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Android垂直搜寻酒吧,如Google Play音乐应用程式

我想要垂直seekBar像下面的图像(对于 android 4.O)).它在 Google Play Music应用程序.

我已经尝试了下面的方式:但我不能设置高&宽度

<SeekBar 
    android:id="@+id/seekBar1" 
    android:layout_width="match_parent" 
    android:layout_height="wrap_content" 
    android:rotation="270" 
    />

我想要如下:

现在我已经使用这个Stack Answer,但它太难以管理多个垂直搜索栏.

我正在寻找比这更好的方法.

编辑:

我已经使用下面的代码iDroid Explorer’s answer尝试显示垂直搜索栏:

private void setupEqualizerFxAndUI() {

        for (short i = 0; i < 5; i++) {

            LinearLayout.LayoutParams layoutParams = new LinearLayout.LayoutParams(
                    ViewGroup.LayoutParams.MATCH_PARENT,ViewGroup.LayoutParams.MATCH_PARENT);
            layoutParams.weight = 3;

            LinearLayout row = new LinearLayout(this);
            row.setorientation(LinearLayout.VERTICAL);
            row.setLayoutParams(layoutParams);

            TextView minDbTextView = new TextView(this);
            minDbTextView.setLayoutParams(new ViewGroup.LayoutParams(
                    ViewGroup.LayoutParams.WRAP_CONTENT,ViewGroup.LayoutParams.WRAP_CONTENT));
            minDbTextView.setText(i + " dB");

            TextView maxDbTextView = new TextView(this);
            maxDbTextView.setLayoutParams(new ViewGroup.LayoutParams(
                    ViewGroup.LayoutParams.WRAP_CONTENT,ViewGroup.LayoutParams.WRAP_CONTENT));
            maxDbTextView.setText(i + " dB");

            LinearLayout.LayoutParams layoutParams1 = new LinearLayout.LayoutParams(
                    ViewGroup.LayoutParams.MATCH_PARENT,ViewGroup.LayoutParams.WRAP_CONTENT);
            layoutParams1.weight = 2;

            SeekBar bar = new SeekBar(this);
            bar.setLayoutParams(layoutParams1);
            bar.setMax(100);
            bar.setProgress(20);
            bar.setRotation(270);
            bar.setonSeekBarchangelistener(new SeekBar.OnSeekBarchangelistener() {
                public void onProgressChanged(SeekBar seekBar,int progress,boolean fromUser) {

                }

                public void onStartTrackingTouch(SeekBar seekBar) {
                }

                public void onStopTrackingTouch(SeekBar seekBar) {
                }
            });

            row.addView(minDbTextView);
            row.addView(bar);
            row.addView(maxDbTextView);

            mLinearLayout.addView(row);

        }
    }

但它看起来像下面:指示器不显示.

如果我只使用一个seekBar,那么它的外观如下所示:

它同样喜欢使用:android:rotation =“270”在布局文件中.

解决方法

你有检查android的示例代码 AudioFXDemo吗?如果没有,请检查它,看看它是否对您有帮助.

Equalizer与Google Music应用程序相同.

检查下面的示例代码示例:

private void setupEqualizerFxAndUI() {
        // Create the Equalizer object (an AudioEffect subclass) and attach it to our media player,// with a default priority (0).
          try {
            System.out.println("setupEqualizerFxAndUI eEqualizer is: "+mEqualizer);
            System.out.println("setupEqualizerFxAndUI mIRemoteService: "+mIRemoteService);
            mEqualizer = new Equalizer(0,mIRemoteService.getAudioSessionId());
        } catch (IllegalStateException e) {
            e.printstacktrace();
        } catch (IllegalArgumentException e) {
            e.printstacktrace();
        } catch (UnsupportedOperationException e) {
            e.printstacktrace();
        } catch (remoteexception e) {
            e.printstacktrace();
        } catch (RuntimeException e) {
            e.printstacktrace();
        } // Error in this line

        if(onOffBtn.isChecked()){  
            mEqualizer.setEnabled(true);
        }

        short bands = 5 ;
        //System.out.println("bands are: "+bands);

        LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.WRAP_CONTENT,LinearLayout.LayoutParams.WRAP_CONTENT);
        params.weight = 1;

        LinearLayout newOne = new LinearLayout(this);
        newOne.setLayoutParams(params);
        newOne.setorientation(LinearLayout.HORIZONTAL);

        final short mineQLevel = mEqualizer.getBandLevelRange()[0];
        final short maxEQLevel = mEqualizer.getBandLevelRange()[1];

        //System.out.println("Minimum value::: "+mineQLevel);
        //System.out.println("Maximum value::: "+maxEQLevel);

        //VerticalSeekBar[] bar = new VerticalSeekBar[5];

        for (short i = 0; i < bands; i++) {
            final short band = i;

