【问题标题】:Seekbar want to save progress [duplicate]Seekbar想要保存进度[重复]
【发布时间】:2013-03-31 21:05:50
【问题描述】:

我正在使用搜索栏,我想保存用户在搜索栏中所做的更改,并且应该在下次他打开应用程序时显示。我的代码是

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    start=-10;      //you need to give starting value of SeekBar 
    end=10;         //you need to give end value of SeekBar 
        start_pos=5;    //you need to give starting position value of SeekBar 

        start_position=(int) (((start_pos-start)/(end-start))*100); 
        discrete=start_pos; 
        SeekBar seek=(SeekBar) findViewById(R.id.seekBar1); 
        seek.setProgress(start_position); 
        seek.setOnSeekBarChangeListener(new OnSeekBarChangeListener(){ 

            public void onStopTrackingTouch(SeekBar seekBar) { 
                // TODO Auto-generated method stub 
                Toast.makeText(getBaseContext(), "discrete = "+String.valueOf(discrete), Toast.LENGTH_SHORT).show(); 
            } 
            public void onStartTrackingTouch(SeekBar seekBar) { 
                // TODO Auto-generated method stub 

            } 
            public void onProgressChanged(SeekBar seekBar, int progress,boolean fromUser) { 
                // TODO Auto-generated method stub 
                // To convert it as discrete value 
                float temp=progress; 
                float dis=end-start; 
                discrete=(start+((temp/100)*dis)); 

            } 
        }); 
    } 
}

【问题讨论】:

    标签: android


    【解决方案1】:

    查看post - 并尝试了解如何优先保存数据。 然后在你的活动中

    @Override
    protected void onPause() {
    super.onPause();
     // save seekBarPgrogress to preference here.
    }    
    
    @Override
    protected void onResume() {
    super.onResume();
    // load seekBarPgrogress from preference here.
    // and call seek.setProgress(position);
    }
    

    希望对你有所帮助

    【讨论】:

      【解决方案2】:

      在 onPause 中将搜索栏进度保存到共享首选项,并在 onResume 中从共享首选项设置搜索栏进度

      【讨论】:

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