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                        /Android-仿微信語音聊天

按下按鈕之后沒有dialog出現，松開后就閃退，是真機測試的log，請教老師……

package?com.example.wechattest;

import?android.app.Dialog;
import?android.content.Context;
import?android.view.LayoutInflater;
import?android.view.View;
import?android.widget.ImageView;
import?android.widget.TextView;

public?class?DialogManager?{
	private?Dialog?mDialog;

	private?ImageView?mIcon;
	private?ImageView?mVoice;

	private?TextView?mLable;

	private?Context?mContext;

	public?DialogManager(Context?context)?{
		mContext?=?context;
	}

	public?void?showRecordingDialog()?{
		mDialog?=?new?Dialog(mContext,R.style.AudioDialogTheme);
		LayoutInflater?inflater?=?LayoutInflater.from(mContext);
		View?view?=?inflater.inflate(R.layout.dialog_recorder,?null);
		mDialog.setContentView(view);

		mIcon?=?(ImageView)?mDialog.findViewById(R.id.iv_dialog_icon);
		mVoice?=?(ImageView)?mDialog.findViewById(R.id.iv_dialog_voice);

		mLable?=?(TextView)?mDialog.findViewById(R.id.tv_dialog_lable);

		mDialog.show();
	}

	public?void?recording()?{
		if?(mDialog?!=?null?&&?mDialog.isShowing())?{
			mIcon.setVisibility(View.VISIBLE);
			mVoice.setVisibility(View.VISIBLE);
			mLable.setVisibility(View.VISIBLE);

			mIcon.setImageResource(R.drawable.recorder);
			mLable.setText(R.string.recorder_to_cancel);
		}
	}

	public?void?wantToCancel()?{
		if?(mDialog?!=?null?&&?mDialog.isShowing())?{
			mIcon.setVisibility(View.VISIBLE);
			mVoice.setVisibility(View.GONE);
			mLable.setVisibility(View.VISIBLE);

			mIcon.setImageResource(R.drawable.cancel);
			mLable.setText(R.string.recorder_cancel);
		}
	}

	public?void?tooShort()?{
		if?(mDialog?!=?null?&&?mDialog.isShowing())?{
			mIcon.setVisibility(View.VISIBLE);
			mVoice.setVisibility(View.GONE);
			mLable.setVisibility(View.VISIBLE);

			mIcon.setImageResource(R.drawable.voice_to_short);
			mLable.setText(R.string.recorder_too_short);
		}
	}

	public?void?dimissDialog()?{
		if?(mDialog?!=?null?&&?mDialog.isShowing())?{
			mDialog.dismiss();
			mDialog?=?null;
		}
	}
/**
?*?通過level更新voice上的圖片
?*?@param?level
?*/
	public?void?updateVoiceLevel(int?level)?{
		if?(mDialog?!=?null?&&?mDialog.isShowing())?{
//			mIcon.setVisibility(View.VISIBLE);
//			mVoice.setVisibility(View.VISIBLE);
//			mLable.setVisibility(View.VISIBLE);

			int?resid?=?mContext.getResources().getIdentifier("v"?+?level,
					"drawable",?mContext.getPackageName());
			mIcon.setImageResource(resid);
			mLable.setText(R.string.recorder_too_short);
		}
	}
}

/////////////////////////////////////////////////////////////////////
package?com.example.wechattest;

import?java.io.File;
import?java.io.IOException;
import?java.security.GeneralSecurityException;
import?java.util.UUID;

import?android.media.MediaRecorder;

public?class?AudioManager?{
	private?MediaRecorder?mMediaRecorder;
	private?String?mCurrentFilePath;
	private?String?mDir;
	private?static?AudioManager?mInstance;

	private?boolean?isPrepared;

	private?AudioManager(String?dir)?{
		mDir?=?dir;
	}

	public?interface?AudioStateListenner?{
		void?wellPrepared();
	}

	public?AudioStateListenner?mListenner;

	public?void?setOnAudioAudioStateListenner(AudioStateListenner?listenner)?{
		mListenner?=?listenner;
	}

	public?static?AudioManager?getInstance(String?dir)?{
		if?(mInstance?==?null)?{

			synchronized?(AudioManager.class)?{

				if?(mInstance?==?null)?{

					mInstance?=?new?AudioManager(dir);
				}
			}
		}
		return?mInstance;
	}

	public?void?prepareAudio()?{
		try?{
			isPrepared?=?false;