          /*  TextView freqTextView = new TextView(this);
            freqTextView.setLayoutParams(new ViewGroup.LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT,ViewGroup.LayoutParams.WRAP_CONTENT));
            freqTextView.setGravity(Gravity.CENTER_HORIZONTAL);
            freqTextView.setText((mEqualizer.getCenterFreq(band) / 1000) + " Hz");
            newOne.addView(freqTextView);*/

            LinearLayout row = new LinearLayout(this);

            row.setorientation(LinearLayout.VERTICAL);

            TextView minDbTextView = new TextView(this);
            minDbTextView.setLayoutParams(new ViewGroup.LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT,ViewGroup.LayoutParams.WRAP_CONTENT));
            minDbTextView.setText((mineQLevel / 100) + " dB");
            minDbTextView.setTextColor(0xff000000);

            TextView maxDbTextView = new TextView(this);
            maxDbTextView.setLayoutParams(new ViewGroup.LayoutParams( ViewGroup.LayoutParams.WRAP_CONTENT,ViewGroup.LayoutParams.WRAP_CONTENT));
            maxDbTextView.setText((maxEQLevel / 100) + " dB");
            maxDbTextView.setTextColor(0xff000000);

            LinearLayout.LayoutParams layoutParams = new LinearLayout.LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT,300);
            layoutParams.setMargins(0,10,10);

//--------------------------

           // setClassicTone(maxEQLevel,mineQLevel);

            VerticalSeekBar bar =  new VerticalSeekBar(this);

            bar = new VerticalSeekBar(this);
            bar.setLayoutParams(layoutParams);
            bar.setMax(maxEQLevel - mineQLevel);
            bar.setProgress(mEqualizer.getBandLevel(band));
            //bar.setMax(3000);
            //bar.setProgress(mEqualizer.getBandLevel(band)+1500);
            bar.setPadding(0,10);

            //bar.setProgressDrawable(R.drawable.scrubber_progress_horizontal_holo_light);
            bar.setProgressDrawable(getResources().getDrawable(R.drawable.scrubber_progress_horizontal_holo_light));
            bar.setThumb(getResources().getDrawable(R.drawable.scrubber_control_selector_holo));
            //System.out.println("Progress:::"+(mEqualizer.getBandLevel(band)));
            //bar[i].setProgress((maxEQLevel-mineQLevel)/2);
            mEqualizer.setBandLevel(band,(short) ((maxEQLevel-mineQLevel)));
            //System.out.println("Presets are: "+mEqualizer.getNumberOfPresets()+" And name is:  "+mEqualizer.getPresetName(i));

            //mEqualizer.setBandLevel(band,level)
            bar.setonSeekBarchangelistener(new SeekBar.OnSeekBarchangelistener() {
                public void onProgressChanged(SeekBar seekBar,boolean fromUser) {
                    System.out.println("Seek bar change ");
                    presetsspinner.setSelection(0);
                    mEqualizer.setBandLevel(band,(short) (progress + mineQLevel));

                }

                public void onStartTrackingTouch(SeekBar seekBar) {}
                public void onStopTrackingTouch(SeekBar seekBar) {}
            });

            row.addView(maxDbTextView);
            row.addView(bar);
            row.addView(minDbTextView);

            newOne.addView(row,params);
        }

        equalizerLayout.addView(newOne);
    }

而VerticalSeekBar是以下类:

import android.content.Context;
import android.graphics.Canvas;
import android.util.AttributeSet;
import android.view.MotionEvent;
import android.widget.SeekBar;

public class VerticalSeekBar extends SeekBar {

    public VerticalSeekBar(Context context) {
        super(context);
    }

    public VerticalSeekBar(Context context,AttributeSet attrs,int defStyle) {
        super(context,attrs,defStyle);
    }

    public VerticalSeekBar(Context context,AttributeSet attrs) {
        super(context,attrs);
    }

    protected void onSizeChanged(int w,int h,int oldw,int oldh) {
        super.onSizeChanged(h,w,oldh,oldw);
    }

    @Override
    protected synchronized void onMeasure(int widthMeasureSpec,int heightMeasureSpec) {
        super.onMeasure(heightMeasureSpec,widthMeasureSpec);
        setMeasuredDimension(getMeasuredHeight(),getMeasuredWidth());
    }

    protected void onDraw(Canvas c) {
        c.rotate(-90);
        c.translate(-getHeight(),0);

        super.onDraw(c);
    }

    @Override
    public boolean onTouchEvent(MotionEvent event) {
        if (!isEnabled()) {
            return false;
        }

        switch (event.getAction()) {
            case MotionEvent.ACTION_DOWN:
            case MotionEvent.ACTION_MOVE:
            case MotionEvent.ACTION_UP:
                setProgress(getMax() - (int) (getMax() * event.getY() / getHeight()));
                onSizeChanged(getWidth(),getHeight(),0);

                break;

            case MotionEvent.ACTION_CANCEL:
                break;
        }
        return true;
    }
}

希望以上代码帮助你.如果不是,请让我知道.

享受编码…

原文地址:https://www.jb51.cc/android/311207.html

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