
 
 dependencies {
@@ -62,4 +68,6 @@ dependencies {
     implementation 'com.nostra13.universalimageloader:universal-image-loader:1.9.5'
     implementation 'androidx.appcompat:appcompat:1.4.0'
     implementation 'com.github.sahooz:ImageMapView:1.0.1'
+    implementation 'com.github.getActivity:XXPermissions:20.0'
+    implementation 'androidx.databinding:databinding-runtime:4.0.0'
 }

app/src/main/AndroidManifest.xml

@@ -24,8 +24,20 @@
         android:theme="@style/Theme.MainTheme"
         tools:targetApi="31">
         <activity
+            android:name=".HistoryActivity"
+            android:exported="true" >
+
+        </activity>
+
+        <meta-data
+            android:name="ScopedStorage"
+            android:value="true" />
+
+        <activity
             android:name=".VideoViewActivity"
-            android:exported="false" />
+            android:exported="true">
+
+        </activity>
         <activity
             android:name=".QuestionActivity"
             android:exported="false" />
@@ -34,11 +46,15 @@
             android:configChanges="orientation|keyboardHidden|screenSize"
             android:exported="true"
             android:label="@string/title_activity_gather"
-            android:theme="@style/Theme.MainTheme.Fullscreen"></activity>
+            android:theme="@style/Theme.MainTheme.Fullscreen">
+
+        </activity>
         <activity
             android:name=".Video"
             android:exported="true"
-            android:screenOrientation="landscape"></activity>
+            android:screenOrientation="landscape">
+
+        </activity>
         <activity
             android:name=".MainActivity"
             android:exported="true">

app/src/main/java/com/cfmlg/mlg/CustomImageView.java

@@ -0,0 +1,48 @@
+package com.cfmlg.mlg;
+
+import android.content.Context;
+import android.graphics.Bitmap;
+import android.graphics.BitmapFactory;
+import android.graphics.Canvas;
+import android.util.AttributeSet;
+import android.view.View;
+
+public class CustomImageView extends View {
+
+    private Bitmap bitmap;
+
+    public CustomImageView(Context context) {
+        super(context);
+    }
+
+    public CustomImageView(Context context, AttributeSet attrs) {
+        super(context, attrs);
+        init(context, attrs);
+    }
+
+    public CustomImageView(Context context, AttributeSet attrs, int defStyleAttr) {
+        super(context, attrs, defStyleAttr);
+        init(context, attrs);
+    }
+
+    private void init(Context context, AttributeSet attrs) {
+        int resId = attrs.getAttributeResourceValue(null, "src", 0);
+        if (resId != 0) {
+            bitmap = BitmapFactory.decodeResource(context.getResources(), resId);
+        }
+    }
+
+    @Override
+    protected void onDraw(Canvas canvas) {
+        super.onDraw(canvas);
+        if (bitmap != null) {
+            canvas.drawBitmap(bitmap, 0, 0, null);
+        }
+    }
+
+    // 提供方法用于设置Bitmap
+    public void setImageBitmap(Bitmap bitmap) {
+        this.bitmap = bitmap;
+        invalidate(); // 重新绘制视图
+    }
+}

app/src/main/java/com/cfmlg/mlg/HistoryActivity.java

@@ -0,0 +1,20 @@
+package com.cfmlg.mlg;
+
+import androidx.appcompat.app.AppCompatActivity;
+import androidx.databinding.DataBindingUtil;
+
+import android.os.Bundle;
+
+import com.cfmlg.mlg.databinding.ActivityHistoryBinding;
+
+public class HistoryActivity extends AppCompatActivity {
+    ActivityHistoryBinding binding;
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        binding = ActivityHistoryBinding.inflate(getLayoutInflater());
+        setContentView(binding.getRoot());
+
+        binding.setImageUrl("imageUrl");
+    }
+}

app/src/main/java/com/cfmlg/mlg/Video.java

@@ -213,6 +213,7 @@ public class Video extends AppCompatActivity {
                     binding.openDir.setImageResource(R.drawable.ic_app_compare);
                     Intent intent = new Intent(Intent.ACTION_MEDIA_SCANNER_SCAN_FILE);
                     Uri uri = Uri.fromFile(new File(getSdPath()));
+                    Log.e("czb", path);
                     intent.setData(uri);
                     getApplicationContext().sendBroadcast(intent);
                     Intent intent2 = new Intent(Video.this, VideoViewActivity.class);
@@ -321,7 +322,6 @@ public class Video extends AppCompatActivity {
                 InputStream inputStream = socket.getInputStream();
                 length = inputStream.read(bytes);
                 Log.e(TAG, "serverSocketInit: length = " + length + Arrays.toString(bytes));
-                //抓取一张图片
 
                 handler.postDelayed(new Runnable() {
                     @Override
@@ -525,7 +525,6 @@ public class Video extends AppCompatActivity {
 
