我正在尝试为alertdialog中的textview添加边距。
AlertDialog.Builder builder = new AlertDialog.Builder(getContext());
builder.setTitle(notificationList.get(position).getNotificationTitle());
final TextView tv = new TextView(getContext());
tv.setInputType( InputType.TYPE_CLASS_NUMBER );
tv.setText(notificationList.get(position).getNotificationMessage());
builder.setView(tv);
我正在尝试将我的脚本更改为此
AlertDialog.Builder builder = new AlertDialog.Builder(getContext());
builder.setTitle(notificationList.get(position).getNotificationTitle());
LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT);
params.setMargins(10,10,10,10);
final TextView tv = new TextView(getContext());
tv.setLayoutParams(params);
tv.setInputType( InputType.TYPE_CLASS_NUMBER );
tv.setText(notificationList.get(position).getNotificationMessage());
builder.setView(tv);
但仍然没有帮助,所以如何为我的textview添加保证金?
试试这个吧。在添加textView时,您不需要tv.setInputType(InputType.TYPE_CLASS_NUMBER);
AlertDialog.Builder builder = new AlertDialog.Builder(mContext);
builder.setTitle((notificationList.get(position).getNotificationTitle());
final TextView tv = new TextView(mContext);
FrameLayout.LayoutParams layoutParams = new FrameLayout.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT);
layoutParams.height = 100;
layoutParams.width = FrameLayout.MarginLayoutParams.MATCH_PARENT;
layoutParams.setMargins(50, 20, 50, 10);
tv.setText(notificationList.get(position).getNotificationMessage());
tv.setGravity(Gravity.CENTER);
builder.setView(tv);
builder.create().show();
tv.setLayoutParams(layoutParams);
您可以根据需要更改layoutParams.setMargins(int left, int top, int right, int bottom)
的保证金。 mContext
是您正在使用警报对话框的活动的上下文。因此,请确保该活动应具有Theme.AppCompat主题。或者您可以更改应用程序的样式。
例如:
public class MainActivity extends AppCompatActivity {
private Context mContext;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mContext = this;
}
}
现在,您可以使用mContext
作为当前活动中的上下文或活动中的后续片段。
请尝试下面的代码
AlertDialog.Builder builder = new AlertDialog.Builder(getContext());
builder.setTitle(notificationList.get(position).getNotificationTitle());
final LinearLayout ll = new LinearLayout(getContext());
ll.removeAllViews();
final TextView tv = new TextView(getContext());
tv.setInputType( InputType.TYPE_CLASS_NUMBER );
tv.setText(notificationList.get(position).getNotificationMessage());
LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT);
params.setMargins(10,10,10,10);
tv.setLayoutParams(params);
ll.addView(tv);
builder.setView(ll);