Question

我的应用有10个复选框，当选中5个复选框时，我想在下面的ImageView中显示图片。但我不知道如何编码。如果这里有人可以帮我解决这个问题，我会非常感激。

Answer 1

您可以将checkedListener添加到所有复选框，并初始化复选框的计数器。检查每个复选框时检查更新计数器，当计数器达到计数时5执行您需要的操作

checkbox.setOnCheckedChangeListener(new OnCheckedChangeListener() {

        @Override
        public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
            // TODO Auto-generated method stub
            if(isChecked) {
               checkBoxCounter = checkboxCounter + 1;
               if(checkBoxCounter == 5)
                 //do your imageview task here;
                 imageView.setImageResource(R.drawable.ic_image);
            } else {
               //if checkbox is unchecked
               checkBoxCounter = checkBoxCounter - 1;
            }
        }
    });

将此代码放在onCheckedListener

的所有复选框中

Answer 2

    public class babyconquistas extends AppCompatActivity {

EditText conqtext1, conqtext2,
Button button;
ImageView img, img1;
CheckBox conq1, conq2, conq3, conq4, conq5, conq6, conq7, conq8, conq9, conq10;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_babyconquistas);

    img = (ImageView) findViewById(R.id.imgconq2);
    img1 = (ImageView) findViewById(R.id.imgconq4);

    conq1 = (CheckBox) findViewById(R.id.conq1);
    conq2 = (CheckBox) findViewById(R.id.conq2);
    conq3 = (CheckBox) findViewById(R.id.conq3);
    conq4 = (CheckBox) findViewById(R.id.conq4);
    conq5 = (CheckBox) findViewById(R.id.conq5);


    conq6 = (CheckBox) findViewById(R.id.conq6);
    conq7 = (CheckBox) findViewById(R.id.conq7);
    conq8 = (CheckBox) findViewById(R.id.conq8);
    conq9 = (CheckBox) findViewById(R.id.conq9);
    conq10 = (CheckBox) findViewById(R.id.conq10);


    conqtext1 = (EditText) findViewById(R.id.conq1text);
    conqtext2 = (EditText) findViewById(R.id.conq2text);
    button = (Button) findViewById(R.id.salvar);
    loadSavedPreferences();

}


//checkboxes
private void loadSavedPreferences() {
    SharedPreferences sp = PreferenceManager
            .getDefaultSharedPreferences(this);
    boolean cbValue1 = sp.getBoolean("CHECKBO1", false);
    boolean cbValue2 = sp.getBoolean("CHECKBO2", false);
    boolean cbValue3 = sp.getBoolean("CHECKBO3", false);
    boolean cbValue4 = sp.getBoolean("CHECKBO4", false);
    boolean cbValue5 = sp.getBoolean("CHECKBO5", false);
    boolean cbValue6 = sp.getBoolean("CHECKBO6", false);
    boolean cbValue7 = sp.getBoolean("CHECKBO7", false);
    boolean cbValue8 = sp.getBoolean("CHECKBO8", false);
    boolean cbValue9 = sp.getBoolean("CHECKBO9", false);
    boolean cbValue10 = sp.getBoolean("CHECKBO10", false);


    if (cbValue1) {
        conq1.setChecked(true);

    } else {
        conq1.setChecked(false);
    }
    if (cbValue2) {
        conq2.setChecked(true);
    } else {
        conq2.setChecked(false);
    }
    if (cbValue3) {
        conq3.setChecked(true);
    } else {
        conq3.setChecked(false);
    }
    if (cbValue4) {
        conq4.setChecked(true);
    } else {
        conq4.setChecked(false);
    }
    if (cbValue5) {
        conq5.setChecked(true);
    } else {
        conq5.setChecked(false);
    }
    if (cbValue6) {
        conq6.setChecked(true);
    } else {
        conq6.setChecked(false);
    }
    if (cbValue7) {
        conq7.setChecked(true);
    } else {
        conq7.setChecked(false);
    }
    if (cbValue8) {
        conq8.setChecked(true);
    } else {
        conq8.setChecked(false);
    }
    if (cbValue9) {
        conq9.setChecked(true);
    } else {
        conq9.setChecked(false);
    }
    if (cbValue10) {
        conq10.setChecked(true);
    } else {
        conq10.setChecked(false);
    }