         @Override
         public void run() {
-            Log.e(TAG, isConnect + "   " + GetVersion(new byte[24]));
             int canShow = GetVersion(new byte[24]);
 
             if(!isConnect) {

app/src/main/java/com/cfmlg/mlg/VideoViewActivity.java

@@ -1,119 +1,135 @@
 package com.cfmlg.mlg;
 
-import androidx.appcompat.app.AppCompatActivity;
-
-import android.app.Activity;
+import android.Manifest;
+import android.content.Intent;
+import android.content.pm.PackageManager;
 import android.media.AudioManager;
 import android.media.MediaPlayer;
+import android.net.Uri;
 import android.os.Bundle;
 import android.os.Environment;
 import android.util.Log;
-import android.view.SurfaceHolder;
 import android.view.SurfaceView;
 import android.view.View;
-import android.widget.Button;
-import android.widget.MediaController;
+import android.widget.ImageButton;
 import android.widget.SeekBar;
-import android.widget.Toast;
-import android.widget.VideoView;
+
+import androidx.annotation.NonNull;
+import androidx.appcompat.app.AppCompatActivity;
+import androidx.core.app.ActivityCompat;
+import androidx.core.content.ContextCompat;
+
+import com.hjq.permissions.OnPermissionCallback;
+import com.hjq.permissions.Permission;
+import com.hjq.permissions.XXPermissions;
 
 import java.io.File;
 import java.io.IOException;
-import java.util.Timer;
-import java.util.TimerTask;
+import java.util.List;
 
-public class VideoViewActivity extends Activity {
-    private Button btn_start_video = null;
-    private Button btn_stop_video = null;
-    private SurfaceView surfaceView;
-    private SurfaceHolder surfaceHolder;
+public class VideoViewActivity extends AppCompatActivity {
 
-    private MediaPlayer m = null;
-    private Timer mTimer;
-    private TimerTask mTimerTask;
+    private MediaPlayer mediaPlayer;
+    private SeekBar sb_main_play;
+    private SurfaceView sv_main_sur;
 
-    private boolean isChanging=false;//互斥变量，防止定时器与SeekBar拖动时进度冲突
     @Override
-    public void onCreate(Bundle savedInstanceState) {
+    protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         setContentView(R.layout.activity_video_view);
+        permission();
+        sb_main_play = (SeekBar) findViewById(R.id.sb_main_play);
+        sv_main_sur = (SurfaceView) findViewById(R.id.sv_main_sur);
 
-        //----------Media控件设置---------//
-        m=new MediaPlayer();
-
-        //播放结束之后弹出提示
-        m.setOnCompletionListener(new MediaPlayer.OnCompletionListener(){
+        sb_main_play.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() {
             @Override
-            public void onCompletion(MediaPlayer arg0) {
-                Toast.makeText(VideoViewActivity.this, "结束", 1000).show();
-                m.release();
+            public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {
             }
-        });
 
-        //----------定时器记录播放进度---------//
-        mTimer = new Timer();
-        mTimerTask = new TimerTask() {
             @Override
-            public void run() {
-                if(isChanging==true)
-                    return;
-
+            public void onStartTrackingTouch(SeekBar seekBar) {
             }
-        };
 
-        mTimer.schedule(mTimerTask, 0, 10);
+            @Override
+            public void onStopTrackingTouch(SeekBar seekBar) {
+                //获取当前进度条位置
+                int currentPosition=seekBar.getProgress();
+                //跳转到某个位置播放
+                mediaPlayer.seekTo(currentPosition);
+            }
+        });
+    }
 
+    private void permission() {
+        if (ContextCompat.checkSelfPermission(VideoViewActivity.this, Manifest.permission.READ_EXTERNAL_STORAGE) == PackageManager.PERMISSION_GRANTED) {
+        } else {
+            ActivityCompat.requestPermissions(this, new String[]{Manifest.permission.READ_EXTERNAL_STORAGE}, 123);
+        }
 
