处理dp<0情况，提示内录权限问题

Author: zhaolewei

README.md

@@ -6,12 +6,15 @@
 3. 实时获取录音的音量、及录音byte数据
 4. 获取wav/mp3录音文件的时长
 5. 可配置录音的采样率、位宽  （v1.04更新）
-5. 录音可视化 （v1.05更新）
-5. 音源支持内录（Android10及以上版本支持） （v1.09更新）
+6. 录音可视化 （v1.05更新）
+7. 音源支持内录（Android10及以上版本支持） （v1.10更新）
 
 ### 博客
 https://www.jianshu.com/p/c0222de2faed
 
+### 演示视频
+https://www.bilibili.com/video/BV1ikCCBREuJ/?vd_source=ec0fc1b63e4c5db56b1eca157710edd7
+
 ### Gradle
 [![](https://jitpack.io/v/zhaolewei/ZlwAudioRecorder.svg)](https://jitpack.io/#zhaolewei/ZlwAudioRecorder)
 

app/src/main/java/com/zlw/audio_recorder/MainActivity.java

@@ -20,6 +20,7 @@
 import androidx.activity.result.contract.ActivityResultContract;
 import androidx.annotation.Nullable;
 
+import com.blankj.utilcode.util.ToastUtils;
 import com.yanzhenjie.permission.AndPermission;
 import com.yanzhenjie.permission.runtime.Permission;
 import com.zlw.audio_recorder.base.MyApp;
@@ -227,6 +228,11 @@ public void onSoundSize(int soundSize) {
             public void onResult(File result) {
                 Toast.makeText(MainActivity.this, "录音文件： " + result.getAbsolutePath(), Toast.LENGTH_SHORT).show();
             }
+
+            @Override
+            public void onError(String errorMsg) {
+                ToastUtils.showLong("Error：" + errorMsg);
+            }
         });
         recordManager.setRecordFftDataListener(new RecordFftDataListener() {
             @Override

app/src/main/java/com/zlw/audio_recorder/TestHzActivity.java

@@ -16,6 +16,7 @@
 
 import androidx.activity.ComponentActivity;
 
+import com.blankj.utilcode.util.ToastUtils;
 import com.yanzhenjie.permission.AndPermission;
 import com.yanzhenjie.permission.runtime.Permission;
 import com.zlw.audio_recorder.base.MyApp;
@@ -147,6 +148,11 @@ public void onError(String error) {
             public void onResult(File result) {
                 Toast.makeText(TestHzActivity.this, "录音文件： " + result.getAbsolutePath(), Toast.LENGTH_SHORT).show();
             }
+
+            @Override
+            public void onError(String errorMsg) {
+                ToastUtils.showLong("Error:" + errorMsg);
+            }
         });
         recordManager.setRecordFftDataListener(new RecordFftDataListener() {
             @Override

recorderlib/src/main/java/com/zlw/main/recorderlib/recorder/RecordHelper.java

@@ -237,7 +237,10 @@ private int getDb(byte[] data) {
             sum += data[i] * data[i];
         }
         ave = sum / (length - offsetStart);
-        return (int) (Math.log10(ave) * 20);
+        int db = (int) (Math.log10(ave) * 20);
+        // BugFix 声音结束阶段数据为-MAX_INT, 数据应展示为0;
+        if (db < 0) db = 0;
+        return db;
     }
 
     private void initMp3EncoderThread(int bufferSize) {
@@ -262,7 +265,8 @@ private class AudioRecordThread extends Thread {
             if (currentConfig.getSource() == RecordConfig.SOURCE_SYSTEM
                     && android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.Q) {
                 if (RecordManager.getInstance().getMediaProjection() == null) {
-                    throw new NullPointerException("Error: RecordManager.getInstance().getMediaProjection() is null");
+                    recordResultListener.onError("请授予屏幕权限！");
+                    return;
                 }
                 AudioFormat audioFormat = new AudioFormat.Builder()
                         .setEncoding(currentConfig.getEncodingConfig())

recorderlib/src/main/java/com/zlw/main/recorderlib/recorder/listener/RecordResultListener.java

@@ -13,4 +13,7 @@ public interface RecordResultListener {
      * @param result 录音文件
      */
     void onResult(File result);
+
+
+    void onError(String errorMsg);
 }