I beg some leniency here, I'm just starting with the Android SDK tutorials and I'm attempting something out of interest that's not in the tutorial itself, but I would hope would be easy.
I am trying to center a TextView
item via code horizontally and vertically (I can do it in XML just fine). I've seen several examples of how to do this when the parent is a table or some other object, but I hope this would be easier for me to grasp. (p.s. Feel free to correct my terminology).
Here is the example code from the tutorial / my working model:
package com.example.myfirstapp; import android.os.Bundle; import android.app.Activity; import android.content.Intent; import android.view.ViewGroup.LayoutParams; import android.widget.TextView; public class DisplayMessageActivity extends Activity { @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); Intent intent = getIntent(); String message = intent.getStringExtra(MainActivity.EXTRA_MESSAGE); TextView textView = new TextView(this); textView.setTextSize(40); textView.setText(message); textView.setGravity(View.TEXT_ALIGNMENT_GRAVITY); setContentView(textView); } }
I've managed to locate the setGravity
method, and I've tried to dabble in the setLayoutParams
for it, but I'm not sure what the scope is for it as I can't locate what I should be importing to get the WRAP_CONTENT
constant to resolve. From what I understood, centering and content_wrapping+gravity are two separate things. I'd like an example of how to do both in this case and maybe how/where I would have found the answer in the API documentation?
android:gravity="center" for text center in TextView. android:gravity="center_horizontal" inner text if you want horizontally centered. android:gravity="center_vertical" inner text if you want vertically centered. android:layout_centerInParent="true" if you want TextView in center position of parent view.
To center align text in TextView in Kotlin Android, set android:textAlignment attribute with the value “center” in layout file, or programmatically set the textAlignment property of the TextView object with View. TEXT_ALIGNMENT_CENTER in activity file.
To align text in TextView at the center vertically and horizontally we need to make use of gravity attribute. Example 1 : You can use center_vertical | center_horizontal value to set the text at the center of the TextView area.
Show activity on this post. android:gravity="center_horizontal" for align text Center horizontally. android:gravity="center_vertical" for align text Center vertically. android:gravity="center" for align text Center both vertically and horizontally.
yourTextView.setGravity(Gravity.CENTER);
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