android – 如何在EditTextPreference的右侧显示当前值？

我是Android的新手.我正在学习PreferenceActivity.
我需要一些关于如何在它们右侧显示EditTextPreference的当前值的指导.像这样：

-------------------------------------- 
|EditTextPreference            value |
|"Summary"                           |
--------------------------------------

这可能是代码：

activity_main.xml中


setting_preference.xml


MainActivity.java

public class MainActivity extends Activity {
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        Button btn = (Button) findViewById(R.id.btn);
        btn.setOnClickListener(new OnClickListener() {
            @Override
            public void onClick(View v) {
                // TODO Auto-generated method stub
                Intent intentSetting = new Intent(MainActivity.this,Setting.class);
                startActivityForResult(intentSetting,1);
            }
        });
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.main,menu);
        return true;
    }
    @Override
    protected void onActivityResult(int requestCode,int resultCode,Intent data) {
        super.onActivityResult(requestCode,resultCode,data);
        int  k = 0;
    }
    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        // Handle action bar item clicks here. The action bar will
        // automatically handle clicks on the Home/Up button,so long
        // as you specify a parent activity in AndroidManifest.xml.
        int id = item.getItemId();
        if (id == R.id.action_settings) {
            return true;
        }
        return super.onOptionsItemSelected(item);
    }
}

我真的很感激你的帮助！


最佳答案
您需要为此创建自定义视图.

public class EditTextPreferenceWithValue extends EditTextPreference {
    private TextView textValue;

    public EditTextPreferenceWithValue(Context context) {
        super(context);
        setLayoutResource(R.layout.preference_with_value);
    }

    public EditTextPreferenceWithValue(Context context,AttributeSet attrs) {
        super(context,attrs);
        setLayoutResource(R.layout.preference_with_value);
    }

    public EditTextPreferenceWithValue(Context context,AttributeSet attrs,int defStyle) {
        super(context,attrs,defStyle);
        setLayoutResource(R.layout.preference_with_value);
    }

    @Override
    protected void onBindView(View view) {
        super.onBindView(view);
        textValue = (TextView) view.findViewById(R.id.preference_value);
        if (textValue != null) {
            textValue.setText(getText());
        }
    }

    @Override
    public void setText(String text) {
        super.setText(text);
        if (textValue != null) {
            textValue.setText(getText());
        }
    }
}  

preference_with_value.xml



 原文链接：https://www.f2er.com/android/431202.html

android – 如何在EditTextPreference的右侧显示当前值？

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