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这是我的代码的一部分,如果我在其他代码中的另一个活动中使用该代码,例如:

    case R.id.buttonMinus:

它工作得很好,它只保存该特定按钮的背景。如果我在图形视图中使用它,它总是以“Error1”结束。(Graphview 是将图形绘制到画布中的视图)

另外,我想在应用程序的某个不同位置显示图片,我一直在尝试通过

myWebView.loadUrl(Environment.getExternalStorageDirectory()+ File.separator + "DivePlanner" + File.separator + "Dive.png");

但没有运气

我整天都被困在这个问题上,如果有人可以提供帮助,请提前致谢!

buttonClick.performClick();

}

public void onClick(View v) {

    String[] verlabels = new String[] {"0m", Float.toString(-max/2) + "m", Float.toString(-max) + "m"};
    String[] horlabels = new String[] {"0 min",Float.toString((int)x[pocetBodu]/2)+" min",Float.toString((int)x[pocetBodu])+" min"};
    GraphView graphView = new GraphView(this, y, "Dive Manager",horlabels, verlabels, GraphView.LINE,x,Pspotreba,pocetBodu,pocetUseku);
    setContentView(graphView);


    if(Save)
    {
        graphView.buildDrawingCache();
        Bitmap bm=graphView.getDrawingCache();

        OutputStream fOut = null;
        Uri outputFileUri;
        try {
                File root = new File(Environment.getExternalStorageDirectory()+ File.separator + "DivePlanner" + File.separator);
                root.mkdirs();
                File sdImageMainDirectory = new File(root, "Dive.png");
                outputFileUri = Uri.fromFile(sdImageMainDirectory);
                fOut = new FileOutputStream(sdImageMainDirectory);
           }
        catch (Exception e) {
                Toast.makeText(this, "Error", Toast.LENGTH_SHORT).show();
           }


        try {
                bm.compress(Bitmap.CompressFormat.PNG, 100, fOut);
                fOut.flush();
                fOut.close();
                Toast.makeText(this, "Ponor uložen", Toast.LENGTH_SHORT).show();
           } 
        catch (Exception e) {
            Toast.makeText(this, "Error1", Toast.LENGTH_SHORT).show();
           }
    }
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