java - 根据两个旋转器更改图像

Question

我花了大约 3 天的时间寻找这个答案，最后决定自己创建这个问题。

基本上我有一个带有两个旋转器的 Activity 。一是头发的类型，二是头发的颜色。你知道我要说的是什么了。我希望能够根据所选的两个项目来更改图片(头部)。

如果我没有理解，这里有一个例子:

1. Activity 已加载(旋转器设置为“秃头”和“黑色”)
   • 头发秃了。
2. 将头发类型更改为“男性短发”
   • 头发变为黑色短发。
3. 将颜色更改为“金发”
   • 头发变为男性金色短发。

但是第3步不起作用!!!

这段代码太长了，但大部分都是重复的内容，所以不应该花太长时间来理解:)

protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.head_zoom);
    Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
    setSupportActionBar(toolbar);

    Spinner hairSpinner = (Spinner) findViewById(R.id.hairSpinner);
    hairSpinner.setOnItemSelectedListener(this);
    List<String> hairTypeArray = new ArrayList<String>();
    hairTypeArray.add("Bald");
    hairTypeArray.add("Female Short");
    hairTypeArray.add("Female Medium");
    hairTypeArray.add("Female Long");
    hairTypeArray.add("Male Short");
    hairTypeArray.add("Male Medium");
    hairTypeArray.add("Male Long");
    ArrayAdapter<String> hairTypeAdapter = new ArrayAdapter<String>(this,
            android.R.layout.simple_spinner_item, hairTypeArray);
    hairTypeAdapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
    hairSpinner.setAdapter(hairTypeAdapter);

    Spinner hairColor = (Spinner) findViewById(R.id.hairColor);
    hairColor.setOnItemSelectedListener(this);
    List<String> hairColorArray = new ArrayList<>();
    hairColorArray.add("Black");
    hairColorArray.add("Blonde");
    hairColorArray.add("Blue");
    hairColorArray.add("Brown");
    hairColorArray.add("Ginger");
    hairColorArray.add("Green");
    hairColorArray.add("Red");
    ArrayAdapter<String> hairColorAdapter = new ArrayAdapter<String>(this,
            android.R.layout.simple_spinner_item, hairColorArray);
    hairColorAdapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
    hairColor.setAdapter(hairColorAdapter);
}

public void onItemSelected(AdapterView<?> parent, View view, int position, long id){
    String item = parent.getItemAtPosition(position).toString();
    String type = "Bald", color = "Black";
    //Toast.makeText(parent.getContext(), "Selected: "+item, Toast.LENGTH_LONG).show();
    Spinner spinner = (Spinner) parent;
    if(spinner.getId() == R.id.hairSpinner) {
        type = item;
    }
    else {
        color = item;
    }