			File?dir?=?new?File(mDir);
			if?(!dir.exists())
				dir.mkdirs();

			String?fileName?=?generateFileName();
			File?file?=?new?File(dir,?fileName);

			mCurrentFilePath?=?file.getAbsolutePath();
			mMediaRecorder?=?new?MediaRecorder();
			mMediaRecorder.setOutputFile(file.getAbsolutePath());
			//?音源
			mMediaRecorder.setAudioSource(MediaRecorder.AudioSource.MIC);
			//?音頻的格式
			mMediaRecorder.setOutputFormat(MediaRecorder.OutputFormat.RAW_AMR);
			//?音頻的編碼
			mMediaRecorder.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB);

			mMediaRecorder.prepare();
			mMediaRecorder.start();
			//?準備結束
			isPrepared?=?true;
			if?(mListenner?!=?null)
				mListenner.wellPrepared();
		}?catch?(IllegalStateException?e)?{
			//?TODO?Auto-generated?catch?block
			e.printStackTrace();
		}?catch?(IOException?e)?{
			//?TODO?Auto-generated?catch?block
			e.printStackTrace();
		}
	}

	private?String?generateFileName()?{

		return?UUID.randomUUID().toString()?+?".amr";
	}

	public?int?getVoiceLevel(int?maxLevel)?{
		if?(isPrepared)?{
			//?mMediaRecorder.getMaxAmplitude()值在1-32767之間
			try?{
				return?maxLevel?*?mMediaRecorder.getMaxAmplitude()?/?32768?+?1;
			}?catch?(IllegalStateException?e)?{
			}
		}

		return?1;

	}

	public?void?release()?{
		mMediaRecorder.stop();
		mMediaRecorder.release();
		mMediaRecorder?=?null;
	}

	public?void?cancel()?{

		release();

		if?(mCurrentFilePath?!=?null)?{
			File?f?=?new?File(mCurrentFilePath);
			f.delete();
			mCurrentFilePath?=?null;
		}
	}

	public?String?getCurrentFilePath()?{
		//?TODO?Auto-generated?method?stub
		return?mCurrentFilePath;
	}
}

/////////////////////////////////////////////////////////////////////
package?com.example.wechattest;

import?com.example.wechattest.AudioManager.AudioStateListenner;

import?android.content.Context;
import?android.os.Environment;
import?android.os.Handler;
import?android.util.AttributeSet;
import?android.view.MotionEvent;
import?android.view.View;
import?android.widget.Button;

public?class?AudioButtonView?extends?Button?implements?AudioStateListenner?{
	private?static?final?int?DISTANCE?=?50;
	private?static?final?int?STATE_NORMAL?=?1;
	private?static?final?int?STATE_RECORDING?=?2;
	private?static?final?int?STATE_CANCEL?=?3;
	private?int?mState?=?STATE_NORMAL;
	private?boolean?isRecording?=?false;

	private?DialogManager?mDialogManager;

	private?AudioManager?mAudioManager;

	private?float?mTime;
	//?是否出發長按
	private?boolean?mReady?=?false;

	public?AudioButtonView(Context?context,?AttributeSet?attrs)?{
		super(context,?attrs);
		mDialogManager?=?new?DialogManager(getContext());
		String?dir?=?Environment.getDataDirectory()?+?"/wechat_self";
		mAudioManager?=?AudioManager.getInstance(dir);
		mAudioManager.setOnAudioAudioStateListenner(this);
		setOnLongClickListener(new?OnLongClickListener()?{

			@Override
			public?boolean?onLongClick(View?v)?{
				mReady?=?true;
				mAudioManager.prepareAudio();
				return?false;
			}
		});
	}

	/**
	?*?錄音完成后的回調
	?*?
	?*?@author?Administrator
	?*?
	?*/
	public?interface?audioFinishRecorderListener?{
		void?onFinish(float?seconds,?String?filePath);

	}

	private?audioFinishRecorderListener?mListener;

	public?void?setAudioFinishRecorderListener(
			audioFinishRecorderListener?listener)?{
		mListener?=?listener;
	}

	/**
	?*?獲取音量大小的Runnable
	?*/
	private?Runnable?mGetVoiceLevelRunnable?=?new?Runnable()?{

		@Override
		public?void?run()?{
			while?(isRecording)?{
				try?{
					Thread.sleep(100);
					mTime?+=?0.1f;
					mHandler.sendEmptyMessage(MSG_VOICE_CHANGED);
				}?catch?(InterruptedException?e)?{
					e.printStackTrace();
				}
			}
		}
	};

	private?static?final?int?MSG_AUDIO_PREPARED?=?0X110;
	private?static?final?int?MSG_VOICE_CHANGED?=?0X111;
	private?static?final?int?MSG_DIALOG_DIMISS?=?0X112;
	private?Handler?mHandler?=?new?Handler()?{
		public?void?handlerMessage(android.os.Message?msg)?{
			switch?(msg.what)?{
			case?MSG_AUDIO_PREPARED:
				mDialogManager.showRecordingDialog();
				isRecording?=?true;
				new?Thread(mGetVoiceLevelRunnable).start();
				break;

			case?MSG_VOICE_CHANGED:
				mDialogManager.updateVoiceLevel(mAudioManager.getVoiceLevel(7));
				break;

			case?MSG_DIALOG_DIMISS:

				break;
			}
		};
	};

	@Override
	public?void?wellPrepared()?{
		mHandler.sendEmptyMessage(MSG_AUDIO_PREPARED);
	}

	public?AudioButtonView(Context?context)?{
		this(context,?null);
		//?TODO?Auto-generated?constructor?stub
	}

	@Override
	public?boolean?onTouchEvent(MotionEvent?event)?{
		int?action?=?event.getAction();
		int?x?=?(int)?event.getX();
		int?y?=?(int)?event.getY();
		switch?(action)?{
		case?MotionEvent.ACTION_DOWN:
			changeState(STATE_RECORDING);
			break;
		case?MotionEvent.ACTION_MOVE:
			if?(isRecording)?{
				if?(wantToCancel(x,?y))?{
					changeState(STATE_CANCEL);
				}?else?{
					changeState(STATE_RECORDING);
				}
			}
			break;
		case?MotionEvent.ACTION_UP:
			if?(!mReady)?{
				reset();
				return?super.onTouchEvent(event);
			}
			if?(!isRecording?||?mTime?<?0.6f)?{
				mDialogManager.tooShort();

				mAudioManager.cancel();
				mHandler.sendEmptyMessageDelayed(MSG_DIALOG_DIMISS,?1300);

			}?else?if?(mState?==?STATE_RECORDING)?{
				//?正常錄制結束
				mDialogManager.dimissDialog();
				mAudioManager.release();
				if?(mListener?!=?null)?{
					mListener.onFinish(mTime,
							mAudioManager.getCurrentFilePath());
				}
			}?else?if?(mState?==?STATE_CANCEL)?{
				mDialogManager.dimissDialog();
				mAudioManager.cancel();
			}
			reset();
			break;
		}
		return?super.onTouchEvent(event);
	}

	private?void?reset()?{
		//?TODO?Auto-generated?method?stub
		isRecording?=?false;
		mReady?=?false;
		changeState(STATE_NORMAL);
		mTime?=?0;
	}

	private?boolean?wantToCancel(int?x,?int?y)?{
		if?(x?<?0?||?x?>?getWidth())?{
			return?true;
		}?else?if?(y?<?-DISTANCE?||?y?>?getHeight()?+?DISTANCE)?{
			return?true;
		}
		return?false;
	}

	private?void?changeState(int?state)?{
		//?TODO?Auto-generated?method?stub
		if?(mState?!=?state)?{
			mState?=?state;
			switch?(state)?{
			case?STATE_NORMAL:
				setBackgroundResource(R.drawable.state_recorder_normal);
				setText(R.string.recorder_normal);
				break;
			case?STATE_RECORDING:
				setBackgroundResource(R.drawable.state_recorder_pressed);
				setText(R.string.recorder_recording);
				if?(isRecording)?{
					//?todo?show?dialog.recording
					mDialogManager.recording();
				}
				break;
			case?STATE_CANCEL:
				setBackgroundResource(R.drawable.state_recorder_pressed);
				setText(R.string.recorder_cancel);
				if?(isRecording)?{
					//?todo?show?dialog.cancel
					mDialogManager.wantToCancel();
				}
				break;
			}
		}
	}

}

///////////////下面這是log日志/////////////////////////////
03-11?11:26:20.292:?E/Trace(5189):?error?opening?trace?file:?No?such?file?or?directory?(2)
03-11?11:26:24.732:?E/MediaRecorder(5189):?stop?called?in?an?invalid?state:?4
03-11?11:26:24.732:?E/InputEventReceiver(5189):?Exception?dispatching?input?event.
03-11?11:26:24.732:?E/MessageQueue-JNI(5189):?Exception?in?MessageQueue?callback:?handleReceiveCallback
03-11?11:26:24.762:?E/MessageQueue-JNI(5189):?java.lang.IllegalStateException
03-11?11:26:24.762:?E/MessageQueue-JNI(5189):?	at?android.media.MediaRecorder.native_stop(Native?Method)
03-11?11:26:24.762:?E/MessageQueue-JNI(5189):?	at?android.media.MediaRecorder.stop(MediaRecorder.java:777)
03-11?11:26:24.762:?E/MessageQueue-JNI(5189):?	at?com.example.wechattest.AudioManager.release(AudioManager.java:101)
03-11?11:26:24.762:?E/MessageQueue-JNI(5189):?	at?com.example.wechattest.AudioManager.cancel(AudioManager.java:108)
03-11?11:26:24.762:?E/MessageQueue-JNI(5189):?	at?com.example.wechattest.AudioButtonView.onTouchEvent(AudioButtonView.java:142)
03-11?11:26:24.762:?E/MessageQueue-JNI(5189):?	at?android.view.View.dispatchTouchEvent(View.java:7143)
03-11?11:26:24.762:?E/MessageQueue-JNI(5189):?	at?android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2176)
03-11?11:26:24.762:?E/MessageQueue-JNI(5189):?	at?android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1919)
03-11?11:26:24.762:?E/MessageQueue-JNI(5189):?	at?android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2176)
03-11?11:26:24.762:?E/MessageQueue-JNI(5189):?	at?android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1919)
03-11?11:26:24.762:?E/MessageQueue-JNI(5189):?	at?android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2176)
03-11?11:26:24.762:?E/MessageQueue-JNI(5189):?	at?android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1919)
03-11?11:26:24.762:?E/MessageQueue-JNI(5189):?	at?android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2176)
03-11?11:26:24.762:?E/MessageQueue-JNI(5189):?	at?android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1919)
03-11?11:26:24.762:?E/MessageQueue-JNI(5189):?	at?android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2176)
03-11?11:26:24.762:?E/MessageQueue-JNI(5189):?	at?android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1919)
03-11?11:26:24.762:?E/MessageQueue-JNI(5189):?	at?com.android.internal.policy.impl.PhoneWindow$DecorView.superDispatchTouchEvent(PhoneWindow.java:1942)
03-11?11:26:24.762:?E/MessageQueue-JNI(5189):?	at?com.android.internal.policy.impl.PhoneWindow.superDispatchTouchEvent(PhoneWindow.java:1396)
03-11?11:26:24.762:?E/MessageQueue-JNI(5189):?	at?android.app.Activity.dispatchTouchEvent(Activity.java:2399)
03-11?11:26:24.762:?E/MessageQueue-JNI(5189):?	at?com.android.internal.policy.impl.PhoneWindow$DecorView.dispatchTouchEvent(PhoneWindow.java:1890)
03-11?11:26:24.762:?E/MessageQueue-JNI(5189):?	at?android.view.View.dispatchPointerEvent(View.java:7323)
03-11?11:26:24.762:?E/MessageQueue-JNI(5189):?	at?android.view.ViewRootImpl.deliverPointerEvent(ViewRootImpl.java:3200)
03-11?11:26:24.762:?E/MessageQueue-JNI(5189):?	at?android.view.ViewRootImpl.deliverInputEvent(ViewRootImpl.java:3145)
03-11?11:26:24.762:?E/MessageQueue-JNI(5189):?	at?android.view.ViewRootImpl.doProcessInputEvents(ViewRootImpl.java:4181)
03-11?11:26:24.762:?E/MessageQueue-JNI(5189):?	at?android.view.ViewRootImpl.enqueueInputEvent(ViewRootImpl.java:4160)
03-11?11:26:24.762:?E/MessageQueue-JNI(5189):?	at?android.view.ViewRootImpl$WindowInputEventReceiver.onInputEvent(ViewRootImpl.java:4252)
03-11?11:26:24.762:?E/MessageQueue-JNI(5189):?	at?android.view.InputEventReceiver.dispatchInputEvent(InputEventReceiver.java:171)
03-11?11:26:24.762:?E/MessageQueue-JNI(5189):?	at?android.os.MessageQueue.nativePollOnce(Native?Method)
03-11?11:26:24.762:?E/MessageQueue-JNI(5189):?	at?android.os.MessageQueue.next(MessageQueue.java:125)
03-11?11:26:24.762:?E/MessageQueue-JNI(5189):?	at?android.os.Looper.loop(Looper.java:124)
03-11?11:26:24.762:?E/MessageQueue-JNI(5189):?	at?android.app.ActivityThread.main(ActivityThread.java:4825)
03-11?11:26:24.762:?E/MessageQueue-JNI(5189):?	at?java.lang.reflect.Method.invokeNative(Native?Method)
03-11?11:26:24.762:?E/MessageQueue-JNI(5189):?	at?java.lang.reflect.Method.invoke(Method.java:511)
03-11?11:26:24.762:?E/MessageQueue-JNI(5189):?	at?com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:841)
03-11?11:26:24.762:?E/MessageQueue-JNI(5189):?	at?com.android.internal.os.ZygoteInit.main(ZygoteInit.java:608)
03-11?11:26:24.762:?E/MessageQueue-JNI(5189):?	at?dalvik.system.NativeStart.main(Native?Method)
03-11?11:26:24.782:?E/dalvikvm(5189):?GC_CONCURRENT?freed?343K,?8%?free?8403K/9095K,?paused?12ms+2ms,?total?41ms

mmll120

2016-03-11

源自：Android-仿微信語音聊天 4-3

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3 回答

依樂祝
2016-04-04

430行錯誤代碼??error?opening?trace?file:?No?such?file?or?directory?(2) ? 是不是沒有創建對應的文件夾路徑所致

0 回復有任何疑惑可以回復我~

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漫長的不滿
2016-03-28

? 應該是報空指針異常了吧？ ?mMediaRecorder.prepare(); 這句話這里出現了異常，但不是RuntimeException，所以不會馬上崩潰。但是mMediaRecorder.prepare();下面的語句執行不了。就導致有東西報空指針了。仔細檢查MediaRecorder的準備步驟，看看哪里有問題。或者權限的添加是否有問題。