}


private void savePreferences(String key, boolean value) {
    SharedPreferences sp = PreferenceManager
            .getDefaultSharedPreferences(this);
    SharedPreferences.Editor edit = sp.edit();
    edit.putBoolean(key, value);
    edit.commit();
}

private void savePreferences(String key, String value) {
    SharedPreferences sp = PreferenceManager
            .getDefaultSharedPreferences(this);
    SharedPreferences.Editor edit = sp.edit();
    edit.putString(key, value);
    edit.commit();
}

public void Salvar(View v) {
    // TODO Auto-generated method stub


    savePreferences("N1", conqtext1.getText().toString());
    savePreferences("N2", conqtext2.getText().toString());


    savePreferences("CHECKBO1", conq1.isChecked());
    savePreferences("CHECKBO2", conq2.isChecked());
    savePreferences("CHECKBO3", conq3.isChecked());
    savePreferences("CHECKBO4", conq4.isChecked());
    savePreferences("CHECKBO5", conq5.isChecked());
    savePreferences("CHECKBO6", conq6.isChecked());
    savePreferences("CHECKBO7", conq7.isChecked());
    savePreferences("CHECKBO8", conq8.isChecked());
    savePreferences("CHECKBO9", conq9.isChecked());
    savePreferences("CHECKBO10", conq10.isChecked());



}

有10个复选框。

如果第一组5个复选框是全部检查，则显示ImageView img

和第二组5个复选框，如果全部选中此5个复选框，则显示ImageViw img1

我希望你明白，我真的很感谢你花时间帮助我，非常感谢你，如果更容易，如果你想要的话，我有teamViewer。

Answer 3

public class babyconquistas extends AppCompatActivity {

EditText conqtext1, conqtext2,
Button button;
ImageView img, img1;
CheckBox conq1, conq2, conq3, conq4, conq5, conq6, conq7, conq8, conq9, conq10;
int cbCounter1=0, cbCounter2=0;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_babyconquistas);

    img = (ImageView) findViewById(R.id.imgconq2);
    img1 = (ImageView) findViewById(R.id.imgconq4);

    conq1 = (CheckBox) findViewById(R.id.conq1);
    conq2 = (CheckBox) findViewById(R.id.conq2);
    conq3 = (CheckBox) findViewById(R.id.conq3);
    conq4 = (CheckBox) findViewById(R.id.conq4);
    conq5 = (CheckBox) findViewById(R.id.conq5);


    conq6 = (CheckBox) findViewById(R.id.conq6);
    conq7 = (CheckBox) findViewById(R.id.conq7);
    conq8 = (CheckBox) findViewById(R.id.conq8);
    conq9 = (CheckBox) findViewById(R.id.conq9);
    conq10 = (CheckBox) findViewById(R.id.conq10);


    conqtext1 = (EditText) findViewById(R.id.conq1text);
    conqtext2 = (EditText) findViewById(R.id.conq2text);
    button = (Button) findViewById(R.id.salvar);

    conq1.setOnCheckedChangeListener(new OnCheckedChangeListener() {
        @Override
        public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
             if(isChecked){
                 cbCounter1 = cbCounter1 + 1;
             } else {
                 cbCounter1 = cbCounter1 - 1;
             }
             if(cbCounter1 == 5) {
                  img.setImageResource(R.drawable.img);
                  //or if you want to handle it with visibility
                  img.setVisibility(View.VISIBLE);
             }
        }
    });

    conq2.setOnCheckedChangeListener(new OnCheckedChangeListener() {
        @Override
        public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
             if(isChecked){
                 cbCounter1 = cbCounter1 + 1;
             } else {
                 cbCounter1 = cbCounter1 - 1;
             }
             if(cbCounter1 == 5) {
                  img.setImageResource(R.drawable.img);
                  //or if you want to handle it with visibility
                  img.setVisibility(View.VISIBLE);
             }
        }
    });