-        btn_start_video = (Button) this.findViewById(R.id.Button03);
-        btn_stop_video = (Button) this.findViewById(R.id.Button04);
-        btn_start_video.setOnClickListener(new ClickEvent());
-        btn_stop_video.setOnClickListener(new ClickEvent());
-        surfaceView = (SurfaceView) findViewById(R.id.SurfaceView01);
-        surfaceHolder = surfaceView.getHolder();
-        surfaceHolder.setFixedSize(100, 100);
-        surfaceHolder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS);
+        XXPermissions.with(this)
+                .permission(Permission.READ_EXTERNAL_STORAGE)
+                .request(new OnPermissionCallback() {
+
+                    @Override
+                    public void onGranted(@NonNull List<String> permissions, boolean allGranted) {
+                        if (!allGranted) {
+                            return;
+                        }
+                    }
+
+                    @Override
+                    public void onDenied(@NonNull List<String> permissions, boolean doNotAskAgain) {
+                        if (doNotAskAgain) {
+                        } else {
+                        }
+                    }
+                });
     }
-    /*
-     * 按键事件处理
-     */
-    class ClickEvent implements View.OnClickListener{
-        @Override
-        public void onClick(View v) {
-            if(v==btn_start_video)
-            {
-                m.reset();//恢复到未初始化的状态
-                File file=new File(getSdPath());
-                File[] files = file.listFiles();
-
-                File lFile = null;
-                for (File f : files) {
-                    lFile = new File(f.getPath());
-                    Log.e("czb", f.getPath());
-                }
-                try {
-                    m.setDataSource(lFile.getPath());
 
-                } catch (IOException e) {
-                    throw new RuntimeException(e);
+    @Override
+    public void onRequestPermissionsResult(int requestCode,
+                                           String permissions[], int[] grantResults) {
+        super.onRequestPermissionsResult(requestCode, permissions, grantResults);
+        switch (requestCode) {
+            case 123: {
+                if (grantResults.length > 0
+                        && grantResults[0] == PackageManager.PERMISSION_GRANTED) {
+                } else {
                 }
-                m.setAudioStreamType(AudioManager.STREAM_MUSIC);
-                m.setDisplay(surfaceHolder);
-
-                try {
-                    m.prepare();
-
-                } catch (IllegalArgumentException e) {
-                    // TODO Auto-generated catch block
-                    e.printStackTrace();
-                } catch (IllegalStateException e) {
-                    // TODO Auto-generated catch block
-                    e.printStackTrace();
-                } catch (IOException e) {
-                    // TODO Auto-generated catch block
-                    e.printStackTrace();
+                return;
+            }
+        }
+    }
+
+    public void playOrPause(View view){
+        final ImageButton ib= (ImageButton) view;
+        if(mediaPlayer==null){//如果没有歌
+            //mediaPlayer = MediaPlayer.create(this, R.raw.a);
+            long tmp = 0l;
+            File files = new File(getSdPath());
+            if(files.isDirectory()) {
+                File jumpFile = null;
+                for(File file : files.listFiles()) {
+                    if(file.lastModified() > tmp) {
+                        tmp = file.lastModified();
+                        jumpFile = new File(file.getAbsoluteFile().toURI());
+                    }
                 }
-                m.start();
+                Intent it = new Intent(Intent.ACTION_VIEW);
+                it.setDataAndType(Uri.parse(jumpFile.getAbsolutePath()), "video/mp4");
+                startActivity(it);
             }
+        }else if(mediaPlayer.isPlaying()){//如果正在播放
+            //暂停
+            mediaPlayer.pause();
+            //开始图标
+            ib.setImageResource(android.R.drawable.ic_media_play);
+        }else {
+            //开始播放
+            mediaPlayer.start();
+            //暂停图标
+            ib.setImageResource(android.R.drawable.ic_media_pause);
+
         }
     }
 
@@ -126,24 +142,16 @@ public class VideoViewActivity extends Activity {
         }
         return null;
     }
-    /*
-     * SeekBar进度改变事件
-     */
-    class SeekBarChangeEvent implements SeekBar.OnSeekBarChangeListener{
-        @Override
-        public void onProgressChanged(SeekBar seekBar, int progress,
-                                      boolean fromUser) {
-            // TODO Auto-generated method stub
-        }
-        @Override
-        public void onStartTrackingTouch(SeekBar seekBar) {
-            isChanging=true;
-        }
 
+    class MyThread extends Thread{
         @Override
-        public void onStopTrackingTouch(SeekBar seekBar) {
-            m.seekTo(seekBar.getProgress());
-            isChanging=false;
+        public void run() {
+            super.run();
+            while(sb_main_play.getProgress()<sb_main_play.getMax()){
+                //获得音乐当前的播放位置
+                int currentPosition=mediaPlayer.getCurrentPosition();
+                sb_main_play.setProgress(currentPosition);
+            }
         }
     }
 }

