这是我的 addbudget 类
public class addbudget extends ActionBarActivity implements View.OnClickListener{
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.addbudget);
btn66=(Button)findViewById(R.id.btn_addBudget);
btn66.setOnClickListener(this);
helper=new DBhelper(addbudget.this);
txr=(TextView)findViewById(R.id.addbud);
txtBudget=(EditText)findViewById(R.id.etBudget);
list = (ListView) findViewById(R.id.list);
list.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> arg0, View arg1, int position, long arg3) {
String h;
Cursor row = (Cursor) arg0.getItemAtPosition(position);
selected_did = row.getString(0);
h = row.getString(1);
txtBudget.setText(h);
}
});
Bundle data_from_list= getIntent().getExtras();
value_in_tv= data_from_list.getString("passed data key");
txr.setText(value_in_tv);
fetchData2();
}
private void clearfield(){
txtBudget.setText("");
}
public void onClick(View v) {
if (btn66 == v) {
checkIfRowPresent(txr.getText().toString());
}
}
public boolean checkIfRowPresent(String name) {
SQLiteDatabase db = helper.getWritableDatabase();
Cursor cursor =
db.query(DBhelper.TABLE2, null, DBhelper.Description + "='" + name + "'", null, null, null,
null, null);
boolean ret = false;
if (cursor.getCount() > 0) {
Toast.makeText(this, "Budget not add Successfully", Toast.LENGTH_LONG).show();// There is a row present in table1 with the given name
}
else{
ContentValues value = new ContentValues();
value.put(DBhelper.Amount, txtBudget.getText().toString());
value.put(DBhelper.Description, txr.getText().toString());
db = helper.getWritableDatabase();
db.insert(DBhelper.TABLE2, null, value);
db.close();
clearfield();
Toast.makeText(this, "Budget add Successfully", Toast.LENGTH_LONG).show();
fetchData2();
Intent i = new Intent(addbudget.this, MainActivity.class);
startActivity(i);
}
db.close();
return ret;
}
private void fetchData2() {
db = helper.getReadableDatabase();
Cursor c = db.query(DBhelper.TABLE2, null, DBhelper.Description + "='" + value_in_tv+"'", null, null, null, null);
adapter = new SimpleCursorAdapter(
this,
R.layout.addbudget,
c,
new String[]{DBhelper.Amount},
new int[]{R.id.lbl});
list.setAdapter(adapter);
}
}
这是我的 addbudget.xml
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent"
android:layout_height="match_parent" android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="25dp"
android:paddingBottom="@dimen/activity_vertical_margin"
>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="20dp"
android:text="Category "
android:id="@+id/textView3"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Budget"
android:layout_marginTop="20dp"
android:id="@+id/textView4"
android:layout_below="@+id/spinner_cat"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true" />
<Spinner
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/spinner_cat"
android:entries="@array/array_categories"
android:layout_alignTop="@+id/textView3"
android:layout_toRightOf="@+id/textView3"
android:layout_toEndOf="@+id/textView3" />
<EditText
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:inputType="numberDecimal"
android:ems="10"
android:id="@+id/etBudget"
android:layout_below="@+id/spinner_cat"
android:layout_alignLeft="@+id/spinner_cat"
android:layout_alignStart="@+id/spinner_cat" />
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Add Budget"
android:id="@+id/btn_addBudget"
android:layout_marginTop="30dp"
android:layout_below="@+id/etBudget"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true"
android:layout_alignRight="@+id/etBudget"
android:layout_alignEnd="@+id/etBudget" />
</RelativeLayout>
在另一个 xml 布局中，我有一个按钮，如果我单击该按钮，则该 Activity 需要作为 float Activity 打开。
我谷歌了这个问题，但答案似乎有点棘手。我不太明白，任何人都可以帮助我将上述 Activity 更改为 float Activity 吗？
最佳答案
这是一个逐步实现的过程。我将复制粘贴我的代码并对其进行解释。
在您的 style.xml 中添加此内容，您可以根据需要进行修改
<style name="PopupTheme" parent="Theme.AppCompat.Light.Dialog">
<item name="android:windowIsFloating">false</item>
<item name="android:windowContentOverlay">@null</item>
<item name="android:windowSoftInputMode">stateAlwaysHidden</item>
<item name="windowActionModeOverlay">true</item>
<item name="android:windowIsTranslucent">true</item>
<item name="android:windowCloseOnTouchOutside">false</item>
<item name="android:colorBackgroundCacheHint">@null</item>
<item name="android:backgroundDimEnabled">true</item>
<item name="colorAccent">@color/color_primary</item>
</style>
创建您的Activity 文件及其Layout。
在Activity的 .class文件中，您可以在onAttachWindow Override方法中处理屏幕尺寸，例如:
@Override
public void onAttachedToWindow() {
super.onAttachedToWindow();
int screenSize = getResources().getConfiguration().screenLayout & Configuration.SCREENLAYOUT_SIZE_MASK;
switch (screenSize) {
case Configuration.SCREENLAYOUT_SIZE_LARGE:
this.getWindow().setLayout(900, 755);
break;
case Configuration.SCREENLAYOUT_SIZE_XLARGE:
this.getWindow().setLayout(1080, 1000); //width x height
break;
}
}
最后，在您的 AndroidManifest.xml 文件中添加此内容
<activity android:name=".MyFloatingActivity"
android:enabled="true"
android:theme="@style/PopupTheme"<--The theme in style
android:label="@string/app_name"/>
关于java - 如何使我的简单 Activity 成为 android-studio 中的 float Activity ？，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/33198323/