    conq3.setOnCheckedChangeListener(new OnCheckedChangeListener() {
        @Override
        public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
             if(isChecked){
                 cbCounter1 = cbCounter1 + 1;
             } else {
                 cbCounter1 = cbCounter1 - 1;
             }
             if(cbCounter1 == 5) {
                  img.setImageResource(R.drawable.img);
                  //or if you want to handle it with visibility
                  img.setVisibility(View.VISIBLE);
             }
        }
    });

    conq4.setOnCheckedChangeListener(new OnCheckedChangeListener() {
        @Override
        public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
             if(isChecked){
                 cbCounter1 = cbCounter1 + 1;
             } else {
                 cbCounter1 = cbCounter1 - 1;
             }
             if(cbCounter1 == 5) {
                  img.setImageResource(R.drawable.img);
                  //or if you want to handle it with visibility
                  img.setVisibility(View.VISIBLE);
             }
        }
    });

    conq5.setOnCheckedChangeListener(new OnCheckedChangeListener() {
        @Override
        public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
             if(isChecked){
                 cbCounter1 = cbCounter1 + 1;
             } else {
                 cbCounter1 = cbCounter1 - 1;
             }
             if(cbCounter1 == 5) {
                  img.setImageResource(R.drawable.img);
                  //or if you want to handle it with visibility
                  img.setVisibility(View.VISIBLE);
             }
        }
    });

    conq6.setOnCheckedChangeListener(new OnCheckedChangeListener() {
        @Override
        public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
             if(isChecked){
                 cbCounter2 = cbCounter2 + 1;
             } else {
                 cbCounter2 = cbCounter2 - 1;
             }
             if(cbCounter2 == 5) {
                  img1.setImageResource(R.drawable.img);
                  //or if you want to handle it with visibility
                  img1.setVisibility(View.VISIBLE);
             }
        }
    });

            conq7.setOnCheckedChangeListener(new OnCheckedChangeListener() {
        @Override
        public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
             if(isChecked){
                 cbCounter2 = cbCounter2 + 1;
             } else {
                 cbCounter2 = cbCounter2 - 1;
             }
             if(cbCounter2 == 5) {
                  img1.setImageResource(R.drawable.img);
                  //or if you want to handle it with visibility
                  img1.setVisibility(View.VISIBLE);
             }
        }
    });

    conq8.setOnCheckedChangeListener(new OnCheckedChangeListener() {
        @Override
        public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
             if(isChecked){
                 cbCounter2 = cbCounter2 + 1;
             } else {
                 cbCounter2 = cbCounter2 - 1;
             }
             if(cbCounter2 == 5) {
                  img1.setImageResource(R.drawable.img);
                  //or if you want to handle it with visibility
                  img1.setVisibility(View.VISIBLE);
             }
        }
    });

    conq9.setOnCheckedChangeListener(new OnCheckedChangeListener() {
        @Override
        public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
             if(isChecked){
                 cbCounter2 = cbCounter2 + 1;
             } else {
                 cbCounter2 = cbCounter2 - 1;
             }
             if(cbCounter2 == 5) {
                  img1.setImageResource(R.drawable.img);
                  //or if you want to handle it with visibility
                  img1.setVisibility(View.VISIBLE);
             }
        }
    });

    conq10.setOnCheckedChangeListener(new OnCheckedChangeListener() {
        @Override
        public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
             if(isChecked){
                 cbCounter2 = cbCounter2 + 1;
             } else {
                 cbCounter2 = cbCounter2 - 1;
             }
             if(cbCounter2 == 5) {
                  img1.setImageResource(R.drawable.img);
                  //or if you want to handle it with visibility
                  img1.setVisibility(View.VISIBLE);
             }
        }
    });

}

此代码将执行此任务。如果您需要将信息存储在sharedPref中，那么您可以存储计数器值并选中，复选框信息，然后在页面加载时，您需要填充已选中复选框和计数器的所有数据

选中多个复选框时执行操作

3 个答案: