java - 带有 5 个复选框的进度条

Question

我需要进度条来加载选中的复选框数量的百分比。

我尝试将它用于 5 个复选框:

“progressbar.setProgress (20)”(如果已选中)，如果不是“progressbar.setProgress (-20)”

即使选中了 5 个复选框，进度条也仅加载“20%”。有人可以帮助我吗？

公共(public)类 MainActivity 扩展 AppCompatActivity {

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


    final ProgressBar progressBar = (ProgressBar) findViewById(R.id.progressBar);
    final CheckBox checkBox = (CheckBox) findViewById(R.id.checkBox);
    final CheckBox checkBox2 = (CheckBox) findViewById(R.id.checkBox2);
    final CheckBox checkBox3 = (CheckBox) findViewById(R.id.checkBox3);
    final CheckBox checkBox4 = (CheckBox) findViewById(R.id.checkBox4);
    final CheckBox checkBox5 = (CheckBox) findViewById(R.id.checkBox5);


    SharedPreferences preferences = PreferenceManager.getDefaultSharedPreferences(this);
    final SharedPreferences.Editor editor = preferences.edit();
    if (preferences.contains("checkbox1") && preferences.getBoolean("checkbox1", false) == true) {
        checkBox.setChecked(true);
    } else {
        checkBox.setChecked(false);

    }
    checkBox.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
        @Override
        public void onCheckedChanged(CompoundButton compoundButton, boolean b) {
            if (checkBox.isChecked()) {
                editor.putBoolean("checkbox1", true);
                progressBar.setProgress(20);
                editor.apply();
            } else {
                editor.putBoolean("checkbox1", false);
                progressBar.setProgress(-20);
                editor.apply();
            }
        }
    });


    if (preferences.contains("checkbox2") && preferences.getBoolean("checkbox2", false) == true) {
        checkBox2.setChecked(true);
    } else {
        checkBox2.setChecked(false);

    }
    checkBox2.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
        @Override
        public void onCheckedChanged(CompoundButton compoundButton, boolean b) {
            if (checkBox2.isChecked()) {
                editor.putBoolean("checkbox2", true);
                progressBar.setProgress(20);
                editor.apply();
            } else {
                editor.putBoolean("checkbox2", false);
                progressBar.setProgress(-20);
                editor.apply();
            }
        }
    });


    if (preferences.contains("checkbox3") && preferences.getBoolean("checkbox3", false) == true) {
        checkBox3.setChecked(true);
    } else {
        checkBox3.setChecked(false);

    }
    checkBox3.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
        @Override
        public void onCheckedChanged(CompoundButton compoundButton, boolean b) {
            if (checkBox3.isChecked()) {
                editor.putBoolean("checkbox3", true);
                progressBar.setProgress(20);
                editor.apply();
            } else {
                editor.putBoolean("checkbox3", false);
                progressBar.setProgress(-20);
                editor.apply();
            }
        }
    });

    if (preferences.contains("checkbox4") && preferences.getBoolean("checkbox4", false) == true) {
        checkBox4.setChecked(true);
    } else {
        checkBox4.setChecked(false);

    }
    checkBox4.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
        @Override
        public void onCheckedChanged(CompoundButton compoundButton, boolean b) {
            if (checkBox4.isChecked()) {
                editor.putBoolean("checkbox4", true);
                progressBar.setProgress(20);
                editor.apply();
            } else {
                editor.putBoolean("checkbox4", false);
                progressBar.setProgress(-20);
                editor.apply();
            }
        }
    });

    if (preferences.contains("checkbox5") && preferences.getBoolean("checkbox5", false) == true) {
        checkBox5.setChecked(true);
    } else {
        checkBox5.setChecked(false);

    }
    checkBox5.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
        @Override
        public void onCheckedChanged(CompoundButton compoundButton, boolean b) {
            if (checkBox5.isChecked()) {
                editor.putBoolean("checkbox5", true);
                progressBar.setProgress(20);
                editor.apply();
            } else {
                editor.putBoolean("checkbox5", false);
                progressBar.setProgress(-20);
                editor.apply();
            }
        }
    });

}

}

Answer 1

您的问题是您总是将其设置为 20 或 -20，而不是从当前值更新它。使用

progressBar.setProgress(progressBar.getProgress()+20);

或

progressBar.setProgress(progressBar.getProgress()-20);