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Simple Visualizer from mic input for Android.
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README.md

Voice Recording Visualizer

License Download Android Arsenal

Simple Visualizer from mic input for Android.

Usage

    @Override 
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        ...
        VisualizerView visualizerView = (VisualizerView) findViewById(R.id.visualizer);

        RecordingSampler recordingSampler = new RecordingSampler();
        recordingSampler.setVolumeListener(this);  // for custom implements
        recordingSampler.setSamplingInterval(100); // voice sampling interval
        recordingSampler.link(visualizerView);     // link to visualizer

        recordingSampler.startRecording();
    }
    
    @Override
    protected void onPause() {
        mRecordingSampler.stopRecording();
        super.onPause();
    }
    
    @Override 
    protected void onDestroy() { 
        mRecordingSampler.release();
        super.onDestroy(); 
    } 

VisualizerView

<com.tyorikan.voicerecordingvisualizer.VisualizerView
                android:id="@+id/visualizer"
                android:layout_width="100dp"
                android:layout_height="100dp"
                android:background="@android:color/black"
                app:numColumns="4"
                app:renderColor="@color/renderColor"
                app:renderRange="top" />

VisualizerView attrs

Params format value
numColumns integer num of visualizer column (ex. 5, 20, 100)
renderColor color visualizer color (ex. #EFEFEF, @color/light_blue)
renderRange enum render direction top (default), bottom, both
renderType flag render type bar (default), pixel, fade

demo

IMAGE demo

Samples

Gradle

repositories {
    jcenter()
}

dependencies {
    compile 'com.tyorikan:voice-recording-visualizer:1.0.3@aar'
}

License

Copyright 2015 tyorikan

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

   http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
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