app/src/main/res/layout/activity_history.xml

@@ -0,0 +1,63 @@
+<?xml version="1.0" encoding="utf-8"?>
+<layout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools">
+
+    <data>
+        <variable
+            name="imageUrl"
+            type="String" />
+    </data>
+
+    <LinearLayout
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        android:padding="10dp"
+        tools:context=".HistoryActivity">
+
+        <TextView
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:padding="5dp"
+            android:text="图片"
+            android:textSize="17sp"
+            android:textStyle="bold" />
+
+        <LinearLayout
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:gravity="center"
+            android:orientation="horizontal">
+
+            <ImageView
+                android:id="@+id/img1"
+                android:layout_width="80dp"
+                android:layout_height="80dp"
+                android:layout_margin="5dp"
+                android:background="#000000"
+                android:src="@{imageUrl}" />
+
+            <ImageView
+                android:id="@+id/img2"
+                android:layout_width="80dp"
+                android:layout_height="80dp"
+                android:layout_margin="5dp"
+                android:src="@drawable/camera" />
+
+            <ImageView
+                android:id="@+id/img3"
+                android:layout_width="80dp"
+                android:layout_height="80dp"
+                android:layout_margin="5dp"
+                android:src="@drawable/camera" />
+
+            <ImageView
+                android:id="@+id/img4"
+                android:layout_width="80dp"
+                android:layout_height="80dp"
+                android:layout_margin="5dp"
+                android:src="@drawable/camera" />
+
+        </LinearLayout>
+    </LinearLayout>
+</layout>

app/src/main/res/layout/activity_video.xml

@@ -25,14 +25,15 @@
         app:layout_constraintLeft_toLeftOf="parent"
         app:layout_constraintTop_toTopOf="parent"
         app:srcCompat="@drawable/fan" />
-    <com.xinyanruanjian.imagemapview.ImageMapView
+    <com.cfmlg.mlg.CustomImageView
         android:id="@+id/imv"
         android:layout_width="match_parent"
         android:layout_height="match_parent"
+        android:layout_centerInParent="true"
         android:src="@drawable/ya"
-        android:scaleType="fitCenter"
-        android:visibility="gone"
-        app:imageMap="@xml/map"/>
+        android:visibility="visible"
+
+        />
     <LinearLayout
         android:id="@+id/blakgrond"
         android:layout_width="wrap_content"
@@ -131,7 +132,7 @@
             android:layout_width="200dp"
             android:layout_height="200dp"
             android:layout_centerInParent="true"
-            android:src="@drawable/disconnect">
+            >
 
         </ImageView>
 

app/src/main/res/layout/activity_video_view.xml

@@ -1,18 +1,30 @@
 <?xml version="1.0" encoding="utf-8"?>
-<LinearLayout android:id="@+id/LinearLayout01"
-    android:layout_width="fill_parent" android:layout_height="fill_parent"
+<FrameLayout
     xmlns:android="http://schemas.android.com/apk/res/android"
-    android:orientation="vertical">
-
-    <SurfaceView android:id="@+id/SurfaceView01"
-        android:layout_width="fill_parent" android:layout_height="250px"></SurfaceView>
-    <LinearLayout android:id="@+id/LinearLayout02"
-        android:layout_width="wrap_content" android:layout_height="wrap_content">
-        <Button android:layout_width="wrap_content"
-            android:layout_height="wrap_content" android:id="@+id/Button03"
-            android:text="播放视频"></Button>
-        <Button android:layout_width="wrap_content"
-            android:layout_height="wrap_content" android:text="停止播放" android:id="@+id/Button04"></Button>
-    </LinearLayout>
-</LinearLayout>
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    tools:context=".MainActivity"
+    android:orientation="vertical"
+    >
+    <SurfaceView
+        android:layout_width="match_parent"
+        android:layout_height="400dp"
+        android:id="@+id/sv_main_sur"
+        android:layout_gravity="center"
+        />
+    <SeekBar
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:visibility="invisible"
+        android:id="@+id/sb_main_play"
+        />
+    <ImageButton
+        android:layout_width="100dp"
+        android:layout_height="100dp"
+        android:layout_gravity="center"
+        android:background="@android:drawable/ic_media_play"
+        android:onClick="playOrPause"
+        />
 
+</FrameLayout>

build.gradle

@@ -2,4 +2,4 @@
 plugins {
     id 'com.android.application' version '7.4.1' apply false
     id 'com.android.library' version '7.4.1' apply false
-}
+}

gradle.properties

@@ -18,4 +18,5 @@ android.useAndroidX=true
 # Enables namespacing of each library's R class so that its R class includes only the
 # resources declared in the library itself and none from the library's dependencies,
 # thereby reducing the size of the R class for that library
-android.nonTransitiveRClass=true
+android.nonTransitiveRClass=true
+android.enableJetifier = true