जवाबों:
बस एक मूल उदाहरण:
RelativeLayout.LayoutParams params = new RelativeLayout.LayoutParams(RelativeLayout.LayoutParams.WRAP_CONTENT, RelativeLayout.LayoutParams.WRAP_CONTENT);
params.addRule(RelativeLayout.ALIGN_PARENT_LEFT, RelativeLayout.TRUE);
Button button1;
button1.setLayoutParams(params);
params = new RelativeLayout.LayoutParams(RelativeLayout.LayoutParams.WRAP_CONTENT, RelativeLayout.LayoutParams.WRAP_CONTENT);
params.addRule(RelativeLayout.RIGHT_OF, button1.getId());
Button button2;
button2.setLayoutParams(params);
जैसा कि आप देख सकते हैं, यह आपको करना है:
RelativeLayout.LayoutParams
वस्तु बनाएँ ।addRule(int)
या addRule(int, int)
सेट करना। पहली विधि का उपयोग उन नियमों को जोड़ने के लिए किया जाता है जिन्हें मूल्यों की आवश्यकता नहीं होती है।ViewGroup.LayoutParams
। यदि आप इसे कम चाहते हैं, तो बस एक आयात जोड़ें जिसमें शामिल हैं RelativeLayout.LayoutParams
।
RelativeLayout layout = new RelativeLayout(this);
RelativeLayout.LayoutParams labelLayoutParams = new RelativeLayout.LayoutParams(
LayoutParams.FILL_PARENT, LayoutParams.FILL_PARENT);
layout.setLayoutParams(labelLayoutParams);
// If you want to add some controls in this Relative Layout
labelLayoutParams = new RelativeLayout.LayoutParams(
LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);
labelLayoutParams.addRule(RelativeLayout.CENTER_IN_PARENT);
ImageView mImage = new ImageView(this);
mImage.setBackgroundResource(R.drawable.popupnew_bg);
layout.addView(mImage,labelLayoutParams);
setContentView(layout);
कुछ इस तरह..
RelativeLayout linearLayout = (RelativeLayout) findViewById(R.id.widget43);
// ListView listView = (ListView) findViewById(R.id.ListView01);
LayoutInflater inflater = (LayoutInflater) this
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
// View footer = inflater.inflate(R.layout.footer, null);
View footer = LayoutInflater.from(this).inflate(R.layout.footer,
null);
final RelativeLayout.LayoutParams layoutParams = new RelativeLayout.LayoutParams(
RelativeLayout.LayoutParams.FILL_PARENT,
RelativeLayout.LayoutParams.FILL_PARENT);
layoutParams.addRule(RelativeLayout.ALIGN_PARENT_BOTTOM, 1);
footer.setLayoutParams(layoutParams);
यदि आप इसे बनाते हैं तो आपके बारे में केवल दृश्य से लेआउट लेआउट कैसे खींचते हैं।
$((RelativeLayout)findViewById(R.id.imageButton1)).getLayoutParams();
मुझे उम्मीद है कि नीचे दिया गया कोड मदद करेगा। यह एक EditText और एक लॉग इन बटन बनाएगा। दोनों को अपेक्षाकृत रखा गया। सभी MainActivity.java में किया।
package com.example.atul.allison;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.widget.RelativeLayout;
import android.widget.Button;
import android.graphics.Color;
import android.widget.EditText;
import android.content.res.Resources;
import android.util.TypedValue;
public class MainActivity extends AppCompatActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
//Layout
RelativeLayout atulsLayout = new RelativeLayout(this);
atulsLayout.setBackgroundColor(Color.GREEN);
//Button
Button redButton = new Button(this);
redButton.setText("Log In");
redButton.setBackgroundColor(Color.RED);
//Username input
EditText username = new EditText(this);
redButton.setId(1);
username.setId(2);
RelativeLayout.LayoutParams buttonDetails= new RelativeLayout.LayoutParams(
RelativeLayout.LayoutParams.WRAP_CONTENT,
RelativeLayout.LayoutParams.WRAP_CONTENT
);
RelativeLayout.LayoutParams usernameDetails= new RelativeLayout.LayoutParams(
RelativeLayout.LayoutParams.WRAP_CONTENT,
RelativeLayout.LayoutParams.WRAP_CONTENT
);
//give rules to position widgets
usernameDetails.addRule(RelativeLayout.ABOVE,redButton.getId());
usernameDetails.addRule(RelativeLayout.CENTER_HORIZONTAL);
usernameDetails.setMargins(0,0,0,50);
buttonDetails.addRule(RelativeLayout.CENTER_HORIZONTAL);
buttonDetails.addRule(RelativeLayout.CENTER_VERTICAL);
Resources r = getResources();
int px = (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, 200,r.getDisplayMetrics());
username.setWidth(px);
//Add widget to layout(button is now a child of layout)
atulsLayout.addView(redButton,buttonDetails);
atulsLayout.addView(username,usernameDetails);
//Set these activities content/display to this view
setContentView(atulsLayout);
}
}