    final ImageView imageView = (ImageView)findViewById(R.id.head);
    switch(type){
        case "Bald":
            imageView.setImageResource((R.drawable.sw_head));
            break;
        case "Female Short":
            if(color=="Black")
                imageView.setImageResource(R.drawable.fhair_short_black);
            else if(color=="Blonde")
                imageView.setImageResource(R.drawable.fhair_short_blonde);
            else if(color=="Blue")
                imageView.setImageResource(R.drawable.fhair_short_blue);
            else if(color=="Brown")
                imageView.setImageResource(R.drawable.fhair_short_brown);
            else if(color=="Ginger")
                imageView.setImageResource(R.drawable.fhair_short_ginger);
            else if(color=="Green")
                imageView.setImageResource(R.drawable.fhair_short_green);
            else if(color=="Red")
                imageView.setImageResource(R.drawable.fhair_short_red);
            break;
        case "Female Medium":
            if(color=="Black")
                imageView.setImageResource(R.drawable.fhair_med_black);
            else if(color=="Blonde")
                imageView.setImageResource(R.drawable.fhair_med_blonde);
            else if(color=="Blue")
                imageView.setImageResource(R.drawable.fhair_med_blue);
            else if(color=="Brown")
                imageView.setImageResource(R.drawable.fhair_med_brown);
            else if(color=="Ginger")
                imageView.setImageResource(R.drawable.fhair_med_ginger);
            else if(color=="Green")
                imageView.setImageResource(R.drawable.fhair_med_green);
            else if(color=="Red")
                imageView.setImageResource(R.drawable.fhair_med_red);
            break;
        case "Female Long":
            if(color=="Black")
                imageView.setImageResource(R.drawable.fhair_long_black);
            else if(color=="Blonde")
                imageView.setImageResource(R.drawable.fhair_long_blonde);
            else if(color=="Blue")
                imageView.setImageResource(R.drawable.fhair_long_blue);
            else if(color=="Brown")
                imageView.setImageResource(R.drawable.fhair_long_brown);
            else if(color=="Ginger")
                imageView.setImageResource(R.drawable.fhair_long_ginger);
            else if(color=="Green")
                imageView.setImageResource(R.drawable.fhair_long_green);
            else if(color=="Red")
                imageView.setImageResource(R.drawable.fhair_long_red);
            break;
        case "Male Short":
            if(color=="Black")
                imageView.setImageResource(R.drawable.mhair_short_black);
            else if(color=="Blonde")
                imageView.setImageResource(R.drawable.mhair_short_blonde);
            else if(color=="Blue")
                imageView.setImageResource(R.drawable.mhair_short_blue);
            else if(color=="Brown")
                imageView.setImageResource(R.drawable.mhair_short_brown);
            else if(color=="Ginger")
                imageView.setImageResource(R.drawable.mhair_short_ginger);
            else if(color=="Green")
                imageView.setImageResource(R.drawable.mhair_short_green);
            else if(color=="Red")
                imageView.setImageResource(R.drawable.mhair_short_red);
            break;
        case "Male Medium":
            if(color=="Black")
                imageView.setImageResource(R.drawable.mhair_med_black);
            else if(color=="Blonde")
                imageView.setImageResource(R.drawable.mhair_med_blonde);
            else if(color=="Blue")
                imageView.setImageResource(R.drawable.mhair_med_blue);
            else if(color=="Brown")
                imageView.setImageResource(R.drawable.mhair_med_brown);
            else if(color=="Ginger")
                imageView.setImageResource(R.drawable.mhair_med_ginger);
            else if(color=="Green")
                imageView.setImageResource(R.drawable.mhair_med_green);
            else if(color=="Red")
                imageView.setImageResource(R.drawable.mhair_med_red);
            break;
        case "Male Long":
            if(color=="Black")
                imageView.setImageResource(R.drawable.mhair_long_black);
            else if(color=="Blonde")
                imageView.setImageResource(R.drawable.mhair_long_blonde);
            else if(color=="Blue")
                imageView.setImageResource(R.drawable.mhair_long_blue);
            else if(color=="Brown")
                imageView.setImageResource(R.drawable.mhair_long_brown);
            else if(color=="Ginger")
                imageView.setImageResource(R.drawable.mhair_long_ginger);
            else if(color=="Green")
                imageView.setImageResource(R.drawable.mhair_long_green);
            else if(color=="Red")
                imageView.setImageResource(R.drawable.mhair_long_red);
            break;
    }
}

public void onNothingSelected(AdapterView<?> parent){

}

问题是，每当从任一微调器中选择一个项目时，它都会激活监听器，但不会考虑另一个微调器。因此，如果我改变头发颜色，它会重置为秃头，因为

    String type = "Bald", color = "Black";

感谢您提供的任何帮助，谢谢。

Answer 1

您必须将开关分成两个不同的开关，一个用于发型，另一个用于头发颜色。您现在要做的是确定发型并休息一下，而不是颜色方面。

        if (view == hairSpinner){
        switch (item){
            case "Bald":
            case "Female Short":
            case "Female Medium":
            case "Female Long":
            case "Male Short":
            case "Male Medium":
            case "Male Long":
                type = item;
                break;
        }
    }
    else{
        switch (item){
            case "Black":
            case "Blonde":
            case "Blue":
            case "Brown":
            case "Ginger":
            case "Green":
            case "Red":
                color = item;
                break;
        }
    }